Bump version for 0.16.1

Fix picking the first available role on primary_host

.github/workflows/docker-publish.yml

@@ -1,6 +1,12 @@
 name: Docker
 
 on:
+  workflow_dispatch:
+    inputs:
+      tagInput:
+        description: 'Tag'
+        required: true
+    
   release:
     types: [created]
     tags:
@@ -29,6 +35,14 @@ jobs:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Determine version tag
+        id: version-tag
+        run: |
+          INPUT_VALUE="${{ github.event.inputs.tagInput }}"
+          if [ -z "$INPUT_VALUE" ]; then
+            INPUT_VALUE="${{ github.ref_name }}"
+          fi
+          echo "::set-output name=value::$INPUT_VALUE"
       -
         name: Build and push
         uses: docker/build-push-action@v3
@@ -37,5 +51,5 @@ jobs:
           platforms: linux/amd64,linux/arm64
           push: true
           tags: |
-            ghcr.io/mrsked/mrsk:latest
+            ghcr.io/basecamp/kamal:latest
-            ghcr.io/mrsked/mrsk:${{ github.ref_name }}
+            ghcr.io/basecamp/kamal:${{ steps.version-tag.outputs.value }}

CODE_OF_CONDUCT.md

@@ -1,10 +1,10 @@
 # Contributor Code of Conduct
 
-As contributors and maintainers of the MRSK project, we pledge to create a welcoming and inclusive environment for everyone. We value the participation of each member of our community and want all contributors to feel respected and valued.
+As contributors and maintainers of the Kamal project, we pledge to create a welcoming and inclusive environment for everyone. We value the participation of each member of our community and want all contributors to feel respected and valued.
 
 We are committed to providing a harassment-free experience for everyone, regardless of gender, gender identity and expression, sexual orientation, disability, physical appearance, body size, race, age, or religion (or lack thereof). We do not tolerate harassment of participants in any form.
 
-This code of conduct applies to all MRSK project spaces, including but not limited to project code, issue trackers, chat rooms, and mailing lists. Violations of this code of conduct may result in removal from the project community.
+This code of conduct applies to all Kamal project spaces, including but not limited to project code, issue trackers, chat rooms, and mailing lists. Violations of this code of conduct may result in removal from the project community.
 
 ## Our standards
 

CONTRIBUTING.md

@@ -1,18 +1,18 @@
-# Contributing to MRSK development
+# Contributing to Kamal development
 
-Thank you for considering contributing to MRSK! This document outlines some guidelines for contributing to this open source project.
+Thank you for considering contributing to Kamal! This document outlines some guidelines for contributing to this open source project.
 
-Please make sure to review our [Code of Conduct](CODE_OF_CONDUCT.md) before contributing to MRSK.
+Please make sure to review our [Code of Conduct](CODE_OF_CONDUCT.md) before contributing to Kamal.
 
 There are several ways you can contribute to the betterment of the project:
 
-- **Report an issue?** - If the issue isn’t reported, we can’t fix it. Please report any bugs, feature, and/or improvement requests on the [MRSK GitHub Issues tracker](https://github.com/mrsked/mrsk/issues).
+- **Report an issue?** - If the issue isn’t reported, we can’t fix it. Please report any bugs, feature, and/or improvement requests on the [Kamal GitHub Issues tracker](https://github.com/basecamp/kamal/issues).
-- **Submit patches** - Do you have a new feature or a fix you'd like to share? [Submit a pull request](https://github.com/mrsked/mrsk/pulls)!
+- **Submit patches** - Do you have a new feature or a fix you'd like to share? [Submit a pull request](https://github.com/basecamp/kamal/pulls)!
-- **Write blog articles** - Are you using MRSK? We'd love to hear how you're using it with your projects. Write a tutorial and post it on your blog!
+- **Write blog articles** - Are you using Kamal? We'd love to hear how you're using it with your projects. Write a tutorial and post it on your blog!
 
 ## Issues
 
-If you encounter any issues with the project, please check the [existing issues](https://github.com/mrsked/mrsk/issues) first to see if the issue has already been reported. If the issue hasn't been reported, please open a new issue with a clear description of the problem and steps to reproduce it.
+If you encounter any issues with the project, please check the [existing issues](https://github.com/basecamp/kamal/issues) first to see if the issue has already been reported. If the issue hasn't been reported, please open a new issue with a clear description of the problem and steps to reproduce it.
 
 ## Pull Requests
 
@@ -27,23 +27,23 @@ Please keep the following guidelines in mind when opening a pull request:
 - Add tests for your changes, if possible.
 - Ensure that your changes don't break existing functionality.
 
-#### Commit message guidline
+#### Commit message guidelines
 
 A good commit message should describe what changed and why.
 
 ## Development
 
-The `main` branch is regularly built and tested, but it is not guaranteed to be completely stable. Tags are created regularly from release branches to indicate new official, stable release versions of MRSK.
+The `main` branch is regularly built and tested, but it is not guaranteed to be completely stable. Tags are created regularly from release branches to indicate new official, stable release versions of Kamal.
 
-MRSK is written in Ruby. You should have Ruby 3.2+ installed on your machine in order to work on MRSK. If that's already setup, run `bundle` in the root directory to install all dependencies. Then you can run `bin/test` to run all tests.
+Kamal is written in Ruby. You should have Ruby 3.2+ installed on your machine in order to work on Kamal. If that's already setup, run `bundle` in the root directory to install all dependencies. Then you can run `bin/test` to run all tests.
 
 1. Fork the project repository.
 2. Create a new branch for your contribution.
 3. Write your code or make the desired changes.
 4. **Ensure that your code passes the project's minitests by running ./bin/test.**
 5. Commit your changes and push them to your forked repository.
-6. [Open a pull request](https://github.com/mrsked/mrsk/pulls) to the main project repository with a detailed description of your changes.
+6. [Open a pull request](https://github.com/basecamp/kamal/pulls) to the main project repository with a detailed description of your changes.
 
 ## License
 
-MRSK is released under the MIT License. By contributing to this project, you agree to license your contributions under the same license.
+Kamal is released under the MIT License. By contributing to this project, you agree to license your contributions under the same license.

Dockerfile

@@ -4,14 +4,14 @@ FROM ruby:3.2.0-alpine
 # Install  docker/buildx-bin
 COPY --from=docker/buildx-bin /buildx /usr/libexec/docker/cli-plugins/docker-buildx
 
-# Set the working directory to /mrsk
+# Set the working directory to /kamal
-WORKDIR /mrsk
+WORKDIR /kamal
 
 # Copy the Gemfile, Gemfile.lock into the container
-COPY Gemfile Gemfile.lock mrsk.gemspec ./
+COPY Gemfile Gemfile.lock kamal.gemspec ./
 
-# Required in mrsk.gemspec
+# Required in kamal.gemspec
-COPY lib/mrsk/version.rb /mrsk/lib/mrsk/version.rb
+COPY lib/kamal/version.rb /kamal/lib/kamal/version.rb
 
 # Install system dependencies
 RUN apk add --no-cache --update build-base git docker openrc openssh-client-default \
@@ -21,12 +21,12 @@ RUN apk add --no-cache --update build-base git docker openrc openssh-client-defa
 
 # Copy the rest of our application code into the container.
 # We do this after bundle install, to avoid having to run bundle
-# everytime we do small fixes in the source code.
+# every time we do small fixes in the source code.
 COPY . .
 
 # Install the gem locally from the project folder
-RUN gem build mrsk.gemspec && \
+RUN gem build kamal.gemspec && \
-    gem install ./mrsk-*.gem --no-document
+    gem install ./kamal-*.gem --no-document
 
 # Set the working directory to /workdir
 WORKDIR /workdir
@@ -36,5 +36,5 @@ WORKDIR /workdir
 RUN git config --global --add safe.directory /workdir
 
 # Set the entrypoint to run the installed binary in /workdir
-# Example:  docker run -it -v "$PWD:/workdir" mrsk init
+# Example:  docker run -it -v "$PWD:/workdir" kamal init
-ENTRYPOINT ["mrsk"]
+ENTRYPOINT ["kamal"]

Gemfile.lock

@@ -1,9 +1,10 @@
 PATH
   remote: .
   specs:
-    mrsk (0.12.0)
+    kamal (0.16.1)
       activesupport (>= 7.0)
       bcrypt_pbkdf (~> 1.0)
+      concurrent-ruby (~> 1.2)
       dotenv (~> 2.8)
       ed25519 (~> 1.2)
       net-ssh (~> 7.0)
@@ -98,8 +99,8 @@ PLATFORMS
 
 DEPENDENCIES
   debug
+  kamal!
   mocha
-  mrsk!
   railties
 
 BUNDLED WITH

README.md

@@ -1,882 +1,13 @@
-# MRSK
+# Kamal: Deploy web apps anywhere
 
-MRSK deploys web apps anywhere from bare metal to cloud VMs using Docker with zero downtime. It uses the dynamic reverse-proxy Traefik to hold requests while the new application container is started and the old one is stopped. It works seamlessly across multiple hosts, using SSHKit to execute commands. It was built for Rails applications, but works with any type of web app that can be containerized with Docker.
+From bare metal to cloud VMs using Docker, deploy web apps anywhere with zero downtime. Kamal uses the dynamic reverse-proxy Traefik to hold requests, while the new app container is started and the old one is stopped — working seamlessly across multiple hosts, using SSHKit to execute commands. Originally built for Rails apps, Kamal will work with any type of web app that can be containerized with Docker.
 
-Watch the screencast: https://www.youtube.com/watch?v=LL1cV2FXZ5I
+➡️ See [kamal-deploy.org](https://kamal-deploy.org) for documentation on [installation](https://kamal-deploy.org/docs/installation), [configuration](https://kamal-deploy.org/docs/configuration), and [commands](https://kamal-deploy.org/docs/commands).
 
-Join us on Discord: https://discord.gg/YgHVT7GCXS
+## Contributing to the documentation
 
-Ask questions: https://github.com/mrsked/mrsk/discussions
+Please help us improve Kamal's documentation on the [the basecamp/kamal-site repository](https://github.com/basecamp/kamal-site).
-
-## Installation
-
-If you have a Ruby environment available, you can install MRSK globally with:
-
-```sh
-gem install mrsk
-```
-
-...otherwise, you can run a dockerized version via an alias (add this to your .bashrc or similar to simplify re-use):
-
-```sh
-alias mrsk='docker run --rm -it -v $HOME/.ssh:/root/.ssh -v /var/run/docker.sock:/var/run/docker.sock -v ${PWD}/:/workdir  ghcr.io/mrsked/mrsk'
-```
-
-Then, inside your app directory, run `mrsk init` (or `mrsk init --bundle` within Rails 7+ apps where you want a bin/mrsk binstub). Now edit the new file `config/deploy.yml`. It could look as simple as this:
-
-```yaml
-service: hey
-image: 37s/hey
-servers:
-  - 192.168.0.1
-  - 192.168.0.2
-registry:
-  username: registry-user-name
-  password:
-    - MRSK_REGISTRY_PASSWORD
-env:
-  secret:
-    - RAILS_MASTER_KEY
-```
-
-Then edit your `.env` file to add your registry password as `MRSK_REGISTRY_PASSWORD` (and your `RAILS_MASTER_KEY` for production with a Rails app).
-
-Now you're ready to deploy to the servers:
-
-```
-mrsk deploy
-```
-
-This will:
-
-1. Connect to the servers over SSH (using root by default, authenticated by your ssh key)
-2. Install Docker on any server that might be missing it (using apt-get): root access is needed via ssh for this.
-3. Log into the registry both locally and remotely
-4. Build the image using the standard Dockerfile in the root of the application.
-5. Push the image to the registry.
-6. Pull the image from the registry onto the servers.
-7. Ensure Traefik is running and accepting traffic on port 80.
-8. Ensure your app responds with `200 OK` to `GET /up`.
-9. Start a new container with the version of the app that matches the current git version hash.
-10. Stop the old container running the previous version of the app.
-11. Prune unused images and stopped containers to ensure servers don't fill up.
-
-Voila! All the servers are now serving the app on port 80. If you're just running a single server, you're ready to go. If you're running multiple servers, you need to put a load balancer in front of them.
-
-## Vision
-
-In the past decade+, there's been an explosion in commercial offerings that make deploying web apps easier. Heroku kicked it off with an incredible offering that stayed ahead of the competition seemingly forever. These days we have excellent alternatives like Fly.io and Render. And hosted Kubernetes is making things easier too on AWS, GCP, Digital Ocean, and elsewhere. But these are all offerings that have you renting computers in the cloud at a premium. If you want to run on your own hardware, or even just have a clear migration path to do so in the future, you need to carefully consider how locked in you get to these commercial platforms. Preferably before the bills swallow your business whole!
-
-MRSK seeks to bring the advance in ergonomics pioneered by these commercial offerings to deploying web apps anywhere. Whether that's low-cost cloud options without the managed-service markup from the likes of Digital Ocean, Hetzner, OVH, etc, or it's your own colocated bare metal. To MRSK, it's all the same. Feed the config file a list of IP addresses with vanilla Ubuntu servers that have seen no prep beyond an added SSH key, and you'll be running in literally minutes.
-
-This approach gives you enormous portability. You can have your web app deployed on several clouds at ease like this. Or you can buy the baseline with your own hardware, then deploy to a cloud before a big seasonal spike to get more capacity. When you're not locked into a single provider from a tooling perspective, there are a lot of compelling options available.
-
-Ultimately, MRSK is meant to compress the complexity of going to production using open source tooling that isn't tied to any commercial offering. Not to zero, mind you. You're probably still better off with a fully managed service if basic Linux or Docker is still difficult, but as soon as those concepts are familiar, you'll be ready to go with MRSK.
-
-## Why not just run Capistrano, Kubernetes or Docker Swarm?
-
-MRSK basically is Capistrano for Containers, without the need to carefully prepare servers in advance. No need to ensure that the servers have just the right version of Ruby or other dependencies you need. That all lives in the Docker image now. You can boot a brand new Ubuntu (or whatever) server, add it to the list of servers in MRSK, and it'll be auto-provisioned with Docker, and run right away. Docker's layer caching also speeds up deployments with less mucking about on the server. And the images built for MRSK can be used for CI or later introspection.
-
-Kubernetes is a beast. Running it yourself on your own hardware is not for the faint of heart. It's a fine option if you want to run on someone else's platform, either transparently [like Render](https://thenewstack.io/render-cloud-deployment-with-less-engineering/) or explicitly on AWS/GCP, but if you'd like the freedom to move between cloud and your own hardware, or even mix the two, MRSK is much simpler. You can see everything that's going on, it's just basic Docker commands being called.
-
-Docker Swarm is much simpler than Kubernetes, but it's still built on the same declarative model that uses state reconciliation. MRSK is intentionally designed around imperative commands, like Capistrano.
-
-Ultimately, there are a myriad of ways to deploy web apps, but this is the toolkit we're using at [37signals](https://37signals.com) to bring [HEY](https://www.hey.com) [home from the cloud](https://world.hey.com/dhh/why-we-re-leaving-the-cloud-654b47e0) without losing the advantages of modern containerization tooling.
-
-## Running MRSK from Docker
-
-MRSK is packaged up in a Docker container similarly to [rails/docked](https://github.com/rails/docked). This will allow you to run MRSK (from your application directory) without having to install any dependencies other than Docker. Add the following alias to your profile configuration to make working with the container more convenient:
-
-```bash
-alias mrsk="docker run -it --rm -v '${PWD}:/workdir' -v '${SSH_AUTH_SOCK}:/ssh-agent' -v /var/run/docker.sock:/var/run/docker.sock -e 'SSH_AUTH_SOCK=/ssh-agent' ghcr.io/mrsked/mrsk:latest"
-```
-
-Since MRSK uses SSH to establish a remote connection, it will need access to your SSH agent. The above command uses a volume mount to make it available inside the container and configures the SSH agent inside the container to make use of it.
-
-## Configuration
-
-### Using .env file to load required environment variables
-
-MRSK uses [dotenv](https://github.com/bkeepers/dotenv) to automatically load environment variables set in the `.env` file present in the application root. This file can be used to set variables like `MRSK_REGISTRY_PASSWORD` or database passwords. But for this reason you must ensure that .env files are not checked into Git or included in your Dockerfile! The format is just key-value like:
-
-```bash
-MRSK_REGISTRY_PASSWORD=pw
-DB_PASSWORD=secret123
-```
-
-### Using a generated .env file
-
-#### 1Password as a secret store
-
-If you're using a centralized secret store, like 1Password, you can create `.env.erb` as a template which looks up the secrets. Example of a .env.erb file:
-
-```erb
-<% if (session_token = `op signin --account my-one-password-account --raw`.strip) != "" %># Generated by mrsk envify
-GITHUB_TOKEN=<%= `gh config get -h github.com oauth_token`.strip %>
-MRSK_REGISTRY_PASSWORD=<%= `op read "op://Vault/Docker Hub/password" -n --session  #{session_token}` %>
-RAILS_MASTER_KEY=<%= `op read "op://Vault/My App/RAILS_MASTER_SECRET" -n --session #{session_token}` %>
-MYSQL_ROOT_PASSWORD=<%= `op read "op://Vault/My App/MYSQL_ROOT_PASSWORD" -n --session #{session_token}` %>
-<% else raise ArgumentError, "Session token missing" end %>
-```
-
-This template can safely be checked into git. Then everyone deploying the app can run `mrsk envify` when they setup the app for the first time or passwords change to get the correct `.env` file.
-
-If you need separate env variables for different destinations, you can set them with `.env.destination.erb` for the template, which will generate `.env.staging` when run with `mrsk envify -d staging`.
-
-#### Bitwarden as a secret store
-
-If you are using open source secret store like bitwarden, you can create `.env.erb` as a template which looks up the secrets.
-
-You can store `SOME_SECRET` in a secure note in bitwarden vault.
-
-```
-$ bw list items --search SOME_SECRET | jq
-? Master password: [hidden]
-
-[
-  {
-    "object": "item",
-    "id": "123123123-1232-4224-222f-234234234234",
-    "organizationId": null,
-    "folderId": null,
-    "type": 2,
-    "reprompt": 0,
-    "name": "SOME_SECRET",
-    "notes": "yyy",
-    "favorite": false,
-    "secureNote": {
-      "type": 0
-    },
-    "collectionIds": [],
-    "revisionDate": "2023-02-28T23:54:47.868Z",
-    "creationDate": "2022-11-07T03:16:05.828Z",
-    "deletedDate": null
-  }
-]
-```
-
-and extract the `id` of `SOME_SECRET` from the `json` above and use in the `erb` below.
-
-
-Example `.env.erb` file:
-
-```erb
-<% if (session_token=`bw unlock --raw`.strip) != "" %># Generated by mrsk envify
-SOME_SECRET=<%= `bw get notes 123123123-1232-4224-222f-234234234234 --session #{session_token}` %>
-<% else raise ArgumentError, "session_token token missing" end %>
-```
-
-Then everyone deploying the app can run `mrsk envify` and mrsk will generate `.env`
-
-
-### Using another registry than Docker Hub
-
-The default registry is Docker Hub, but you can change it using `registry/server`:
-
-```yaml
-registry:
-  server: registry.digitalocean.com
-  username:
-    - DOCKER_REGISTRY_TOKEN
-  password:
-    - DOCKER_REGISTRY_TOKEN
-```
-
-A reference to secret `DOCKER_REGISTRY_TOKEN` will look for `ENV["DOCKER_REGISTRY_TOKEN"]` on the machine running MRSK.
-
-### Using a different SSH user than root
-
-The default SSH user is root, but you can change it using `ssh/user`:
-
-```yaml
-ssh:
-  user: app
-```
-
-If you are using non-root user, you need to bootstrap your servers manually, before using them with MRSK. On Ubuntu, you'd do:
-
-```bash
-sudo apt update
-sudo apt upgrade -y
-sudo apt install -y docker.io curl git
-sudo usermod -a -G docker ubuntu
-```
-
-### Using a proxy SSH host
-
-If you need to connect to server through a proxy host, you can use `ssh/proxy`:
-
-```yaml
-ssh:
-  proxy: "192.168.0.1" # defaults to root as the user
-```
-
-Or with specific user:
-
-```yaml
-ssh:
-  proxy: "app@192.168.0.1"
-```
-
-Also if you need specific proxy command to connect to the server:
-
-```yaml
-ssh:
-  proxy_command: aws ssm start-session --target %h --document-name AWS-StartSSHSession --parameters 'portNumber=%p' --region=us-east-1 ## ssh via aws ssm
-```
-
-### Using env variables
-
-You can inject env variables into the app containers using `env`:
-
-```yaml
-env:
-  DATABASE_URL: mysql2://db1/hey_production/
-  REDIS_URL: redis://redis1:6379/1
-```
-
-### Using secret env variables
-
-If you have env variables that are secret, you can divide the `env` block into `clear` and `secret`:
-
-```yaml
-env:
-  clear:
-    DATABASE_URL: mysql2://db1/hey_production/
-    REDIS_URL: redis://redis1:6379/1
-  secret:
-    - DATABASE_PASSWORD
-    - REDIS_PASSWORD
-```
-
-The list of secret env variables will be expanded at run time from your local machine. So a reference to a secret `DATABASE_PASSWORD` will look for `ENV["DATABASE_PASSWORD"]` on the machine running MRSK. Just like with build secrets.
-
-If the referenced secret ENVs are missing, the configuration will be halted with a `KeyError` exception.
-
-Note: Marking an ENV as secret currently only redacts its value in the output for MRSK. The ENV is still injected in the clear into the container at runtime.
-
-### Using volumes
-
-You can add custom volumes into the app containers using `volumes`:
-
-```yaml
-volumes:
-  - "/local/path:/container/path"
-```
-
-### MRSK env variables
-
-The following env variables are set when your container runs:
-
-`MRSK_CONTAINER_NAME` : this contains the current container name and version
-
-### Using different roles for servers
-
-If your application uses separate hosts for running jobs or other roles beyond the default web running, you can specify these hosts in a dedicated role with a new entrypoint command like so:
-
-```yaml
-servers:
-  web:
-    - 192.168.0.1
-    - 192.168.0.2
-  job:
-    hosts:
-      - 192.168.0.3
-      - 192.168.0.4
-    cmd: bin/jobs
-```
-
-Note: Traefik will only by default be installed and run on the servers in the `web` role (and on all servers if no roles are defined). If you need Traefik on hosts in other roles than `web`, add `traefik: true`:
-
-```yaml
-servers:
-  web:
-    - 192.168.0.1
-    - 192.168.0.2
-  web2:
-    traefik: true
-    hosts:
-      - 192.168.0.3
-      - 192.168.0.4
-```
-
-### Using container labels
-
-You can specialize the default Traefik rules by setting labels on the containers that are being started:
-
-```yaml
-labels:
-  traefik.http.routers.hey-web.rule: Host(`app.hey.com`)
-```
-Traefik rules are in the "service-role-destination" format. The default role will be `web` if no rule is specified. If the destination is not specified, it is not included. To give an example, the above rule would become "traefik.http.routers.hey-web.rule" if it was for the "staging" destination.
-
-Note: The backticks are needed to ensure the rule is passed in correctly and not treated as command substitution by Bash!
-
-This allows you to run multiple applications on the same server sharing the same Traefik instance and port.
-See https://doc.traefik.io/traefik/routing/routers/#rule for a full list of available routing rules.
-
-The labels can also be applied on a per-role basis:
-
-```yaml
-servers:
-  web:
-    - 192.168.0.1
-    - 192.168.0.2
-  job:
-    hosts:
-      - 192.168.0.3
-      - 192.168.0.4
-    cmd: bin/jobs
-    labels:
-      my-label: "50"
-```
-
-### Using shell expansion
-
-You can use shell expansion to interpolate values from the host machine into labels and env variables with the `${}` syntax.
-Anything within the curly braces will be executed on the host machine and the result will be interpolated into the label or env variable.
-
-```yaml
-labels:
-  host-machine: "${cat /etc/hostname}"
-
-env:
-  HOST_DEPLOYMENT_DIR: "${PWD}"
-```
-
-Note: Any other occurrence of `$` will be escaped to prevent unwanted shell expansion!
-
-### Using container options
-
-You can specialize the options used to start containers using the `options` definitions:
-
-```yaml
-servers:
-  web:
-    - 192.168.0.1
-    - 192.168.0.2
-  job:
-    hosts:
-      - 192.168.0.3
-      - 192.168.0.4
-    cmd: bin/jobs
-    options:
-      cap-add: true
-      cpu-count: 4
-```
-
-That'll start the job containers with `docker run ... --cap-add --cpu-count 4 ...`.
-
-### Configuring logging
-
-You can configure the logging driver and options passed to Docker using `logging`:
-
-```yaml
-logging:
-  driver: awslogs
-  options:
-    awslogs-region: "eu-central-2"
-    awslogs-group: "my-app"
-```
-
-If nothing is configured, the default option `max-size=10m` is used for all containers. The default logging driver of Docker is `json-file`.
-
-### Using a different stop wait time
-
-On a new deploy, each old running container is gracefully shut down with a `SIGTERM`, and after a grace period of `10` seconds a `SIGKILL` is sent.
-You can configure this value via the `stop_wait_time` option:
-
-```yaml
-stop_wait_time: 30
-```
-
-### Using remote builder for native multi-arch
-
-If you're developing on ARM64 (like Apple Silicon), but you want to deploy on AMD64 (x86 64-bit), you can use multi-architecture images. By default, MRSK will setup a local buildx configuration that does this through QEMU emulation. But this can be quite slow, especially on the first build.
-
-If you want to speed up this process by using a remote AMD64 host to natively build the AMD64 part of the image, while natively building the ARM64 part locally, you can do so using builder options:
-
-```yaml
-builder:
-  local:
-    arch: arm64
-    host: unix:///Users/<%= `whoami`.strip %>/.docker/run/docker.sock
-  remote:
-    arch: amd64
-    host: ssh://root@192.168.0.1
-```
-
-Note: You must have Docker running on the remote host being used as a builder. This instance should only be shared for builds using the same registry and credentials.
-
-### Using remote builder for single-arch
-
-If you're developing on ARM64 (like Apple Silicon), want to deploy on AMD64 (x86 64-bit), but don't need to run the image locally (or on other ARM64 hosts), you can configure a remote builder that just targets AMD64. This is a bit faster than building with multi-arch, as there's nothing to build locally.
-
-```yaml
-builder:
-  remote:
-    arch: amd64
-    host: ssh://root@192.168.0.1
-```
-
-### Using native builder when multi-arch isn't needed
-
-If you're developing on the same architecture as the one you're deploying on, you can speed up the build by forgoing both multi-arch and remote building:
-
-```yaml
-builder:
-  multiarch: false
-```
-
-This is also a good option if you're running MRSK from a CI server that shares architecture with the deployment servers.
-
-### Using a different Dockerfile or context when building
-
-If you need to pass a different Dockerfile or context to the build command (e.g. if you're using a monorepo or you have
-different Dockerfiles), you can do so in the builder options:
-
-```yaml
-# Use a different Dockerfile
-builder:
-  dockerfile: Dockerfile.xyz
-
-# Set context
-builder:
-  context: ".."
-
-# Set Dockerfile and context
-builder:
-  dockerfile: "../Dockerfile.xyz"
-  context: ".."
-```
-
-### Using build secrets for new images
-
-Some images need a secret passed in during build time, like a GITHUB_TOKEN, to give access to private gem repositories. This can be done by having the secret in ENV, then referencing it in the builder configuration:
-
-```yaml
-builder:
-  secrets:
-    - GITHUB_TOKEN
-```
-
-This build secret can then be referenced in the Dockerfile:
-
-```dockerfile
-# Copy Gemfiles
-COPY Gemfile Gemfile.lock ./
-
-# Install dependencies, including private repositories via access token (then remove bundle cache with exposed GITHUB_TOKEN)
-RUN --mount=type=secret,id=GITHUB_TOKEN \
-  BUNDLE_GITHUB__COM=x-access-token:$(cat /run/secrets/GITHUB_TOKEN) \
-  bundle install && \
-  rm -rf /usr/local/bundle/cache
-```
-
-### Traefik command arguments
-
-Customize the Traefik command line using `args`:
-
-```yaml
-traefik:
-  args:
-    accesslog: true
-    accesslog.format: json
-```
-
-This starts the Traefik container with `--accesslog=true --accesslog.format=json` arguments.
-
-### Traefik host port binding
-
-Traefik binds to port 80 by default. Specify an alternative port using `host_port`:
-
-```yaml
-traefik:
-  host_port: 8080
-```
-
-### Traefik version, upgrades, and custom images
-
-MRSK runs the traefik:v2.9 image to track Traefik 2.9.x releases.
-
-To pin Traefik to a specific version or an image published to your registry,
-specify `image`:
-
-```yaml
-traefik:
-  image: traefik:v2.10.0-rc1
-```
-
-This is useful for downgrading Traefik if there's an unexpected breaking
-change in a minor version release, upgrading Traefik to test forthcoming
-releases, or running your own Traefik-derived image.
-
-MRSK has not been tested for compatibility with Traefik 3 betas. Please do!
-
-### Traefik container configuration
-
-Pass additional Docker configuration for the Traefik container using `options`:
-
-```yaml
-traefik:
-  options:
-    publish:
-      - 8080:8080
-    volumes:
-      - /tmp/example.json:/tmp/example.json
-    memory: 512m
-```
-
-This starts the Traefik container with `--volume /tmp/example.json:/tmp/example.json --publish 8080:8080 --memory 512m` arguments to `docker run`.
-
-### Traefik container labels
-
-Add labels to Traefik Docker container.
-
-```yaml
-traefik:
-  labels:
-    traefik.enable: true
-    traefik.http.routers.dashboard.rule: Host(`traefik.example.com`) && (PathPrefix(`/api`) || PathPrefix(`/dashboard`))
-    traefik.http.routers.dashboard.service: api@internal
-    traefik.http.routers.dashboard.middlewares: auth
-    traefik.http.middlewares.auth.basicauth.users: test:$2y$05$H2o72tMaO.TwY1wNQUV1K.fhjRgLHRDWohFvUZOJHBEtUXNKrqUKi # test:password
-```
-
-This labels Traefik container with `--label traefik.http.routers.dashboard.middlewares=\"auth\"` and so on.
-
-### Traefik alternate entrypoints
-
-You can configure multiple entrypoints for Traefik like so:
-
-```yaml
-service: myservice
-
-labels:
-  traefik.tcp.routers.other.rule: 'HostSNI(`*`)'
-  traefik.tcp.routers.other.entrypoints: otherentrypoint
-  traefik.tcp.services.other.loadbalancer.server.port: 9000
-  traefik.http.routers.myservice.entrypoints: web
-  traefik.http.services.myservice.loadbalancer.server.port: 8080
-
-traefik:
-  options:
-    publish:
-      - 9000:9000
-  args:
-    entrypoints.web.address: ':80'
-    entrypoints.otherentrypoint.address: ':9000'
-```
-
-### Configuring build args for new images
-
-Build arguments that aren't secret can also be configured:
-
-```yaml
-builder:
-  args:
-    RUBY_VERSION: 3.2.0
-```
-
-This build argument can then be used in the Dockerfile:
-
-```
-ARG RUBY_VERSION
-FROM ruby:$RUBY_VERSION-slim as base
-```
-
-### Using accessories for database, cache, search services
-
-You can manage your accessory services via MRSK as well. Accessories are long-lived services that your app depends on. They are not updated when you deploy.
-
-```yaml
-accessories:
-  mysql:
-    image: mysql:5.7
-    host: 1.1.1.3
-    port: 3306
-    env:
-      clear:
-        MYSQL_ROOT_HOST: '%'
-      secret:
-        - MYSQL_ROOT_PASSWORD
-    volumes:
-      - /var/lib/mysql:/var/lib/mysql
-    options:
-      cpus: 4
-      memory: "2GB"
-  redis:
-    image: redis:latest
-    roles:
-      - web
-    port: "36379:6379"
-    volumes:
-      - /var/lib/redis:/data
-  internal-example:
-    image: registry.digitalocean.com/user/otherservice:latest
-    host: 1.1.1.5
-    port: 44444
-```
-
-The hosts that the accessories will run on can be specified by hosts or roles:
-
-```yaml
-  # Single host
-  mysql:
-    host: 1.1.1.1
-  # Multiple hosts
-  redis:
-    hosts:
-      - 1.1.1.1
-      - 1.1.1.2
-  # By role
-  monitoring:
-    roles:
-      - web
-      - jobs
-```
-
-Now run `mrsk accessory start mysql` to start the MySQL server on 1.1.1.3. See `mrsk accessory` for all the commands possible.
-
-Accessory images must be public or tagged in your private registry.
-
-### Using Cron
-
-You can use a specific container to run your Cron jobs:
-
-```yaml
-servers:
-  cron:
-    hosts:
-      - 192.168.0.1
-    cmd:
-      bash -c "cat config/crontab | crontab - && cron -f"
-```
-
-This assumes the Cron settings are stored in `config/crontab`.
-
-### Using audit broadcasts
-
-If you'd like to broadcast audits of deploys, rollbacks, etc to a chatroom or elsewhere, you can configure the `audit_broadcast_cmd` setting with the path to a bin file that will be passed the audit line as the first argument:
-
-```yaml
-audit_broadcast_cmd:
-  bin/audit_broadcast
-```
-
-The broadcast command could look something like:
-
-```bash
-#!/usr/bin/env bash
-curl -q -d content="[My App] ${1}" https://3.basecamp.com/XXXXX/integrations/XXXXX/buckets/XXXXX/chats/XXXXX/lines
-```
-
-That'll post a line like follows to a preconfigured chatbot in Basecamp:
-
-```
-[My App] [dhh] Rolled back to version d264c4e92470ad1bd18590f04466787262f605de
-```
-
-### Healthcheck
-
-MRSK uses Docker healtchecks to check the health of your application during deployment. Traefik uses this same healthcheck status to determine when a container is ready to receive traffic.
-
-The healthcheck defaults to testing the HTTP response to the path `/up` on port 3000, up to 7 times. You can tailor this behaviour with the `healthcheck` setting:
-
-```yaml
-healthcheck:
-  path: /healthz
-  port: 4000
-  max_attempts: 7
-```
-
-This will ensure your application is configured with a traefik label for the healthcheck against `/healthz` and that the pre-deploy healthcheck that MRSK performs is done against the same path on port 4000.
-
-You can also specify a custom healthcheck command, which is useful for non-HTTP services:
-
-```yaml
-healthcheck:
-  cmd: /bin/check_health
-```
-
-The top-level healthcheck configuration applies to all services that use
-Traefik, by default. You can also specialize the configuration at the role
-level:
-
-```yaml
-servers:
-  job:
-    hosts: ...
-    cmd: bin/jobs
-    healthcheck:
-      cmd: bin/check
-```
-
-The healthcheck allows for an optional `max_attempts` setting, which will attempt the healthcheck up to the specified number of times before failing the deploy. This is useful for applications that take a while to start up. The default is 7.
-
-Note that the HTTP health checks assume that the `curl` command is avilable inside the container. If that's not the case, use the healthcheck's `cmd` option to specify an alternative check that the container supports.
-
-## Commands
-
-### Running commands on servers
-
-You can execute one-off commands on the servers:
-
-```bash
-# Runs command on all servers
-mrsk app exec 'ruby -v'
-App Host: 192.168.0.1
-ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [x86_64-linux]
-
-App Host: 192.168.0.2
-ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [x86_64-linux]
-
-# Runs command on primary server
-mrsk app exec --primary 'cat .ruby-version'
-App Host: 192.168.0.1
-3.1.3
-
-# Runs Rails command on all servers
-mrsk app exec 'bin/rails about'
-App Host: 192.168.0.1
-About your application's environment
-Rails version             7.1.0.alpha
-Ruby version              ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [x86_64-linux]
-RubyGems version          3.3.26
-Rack version              2.2.5
-Middleware                ActionDispatch::HostAuthorization, Rack::Sendfile, ActionDispatch::Static, ActionDispatch::Executor, Rack::Runtime, Rack::MethodOverride, ActionDispatch::RequestId, ActionDispatch::RemoteIp, Rails::Rack::Logger, ActionDispatch::ShowExceptions, ActionDispatch::DebugExceptions, ActionDispatch::Callbacks, ActionDispatch::Cookies, ActionDispatch::Session::CookieStore, ActionDispatch::Flash, ActionDispatch::ContentSecurityPolicy::Middleware, ActionDispatch::PermissionsPolicy::Middleware, Rack::Head, Rack::ConditionalGet, Rack::ETag, Rack::TempfileReaper
-Application root          /rails
-Environment               production
-Database adapter          sqlite3
-Database schema version   20221231233303
-
-App Host: 192.168.0.2
-About your application's environment
-Rails version             7.1.0.alpha
-Ruby version              ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [x86_64-linux]
-RubyGems version          3.3.26
-Rack version              2.2.5
-Middleware                ActionDispatch::HostAuthorization, Rack::Sendfile, ActionDispatch::Static, ActionDispatch::Executor, Rack::Runtime, Rack::MethodOverride, ActionDispatch::RequestId, ActionDispatch::RemoteIp, Rails::Rack::Logger, ActionDispatch::ShowExceptions, ActionDispatch::DebugExceptions, ActionDispatch::Callbacks, ActionDispatch::Cookies, ActionDispatch::Session::CookieStore, ActionDispatch::Flash, ActionDispatch::ContentSecurityPolicy::Middleware, ActionDispatch::PermissionsPolicy::Middleware, Rack::Head, Rack::ConditionalGet, Rack::ETag, Rack::TempfileReaper
-Application root          /rails
-Environment               production
-Database adapter          sqlite3
-Database schema version   20221231233303
-
-# Run Rails runner on primary server
-mrsk app exec -p 'bin/rails runner "puts Rails.application.config.time_zone"'
-UTC
-```
-
-### Running interactive commands over SSH
-
-You can run interactive commands, like a Rails console or a bash session, on a server (default is primary, use `--hosts` to connect to another):
-
-```bash
-# Starts a bash session in a new container made from the most recent app image
-mrsk app exec -i bash
-
-# Starts a bash session in the currently running container for the app
-mrsk app exec -i --reuse bash
-
-# Starts a Rails console in a new container made from the most recent app image
-mrsk app exec -i 'bin/rails console'
-```
-
-
-### Running details to show state of containers
-
-You can see the state of your servers by running `mrsk details`:
-
-```
-Traefik Host: 192.168.0.1
-CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS          PORTS                               NAMES
-6195b2a28c81   traefik   "/entrypoint.sh --pr…"   30 minutes ago   Up 19 minutes   0.0.0.0:80->80/tcp, :::80->80/tcp   traefik
-
-Traefik Host: 192.168.0.2
-CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS          PORTS                               NAMES
-de14a335d152   traefik   "/entrypoint.sh --pr…"   30 minutes ago   Up 19 minutes   0.0.0.0:80->80/tcp, :::80->80/tcp   traefik
-
-App Host: 192.168.0.1
-CONTAINER ID   IMAGE                                                                         COMMAND                  CREATED          STATUS          PORTS      NAMES
-badb1aa51db3   registry.digitalocean.com/user/app:6ef8a6a84c525b123c5245345a8483f86d05a123   "/rails/bin/docker-e…"   13 minutes ago   Up 13 minutes   3000/tcp   chat-6ef8a6a84c525b123c5245345a8483f86d05a123
-
-App Host: 192.168.0.2
-CONTAINER ID   IMAGE                                                                         COMMAND                  CREATED          STATUS          PORTS      NAMES
-1d3c91ed1f55   registry.digitalocean.com/user/app:6ef8a6a84c525b123c5245345a8483f86d05a123   "/rails/bin/docker-e…"   13 minutes ago   Up 13 minutes   3000/tcp   chat-6ef8a6a84c525b123c5245345a8483f86d05a123
-```
-
-You can also see just info for app containers with `mrsk app details` or just for Traefik with `mrsk traefik details`.
-
-### Running rollback to fix a bad deploy
-
-If you've discovered a bad deploy, you can quickly rollback by reactivating the old, paused container image. You can see what old containers are available for rollback by running `mrsk app containers`. It'll give you a presentation similar to `mrsk app details`, but include all the old containers as well. Showing something like this:
-
-```
-App Host: 192.168.0.1
-CONTAINER ID   IMAGE                                                                         COMMAND                  CREATED          STATUS                      PORTS      NAMES
-1d3c91ed1f51   registry.digitalocean.com/user/app:6ef8a6a84c525b123c5245345a8483f86d05a123   "/rails/bin/docker-e…"   19 minutes ago   Up 19 minutes               3000/tcp   chat-6ef8a6a84c525b123c5245345a8483f86d05a123
-539f26b28369   registry.digitalocean.com/user/app:e5d9d7c2b898289dfbc5f7f1334140d984eedae4   "/rails/bin/docker-e…"   31 minutes ago   Exited (1) 27 minutes ago              chat-e5d9d7c2b898289dfbc5f7f1334140d984eedae4
-
-App Host: 192.168.0.2
-CONTAINER ID   IMAGE                                                                         COMMAND                  CREATED          STATUS                      PORTS      NAMES
-badb1aa51db4   registry.digitalocean.com/user/app:6ef8a6a84c525b123c5245345a8483f86d05a123   "/rails/bin/docker-e…"   19 minutes ago   Up 19 minutes               3000/tcp   chat-6ef8a6a84c525b123c5245345a8483f86d05a123
-6f170d1172ae   registry.digitalocean.com/user/app:e5d9d7c2b898289dfbc5f7f1334140d984eedae4   "/rails/bin/docker-e…"   31 minutes ago   Exited (1) 27 minutes ago              chat-e5d9d7c2b898289dfbc5f7f1334140d984eedae4
-```
-
-From the example above, we can see that `e5d9d7c2b898289dfbc5f7f1334140d984eedae4` was the last version, so it's available as a rollback target. We can perform this rollback by running `mrsk rollback e5d9d7c2b898289dfbc5f7f1334140d984eedae4`. That'll stop `6ef8a6a84c525b123c5245345a8483f86d05a123` and then start `e5d9d7c2b898289dfbc5f7f1334140d984eedae4`. Because the old container is still available, this is very quick. Nothing to download from the registry.
-
-Note that by default old containers are pruned after 3 days when you run `mrsk deploy`.
-
-### Running removal to clean up servers
-
-If you wish to remove the entire application, including Traefik, containers, images, and registry session, you can run `mrsk remove`. This will leave the servers clean.
-
-## Locking
-
-Commands that are unsafe to run concurrently will take a deploy lock while they run. The lock is the `mrsk_lock` directory on the primary server.
-
-You can check the lock status with:
-
-```
-mrsk lock status
-
-Locked by: AN Other at 2023-03-24 09:49:03 UTC
-Version: 77f45c0686811c68989d6576748475a60bf53fc2
-Message: Automatic deploy lock
-```
-
-You can also manually acquire and release the lock
-
-```
-mrsk lock acquire -m "Doing maintanence"
-```
-
-```
-mrsk lock release
-```
-
-## Rolling deployments
-
-When deploying to large numbers of hosts, you might prefer not to restart your services on every host at the same time.
-
-MRSK's default is to boot new containers on all hosts in parallel. But you can control this by configuring `boot/limit` and `boot/wait` as options:
-
-```yaml
-service: myservice
-
-boot:
-  limit: 10 # Can also specify as a percentage of total hosts, such as "25%"
-  wait: 2
-```
-
-When `limit` is specified, containers will be booted on, at most, `limit` hosts at once. MRSK will pause for `wait` seconds between batches.
-
-These settings only apply when booting containers (using `mrsk deploy`, or `mrsk app boot`). For other commands, MRSK continues to run commands in parallel across all hosts.
-
-## Stage of development
-
-This is beta software. Commands may still move around. But we're live in production at [37signals](https://37signals.com).
 
 ## License
 
-MRSK is released under the [MIT License](https://opensource.org/licenses/MIT).
+Kamal is released under the [MIT License](https://opensource.org/licenses/MIT).

bin/kamal

@@ -3,12 +3,12 @@
 # Prevent failures from being reported twice.
 Thread.report_on_exception = false
 
-require "mrsk"
+require "kamal"
 
 begin
-  Mrsk::Cli::Main.start(ARGV)
+  Kamal::Cli::Main.start(ARGV)
 rescue SSHKit::Runner::ExecuteError => e
-  puts "  \e[31mERROR (#{e.cause.class}): #{e.cause.message}\e[0m"
+  puts "  \e[31mERROR (#{e.cause.class}): #{e.message}\e[0m"
   puts e.cause.backtrace if ENV["VERBOSE"]
   exit 1
 rescue => e

bin/release

@@ -2,13 +2,13 @@
 
 VERSION=$1
 
-printf "module Mrsk\n  VERSION = \"$VERSION\"\nend\n" > ./lib/mrsk/version.rb
+printf "module Kamal\n  VERSION = \"$VERSION\"\nend\n" > ./lib/kamal/version.rb
 bundle
-git add Gemfile.lock lib/mrsk/version.rb
+git add Gemfile.lock lib/kamal/version.rb
 git commit -m "Bump version for $VERSION"
 git push
 git tag v$VERSION
 git push --tags
-gem build mrsk.gemspec
+gem build kamal.gemspec
-gem push "mrsk-$VERSION.gem" --host https://rubygems.org
+gem push "kamal-$VERSION.gem" --host https://rubygems.org
-rm "mrsk-$VERSION.gem"
+rm "kamal-$VERSION.gem"

kamal.gemspec

@@ -1,16 +1,15 @@
-require_relative "lib/mrsk/version"
+require_relative "lib/kamal/version"
 
 Gem::Specification.new do |spec|
-  spec.name        = "mrsk"
+  spec.name        = "kamal"
-  spec.version     = Mrsk::VERSION
+  spec.version     = Kamal::VERSION
   spec.authors     = [ "David Heinemeier Hansson" ]
   spec.email       = "dhh@hey.com"
-  spec.homepage    = "https://github.com/rails/mrsk"
+  spec.homepage    = "https://github.com/basecamp/kamal"
   spec.summary     = "Deploy web apps in containers to servers running Docker with zero downtime."
   spec.license     = "MIT"
-
   spec.files = Dir["lib/**/*", "MIT-LICENSE", "README.md"]
-  spec.executables = %w[ mrsk ]
+  spec.executables = %w[ kamal ]
 
   spec.add_dependency "activesupport", ">= 7.0"
   spec.add_dependency "sshkit", "~> 1.21"
@@ -20,6 +19,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "zeitwerk", "~> 2.5"
   spec.add_dependency "ed25519", "~> 1.2"
   spec.add_dependency "bcrypt_pbkdf", "~> 1.0"
+  spec.add_dependency "concurrent-ruby", "~> 1.2"
 
   spec.add_development_dependency "debug"
   spec.add_development_dependency "mocha"

lib/kamal.rb

@@ -1,10 +1,10 @@
-module Mrsk
+module Kamal
 end
 
 require "active_support"
 require "zeitwerk"
 
 loader = Zeitwerk::Loader.for_gem
-loader.ignore("#{__dir__}/mrsk/sshkit_with_ext.rb")
+loader.ignore("#{__dir__}/kamal/sshkit_with_ext.rb")
 loader.setup
 loader.eager_load # We need all commands loaded.

lib/kamal/cli.rb

@@ -1,6 +1,7 @@
-module Mrsk::Cli
+module Kamal::Cli
   class LockError < StandardError; end
+  class HookError < StandardError; end
 end
 
 # SSHKit uses instance eval, so we need a global const for ergonomics
-MRSK = Mrsk::Commander.new
+KAMAL = Kamal::Commander.new

lib/kamal/cli/accessory.rb

@@ -1,21 +1,19 @@
-class Mrsk::Cli::Accessory < Mrsk::Cli::Base
+class Kamal::Cli::Accessory < Kamal::Cli::Base
   desc "boot [NAME]", "Boot new accessory service on host (use NAME=all to boot all accessories)"
-  def boot(name)
+  def boot(name, login: true)
-    with_lock do
+    mutating do
       if name == "all"
-        MRSK.accessory_names.each { |accessory_name| boot(accessory_name) }
+        KAMAL.accessory_names.each { |accessory_name| boot(accessory_name) }
       else
         with_accessory(name) do |accessory|
           directories(name)
           upload(name)
 
           on(accessory.hosts) do
-            execute *MRSK.registry.login
+            execute *KAMAL.registry.login if login
-            execute *MRSK.auditor.record("Booted #{name} accessory"), verbosity: :debug
+            execute *KAMAL.auditor.record("Booted #{name} accessory"), verbosity: :debug
             execute *accessory.run
           end
-
-          audit_broadcast "Booted accessory #{name}" unless options[:skip_broadcast]
         end
       end
     end
@@ -23,7 +21,7 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   desc "upload [NAME]", "Upload accessory files to host", hide: true
   def upload(name)
-    with_lock do
+    mutating do
       with_accessory(name) do |accessory|
         on(accessory.hosts) do
           accessory.files.each do |(local, remote)|
@@ -40,7 +38,7 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   desc "directories [NAME]", "Create accessory directories on host", hide: true
   def directories(name)
-    with_lock do
+    mutating do
       with_accessory(name) do |accessory|
         on(accessory.hosts) do
           accessory.directories.keys.each do |host_path|
@@ -53,21 +51,25 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   desc "reboot [NAME]", "Reboot existing accessory on host (stop container, remove container, start new container)"
   def reboot(name)
-    with_lock do
+    mutating do
       with_accessory(name) do |accessory|
+        on(accessory.hosts) do
+          execute *KAMAL.registry.login
+        end
+
         stop(name)
         remove_container(name)
-        boot(name)
+        boot(name, login: false)
       end
     end
   end
 
   desc "start [NAME]", "Start existing accessory container on host"
   def start(name)
-    with_lock do
+    mutating do
       with_accessory(name) do |accessory|
         on(accessory.hosts) do
-          execute *MRSK.auditor.record("Started #{name} accessory"), verbosity: :debug
+          execute *KAMAL.auditor.record("Started #{name} accessory"), verbosity: :debug
           execute *accessory.start
         end
       end
@@ -76,10 +78,10 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   desc "stop [NAME]", "Stop existing accessory container on host"
   def stop(name)
-    with_lock do
+    mutating do
       with_accessory(name) do |accessory|
         on(accessory.hosts) do
-          execute *MRSK.auditor.record("Stopped #{name} accessory"), verbosity: :debug
+          execute *KAMAL.auditor.record("Stopped #{name} accessory"), verbosity: :debug
           execute *accessory.stop, raise_on_non_zero_exit: false
         end
       end
@@ -88,7 +90,7 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   desc "restart [NAME]", "Restart existing accessory container on host"
   def restart(name)
-    with_lock do
+    mutating do
       with_accessory(name) do
         stop(name)
         start(name)
@@ -99,7 +101,7 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
   desc "details [NAME]", "Show details about accessory on host (use NAME=all to show all accessories)"
   def details(name)
     if name == "all"
-      MRSK.accessory_names.each { |accessory_name| details(accessory_name) }
+      KAMAL.accessory_names.each { |accessory_name| details(accessory_name) }
     else
       with_accessory(name) do |accessory|
         on(accessory.hosts) { puts capture_with_info(*accessory.info) }
@@ -124,14 +126,14 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
       when options[:reuse]
         say "Launching command from existing container...", :magenta
         on(accessory.hosts) do
-          execute *MRSK.auditor.record("Executed cmd '#{cmd}' on #{name} accessory"), verbosity: :debug
+          execute *KAMAL.auditor.record("Executed cmd '#{cmd}' on #{name} accessory"), verbosity: :debug
           capture_with_info(*accessory.execute_in_existing_container(cmd))
         end
 
       else
         say "Launching command from new container...", :magenta
         on(accessory.hosts) do
-          execute *MRSK.auditor.record("Executed cmd '#{cmd}' on #{name} accessory"), verbosity: :debug
+          execute *KAMAL.auditor.record("Executed cmd '#{cmd}' on #{name} accessory"), verbosity: :debug
           capture_with_info(*accessory.execute_in_new_container(cmd))
         end
       end
@@ -167,9 +169,9 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
   desc "remove [NAME]", "Remove accessory container, image and data directory from host (use NAME=all to remove all accessories)"
   option :confirmed, aliases: "-y", type: :boolean, default: false, desc: "Proceed without confirmation question"
   def remove(name)
-    with_lock do
+    mutating do
       if name == "all"
-        MRSK.accessory_names.each { |accessory_name| remove(accessory_name) }
+        KAMAL.accessory_names.each { |accessory_name| remove(accessory_name) }
       else
         if options[:confirmed] || ask("This will remove all containers, images and data directories for #{name}. Are you sure?", limited_to: %w( y N ), default: "N") == "y"
           with_accessory(name) do
@@ -185,10 +187,10 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   desc "remove_container [NAME]", "Remove accessory container from host", hide: true
   def remove_container(name)
-    with_lock do
+    mutating do
       with_accessory(name) do |accessory|
         on(accessory.hosts) do
-          execute *MRSK.auditor.record("Remove #{name} accessory container"), verbosity: :debug
+          execute *KAMAL.auditor.record("Remove #{name} accessory container"), verbosity: :debug
           execute *accessory.remove_container
         end
       end
@@ -197,10 +199,10 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   desc "remove_image [NAME]", "Remove accessory image from host", hide: true
   def remove_image(name)
-    with_lock do
+    mutating do
       with_accessory(name) do |accessory|
         on(accessory.hosts) do
-          execute *MRSK.auditor.record("Removed #{name} accessory image"), verbosity: :debug
+          execute *KAMAL.auditor.record("Removed #{name} accessory image"), verbosity: :debug
           execute *accessory.remove_image
         end
       end
@@ -209,7 +211,7 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   desc "remove_service_directory [NAME]", "Remove accessory directory used for uploaded files and data directories from host", hide: true
   def remove_service_directory(name)
-    with_lock do
+    mutating do
       with_accessory(name) do |accessory|
         on(accessory.hosts) do
           execute *accessory.remove_service_directory
@@ -220,7 +222,7 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
 
   private
     def with_accessory(name)
-      if accessory = MRSK.accessory(name)
+      if accessory = KAMAL.accessory(name)
         yield accessory
       else
         error_on_missing_accessory(name)
@@ -228,7 +230,7 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
     end
 
     def error_on_missing_accessory(name)
-      options = MRSK.accessory_names.presence
+      options = KAMAL.accessory_names.presence
 
       error \
         "No accessory by the name of '#{name}'" +

lib/kamal/cli/app.rb

@@ -0,0 +1,296 @@
+class Kamal::Cli::App < Kamal::Cli::Base
+  desc "boot", "Boot app on servers (or reboot app if already running)"
+  def boot
+    mutating do
+      hold_lock_on_error do
+        say "Get most recent version available as an image...", :magenta unless options[:version]
+        using_version(version_or_latest) do |version|
+          say "Start container with version #{version} using a #{KAMAL.config.readiness_delay}s readiness delay (or reboot if already running)...", :magenta
+
+          on(KAMAL.hosts) do
+            execute *KAMAL.auditor.record("Tagging #{KAMAL.config.absolute_image} as the latest image"), verbosity: :debug
+            execute *KAMAL.app.tag_current_as_latest
+          end
+
+          on(KAMAL.hosts, **KAMAL.boot_strategy) do |host|
+            roles = KAMAL.roles_on(host)
+
+            roles.each do |role|
+              app = KAMAL.app(role: role)
+              auditor = KAMAL.auditor(role: role)
+
+              if capture_with_info(*app.container_id_for_version(version, only_running: true), raise_on_non_zero_exit: false).present?
+                tmp_version = "#{version}_replaced_#{SecureRandom.hex(8)}"
+                info "Renaming container #{version} to #{tmp_version} as already deployed on #{host}"
+                execute *auditor.record("Renaming container #{version} to #{tmp_version}"), verbosity: :debug
+                execute *app.rename_container(version: version, new_version: tmp_version)
+              end
+
+              execute *auditor.record("Booted app version #{version}"), verbosity: :debug
+
+              old_version = capture_with_info(*app.current_running_version, raise_on_non_zero_exit: false).strip
+              execute *app.start_or_run(hostname: "#{host}-#{SecureRandom.hex(6)}")
+
+              Kamal::Utils::HealthcheckPoller.wait_for_healthy(pause_after_ready: true) { capture_with_info(*app.status(version: version)) }
+
+              execute *app.stop(version: old_version), raise_on_non_zero_exit: false if old_version.present?
+            end
+          end
+        end
+      end
+    end
+  end
+
+  desc "start", "Start existing app container on servers"
+  def start
+    mutating do
+      on(KAMAL.hosts) do |host|
+        roles = KAMAL.roles_on(host)
+
+        roles.each do |role|
+          execute *KAMAL.auditor.record("Started app version #{KAMAL.config.version}"), verbosity: :debug
+          execute *KAMAL.app(role: role).start, raise_on_non_zero_exit: false
+        end
+      end
+    end
+  end
+
+  desc "stop", "Stop app container on servers"
+  def stop
+    mutating do
+      on(KAMAL.hosts) do |host|
+        roles = KAMAL.roles_on(host)
+
+        roles.each do |role|
+          execute *KAMAL.auditor.record("Stopped app", role: role), verbosity: :debug
+          execute *KAMAL.app(role: role).stop, raise_on_non_zero_exit: false
+        end
+      end
+    end
+  end
+
+  # FIXME: Drop in favor of just containers?
+  desc "details", "Show details about app containers"
+  def details
+    on(KAMAL.hosts) do |host|
+      roles = KAMAL.roles_on(host)
+
+      roles.each do |role|
+        puts_by_host host, capture_with_info(*KAMAL.app(role: role).info)
+      end
+    end
+  end
+
+  desc "exec [CMD]", "Execute a custom command on servers (use --help to show options)"
+  option :interactive, aliases: "-i", type: :boolean, default: false, desc: "Execute command over ssh for an interactive shell (use for console/bash)"
+  option :reuse, type: :boolean, default: false, desc: "Reuse currently running container instead of starting a new one"
+  def exec(cmd)
+    case
+    when options[:interactive] && options[:reuse]
+      say "Get current version of running container...", :magenta unless options[:version]
+      using_version(options[:version] || current_running_version) do |version|
+        say "Launching interactive command with version #{version} via SSH from existing container on #{KAMAL.primary_host}...", :magenta
+        run_locally { exec KAMAL.app(role: "web").execute_in_existing_container_over_ssh(cmd, host: KAMAL.primary_host) }
+      end
+
+    when options[:interactive]
+      say "Get most recent version available as an image...", :magenta unless options[:version]
+      using_version(version_or_latest) do |version|
+        say "Launching interactive command with version #{version} via SSH from new container on #{KAMAL.primary_host}...", :magenta
+        run_locally { exec KAMAL.app(role: KAMAL.roles_on(KAMAL.primary_host).first).execute_in_new_container_over_ssh(cmd, host: KAMAL.primary_host) }
+      end
+
+    when options[:reuse]
+      say "Get current version of running container...", :magenta unless options[:version]
+      using_version(options[:version] || current_running_version) do |version|
+        say "Launching command with version #{version} from existing container...", :magenta
+
+        on(KAMAL.hosts) do |host|
+          roles = KAMAL.roles_on(host)
+
+          roles.each do |role|
+            execute *KAMAL.auditor.record("Executed cmd '#{cmd}' on app version #{version}", role: role), verbosity: :debug
+            puts_by_host host, capture_with_info(*KAMAL.app(role: role).execute_in_existing_container(cmd))
+          end
+        end
+      end
+
+    else
+      say "Get most recent version available as an image...", :magenta unless options[:version]
+      using_version(version_or_latest) do |version|
+        say "Launching command with version #{version} from new container...", :magenta
+        on(KAMAL.hosts) do |host|
+          execute *KAMAL.auditor.record("Executed cmd '#{cmd}' on app version #{version}"), verbosity: :debug
+          puts_by_host host, capture_with_info(*KAMAL.app.execute_in_new_container(cmd))
+        end
+      end
+    end
+  end
+
+  desc "containers", "Show app containers on servers"
+  def containers
+    on(KAMAL.hosts) { |host| puts_by_host host, capture_with_info(*KAMAL.app.list_containers) }
+  end
+
+  desc "stale_containers", "Detect app stale containers"
+  option :stop, aliases: "-s", type: :boolean, default: false, desc: "Stop the stale containers found"
+  def stale_containers
+    mutating do
+      stop = options[:stop]
+
+      cli = self
+
+      on(KAMAL.hosts) do |host|
+        roles = KAMAL.roles_on(host)
+
+        roles.each do |role|
+          cli.send(:stale_versions, host: host, role: role).each do |version|
+            if stop
+              puts_by_host host, "Stopping stale container for role #{role} with version #{version}"
+              execute *KAMAL.app(role: role).stop(version: version), raise_on_non_zero_exit: false
+            else
+              puts_by_host host,  "Detected stale container for role #{role} with version #{version} (use `kamal app stale_containers --stop` to stop)"
+            end
+          end
+        end
+      end
+    end
+  end
+
+  desc "images", "Show app images on servers"
+  def images
+    on(KAMAL.hosts) { |host| puts_by_host host, capture_with_info(*KAMAL.app.list_images) }
+  end
+
+  desc "logs", "Show log lines from app on servers (use --help to show options)"
+  option :since, aliases: "-s", desc: "Show lines since timestamp (e.g. 2013-01-02T13:23:37Z) or relative (e.g. 42m for 42 minutes)"
+  option :lines, type: :numeric, aliases: "-n", desc: "Number of lines to show from each server"
+  option :grep, aliases: "-g", desc: "Show lines with grep match only (use this to fetch specific requests by id)"
+  option :follow, aliases: "-f", desc: "Follow log on primary server (or specific host set by --hosts)"
+  def logs
+    # FIXME: Catch when app containers aren't running
+
+    grep = options[:grep]
+
+    if options[:follow]
+      run_locally do
+        info "Following logs on #{KAMAL.primary_host}..."
+
+        KAMAL.specific_roles ||= ["web"]
+        role = KAMAL.roles_on(KAMAL.primary_host).first
+
+        info KAMAL.app(role: role).follow_logs(host: KAMAL.primary_host, grep: grep)
+        exec KAMAL.app(role: role).follow_logs(host: KAMAL.primary_host, grep: grep)
+      end
+    else
+      since = options[:since]
+      lines = options[:lines].presence || ((since || grep) ? nil : 100) # Default to 100 lines if since or grep isn't set
+
+      on(KAMAL.hosts) do |host|
+        roles = KAMAL.roles_on(host)
+
+        roles.each do |role|
+          begin
+            puts_by_host host, capture_with_info(*KAMAL.app(role: role).logs(since: since, lines: lines, grep: grep))
+          rescue SSHKit::Command::Failed
+            puts_by_host host, "Nothing found"
+          end
+        end
+      end
+    end
+  end
+
+  desc "remove", "Remove app containers and images from servers"
+  def remove
+    mutating do
+      stop
+      remove_containers
+      remove_images
+    end
+  end
+
+  desc "remove_container [VERSION]", "Remove app container with given version from servers", hide: true
+  def remove_container(version)
+    mutating do
+      on(KAMAL.hosts) do |host|
+        roles = KAMAL.roles_on(host)
+
+        roles.each do |role|
+          execute *KAMAL.auditor.record("Removed app container with version #{version}", role: role), verbosity: :debug
+          execute *KAMAL.app(role: role).remove_container(version: version)
+        end
+      end
+    end
+  end
+
+  desc "remove_containers", "Remove all app containers from servers", hide: true
+  def remove_containers
+    mutating do
+      on(KAMAL.hosts) do |host|
+        roles = KAMAL.roles_on(host)
+
+        roles.each do |role|
+          execute *KAMAL.auditor.record("Removed all app containers", role: role), verbosity: :debug
+          execute *KAMAL.app(role: role).remove_containers
+        end
+      end
+    end
+  end
+
+  desc "remove_images", "Remove all app images from servers", hide: true
+  def remove_images
+    mutating do
+      on(KAMAL.hosts) do
+        execute *KAMAL.auditor.record("Removed all app images"), verbosity: :debug
+        execute *KAMAL.app.remove_images
+      end
+    end
+  end
+
+  desc "version", "Show app version currently running on servers"
+  def version
+    on(KAMAL.hosts) do |host|
+      role = KAMAL.roles_on(host).first
+      puts_by_host host, capture_with_info(*KAMAL.app(role: role).current_running_version).strip
+    end
+  end
+
+  private
+    def using_version(new_version)
+      if new_version
+        begin
+          old_version = KAMAL.config.version
+          KAMAL.config.version = new_version
+          yield new_version
+        ensure
+          KAMAL.config.version = old_version
+        end
+      else
+        yield KAMAL.config.version
+      end
+    end
+
+    def current_running_version(host: KAMAL.primary_host)
+      version = nil
+      on(host) do
+        role = KAMAL.roles_on(host).first
+        version = capture_with_info(*KAMAL.app(role: role).current_running_version).strip
+      end
+      version.presence
+    end
+
+    def stale_versions(host:, role:)
+      versions = nil
+      on(host) do
+        versions = \
+          capture_with_info(*KAMAL.app(role: role).list_versions, raise_on_non_zero_exit: false)
+          .split("\n")
+          .drop(1)
+      end
+      versions
+    end
+
+    def version_or_latest
+      options[:version] || "latest"
+    end
+end

lib/kamal/cli/base.rb

@@ -1,8 +1,8 @@
 require "thor"
 require "dotenv"
-require "mrsk/sshkit_with_ext"
+require "kamal/sshkit_with_ext"
 
-module Mrsk::Cli
+module Kamal::Cli
   class Base < Thor
     include SSHKit::DSL
 
@@ -20,7 +20,7 @@ module Mrsk::Cli
     class_option :config_file, aliases: "-c", default: "config/deploy.yml", desc: "Path to config file"
     class_option :destination, aliases: "-d", desc: "Specify destination to be used for config file (staging -> deploy.staging.yml)"
 
-    class_option :skip_broadcast, aliases: "-B", type: :boolean, default: false, desc: "Skip audit broadcasts"
+    class_option :skip_hooks, aliases: "-H", type: :boolean, default: false, desc: "Don't run hooks"
 
     def initialize(*)
       super
@@ -42,7 +42,7 @@ module Mrsk::Cli
       end
 
       def initialize_commander(options)
-        MRSK.tap do |commander|
+        KAMAL.tap do |commander|
           if options[:verbose]
             ENV["VERBOSE"] = "1" # For backtraces via cli/start
             commander.verbosity = :debug
@@ -72,61 +72,100 @@ module Mrsk::Cli
         puts "  Finished all in #{sprintf("%.1f seconds", runtime)}"
       end
 
-      def audit_broadcast(line)
+      def mutating
-        run_locally { execute *MRSK.auditor.broadcast(line), verbosity: :debug }
+        return yield if KAMAL.holding_lock?
-      end
 
-      def with_lock
+        KAMAL.config.ensure_env_available
-        if MRSK.holding_lock?
+
+        run_hook "pre-connect"
+
+        acquire_lock
+
+        begin
           yield
-        else
+        rescue
-          acquire_lock
+          if KAMAL.hold_lock_on_error?
-
+            error "  \e[31mDeploy lock was not released\e[0m"
-          begin
+          else
-            yield
+            release_lock
-          rescue
-            if MRSK.hold_lock_on_error?
-              error "  \e[31mDeploy lock was not released\e[0m"
-            else
-              release_lock
-            end
-
-            raise
           end
 
-          release_lock
+          raise
         end
+
+        release_lock
       end
 
       def acquire_lock
-        say "Acquiring the deploy lock"
+        raise_if_locked do
-        on(MRSK.primary_host) { execute *MRSK.lock.acquire("Automatic deploy lock", MRSK.config.version) }
+          say "Acquiring the deploy lock...", :magenta
+          on(KAMAL.primary_host) { execute *KAMAL.lock.acquire("Automatic deploy lock", KAMAL.config.version), verbosity: :debug }
+        end
 
-        MRSK.holding_lock = true
+        KAMAL.holding_lock = true
+      end
+
+      def release_lock
+        say "Releasing the deploy lock...", :magenta
+        on(KAMAL.primary_host) { execute *KAMAL.lock.release, verbosity: :debug }
+
+        KAMAL.holding_lock = false
+      end
+
+      def raise_if_locked
+        yield
       rescue SSHKit::Runner::ExecuteError => e
         if e.message =~ /cannot create directory/
-          on(MRSK.primary_host) { execute *MRSK.lock.status }
+          on(KAMAL.primary_host) { puts capture_with_debug(*KAMAL.lock.status) }
           raise LockError, "Deploy lock found"
         else
           raise e
         end
       end
 
-      def release_lock
-        say "Releasing the deploy lock"
-        on(MRSK.primary_host) { execute *MRSK.lock.release }
-
-        MRSK.holding_lock = false
-      end
-
       def hold_lock_on_error
-        if MRSK.hold_lock_on_error?
+        if KAMAL.hold_lock_on_error?
           yield
         else
-          MRSK.hold_lock_on_error = true
+          KAMAL.hold_lock_on_error = true
           yield
-          MRSK.hold_lock_on_error = false
+          KAMAL.hold_lock_on_error = false
         end
       end
-  end
+
+      def run_hook(hook, **extra_details)
+        if !options[:skip_hooks] && KAMAL.hook.hook_exists?(hook)
+          details = { hosts: KAMAL.hosts.join(","), command: command, subcommand: subcommand }
+
+          say "Running the #{hook} hook...", :magenta
+          run_locally do
+            KAMAL.with_verbosity(:debug) { execute *KAMAL.hook.run(hook, **details, **extra_details) }
+          rescue SSHKit::Command::Failed
+            raise HookError.new("Hook `#{hook}` failed")
+          end
+        end
+      end
+
+      def command
+        @kamal_command ||= begin
+          invocation_class, invocation_commands = *first_invocation
+          if invocation_class == Kamal::Cli::Main
+            invocation_commands[0]
+          else
+            Kamal::Cli::Main.subcommand_classes.find { |command, clazz| clazz == invocation_class }[0]
+          end
+        end
+      end
+
+      def subcommand
+        @kamal_subcommand ||= begin
+          invocation_class, invocation_commands = *first_invocation
+          invocation_commands[0] if invocation_class != Kamal::Cli::Main
+        end
+      end
+
+      def first_invocation
+        instance_variable_get("@_invocations").first
+      end
+    end
 end

lib/kamal/cli/build.rb

@@ -0,0 +1,106 @@
+class Kamal::Cli::Build < Kamal::Cli::Base
+  class BuildError < StandardError; end
+
+  desc "deliver", "Build app and push app image to registry then pull image on servers"
+  def deliver
+    mutating do
+      push
+      pull
+    end
+  end
+
+  desc "push", "Build and push app image to registry"
+  def push
+    mutating do
+      cli = self
+
+      verify_local_dependencies
+      run_hook "pre-build"
+
+      if (uncommitted_changes = Kamal::Utils.uncommitted_changes).present?
+        say "The following paths have uncommitted changes:\n #{uncommitted_changes}", :yellow
+      end
+
+      run_locally do
+        begin
+          KAMAL.with_verbosity(:debug) do
+            execute *KAMAL.builder.push
+          end
+        rescue SSHKit::Command::Failed => e
+          if e.message =~ /(no builder)|(no such file or directory)/
+            error "Missing compatible builder, so creating a new one first"
+
+            if cli.create
+              KAMAL.with_verbosity(:debug) { execute *KAMAL.builder.push }
+            end
+          else
+            raise
+          end
+        end
+      end
+    end
+  end
+
+  desc "pull", "Pull app image from registry onto servers"
+  def pull
+    mutating do
+      on(KAMAL.hosts) do
+        execute *KAMAL.auditor.record("Pulled image with version #{KAMAL.config.version}"), verbosity: :debug
+        execute *KAMAL.builder.clean, raise_on_non_zero_exit: false
+        execute *KAMAL.builder.pull
+      end
+    end
+  end
+
+  desc "create", "Create a build setup"
+  def create
+    mutating do
+      run_locally do
+        begin
+          debug "Using builder: #{KAMAL.builder.name}"
+          execute *KAMAL.builder.create
+        rescue SSHKit::Command::Failed => e
+          if e.message =~ /stderr=(.*)/
+            error "Couldn't create remote builder: #{$1}"
+            false
+          else
+            raise
+          end
+        end
+      end
+    end
+  end
+
+  desc "remove", "Remove build setup"
+  def remove
+    mutating do
+      run_locally do
+        debug "Using builder: #{KAMAL.builder.name}"
+        execute *KAMAL.builder.remove
+      end
+    end
+  end
+
+  desc "details", "Show build setup"
+  def details
+    run_locally do
+      puts "Builder: #{KAMAL.builder.name}"
+      puts capture(*KAMAL.builder.info)
+    end
+  end
+
+  private
+    def verify_local_dependencies
+      run_locally do
+        begin
+          execute *KAMAL.builder.ensure_local_dependencies_installed
+        rescue SSHKit::Command::Failed => e
+          build_error = e.message =~ /command not found/ ?
+            "Docker is not installed locally" :
+            "Docker buildx plugin is not installed locally"
+
+          raise BuildError, build_error
+        end
+      end
+    end
+end

lib/kamal/cli/healthcheck.rb

@@ -0,0 +1,20 @@
+class Kamal::Cli::Healthcheck < Kamal::Cli::Base
+  default_command :perform
+
+  desc "perform", "Health check current app version"
+  def perform
+    on(KAMAL.primary_host) do
+      begin
+        execute *KAMAL.healthcheck.run
+        Kamal::Utils::HealthcheckPoller.wait_for_healthy { capture_with_info(*KAMAL.healthcheck.status) }
+      rescue Kamal::Utils::HealthcheckPoller::HealthcheckError => e
+        error capture_with_info(*KAMAL.healthcheck.logs)
+        error capture_with_pretty_json(*KAMAL.healthcheck.container_health_log)
+        raise
+      ensure
+        execute *KAMAL.healthcheck.stop, raise_on_non_zero_exit: false
+        execute *KAMAL.healthcheck.remove, raise_on_non_zero_exit: false
+      end
+    end
+  end
+end

lib/kamal/cli/lock.rb

@@ -1,17 +1,17 @@
-class Mrsk::Cli::Lock < Mrsk::Cli::Base
+class Kamal::Cli::Lock < Kamal::Cli::Base
   desc "status", "Report lock status"
   def status
     handle_missing_lock do
-      on(MRSK.primary_host) { puts capture_with_info(*MRSK.lock.status) }
+      on(KAMAL.primary_host) { puts capture_with_debug(*KAMAL.lock.status) }
     end
   end
 
   desc "acquire", "Acquire the deploy lock"
-  option :message, aliases: "-m", type: :string, desc: "A lock mesasge", required: true
+  option :message, aliases: "-m", type: :string, desc: "A lock message", required: true
   def acquire
     message = options[:message]
-    handle_missing_lock do
+    raise_if_locked do
-      on(MRSK.primary_host) { execute *MRSK.lock.acquire(message, MRSK.config.version) }
+      on(KAMAL.primary_host) { execute *KAMAL.lock.acquire(message, KAMAL.config.version), verbosity: :debug }
       say "Acquired the deploy lock"
     end
   end
@@ -19,7 +19,7 @@ class Mrsk::Cli::Lock < Mrsk::Cli::Base
   desc "release", "Release the deploy lock"
   def release
     handle_missing_lock do
-      on(MRSK.primary_host) { execute *MRSK.lock.release }
+      on(KAMAL.primary_host) { execute *KAMAL.lock.release, verbosity: :debug }
       say "Released the deploy lock"
     end
   end

lib/kamal/cli/main.rb

@@ -0,0 +1,249 @@
+class Kamal::Cli::Main < Kamal::Cli::Base
+  desc "setup", "Setup all accessories and deploy app to servers"
+  def setup
+    print_runtime do
+      mutating do
+        invoke "kamal:cli:server:bootstrap"
+        invoke "kamal:cli:accessory:boot", [ "all" ]
+        deploy
+      end
+    end
+  end
+
+  desc "deploy", "Deploy app to servers"
+  option :skip_push, aliases: "-P", type: :boolean, default: false, desc: "Skip image build and push"
+  def deploy
+    runtime = print_runtime do
+      mutating do
+        invoke_options = deploy_options
+
+        say "Log into image registry...", :magenta
+        invoke "kamal:cli:registry:login", [], invoke_options
+
+        if options[:skip_push]
+          say "Pull app image...", :magenta
+          invoke "kamal:cli:build:pull", [], invoke_options
+        else
+          say "Build and push app image...", :magenta
+          invoke "kamal:cli:build:deliver", [], invoke_options
+        end
+
+        run_hook "pre-deploy"
+
+        say "Ensure Traefik is running...", :magenta
+        invoke "kamal:cli:traefik:boot", [], invoke_options
+
+        say "Ensure app can pass healthcheck...", :magenta
+        invoke "kamal:cli:healthcheck:perform", [], invoke_options
+
+        say "Detect stale containers...", :magenta
+        invoke "kamal:cli:app:stale_containers", [], invoke_options
+
+        invoke "kamal:cli:app:boot", [], invoke_options
+
+        say "Prune old containers and images...", :magenta
+        invoke "kamal:cli:prune:all", [], invoke_options
+      end
+    end
+
+    run_hook "post-deploy", runtime: runtime.round
+  end
+
+  desc "redeploy", "Deploy app to servers without bootstrapping servers, starting Traefik, pruning, and registry login"
+  option :skip_push, aliases: "-P", type: :boolean, default: false, desc: "Skip image build and push"
+  def redeploy
+    runtime = print_runtime do
+      mutating do
+        invoke_options = deploy_options
+
+        if options[:skip_push]
+          say "Pull app image...", :magenta
+          invoke "kamal:cli:build:pull", [], invoke_options
+        else
+          say "Build and push app image...", :magenta
+          invoke "kamal:cli:build:deliver", [], invoke_options
+        end
+
+        run_hook "pre-deploy"
+
+        say "Ensure app can pass healthcheck...", :magenta
+        invoke "kamal:cli:healthcheck:perform", [], invoke_options
+
+        say "Detect stale containers...", :magenta
+        invoke "kamal:cli:app:stale_containers", [], invoke_options
+
+        invoke "kamal:cli:app:boot", [], invoke_options
+      end
+    end
+
+    run_hook "post-deploy", runtime: runtime.round
+  end
+
+  desc "rollback [VERSION]", "Rollback app to VERSION"
+  def rollback(version)
+    rolled_back = false
+    runtime = print_runtime do
+      mutating do
+        invoke_options = deploy_options
+
+        KAMAL.config.version = version
+        old_version = nil
+
+        if container_available?(version)
+          run_hook "pre-deploy"
+
+          invoke "kamal:cli:app:boot", [], invoke_options.merge(version: version)
+          rolled_back = true
+        else
+          say "The app version '#{version}' is not available as a container (use 'kamal app containers' for available versions)", :red
+        end
+      end
+    end
+
+    run_hook "post-deploy", runtime: runtime.round if rolled_back
+  end
+
+  desc "details", "Show details about all containers"
+  def details
+    invoke "kamal:cli:traefik:details"
+    invoke "kamal:cli:app:details"
+    invoke "kamal:cli:accessory:details", [ "all" ]
+  end
+
+  desc "audit", "Show audit log from servers"
+  def audit
+    on(KAMAL.hosts) do |host|
+      puts_by_host host, capture_with_info(*KAMAL.auditor.reveal)
+    end
+  end
+
+  desc "config", "Show combined config (including secrets!)"
+  def config
+    run_locally do
+      puts Kamal::Utils.redacted(KAMAL.config.to_h).to_yaml
+    end
+  end
+
+  desc "init", "Create config stub in config/deploy.yml and env stub in .env"
+  option :bundle, type: :boolean, default: false, desc: "Add Kamal to the Gemfile and create a bin/kamal binstub"
+  def init
+    require "fileutils"
+
+    if (deploy_file = Pathname.new(File.expand_path("config/deploy.yml"))).exist?
+      puts "Config file already exists in config/deploy.yml (remove first to create a new one)"
+    else
+      FileUtils.mkdir_p deploy_file.dirname
+      FileUtils.cp_r Pathname.new(File.expand_path("templates/deploy.yml", __dir__)), deploy_file
+      puts "Created configuration file in config/deploy.yml"
+    end
+
+    unless (deploy_file = Pathname.new(File.expand_path(".env"))).exist?
+      FileUtils.cp_r Pathname.new(File.expand_path("templates/template.env", __dir__)), deploy_file
+      puts "Created .env file"
+    end
+
+    unless (hooks_dir = Pathname.new(File.expand_path(".kamal/hooks"))).exist?
+      hooks_dir.mkpath
+      Pathname.new(File.expand_path("templates/sample_hooks", __dir__)).each_child do |sample_hook|
+        FileUtils.cp sample_hook, hooks_dir, preserve: true
+      end
+      puts "Created sample hooks in .kamal/hooks"
+    end
+
+    if options[:bundle]
+      if (binstub = Pathname.new(File.expand_path("bin/kamal"))).exist?
+        puts "Binstub already exists in bin/kamal (remove first to create a new one)"
+      else
+        puts "Adding Kamal to Gemfile and bundle..."
+        run_locally do
+          execute :bundle, :add, :kamal
+          execute :bundle, :binstubs, :kamal
+        end
+        puts "Created binstub file in bin/kamal"
+      end
+    end
+  end
+
+  desc "envify", "Create .env by evaluating .env.erb (or .env.staging.erb -> .env.staging when using -d staging)"
+  def envify
+    if destination = options[:destination]
+      env_template_path = ".env.#{destination}.erb"
+      env_path          = ".env.#{destination}"
+    else
+      env_template_path = ".env.erb"
+      env_path          = ".env"
+    end
+
+    File.write(env_path, ERB.new(File.read(env_template_path)).result, perm: 0600)
+  end
+
+  desc "remove", "Remove Traefik, app, accessories, and registry session from servers"
+  option :confirmed, aliases: "-y", type: :boolean, default: false, desc: "Proceed without confirmation question"
+  def remove
+    mutating do
+      if options[:confirmed] || ask("This will remove all containers and images. Are you sure?", limited_to: %w( y N ), default: "N") == "y"
+        invoke "kamal:cli:traefik:remove", [], options.without(:confirmed)
+        invoke "kamal:cli:app:remove", [], options.without(:confirmed)
+        invoke "kamal:cli:accessory:remove", [ "all" ], options
+        invoke "kamal:cli:registry:logout", [], options.without(:confirmed)
+      end
+    end
+  end
+
+  desc "version", "Show Kamal version"
+  def version
+    puts Kamal::VERSION
+  end
+
+  desc "accessory", "Manage accessories (db/redis/search)"
+  subcommand "accessory", Kamal::Cli::Accessory
+
+  desc "app", "Manage application"
+  subcommand "app", Kamal::Cli::App
+
+  desc "build", "Build application image"
+  subcommand "build", Kamal::Cli::Build
+
+  desc "healthcheck", "Healthcheck application"
+  subcommand "healthcheck", Kamal::Cli::Healthcheck
+
+  desc "lock", "Manage the deploy lock"
+  subcommand "lock", Kamal::Cli::Lock
+
+  desc "prune", "Prune old application images and containers"
+  subcommand "prune", Kamal::Cli::Prune
+
+  desc "registry", "Login and -out of the image registry"
+  subcommand "registry", Kamal::Cli::Registry
+
+  desc "server", "Bootstrap servers with curl and Docker"
+  subcommand "server", Kamal::Cli::Server
+
+  desc "traefik", "Manage Traefik load balancer"
+  subcommand "traefik", Kamal::Cli::Traefik
+
+  private
+    def container_available?(version)
+      begin
+        on(KAMAL.hosts) do
+          KAMAL.roles_on(host).each do |role|
+            container_id = capture_with_info(*KAMAL.app(role: role).container_id_for_version(version))
+            raise "Container not found" unless container_id.present?
+          end
+        end
+      rescue SSHKit::Runner::ExecuteError => e
+        if e.message =~ /Container not found/
+          say "Error looking for container version #{version}: #{e.message}"
+          return false
+        else
+          raise
+        end
+      end
+
+      true
+    end
+
+    def deploy_options
+      { "version" => KAMAL.config.version }.merge(options.without("skip_push"))
+    end
+end

lib/kamal/cli/prune.rb

@@ -0,0 +1,30 @@
+class Kamal::Cli::Prune < Kamal::Cli::Base
+  desc "all", "Prune unused images and stopped containers"
+  def all
+    mutating do
+      containers
+      images
+    end
+  end
+
+  desc "images", "Prune dangling images"
+  def images
+    mutating do
+      on(KAMAL.hosts) do
+        execute *KAMAL.auditor.record("Pruned images"), verbosity: :debug
+        execute *KAMAL.prune.dangling_images
+        execute *KAMAL.prune.tagged_images
+      end
+    end
+  end
+
+  desc "containers", "Prune all stopped containers, except the last 5"
+  def containers
+    mutating do
+      on(KAMAL.hosts) do
+        execute *KAMAL.auditor.record("Pruned containers"), verbosity: :debug
+        execute *KAMAL.prune.containers
+      end
+    end
+  end
+end

lib/kamal/cli/registry.rb

@@ -1,8 +1,8 @@
-class Mrsk::Cli::Registry < Mrsk::Cli::Base
+class Kamal::Cli::Registry < Kamal::Cli::Base
   desc "login", "Log in to registry locally and remotely"
   def login
-    run_locally    { execute *MRSK.registry.login }
+    run_locally    { execute *KAMAL.registry.login }
-    on(MRSK.hosts) { execute *MRSK.registry.login }
+    on(KAMAL.hosts) { execute *KAMAL.registry.login }
   # FIXME: This rescue needed?
   rescue ArgumentError => e
     puts e.message
@@ -10,7 +10,7 @@ class Mrsk::Cli::Registry < Mrsk::Cli::Base
 
   desc "logout", "Log out of registry remotely"
   def logout
-    on(MRSK.hosts) { execute *MRSK.registry.logout }
+    on(KAMAL.hosts) { execute *KAMAL.registry.logout }
   # FIXME: This rescue needed?
   rescue ArgumentError => e
     puts e.message

lib/kamal/cli/server.rb

@@ -1,13 +1,13 @@
-class Mrsk::Cli::Server < Mrsk::Cli::Base
+class Kamal::Cli::Server < Kamal::Cli::Base
-  desc "bootstrap", "Set up Docker to run MRSK apps"
+  desc "bootstrap", "Set up Docker to run Kamal apps"
   def bootstrap
     missing = []
 
-    on(MRSK.hosts | MRSK.accessory_hosts) do |host|
+    on(KAMAL.hosts | KAMAL.accessory_hosts) do |host|
-      unless execute(*MRSK.docker.installed?, raise_on_non_zero_exit: false)
+      unless execute(*KAMAL.docker.installed?, raise_on_non_zero_exit: false)
-        if execute(*MRSK.docker.superuser?, raise_on_non_zero_exit: false)
+        if execute(*KAMAL.docker.superuser?, raise_on_non_zero_exit: false)
           info "Missing Docker on #{host}. Installing…"
-          execute *MRSK.docker.install
+          execute *KAMAL.docker.install
         else
           missing << host
         end

lib/kamal/cli/templates/deploy.yml

@@ -16,7 +16,7 @@ registry:
 
   # Always use an access token rather than real password when possible.
   password:
-    - MRSK_REGISTRY_PASSWORD
+    - KAMAL_REGISTRY_PASSWORD
 
 # Inject ENV variables into containers (secrets come from .env).
 # env:
@@ -25,10 +25,6 @@ registry:
 #   secret:
 #     - RAILS_MASTER_KEY
 
-# Call a broadcast command on deploys.
-# audit_broadcast_cmd:
-#   bin/broadcast_to_bc
-
 # Use a different ssh user than root
 # ssh:
 #   user: app

lib/kamal/cli/templates/sample_hooks/post-deploy.sample

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+# A sample post-deploy hook
+#
+# These environment variables are available:
+# KAMAL_RECORDED_AT
+# KAMAL_PERFORMER
+# KAMAL_VERSION
+# KAMAL_HOSTS
+# KAMAL_ROLE (if set)
+# KAMAL_DESTINATION (if set)
+# KAMAL_RUNTIME
+
+echo "$KAMAL_PERFORMER deployed $KAMAL_VERSION to $KAMAL_DESTINATION in $KAMAL_RUNTIME seconds"

lib/kamal/cli/templates/sample_hooks/pre-build.sample

@@ -0,0 +1,51 @@
+#!/bin/sh
+
+# A sample pre-build hook
+#
+# Checks:
+# 1. We have a clean checkout
+# 2. A remote is configured
+# 3. The branch has been pushed to the remote
+# 4. The version we are deploying matches the remote
+#
+# These environment variables are available:
+# KAMAL_RECORDED_AT
+# KAMAL_PERFORMER
+# KAMAL_VERSION
+# KAMAL_HOSTS
+# KAMAL_ROLE (if set)
+# KAMAL_DESTINATION (if set)
+
+if [ -n "$(git status --porcelain)" ]; then
+  echo "Git checkout is not clean, aborting..." >&2
+  git status --porcelain >&2
+  exit 1
+fi
+
+first_remote=$(git remote)
+
+if [ -z "$first_remote" ]; then
+  echo "No git remote set, aborting..." >&2
+  exit 1
+fi
+
+current_branch=$(git branch --show-current)
+
+if [ -z "$current_branch" ]; then
+  echo "No git remote set, aborting..." >&2
+  exit 1
+fi
+
+remote_head=$(git ls-remote $first_remote --tags $current_branch | cut -f1)
+
+if [ -z "$remote_head" ]; then
+  echo "Branch not pushed to remote, aborting..." >&2
+  exit 1
+fi
+
+if [ "$KAMAL_VERSION" != "$remote_head" ]; then
+  echo "Version ($KAMAL_VERSION) does not match remote HEAD ($remote_head), aborting..." >&2
+  exit 1
+fi
+
+exit 0

lib/kamal/cli/templates/sample_hooks/pre-connect.sample

@@ -0,0 +1,47 @@
+#!/usr/bin/env ruby
+
+# A sample pre-connect check
+#
+# Warms DNS before connecting to hosts in parallel
+#
+# These environment variables are available:
+# KAMAL_RECORDED_AT
+# KAMAL_PERFORMER
+# KAMAL_VERSION
+# KAMAL_HOSTS
+# KAMAL_ROLE (if set)
+# KAMAL_DESTINATION (if set)
+# KAMAL_RUNTIME
+
+hosts = ENV["KAMAL_HOSTS"].split(",")
+results = nil
+max = 3
+
+elapsed = Benchmark.realtime do
+  results = hosts.map do |host|
+    Thread.new do
+      tries = 1
+
+      begin
+        Socket.getaddrinfo(host, 0, Socket::AF_UNSPEC, Socket::SOCK_STREAM, nil, Socket::AI_CANONNAME)
+      rescue SocketError
+        if tries < max
+          puts "Retrying DNS warmup: #{host}"
+          tries += 1
+          sleep rand
+          retry
+        else
+          puts "DNS warmup failed: #{host}"
+          host
+        end
+      end
+
+      tries
+    end
+  end.map(&:value)
+end
+
+retries = results.sum - hosts.size
+nopes = results.count { |r| r == max }
+
+puts "Prewarmed %d DNS lookups in %.2f sec: %d retries, %d failures" % [ hosts.size, elapsed, retries, nopes ]

lib/kamal/cli/templates/sample_hooks/pre-deploy.sample

@@ -0,0 +1,109 @@
+#!/usr/bin/env ruby
+
+# A sample pre-deploy hook
+#
+# Checks the Github status of the build, waiting for a pending build to complete for up to 720 seconds.
+#
+# Fails unless the combined status is "success"
+#
+# These environment variables are available:
+# KAMAL_RECORDED_AT
+# KAMAL_PERFORMER
+# KAMAL_VERSION
+# KAMAL_HOSTS
+# KAMAL_COMMAND
+# KAMAL_SUBCOMMAND
+# KAMAL_ROLE (if set)
+# KAMAL_DESTINATION (if set)
+
+# Only check the build status for production deployments
+if ENV["KAMAL_COMMAND"] == "rollback" || ENV["KAMAL_DESTINATION"] != "production"
+  exit 0
+end
+
+require "bundler/inline"
+
+# true = install gems so this is fast on repeat invocations
+gemfile(true, quiet: true) do
+  source "https://rubygems.org"
+
+  gem "octokit"
+  gem "faraday-retry"
+end
+
+MAX_ATTEMPTS = 72
+ATTEMPTS_GAP = 10
+
+def exit_with_error(message)
+  $stderr.puts message
+  exit 1
+end
+
+class GithubStatusChecks
+  attr_reader :remote_url, :git_sha, :github_client, :combined_status
+
+  def initialize
+    @remote_url = `git config --get remote.origin.url`.strip.delete_prefix("https://github.com/")
+    @git_sha = `git rev-parse HEAD`.strip
+    @github_client = Octokit::Client.new(access_token: ENV["GITHUB_TOKEN"])
+    refresh!
+  end
+
+  def refresh!
+    @combined_status = github_client.combined_status(remote_url, git_sha)
+  end
+
+  def state
+    combined_status[:state]
+  end
+
+  def first_status_url
+    first_status = combined_status[:statuses].find { |status| status[:state] == state }
+    first_status && first_status[:target_url]
+  end
+
+  def complete_count
+    combined_status[:statuses].count { |status| status[:state] != "pending"}
+  end
+
+  def total_count
+    combined_status[:statuses].count
+  end
+
+  def current_status
+    if total_count > 0
+      "Completed #{complete_count}/#{total_count} checks, see #{first_status_url} ..."
+    else
+      "Build not started..."
+    end
+  end
+end
+
+
+$stdout.sync = true
+
+puts "Checking build status..."
+attempts = 0
+checks = GithubStatusChecks.new
+
+begin
+  loop do
+    case checks.state
+    when "success"
+      puts "Checks passed, see #{checks.first_status_url}"
+      exit 0
+    when "failure"
+      exit_with_error "Checks failed, see #{checks.first_status_url}"
+    when "pending"
+      attempts += 1
+    end
+
+    exit_with_error "Checks are still pending, gave up after #{MAX_ATTEMPTS * ATTEMPTS_GAP} seconds" if attempts == MAX_ATTEMPTS
+
+    puts checks.current_status
+    sleep(ATTEMPTS_GAP)
+    checks.refresh!
+  end
+rescue Octokit::NotFound
+  exit_with_error "Build status could not be found"
+end

lib/kamal/cli/templates/template.env

@@ -0,0 +1,2 @@
+KAMAL_REGISTRY_PASSWORD=change-this
+RAILS_MASTER_KEY=another-env

lib/kamal/cli/traefik.rb

@@ -0,0 +1,111 @@
+class Kamal::Cli::Traefik < Kamal::Cli::Base
+  desc "boot", "Boot Traefik on servers"
+  def boot
+    mutating do
+      on(KAMAL.traefik_hosts) do
+        execute *KAMAL.registry.login
+        execute *KAMAL.traefik.start_or_run
+      end
+    end
+  end
+
+  desc "reboot", "Reboot Traefik on servers (stop container, remove container, start new container)"
+  option :rolling, type: :boolean, default: false, desc: "Reboot traefik on hosts in sequence, rather than in parallel"
+  def reboot
+    mutating do
+      on(KAMAL.traefik_hosts, in: options[:rolling] ? :sequence : :parallel) do
+        execute *KAMAL.auditor.record("Rebooted traefik"), verbosity: :debug
+        execute *KAMAL.registry.login
+        execute *KAMAL.traefik.stop
+        execute *KAMAL.traefik.remove_container
+        execute *KAMAL.traefik.run
+      end
+    end
+  end
+
+  desc "start", "Start existing Traefik container on servers"
+  def start
+    mutating do
+      on(KAMAL.traefik_hosts) do
+        execute *KAMAL.auditor.record("Started traefik"), verbosity: :debug
+        execute *KAMAL.traefik.start
+      end
+    end
+  end
+
+  desc "stop", "Stop existing Traefik container on servers"
+  def stop
+    mutating do
+      on(KAMAL.traefik_hosts) do
+        execute *KAMAL.auditor.record("Stopped traefik"), verbosity: :debug
+        execute *KAMAL.traefik.stop
+      end
+    end
+  end
+
+  desc "restart", "Restart existing Traefik container on servers"
+  def restart
+    mutating do
+      stop
+      start
+    end
+  end
+
+  desc "details", "Show details about Traefik container from servers"
+  def details
+    on(KAMAL.traefik_hosts) { |host| puts_by_host host, capture_with_info(*KAMAL.traefik.info), type: "Traefik" }
+  end
+
+  desc "logs", "Show log lines from Traefik on servers"
+  option :since, aliases: "-s", desc: "Show logs since timestamp (e.g. 2013-01-02T13:23:37Z) or relative (e.g. 42m for 42 minutes)"
+  option :lines, type: :numeric, aliases: "-n", desc: "Number of log lines to pull from each server"
+  option :grep, aliases: "-g", desc: "Show lines with grep match only (use this to fetch specific requests by id)"
+  option :follow, aliases: "-f", desc: "Follow logs on primary server (or specific host set by --hosts)"
+  def logs
+    grep = options[:grep]
+
+    if options[:follow]
+      run_locally do
+        info "Following logs on #{KAMAL.primary_host}..."
+        info KAMAL.traefik.follow_logs(host: KAMAL.primary_host, grep: grep)
+        exec KAMAL.traefik.follow_logs(host: KAMAL.primary_host, grep: grep)
+      end
+    else
+      since = options[:since]
+      lines = options[:lines].presence || ((since || grep) ? nil : 100) # Default to 100 lines if since or grep isn't set
+
+      on(KAMAL.traefik_hosts) do |host|
+        puts_by_host host, capture(*KAMAL.traefik.logs(since: since, lines: lines, grep: grep)), type: "Traefik"
+      end
+    end
+  end
+
+  desc "remove", "Remove Traefik container and image from servers"
+  def remove
+    mutating do
+      stop
+      remove_container
+      remove_image
+    end
+  end
+
+  desc "remove_container", "Remove Traefik container from servers", hide: true
+  def remove_container
+    mutating do
+      on(KAMAL.traefik_hosts) do
+        execute *KAMAL.auditor.record("Removed traefik container"), verbosity: :debug
+        execute *KAMAL.traefik.remove_container
+      end
+    end
+  end
+
+  desc "remove_image", "Remove Traefik image from servers", hide: true
+  def remove_image
+    mutating do
+      on(KAMAL.traefik_hosts) do
+        execute *KAMAL.auditor.record("Removed traefik image"), verbosity: :debug
+        execute *KAMAL.traefik.remove_image
+      end
+    end
+  end
+end

lib/kamal/commander.rb

@@ -1,7 +1,7 @@
 require "active_support/core_ext/enumerable"
 require "active_support/core_ext/module/delegation"
 
-class Mrsk::Commander
+class Kamal::Commander
   attr_accessor :verbosity, :holding_lock, :hold_lock_on_error
 
   def initialize
@@ -11,7 +11,7 @@ class Mrsk::Commander
   end
 
   def config
-    @config ||= Mrsk::Configuration.create_from(**@config_kwargs).tap do |config|
+    @config ||= Kamal::Configuration.create_from(**@config_kwargs).tap do |config|
       @config_kwargs = nil
       configure_sshkit_with(config)
     end
@@ -77,43 +77,47 @@ class Mrsk::Commander
 
 
   def app(role: nil)
-    Mrsk::Commands::App.new(config, role: role)
+    Kamal::Commands::App.new(config, role: role)
   end
 
   def accessory(name)
-    Mrsk::Commands::Accessory.new(config, name: name)
+    Kamal::Commands::Accessory.new(config, name: name)
   end
 
-  def auditor(role: nil)
+  def auditor(**details)
-    Mrsk::Commands::Auditor.new(config, role: role)
+    Kamal::Commands::Auditor.new(config, **details)
   end
 
   def builder
-    @builder ||= Mrsk::Commands::Builder.new(config)
+    @builder ||= Kamal::Commands::Builder.new(config)
   end
 
   def docker
-    @docker ||= Mrsk::Commands::Docker.new(config)
+    @docker ||= Kamal::Commands::Docker.new(config)
   end
 
   def healthcheck
-    @healthcheck ||= Mrsk::Commands::Healthcheck.new(config)
+    @healthcheck ||= Kamal::Commands::Healthcheck.new(config)
   end
 
-  def prune
+  def hook
-    @prune ||= Mrsk::Commands::Prune.new(config)
+    @hook ||= Kamal::Commands::Hook.new(config)
-  end
-
-  def registry
-    @registry ||= Mrsk::Commands::Registry.new(config)
-  end
-
-  def traefik
-    @traefik ||= Mrsk::Commands::Traefik.new(config)
   end
 
   def lock
-    @lock ||= Mrsk::Commands::Lock.new(config)
+    @lock ||= Kamal::Commands::Lock.new(config)
+  end
+
+  def prune
+    @prune ||= Kamal::Commands::Prune.new(config)
+  end
+
+  def registry
+    @registry ||= Kamal::Commands::Registry.new(config)
+  end
+
+  def traefik
+    @traefik ||= Kamal::Commands::Traefik.new(config)
   end
 
   def with_verbosity(level)
@@ -139,7 +143,11 @@ class Mrsk::Commander
   private
     # Lazy setup of SSHKit
     def configure_sshkit_with(config)
-      SSHKit::Backend::Netssh.configure { |ssh| ssh.ssh_options = config.ssh_options }
+      SSHKit::Backend::Netssh.pool.idle_timeout = config.sshkit.pool_idle_timeout
+      SSHKit::Backend::Netssh.configure do |sshkit|
+        sshkit.max_concurrent_starts = config.sshkit.max_concurrent_starts
+        sshkit.ssh_options = config.ssh.options
+      end
       SSHKit.config.command_map[:docker] = "docker" # No need to use /usr/bin/env, just clogs up the logs
       SSHKit.config.output_verbosity = verbosity
     end

lib/kamal/commands.rb

@@ -0,0 +1,2 @@
+module Kamal::Commands
+end

lib/kamal/commands/accessory.rb

@@ -1,4 +1,4 @@
-class Mrsk::Commands::Accessory < Mrsk::Commands::Base
+class Kamal::Commands::Accessory < Kamal::Commands::Base
   attr_reader :accessory_config
   delegate :service_name, :image, :hosts, :port, :files, :directories, :cmd,
            :publish_args, :env_args, :volume_args, :label_args, :option_args, to: :accessory_config

lib/kamal/commands/app.rb

@@ -1,4 +1,6 @@
-class Mrsk::Commands::App < Mrsk::Commands::Base
+class Kamal::Commands::App < Kamal::Commands::Base
+  ACTIVE_DOCKER_STATUSES = [ :running, :restarting ]
+
   attr_reader :role
 
   def initialize(config, role: nil)
@@ -6,14 +8,19 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
     @role = role
   end
 
-  def run
+  def start_or_run(hostname: nil)
+    combine start, run(hostname: hostname), by: "||"
+  end
+
+  def run(hostname: nil)
     role = config.role(self.role)
 
     docker :run,
       "--detach",
       "--restart unless-stopped",
       "--name", container_name,
-      "-e", "MRSK_CONTAINER_NAME=\"#{container_name}\"",
+      *(["--hostname", hostname] if hostname),
+      "-e", "KAMAL_CONTAINER_NAME=\"#{container_name}\"",
       *role.env_args,
       *role.health_check_args,
       *config.logging_args,
@@ -69,11 +76,14 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
   end
 
   def execute_in_new_container(*command, interactive: false)
+    role = config.role(self.role)
+
     docker :run,
       ("-it" if interactive),
       "--rm",
       *config.env_args,
       *config.volume_args,
+      *role&.option_args,
       config.absolute_image,
       *command
   end
@@ -88,22 +98,21 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
 
 
   def current_running_container_id
-    docker :ps, "--quiet", *filter_args(status: :running), "--latest"
+    docker :ps, "--quiet", *filter_args(statuses: ACTIVE_DOCKER_STATUSES), "--latest"
   end
 
-  def container_id_for_version(version)
+  def container_id_for_version(version, only_running: false)
-    container_id_for(container_name: container_name(version))
+    container_id_for(container_name: container_name(version), only_running: only_running)
   end
 
   def current_running_version
-    list_versions("--latest", status: :running)
+    list_versions("--latest", statuses: ACTIVE_DOCKER_STATUSES)
   end
 
-  def list_versions(*docker_args, status: nil)
+  def list_versions(*docker_args, statuses: nil)
     pipe \
-      docker(:ps, *filter_args(status: status), *docker_args, "--format", '"{{.Names}}"'),
+      docker(:ps, *filter_args(statuses: statuses), *docker_args, "--format", '"{{.Names}}"'),
-      %(grep -oE "\\-[^-]+$"), # Extract SHA from "service-role-dest-SHA"
+      %(while read line; do echo ${line##{service_role_dest}-}; done) # Extract SHA from "service-role-dest-SHA"
-      %(cut -c 2-)
   end
 
   def list_containers
@@ -146,15 +155,21 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
       [ config.service, role, config.destination, version || config.version ].compact.join("-")
     end
 
-    def filter_args(status: nil)
+    def filter_args(statuses: nil)
-      argumentize "--filter", filters(status: status)
+      argumentize "--filter", filters(statuses: statuses)
     end
 
-    def filters(status: nil)
+    def service_role_dest
+      [config.service, role, config.destination].compact.join("-")
+    end
+
+    def filters(statuses: nil)
       [ "label=service=#{config.service}" ].tap do |filters|
         filters << "label=destination=#{config.destination}" if config.destination
         filters << "label=role=#{role}" if role
-        filters << "status=#{status}" if status
+        statuses&.each do |status|
+          filters << "status=#{status}"
+        end
       end
     end
 end

lib/kamal/commands/auditor.rb

@@ -0,0 +1,28 @@
+class Kamal::Commands::Auditor < Kamal::Commands::Base
+  attr_reader :details
+
+  def initialize(config, **details)
+    super(config)
+    @details = details
+  end
+
+  # Runs remotely
+  def record(line, **details)
+    append \
+      [ :echo, audit_tags(**details).except(:version, :service_version).to_s, line ],
+      audit_log_file
+  end
+
+  def reveal
+    [ :tail, "-n", 50, audit_log_file ]
+  end
+
+  private
+    def audit_log_file
+      [ "kamal", config.service, config.destination, "audit.log" ].compact.join("-")
+    end
+
+    def audit_tags(**details)
+      tags(**self.details, **details)
+    end
+end

lib/kamal/commands/base.rb

@@ -1,8 +1,9 @@
-module Mrsk::Commands
+module Kamal::Commands
   class Base
-    delegate :sensitive, :argumentize, to: Mrsk::Utils
+    delegate :sensitive, :argumentize, to: Kamal::Utils
 
     DOCKER_HEALTH_STATUS_FORMAT = "'{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}'"
+    DOCKER_HEALTH_LOG_FORMAT    = "'{{json .State.Health}}'"
 
     attr_accessor :config
 
@@ -12,13 +13,17 @@ module Mrsk::Commands
 
     def run_over_ssh(*command, host:)
       "ssh".tap do |cmd|
-        cmd << " -J #{config.ssh_proxy.jump_proxies}" if config.ssh_proxy
+        if config.ssh.proxy && config.ssh.proxy.is_a?(Net::SSH::Proxy::Jump)
-        cmd << " -t #{config.ssh_user}@#{host} '#{command.join(" ")}'"
+          cmd << " -J #{config.ssh.proxy.jump_proxies}"
+        elsif config.ssh.proxy && config.ssh.proxy.is_a?(Net::SSH::Proxy::Command)
+          cmd << " -o ProxyCommand='#{config.ssh.proxy.command_line_template}'"
+        end
+        cmd << " -t #{config.ssh.user}@#{host} '#{command.join(" ")}'"
       end
     end
 
-    def container_id_for(container_name:)
+    def container_id_for(container_name:, only_running: false)
-      docker :container, :ls, "--all", "--filter", "name=^#{container_name}$", "--quiet"
+      docker :container, :ls, *("--all" unless only_running), "--filter", "name=^#{container_name}$", "--quiet"
     end
 
     private
@@ -52,5 +57,9 @@ module Mrsk::Commands
       def docker(*args)
         args.compact.unshift :docker
       end
+
+      def tags(**details)
+        Kamal::Tags.from_config(config, **details)
+      end
   end
 end

lib/kamal/commands/builder.rb

@@ -0,0 +1,64 @@
+require "active_support/core_ext/string/filters"
+
+class Kamal::Commands::Builder < Kamal::Commands::Base
+  delegate :create, :remove, :push, :clean, :pull, :info, to: :target
+
+  def name
+    target.class.to_s.remove("Kamal::Commands::Builder::").underscore.inquiry
+  end
+
+  def target
+    case
+    when !config.builder.multiarch? && !config.builder.cached?
+      native
+    when !config.builder.multiarch? && config.builder.cached?
+      native_cached
+    when config.builder.local? && config.builder.remote?
+      multiarch_remote
+    when config.builder.remote?
+      native_remote
+    else
+      multiarch
+    end
+  end
+
+  def native
+    @native ||= Kamal::Commands::Builder::Native.new(config)
+  end
+
+  def native_cached
+    @native ||= Kamal::Commands::Builder::Native::Cached.new(config)
+  end
+
+  def native_remote
+    @native ||= Kamal::Commands::Builder::Native::Remote.new(config)
+  end
+
+  def multiarch
+    @multiarch ||= Kamal::Commands::Builder::Multiarch.new(config)
+  end
+
+  def multiarch_remote
+    @multiarch_remote ||= Kamal::Commands::Builder::Multiarch::Remote.new(config)
+  end
+
+
+  def ensure_local_dependencies_installed
+    if name.native?
+      ensure_local_docker_installed
+    else
+      combine \
+        ensure_local_docker_installed,
+        ensure_local_buildx_installed
+    end
+  end
+
+  private
+    def ensure_local_docker_installed
+      docker "--version"
+    end
+
+    def ensure_local_buildx_installed
+      docker :buildx, "version"
+    end
+end

lib/kamal/commands/builder/base.rb

@@ -1,8 +1,9 @@
 
-class Mrsk::Commands::Builder::Base < Mrsk::Commands::Base
+class Kamal::Commands::Builder::Base < Kamal::Commands::Base
   class BuilderError < StandardError; end
 
-  delegate :argumentize, to: Mrsk::Utils
+  delegate :argumentize, to: Kamal::Utils
+  delegate :args, :secrets, :dockerfile, :local_arch, :local_host, :remote_arch, :remote_host, :cache_from, :cache_to, to: :builder_config
 
   def clean
     docker :image, :rm, "--force", config.absolute_image
@@ -13,11 +14,11 @@ class Mrsk::Commands::Builder::Base < Mrsk::Commands::Base
   end
 
   def build_options
-    [ *build_tags, *build_labels, *build_args, *build_secrets, *build_dockerfile ]
+    [ *build_tags, *build_cache, *build_labels, *build_args, *build_secrets, *build_dockerfile ]
   end
 
   def build_context
-    context
+    config.builder.context
   end
 
 
@@ -26,6 +27,13 @@ class Mrsk::Commands::Builder::Base < Mrsk::Commands::Base
       [ "-t", config.absolute_image, "-t", config.latest_image ]
     end
 
+    def build_cache
+      if cache_to && cache_from
+        ["--cache-to", cache_to,
+          "--cache-from", cache_from]
+      end
+    end
+
     def build_labels
       argumentize "--label", { service: config.service }
     end
@@ -46,19 +54,7 @@ class Mrsk::Commands::Builder::Base < Mrsk::Commands::Base
       end
     end
 
-    def args
+    def builder_config
-      (config.builder && config.builder["args"]) || {}
+      config.builder
-    end
-
-    def secrets
-      (config.builder && config.builder["secrets"]) || []
-    end
-
-    def dockerfile
-      (config.builder && config.builder["dockerfile"]) || "Dockerfile"
-    end
-
-    def context
-      (config.builder && config.builder["context"]) || "."
     end
 end

lib/kamal/commands/builder/multiarch.rb

@@ -1,4 +1,4 @@
-class Mrsk::Commands::Builder::Multiarch < Mrsk::Commands::Builder::Base
+class Kamal::Commands::Builder::Multiarch < Kamal::Commands::Builder::Base
   def create
     docker :buildx, :create, "--use", "--name", builder_name
   end
@@ -24,6 +24,6 @@ class Mrsk::Commands::Builder::Multiarch < Mrsk::Commands::Builder::Base
 
   private
     def builder_name
-      "mrsk-#{config.service}-multiarch"
+      "kamal-#{config.service}-multiarch"
     end
 end

lib/kamal/commands/builder/multiarch/remote.rb

@@ -1,4 +1,4 @@
-class Mrsk::Commands::Builder::Multiarch::Remote < Mrsk::Commands::Builder::Multiarch
+class Kamal::Commands::Builder::Multiarch::Remote < Kamal::Commands::Builder::Multiarch
   def create
     combine \
       create_contexts,
@@ -22,17 +22,17 @@ class Mrsk::Commands::Builder::Multiarch::Remote < Mrsk::Commands::Builder::Mult
     end
 
     def create_local_buildx
-      docker :buildx, :create, "--name", builder_name, builder_name_with_arch(local["arch"]), "--platform", "linux/#{local["arch"]}"
+      docker :buildx, :create, "--name", builder_name, builder_name_with_arch(local_arch), "--platform", "linux/#{local_arch}"
     end
 
     def append_remote_buildx
-      docker :buildx, :create, "--append", "--name", builder_name, builder_name_with_arch(remote["arch"]), "--platform", "linux/#{remote["arch"]}"
+      docker :buildx, :create, "--append", "--name", builder_name, builder_name_with_arch(remote_arch), "--platform", "linux/#{remote_arch}"
     end
 
     def create_contexts
       combine \
-        create_context(local["arch"], local["host"]),
+        create_context(local_arch, local_host),
-        create_context(remote["arch"], remote["host"])
+        create_context(remote_arch, remote_host)
     end
 
     def create_context(arch, host)
@@ -41,19 +41,11 @@ class Mrsk::Commands::Builder::Multiarch::Remote < Mrsk::Commands::Builder::Mult
 
     def remove_contexts
       combine \
-        remove_context(local["arch"]),
+        remove_context(local_arch),
-        remove_context(remote["arch"])
+        remove_context(remote_arch)
     end
 
     def remove_context(arch)
       docker :context, :rm, builder_name_with_arch(arch)
     end
-
-    def local
-      config.builder["local"]
-    end
-
-    def remote
-      config.builder["remote"]
-    end
 end

lib/kamal/commands/builder/native.rb

@@ -1,10 +1,10 @@
-class Mrsk::Commands::Builder::Native < Mrsk::Commands::Builder::Base
+class Kamal::Commands::Builder::Native < Kamal::Commands::Builder::Base
   def create
-    # No-op on native
+    # No-op on native without cache
   end
 
   def remove
-    # No-op on native
+    # No-op on native without cache
   end
 
   def push

lib/kamal/commands/builder/native/cached.rb

@@ -0,0 +1,16 @@
+class Kamal::Commands::Builder::Native::Cached < Kamal::Commands::Builder::Native
+  def create
+    docker :buildx, :create, "--use", "--driver=docker-container"
+  end
+
+  def remove
+    docker :buildx, :rm, builder_name
+  end
+
+  def push
+    docker :buildx, :build,
+      "--push",
+      *build_options,
+      build_context
+  end
+end

lib/kamal/commands/builder/native/remote.rb

@@ -1,4 +1,4 @@
-class Mrsk::Commands::Builder::Native::Remote < Mrsk::Commands::Builder::Native
+class Kamal::Commands::Builder::Native::Remote < Kamal::Commands::Builder::Native
   def create
     chain \
       create_context,
@@ -28,29 +28,21 @@ class Mrsk::Commands::Builder::Native::Remote < Mrsk::Commands::Builder::Native
 
 
   private
-    def arch
-      config.builder["remote"]["arch"]
-    end
-
-    def host
-      config.builder["remote"]["host"]
-    end
-
     def builder_name
-      "mrsk-#{config.service}-native-remote"
+      "kamal-#{config.service}-native-remote"
     end
 
     def builder_name_with_arch
-      "#{builder_name}-#{arch}"
+      "#{builder_name}-#{remote_arch}"
     end
 
     def platform
-      "linux/#{arch}"
+      "linux/#{remote_arch}"
     end
 
     def create_context
       docker :context, :create,
-        builder_name_with_arch, "--description", "'#{builder_name} #{arch} native host'", "--docker", "'host=#{host}'"
+        builder_name_with_arch, "--description", "'#{builder_name} #{remote_arch} native host'", "--docker", "'host=#{remote_host}'"
     end
 
     def remove_context

lib/kamal/commands/docker.rb

@@ -1,4 +1,4 @@
-class Mrsk::Commands::Docker < Mrsk::Commands::Base
+class Kamal::Commands::Docker < Kamal::Commands::Base
   # Install Docker using the https://github.com/docker/docker-install convenience script.
   def install
     pipe [ :curl, "-fsSL", "https://get.docker.com" ], :sh

lib/kamal/commands/healthcheck.rb

@@ -1,4 +1,4 @@
-class Mrsk::Commands::Healthcheck < Mrsk::Commands::Base
+class Kamal::Commands::Healthcheck < Kamal::Commands::Base
   EXPOSED_PORT = 3999
 
   def run
@@ -9,7 +9,7 @@ class Mrsk::Commands::Healthcheck < Mrsk::Commands::Base
       "--name", container_name_with_version,
       "--publish", "#{EXPOSED_PORT}:#{config.healthcheck["port"]}",
       "--label", "service=#{container_name}",
-      "-e", "MRSK_CONTAINER_NAME=\"#{container_name}\"",
+      "-e", "KAMAL_CONTAINER_NAME=\"#{container_name}\"",
       *web.env_args,
       *web.health_check_args,
       *config.volume_args,
@@ -22,6 +22,10 @@ class Mrsk::Commands::Healthcheck < Mrsk::Commands::Base
     pipe container_id, xargs(docker(:inspect, "--format", DOCKER_HEALTH_STATUS_FORMAT))
   end
 
+  def container_health_log
+    pipe container_id, xargs(docker(:inspect, "--format", DOCKER_HEALTH_LOG_FORMAT))
+  end
+
   def logs
     pipe container_id, xargs(docker(:logs, "--tail", 50, "2>&1"))
   end

lib/kamal/commands/hook.rb

@@ -0,0 +1,14 @@
+class Kamal::Commands::Hook < Kamal::Commands::Base
+  def run(hook, **details)
+    [ hook_file(hook), env: tags(**details).env ]
+  end
+
+  def hook_exists?(hook)
+    Pathname.new(hook_file(hook)).exist?
+  end
+
+  private
+    def hook_file(hook)
+      "#{config.hooks_path}/#{hook}"
+    end
+end

lib/kamal/commands/lock.rb

@@ -1,7 +1,7 @@
 require "active_support/duration"
-require "active_support/core_ext/numeric/time"
+require "time"
 
-class Mrsk::Commands::Lock < Mrsk::Commands::Base
+class Kamal::Commands::Lock < Kamal::Commands::Base
   def acquire(message, version)
     combine \
       [:mkdir, lock_dir],
@@ -40,7 +40,7 @@ class Mrsk::Commands::Lock < Mrsk::Commands::Base
     end
 
     def lock_dir
-      :mrsk_lock
+      "kamal_lock-#{config.service}"
     end
 
     def lock_details_file
@@ -49,7 +49,7 @@ class Mrsk::Commands::Lock < Mrsk::Commands::Base
 
     def lock_details(message, version)
       <<~DETAILS.strip
-        Locked by: #{locked_by} at #{Time.now.gmtime}
+        Locked by: #{locked_by} at #{Time.now.utc.iso8601}
         Version: #{version}
         Message: #{message}
       DETAILS

lib/kamal/commands/prune.rb

@@ -0,0 +1,38 @@
+require "active_support/duration"
+require "active_support/core_ext/numeric/time"
+
+class Kamal::Commands::Prune < Kamal::Commands::Base
+  def dangling_images
+    docker :image, :prune, "--force", "--filter", "label=service=#{config.service}", "--filter", "dangling=true"
+  end
+
+  def tagged_images
+    pipe \
+      docker(:image, :ls, *service_filter, "--format", "'{{.ID}} {{.Repository}}:{{.Tag}}'"),
+      "grep -v -w \"#{active_image_list}\"",
+      "while read image tag; do docker rmi $tag; done"
+  end
+
+  def containers(keep_last: 5)
+    pipe \
+      docker(:ps, "-q", "-a", *service_filter, *stopped_containers_filters),
+      "tail -n +#{keep_last + 1}",
+      "while read container_id; do docker rm $container_id; done"
+  end
+
+  private
+    def stopped_containers_filters
+      [ "created", "exited", "dead" ].flat_map { |status| ["--filter", "status=#{status}"] }
+    end
+
+    def active_image_list
+      # Pull the images that are used by any containers
+      # Append repo:latest - to avoid deleting the latest tag
+      # Append repo:<none> - to avoid deleting dangling images that are in use. Unused dangling images are deleted separately
+      "$(docker container ls -a --format '{{.Image}}\\|' --filter label=service=#{config.service} | tr -d '\\n')#{config.latest_image}\\|#{config.repository}:<none>"
+    end
+
+    def service_filter
+      [ "--filter", "label=service=#{config.service}" ]
+    end
+end

lib/kamal/commands/registry.rb

@@ -1,4 +1,4 @@
-class Mrsk::Commands::Registry < Mrsk::Commands::Base
+class Kamal::Commands::Registry < Kamal::Commands::Base
   delegate :registry, to: :config
 
   def login

lib/kamal/commands/traefik.rb

@@ -1,21 +1,24 @@
-class Mrsk::Commands::Traefik < Mrsk::Commands::Base
+class Kamal::Commands::Traefik < Kamal::Commands::Base
-  delegate :argumentize, :optionize, to: Mrsk::Utils
+  delegate :argumentize, :argumentize_env_with_secrets, :optionize, to: Kamal::Utils
 
   DEFAULT_IMAGE = "traefik:v2.9"
   CONTAINER_PORT = 80
+  DEFAULT_ARGS = {
+    'log.level' => 'DEBUG'
+  }
 
   def run
     docker :run, "--name traefik",
       "--detach",
       "--restart", "unless-stopped",
-      "--publish", port,
+      *publish_args,
       "--volume", "/var/run/docker.sock:/var/run/docker.sock",
+      *env_args,
       *config.logging_args,
       *label_args,
       *docker_options_args,
       image,
       "--providers.docker",
-      "--log.level=DEBUG",
       *cmd_option_args
   end
 
@@ -27,6 +30,10 @@ class Mrsk::Commands::Traefik < Mrsk::Commands::Base
     docker :container, :stop, "traefik"
   end
 
+  def start_or_run
+    combine start, run, by: "||"
+  end
+
   def info
     docker :ps, "--filter", "name=^traefik$"
   end
@@ -57,10 +64,24 @@ class Mrsk::Commands::Traefik < Mrsk::Commands::Base
   end
 
   private
+    def publish_args
+      argumentize "--publish", port unless config.traefik["publish"] == false
+    end
+
     def label_args
       argumentize "--label", labels
     end
 
+    def env_args
+      env_config = config.traefik["env"] || {}
+
+      if env_config.present?
+        argumentize_env_with_secrets(env_config)
+      else
+        []
+      end
+    end
+
     def labels
       config.traefik["labels"] || []
     end
@@ -75,9 +96,9 @@ class Mrsk::Commands::Traefik < Mrsk::Commands::Base
 
     def cmd_option_args
       if args = config.traefik["args"]
-        optionize args, with: "="
+        optionize DEFAULT_ARGS.merge(args), with: "="
       else
-        []
+        optionize DEFAULT_ARGS, with: "="
       end
     end
 

lib/kamal/configuration.rb

@@ -5,9 +5,9 @@ require "pathname"
 require "erb"
 require "net/ssh/proxy/jump"
 
-class Mrsk::Configuration
+class Kamal::Configuration
-  delegate :service, :image, :servers, :env, :labels, :registry, :builder, :stop_wait_time, to: :raw_config, allow_nil: true
+  delegate :service, :image, :servers, :env, :labels, :registry, :stop_wait_time, :hooks_path, to: :raw_config, allow_nil: true
-  delegate :argumentize, :argumentize_env_with_secrets, :optionize, to: Mrsk::Utils
+  delegate :argumentize, :argumentize_env_with_secrets, :optionize, to: Kamal::Utils
 
   attr_accessor :destination
   attr_accessor :raw_config
@@ -50,11 +50,11 @@ class Mrsk::Configuration
   end
 
   def version
-    @declared_version.presence || ENV["VERSION"] || current_commit_hash
+    @declared_version.presence || ENV["VERSION"] || git_version
   end
 
   def abbreviated_version
-    Mrsk::Utils.abbreviate_version(version)
+    Kamal::Utils.abbreviate_version(version)
   end
 
 
@@ -67,7 +67,7 @@ class Mrsk::Configuration
   end
 
   def accessories
-    @accessories ||= raw_config.accessories&.keys&.collect { |name| Mrsk::Configuration::Accessory.new(name, config: self) } || []
+    @accessories ||= raw_config.accessories&.keys&.collect { |name| Kamal::Configuration::Accessory.new(name, config: self) } || []
   end
 
   def accessory(name)
@@ -88,7 +88,7 @@ class Mrsk::Configuration
   end
 
   def boot
-    Mrsk::Configuration::Boot.new(config: self)
+    Kamal::Configuration::Boot.new(config: self)
   end
 
 
@@ -135,31 +135,14 @@ class Mrsk::Configuration
   end
 
 
-  def ssh_user
+  def ssh
-    if raw_config.ssh.present?
+    Kamal::Configuration::Ssh.new(config: self)
-      raw_config.ssh["user"] || "root"
-    else
-      "root"
-    end
   end
 
-  def ssh_proxy
+  def sshkit
-    if raw_config.ssh.present? && raw_config.ssh["proxy"]
+    Kamal::Configuration::Sshkit.new(config: self)
-      Net::SSH::Proxy::Jump.new \
-        raw_config.ssh["proxy"].include?("@") ? raw_config.ssh["proxy"] : "root@#{raw_config.ssh["proxy"]}"
-    elsif raw_config.ssh.present? && raw_config.ssh["proxy_command"]
-      Net::SSH::Proxy::Command.new(raw_config.ssh["proxy_command"])
-    end
   end
 
-  def ssh_options
-    { user: ssh_user, proxy: ssh_proxy, auth_methods: [ "publickey" ] }.compact
-  end
-
-
-  def audit_broadcast_cmd
-    raw_config.audit_broadcast_cmd
-  end
 
   def healthcheck
     { "path" => "/up", "port" => 3000, "max_attempts" => 7 }.merge(raw_config.healthcheck || {})
@@ -169,8 +152,12 @@ class Mrsk::Configuration
     raw_config.readiness_delay || 7
   end
 
+  def minimum_version
+    raw_config.minimum_version
+  end
+
   def valid?
-    ensure_required_keys_present && ensure_env_available
+    ensure_required_keys_present && ensure_valid_kamal_version
   end
 
 
@@ -185,8 +172,9 @@ class Mrsk::Configuration
       service_with_version: service_with_version,
       env_args: env_args,
       volume_args: volume_args,
-      ssh_options: ssh_options,
+      ssh_options: ssh.to_h,
-      builder: raw_config.builder,
+      sshkit: sshkit.to_h,
+      builder: builder.to_h,
       accessories: raw_config.accessories,
       logging: logging_args,
       healthcheck: healthcheck
@@ -197,6 +185,22 @@ class Mrsk::Configuration
     raw_config.traefik || {}
   end
 
+  def hooks_path
+    raw_config.hooks_path || ".kamal/hooks"
+  end
+
+  def builder
+    Kamal::Configuration::Builder.new(config: self)
+  end
+
+  # Will raise KeyError if any secret ENVs are missing
+  def ensure_env_available
+    env_args
+    roles.each(&:env_args)
+
+    true
+  end
+
   private
     # Will raise ArgumentError if any required config keys are missing
     def ensure_required_keys_present
@@ -221,22 +225,25 @@ class Mrsk::Configuration
       true
     end
 
-    # Will raise KeyError if any secret ENVs are missing
+    def ensure_valid_kamal_version
-    def ensure_env_available
+      if minimum_version && Gem::Version.new(minimum_version) > Gem::Version.new(Kamal::VERSION)
-      env_args
+        raise ArgumentError, "Current version is #{Kamal::VERSION}, minimum required is #{minimum_version}"
-      roles.each(&:env_args)
+      end
 
       true
     end
 
+
     def role_names
       raw_config.servers.is_a?(Array) ? [ "web" ] : raw_config.servers.keys.sort
     end
 
-    def current_commit_hash
+    def git_version
-      @current_commit_hash ||=
+      @git_version ||=
         if system("git rev-parse")
-          `git rev-parse HEAD`.strip
+          uncommitted_suffix = Kamal::Utils.uncommitted_changes.present? ? "_uncommitted_#{SecureRandom.hex(8)}" : ""
+
+          "#{`git rev-parse HEAD`.strip}#{uncommitted_suffix}"
         else
           raise "Can't use commit hash as version, no git repository found in #{Dir.pwd}"
         end

lib/kamal/configuration/accessory.rb

@@ -1,5 +1,5 @@
-class Mrsk::Configuration::Accessory
+class Kamal::Configuration::Accessory
-  delegate :argumentize, :argumentize_env_with_secrets, :optionize, to: Mrsk::Utils
+  delegate :argumentize, :argumentize_env_with_secrets, :optionize, to: Kamal::Utils
 
   attr_accessor :name, :specifics
 

lib/kamal/configuration/boot.rb

@@ -1,4 +1,4 @@
-class Mrsk::Configuration::Boot
+class Kamal::Configuration::Boot
   def initialize(config:)
     @options = config.raw_config.boot || {}
     @host_count = config.all_hosts.count

lib/kamal/configuration/builder.rb

@@ -0,0 +1,114 @@
+class Kamal::Configuration::Builder
+  def initialize(config:)
+    @options = config.raw_config.builder || {}
+    @image = config.image
+    @server = config.registry["server"]
+
+    valid?
+  end
+
+  def to_h
+    @options
+  end
+
+  def multiarch?
+    @options["multiarch"] != false
+  end
+
+  def local?
+    !!@options["local"]
+  end
+
+  def remote?
+    !!@options["remote"]
+  end
+
+  def cached?
+    !!@options["cache"]
+  end
+
+  def args
+    @options["args"] || {}
+  end
+
+  def secrets
+    @options["secrets"] || []
+  end
+
+  def dockerfile
+    @options["dockerfile"] || "Dockerfile"
+  end
+
+  def context
+    @options["context"] || "."
+  end
+
+  def local_arch
+    @options["local"]["arch"] if local?
+  end
+
+  def local_host
+    @options["local"]["host"] if local?
+  end
+
+  def remote_arch
+    @options["remote"]["arch"] if remote?
+  end
+
+  def remote_host
+    @options["remote"]["host"] if remote?
+  end
+
+  def cache_from
+    if cached?
+      case @options["cache"]["type"]
+      when "gha"
+        cache_from_config_for_gha
+      when "registry"
+        cache_from_config_for_registry
+      end
+    end
+  end
+
+  def cache_to
+    if cached?
+      case @options["cache"]["type"]
+      when "gha"
+        cache_to_config_for_gha
+      when "registry"
+        cache_to_config_for_registry
+      end
+    end
+  end
+
+  private
+    def valid?
+      if @options["cache"] && @options["cache"]["type"]
+        raise ArgumentError, "Invalid cache type: #{@options["cache"]["type"]}" unless ["gha", "registry"].include?(@options["cache"]["type"])
+      end
+    end
+
+    def cache_image
+      @options["cache"]&.fetch("image", nil) || "#{@image}-build-cache"
+    end
+
+    def cache_image_ref
+      [ @server, cache_image ].compact.join("/")
+    end
+
+    def cache_from_config_for_gha
+      "type=gha"
+    end
+
+    def cache_from_config_for_registry
+      [ "type=registry", "ref=#{cache_image_ref}" ].compact.join(",")
+    end
+
+    def cache_to_config_for_gha
+      [ "type=gha", @options["cache"]&.fetch("options", nil)].compact.join(",")
+    end
+
+    def cache_to_config_for_registry
+      [ "type=registry", @options["cache"]&.fetch("options", nil), "ref=#{cache_image_ref}" ].compact.join(",")
+    end
+end

lib/kamal/configuration/role.rb

@@ -1,5 +1,5 @@
-class Mrsk::Configuration::Role
+class Kamal::Configuration::Role
-  delegate :argumentize, :argumentize_env_with_secrets, :optionize, to: Mrsk::Utils
+  delegate :argumentize, :argumentize_env_with_secrets, :optionize, to: Kamal::Utils
 
   attr_accessor :name
 
@@ -37,7 +37,7 @@ class Mrsk::Configuration::Role
 
   def health_check_args
     if health_check_cmd.present?
-      optionize({ "health-cmd" => health_check_cmd, "health-interval" => "1s" })
+      optionize({ "health-cmd" => health_check_cmd, "health-interval" => health_check_interval })
     else
       []
     end
@@ -50,6 +50,13 @@ class Mrsk::Configuration::Role
     options["cmd"] || http_health_check(port: options["port"], path: options["path"])
   end
 
+  def health_check_interval
+    options = specializations["healthcheck"] || {}
+    options = config.healthcheck.merge(options) if running_traefik?
+
+    options["interval"] || "1s"
+  end
+
   def cmd
     specializations["cmd"]
   end

lib/kamal/configuration/ssh.rb

@@ -0,0 +1,38 @@
+class Kamal::Configuration::Ssh
+  LOGGER = ::Logger.new(STDERR)
+
+  def initialize(config:)
+    @config = config.raw_config.ssh || {}
+  end
+
+  def user
+    config.fetch("user", "root")
+  end
+
+  def proxy
+    if (proxy = config["proxy"])
+      Net::SSH::Proxy::Jump.new(proxy.include?("@") ? proxy : "root@#{proxy}")
+    elsif (proxy_command = config["proxy_command"])
+      Net::SSH::Proxy::Command.new(proxy_command)
+    end
+  end
+
+  def options
+    { user: user, proxy: proxy, auth_methods: [ "publickey" ], logger: logger, keepalive: true, keepalive_interval: 30 }.compact
+  end
+
+  def to_h
+    options.except(:logger).merge(log_level: log_level)
+  end
+
+  private
+    attr_accessor :config
+
+    def logger
+      LOGGER.tap { |logger| logger.level = log_level }
+    end
+
+    def log_level
+      config.fetch("log_level", :fatal)
+    end
+end

lib/kamal/configuration/sshkit.rb

@@ -0,0 +1,20 @@
+class Kamal::Configuration::Sshkit
+  def initialize(config:)
+    @options = config.raw_config.sshkit || {}
+  end
+
+  def max_concurrent_starts
+    options.fetch("max_concurrent_starts", 30)
+  end
+
+  def pool_idle_timeout
+    options.fetch("pool_idle_timeout", 900)
+  end
+
+  def to_h
+    options
+  end
+
+  private
+    attr_accessor :options
+end

lib/kamal/sshkit_with_ext.rb

@@ -0,0 +1,104 @@
+require "sshkit"
+require "sshkit/dsl"
+require "active_support/core_ext/hash/deep_merge"
+require "json"
+
+class SSHKit::Backend::Abstract
+  def capture_with_info(*args, **kwargs)
+    capture(*args, **kwargs, verbosity: Logger::INFO)
+  end
+
+  def capture_with_debug(*args, **kwargs)
+    capture(*args, **kwargs, verbosity: Logger::DEBUG)
+  end
+
+  def capture_with_pretty_json(*args, **kwargs)
+    JSON.pretty_generate(JSON.parse(capture(*args, **kwargs)))
+  end
+
+  def puts_by_host(host, output, type: "App")
+    puts "#{type} Host: #{host}\n#{output}\n\n"
+  end
+
+  # Our execution pattern is for the CLI execute args lists returned
+  # from commands, but this doesn't support returning execution options
+  # from the command.
+  #
+  # Support this by using kwargs for CLI options and merging with the
+  # args-extracted options.
+  module CommandEnvMerge
+    private
+
+    # Override to merge options returned by commands in the args list with
+    # options passed by the CLI and pass them along as kwargs.
+    def command(args, options)
+      more_options, args = args.partition { |a| a.is_a? Hash }
+      more_options << options
+
+      build_command(args, **more_options.reduce(:deep_merge))
+    end
+
+    # Destructure options to pluck out env for merge
+    def build_command(args, env: nil, **options)
+      # Rely on native Ruby kwargs precedence rather than explicit Hash merges
+      SSHKit::Command.new(*args, **default_command_options, **options, env: env_for(env))
+    end
+
+    def default_command_options
+      { in: pwd_path, host: @host, user: @user, group: @group }
+    end
+
+    def env_for(env)
+      @env.to_h.merge(env.to_h)
+    end
+  end
+  prepend CommandEnvMerge
+end
+
+class SSHKit::Backend::Netssh::Configuration
+  attr_accessor :max_concurrent_starts
+end
+
+class SSHKit::Backend::Netssh
+  module LimitConcurrentStartsClass
+    attr_reader :start_semaphore
+
+    def configure(&block)
+      super &block
+      # Create this here to avoid lazy creation by multiple threads
+      if config.max_concurrent_starts
+        @start_semaphore = Concurrent::Semaphore.new(config.max_concurrent_starts)
+      end
+    end
+  end
+
+  class << self
+    prepend LimitConcurrentStartsClass
+  end
+
+  module LimitConcurrentStartsInstance
+    private
+      def with_ssh(&block)
+        host.ssh_options = self.class.config.ssh_options.merge(host.ssh_options || {})
+        self.class.pool.with(
+          method(:start_with_concurrency_limit),
+          String(host.hostname),
+          host.username,
+          host.netssh_options,
+          &block
+        )
+      end
+
+      def start_with_concurrency_limit(*args)
+        if self.class.start_semaphore
+          self.class.start_semaphore.acquire do
+            Net::SSH.start(*args)
+          end
+        else
+          Net::SSH.start(*args)
+        end
+      end
+  end
+
+  prepend LimitConcurrentStartsInstance
+end

lib/kamal/tags.rb

@@ -0,0 +1,39 @@
+require "time"
+
+class Kamal::Tags
+  attr_reader :config, :tags
+
+  class << self
+    def from_config(config, **extra)
+      new(**default_tags(config), **extra)
+    end
+
+    def default_tags(config)
+      { recorded_at: Time.now.utc.iso8601,
+        performer: `whoami`.chomp,
+        destination: config.destination,
+        version: config.version,
+        service_version: service_version(config) }
+    end
+
+    def service_version(config)
+      [ config.service, config.abbreviated_version ].compact.join("@")
+    end
+  end
+
+  def initialize(**tags)
+    @tags = tags.compact
+  end
+
+  def env
+    tags.transform_keys { |detail| "KAMAL_#{detail.upcase}" }
+  end
+
+  def to_s
+    tags.values.map { |value| "[#{value}]" }.join(" ")
+  end
+
+  def except(*tags)
+    self.class.new(**self.tags.except(*tags))
+  end
+end

lib/kamal/utils.rb

@@ -1,4 +1,4 @@
-module Mrsk::Utils
+module Kamal::Utils
   extend self
 
   DOLLAR_SIGN_WITHOUT_SHELL_EXPANSION_REGEX = /\$(?!{[^\}]*\})/
@@ -46,7 +46,7 @@ module Mrsk::Utils
   # Pass `redaction:` to change the default `"[REDACTED]"` redaction, e.g.
   # `sensitive "#{arg}=#{secret}", redaction: "#{arg}=xxxx"
   def sensitive(...)
-    Mrsk::Utils::Sensitive.new(...)
+    Kamal::Utils::Sensitive.new(...)
   end
 
   def redacted(value)
@@ -84,6 +84,17 @@ module Mrsk::Utils
 
   # Abbreviate a git revhash for concise display
   def abbreviate_version(version)
-    version[0...7] if version
+    if version
+      # Don't abbreviate <sha>_uncommitted_<etc>
+      if version.include?("_")
+        version
+      else
+        version[0...7]
+      end
+    end
+  end
+
+  def uncommitted_changes
+    `git status --porcelain`.strip
   end
 end

lib/kamal/utils/healthcheck_poller.rb

@@ -1,4 +1,4 @@
-class Mrsk::Utils::HealthcheckPoller
+class Kamal::Utils::HealthcheckPoller
   TRAEFIK_HEALTHY_DELAY = 2
 
   class HealthcheckError < StandardError; end
@@ -6,14 +6,14 @@ class Mrsk::Utils::HealthcheckPoller
   class << self
     def wait_for_healthy(pause_after_ready: false, &block)
       attempt = 1
-      max_attempts = MRSK.config.healthcheck["max_attempts"]
+      max_attempts = KAMAL.config.healthcheck["max_attempts"]
 
       begin
         case status = block.call
         when "healthy"
           sleep TRAEFIK_HEALTHY_DELAY if pause_after_ready
         when "running" # No health check configured
-          sleep MRSK.config.readiness_delay if pause_after_ready
+          sleep KAMAL.config.readiness_delay if pause_after_ready
         else
           raise HealthcheckError, "container not ready (#{status})"
         end

lib/kamal/utils/sensitive.rb

@@ -1,6 +1,6 @@
 require "active_support/core_ext/module/delegation"
 
-class Mrsk::Utils::Sensitive
+class Kamal::Utils::Sensitive
   # So SSHKit knows to redact these values.
   include SSHKit::Redaction
 

lib/kamal/version.rb

@@ -0,0 +1,3 @@
+module Kamal
+  VERSION = "0.16.1"
+end

lib/mrsk/cli/app.rb

@@ -1,288 +0,0 @@
-class Mrsk::Cli::App < Mrsk::Cli::Base
-  desc "boot", "Boot app on servers (or reboot app if already running)"
-  def boot
-    with_lock do
-      say "Get most recent version available as an image...", :magenta unless options[:version]
-      using_version(version_or_latest) do |version|
-        say "Start container with version #{version} using a #{MRSK.config.readiness_delay}s readiness delay (or reboot if already running)...", :magenta
-
-        on(MRSK.hosts) do
-          execute *MRSK.auditor.record("Tagging #{MRSK.config.absolute_image} as the latest image"), verbosity: :debug
-          execute *MRSK.app.tag_current_as_latest
-        end
-
-        on(MRSK.hosts, **MRSK.boot_strategy) do |host|
-          roles = MRSK.roles_on(host)
-
-          roles.each do |role|
-            app = MRSK.app(role: role)
-            auditor = MRSK.auditor(role: role)
-
-            execute *auditor.record("Booted app version #{version}"), verbosity: :debug
-
-            if capture_with_info(*app.container_id_for_version(version), raise_on_non_zero_exit: false).present?
-              tmp_version = "#{version}_#{SecureRandom.hex(8)}"
-              info "Renaming container #{version} to #{tmp_version} as already deployed on #{host}"
-              execute *auditor.record("Renaming container #{version} to #{tmp_version}"), verbosity: :debug
-              execute *app.rename_container(version: version, new_version: tmp_version)
-            end
-
-            old_version = capture_with_info(*app.current_running_version, raise_on_non_zero_exit: false).strip
-            execute *app.run
-
-            Mrsk::Utils::HealthcheckPoller.wait_for_healthy(pause_after_ready: true) { capture_with_info(*app.status(version: version)) }
-
-            execute *app.stop(version: old_version), raise_on_non_zero_exit: false if old_version.present?
-          end
-        end
-      end
-    end
-  end
-
-  desc "start", "Start existing app container on servers"
-  def start
-    with_lock do
-      on(MRSK.hosts) do |host|
-        roles = MRSK.roles_on(host)
-
-        roles.each do |role|
-          execute *MRSK.auditor.record("Started app version #{MRSK.config.version}"), verbosity: :debug
-          execute *MRSK.app(role: role).start, raise_on_non_zero_exit: false
-        end
-      end
-    end
-  end
-
-  desc "stop", "Stop app container on servers"
-  def stop
-    with_lock do
-      on(MRSK.hosts) do |host|
-        roles = MRSK.roles_on(host)
-
-        roles.each do |role|
-          execute *MRSK.auditor(role: role).record("Stopped app"), verbosity: :debug
-          execute *MRSK.app(role: role).stop, raise_on_non_zero_exit: false
-        end
-      end
-    end
-  end
-
-  # FIXME: Drop in favor of just containers?
-  desc "details", "Show details about app containers"
-  def details
-    on(MRSK.hosts) do |host|
-      roles = MRSK.roles_on(host)
-
-      roles.each do |role|
-        puts_by_host host, capture_with_info(*MRSK.app(role: role).info)
-      end
-    end
-  end
-
-  desc "exec [CMD]", "Execute a custom command on servers (use --help to show options)"
-  option :interactive, aliases: "-i", type: :boolean, default: false, desc: "Execute command over ssh for an interactive shell (use for console/bash)"
-  option :reuse, type: :boolean, default: false, desc: "Reuse currently running container instead of starting a new one"
-  def exec(cmd)
-    case
-    when options[:interactive] && options[:reuse]
-      say "Get current version of running container...", :magenta unless options[:version]
-      using_version(options[:version] || current_running_version) do |version|
-        say "Launching interactive command with version #{version} via SSH from existing container on #{MRSK.primary_host}...", :magenta
-        run_locally { exec MRSK.app(role: "web").execute_in_existing_container_over_ssh(cmd, host: MRSK.primary_host) }
-      end
-
-    when options[:interactive]
-      say "Get most recent version available as an image...", :magenta unless options[:version]
-      using_version(version_or_latest) do |version|
-        say "Launching interactive command with version #{version} via SSH from new container on #{MRSK.primary_host}...", :magenta
-        run_locally { exec MRSK.app.execute_in_new_container_over_ssh(cmd, host: MRSK.primary_host) }
-      end
-
-    when options[:reuse]
-      say "Get current version of running container...", :magenta unless options[:version]
-      using_version(options[:version] || current_running_version) do |version|
-        say "Launching command with version #{version} from existing container...", :magenta
-
-        on(MRSK.hosts) do |host|
-          roles = MRSK.roles_on(host)
-
-          roles.each do |role|
-            execute *MRSK.auditor(role: role).record("Executed cmd '#{cmd}' on app version #{version}"), verbosity: :debug
-            puts_by_host host, capture_with_info(*MRSK.app(role: role).execute_in_existing_container(cmd))
-          end
-        end
-      end
-
-    else
-      say "Get most recent version available as an image...", :magenta unless options[:version]
-      using_version(version_or_latest) do |version|
-        say "Launching command with version #{version} from new container...", :magenta
-        on(MRSK.hosts) do |host|
-          execute *MRSK.auditor.record("Executed cmd '#{cmd}' on app version #{version}"), verbosity: :debug
-          puts_by_host host, capture_with_info(*MRSK.app.execute_in_new_container(cmd))
-        end
-      end
-    end
-  end
-
-  desc "containers", "Show app containers on servers"
-  def containers
-    on(MRSK.hosts) { |host| puts_by_host host, capture_with_info(*MRSK.app.list_containers) }
-  end
-
-  desc "stale_containers", "Detect app stale containers"
-  option :stop, aliases: "-s", type: :boolean, default: false, desc: "Stop the stale containers found"
-  def stale_containers
-    with_lock do
-      stop = options[:stop]
-
-      cli = self
-
-      on(MRSK.hosts) do |host|
-        roles = MRSK.roles_on(host)
-
-        roles.each do |role|
-          cli.send(:stale_versions, host: host, role: role).each do |version|
-            if stop
-              puts_by_host host, "Stopping stale container for role #{role} with version #{version}"
-              execute *MRSK.app(role: role).stop(version: version), raise_on_non_zero_exit: false
-            else
-              puts_by_host host,  "Detected stale container for role #{role} with version #{version} (use `mrsk app stale_containers --stop` to stop)"
-            end
-          end
-        end
-      end
-    end
-  end
-
-  desc "images", "Show app images on servers"
-  def images
-    on(MRSK.hosts) { |host| puts_by_host host, capture_with_info(*MRSK.app.list_images) }
-  end
-
-  desc "logs", "Show log lines from app on servers (use --help to show options)"
-  option :since, aliases: "-s", desc: "Show lines since timestamp (e.g. 2013-01-02T13:23:37Z) or relative (e.g. 42m for 42 minutes)"
-  option :lines, type: :numeric, aliases: "-n", desc: "Number of lines to show from each server"
-  option :grep, aliases: "-g", desc: "Show lines with grep match only (use this to fetch specific requests by id)"
-  option :follow, aliases: "-f", desc: "Follow log on primary server (or specific host set by --hosts)"
-  def logs
-    # FIXME: Catch when app containers aren't running
-
-    grep = options[:grep]
-
-    if options[:follow]
-      run_locally do
-        info "Following logs on #{MRSK.primary_host}..."
-
-        MRSK.specific_roles ||= ["web"]
-        role = MRSK.roles_on(MRSK.primary_host).first
-
-        info MRSK.app(role: role).follow_logs(host: MRSK.primary_host, grep: grep)
-        exec MRSK.app(role: role).follow_logs(host: MRSK.primary_host, grep: grep)
-      end
-    else
-      since = options[:since]
-      lines = options[:lines].presence || ((since || grep) ? nil : 100) # Default to 100 lines if since or grep isn't set
-
-      on(MRSK.hosts) do |host|
-        roles = MRSK.roles_on(host)
-
-        roles.each do |role|
-          begin
-            puts_by_host host, capture_with_info(*MRSK.app(role: role).logs(since: since, lines: lines, grep: grep))
-          rescue SSHKit::Command::Failed
-            puts_by_host host, "Nothing found"
-          end
-        end
-      end
-    end
-  end
-
-  desc "remove", "Remove app containers and images from servers"
-  def remove
-    with_lock do
-      stop
-      remove_containers
-      remove_images
-    end
-  end
-
-  desc "remove_container [VERSION]", "Remove app container with given version from servers", hide: true
-  def remove_container(version)
-    with_lock do
-      on(MRSK.hosts) do |host|
-        roles = MRSK.roles_on(host)
-
-        roles.each do |role|
-          execute *MRSK.auditor(role: role).record("Removed app container with version #{version}"), verbosity: :debug
-          execute *MRSK.app(role: role).remove_container(version: version)
-        end
-      end
-    end
-  end
-
-  desc "remove_containers", "Remove all app containers from servers", hide: true
-  def remove_containers
-    with_lock do
-      on(MRSK.hosts) do |host|
-        roles = MRSK.roles_on(host)
-
-        roles.each do |role|
-          execute *MRSK.auditor(role: role).record("Removed all app containers"), verbosity: :debug
-          execute *MRSK.app(role: role).remove_containers
-        end
-      end
-    end
-  end
-
-  desc "remove_images", "Remove all app images from servers", hide: true
-  def remove_images
-    with_lock do
-      on(MRSK.hosts) do
-        execute *MRSK.auditor.record("Removed all app images"), verbosity: :debug
-        execute *MRSK.app.remove_images
-      end
-    end
-  end
-
-  desc "version", "Show app version currently running on servers"
-  def version
-    on(MRSK.hosts) { |host| puts_by_host host, capture_with_info(*MRSK.app.current_running_version).strip }
-  end
-
-  private
-    def using_version(new_version)
-      if new_version
-        begin
-          old_version = MRSK.config.version
-          MRSK.config.version = new_version
-          yield new_version
-        ensure
-          MRSK.config.version = old_version
-        end
-      else
-        yield MRSK.config.version
-      end
-    end
-
-    def current_running_version(host: MRSK.primary_host)
-      version = nil
-      on(host) { version = capture_with_info(*MRSK.app.current_running_version).strip }
-      version.presence
-    end
-
-    def stale_versions(host:, role:)
-      versions = nil
-      on(host) do
-        versions = \
-          capture_with_info(*MRSK.app(role: role).list_versions, raise_on_non_zero_exit: false)
-          .split("\n")
-          .drop(1)
-      end
-      versions
-    end
-
-    def version_or_latest
-      options[:version] || "latest"
-    end
-end

lib/mrsk/cli/build.rb

@@ -1,102 +0,0 @@
-class Mrsk::Cli::Build < Mrsk::Cli::Base
-  class BuildError < StandardError; end
-
-  desc "deliver", "Build app and push app image to registry then pull image on servers"
-  def deliver
-    with_lock do
-      push
-      pull
-    end
-  end
-
-  desc "push", "Build and push app image to registry"
-  def push
-    with_lock do
-      cli = self
-
-      run_locally do
-        begin
-          if cli.verify_local_dependencies
-            MRSK.with_verbosity(:debug) { execute *MRSK.builder.push }
-          end
-        rescue SSHKit::Command::Failed => e
-          if e.message =~ /(no builder)|(no such file or directory)/
-            error "Missing compatible builder, so creating a new one first"
-
-            if cli.create
-              MRSK.with_verbosity(:debug) { execute *MRSK.builder.push }
-            end
-          else
-            raise
-          end
-        end
-      end
-    end
-  end
-
-  desc "pull", "Pull app image from registry onto servers"
-  def pull
-    with_lock do
-      on(MRSK.hosts) do
-        execute *MRSK.auditor.record("Pulled image with version #{MRSK.config.version}"), verbosity: :debug
-        execute *MRSK.builder.clean, raise_on_non_zero_exit: false
-        execute *MRSK.builder.pull
-      end
-    end
-  end
-
-  desc "create", "Create a build setup"
-  def create
-    with_lock do
-      run_locally do
-        begin
-          debug "Using builder: #{MRSK.builder.name}"
-          execute *MRSK.builder.create
-        rescue SSHKit::Command::Failed => e
-          if e.message =~ /stderr=(.*)/
-            error "Couldn't create remote builder: #{$1}"
-            false
-          else
-            raise
-          end
-        end
-      end
-    end
-  end
-
-  desc "remove", "Remove build setup"
-  def remove
-    with_lock do
-      run_locally do
-        debug "Using builder: #{MRSK.builder.name}"
-        execute *MRSK.builder.remove
-      end
-    end
-  end
-
-  desc "details", "Show build setup"
-  def details
-    run_locally do
-      puts "Builder: #{MRSK.builder.name}"
-      puts capture(*MRSK.builder.info)
-    end
-  end
-
-
-  desc "", "" # Really a private method, but needed to be invoked from #push
-  def verify_local_dependencies
-    run_locally do
-      begin
-        execute *MRSK.builder.ensure_local_dependencies_installed
-      rescue SSHKit::Command::Failed => e
-        build_error = e.message =~ /command not found/ ?
-          "Docker is not installed locally" :
-          "Docker buildx plugin is not installed locally"
-
-        raise BuildError, build_error
-      end
-    end
-
-    true
-  end
-end

lib/mrsk/cli/healthcheck.rb

@@ -1,19 +0,0 @@
-class Mrsk::Cli::Healthcheck < Mrsk::Cli::Base
-  default_command :perform
-
-  desc "perform", "Health check current app version"
-  def perform
-    on(MRSK.primary_host) do
-      begin
-        execute *MRSK.healthcheck.run
-        Mrsk::Utils::HealthcheckPoller.wait_for_healthy { capture_with_info(*MRSK.healthcheck.status) }
-      rescue Mrsk::Utils::HealthcheckPoller::HealthcheckError => e
-        error capture_with_info(*MRSK.healthcheck.logs)
-        raise
-      ensure
-        execute *MRSK.healthcheck.stop, raise_on_non_zero_exit: false
-        execute *MRSK.healthcheck.remove, raise_on_non_zero_exit: false
-      end
-    end
-  end
-end

lib/mrsk/cli/main.rb

@@ -1,263 +0,0 @@
-class Mrsk::Cli::Main < Mrsk::Cli::Base
-  desc "setup", "Setup all accessories and deploy app to servers"
-  def setup
-    with_lock do
-      print_runtime do
-        invoke "mrsk:cli:server:bootstrap"
-        invoke "mrsk:cli:accessory:boot", [ "all" ]
-        deploy
-      end
-    end
-  end
-
-  desc "deploy", "Deploy app to servers"
-  option :skip_push, aliases: "-P", type: :boolean, default: false, desc: "Skip image build and push"
-  def deploy
-    with_lock do
-      invoke_options = deploy_options
-
-      runtime = print_runtime do
-        say "Log into image registry...", :magenta
-        invoke "mrsk:cli:registry:login", [], invoke_options
-
-        if options[:skip_push]
-          say "Pull app image...", :magenta
-          invoke "mrsk:cli:build:pull", [], invoke_options
-        else
-          say "Build and push app image...", :magenta
-          invoke "mrsk:cli:build:deliver", [], invoke_options
-        end
-
-        say "Ensure Traefik is running...", :magenta
-        invoke "mrsk:cli:traefik:boot", [], invoke_options
-
-        say "Ensure app can pass healthcheck...", :magenta
-        invoke "mrsk:cli:healthcheck:perform", [], invoke_options
-
-        say "Detect stale containers...", :magenta
-        invoke "mrsk:cli:app:stale_containers", [], invoke_options
-
-        hold_lock_on_error do
-          invoke "mrsk:cli:app:boot", [], invoke_options
-        end
-
-        say "Prune old containers and images...", :magenta
-        invoke "mrsk:cli:prune:all", [], invoke_options
-      end
-
-      audit_broadcast "Deployed #{service_version} in #{runtime.round} seconds" unless options[:skip_broadcast]
-    end
-  end
-
-  desc "redeploy", "Deploy app to servers without bootstrapping servers, starting Traefik, pruning, and registry login"
-  option :skip_push, aliases: "-P", type: :boolean, default: false, desc: "Skip image build and push"
-  def redeploy
-    with_lock do
-      invoke_options = deploy_options
-
-      runtime = print_runtime do
-        if options[:skip_push]
-          say "Pull app image...", :magenta
-          invoke "mrsk:cli:build:pull", [], invoke_options
-        else
-          say "Build and push app image...", :magenta
-          invoke "mrsk:cli:build:deliver", [], invoke_options
-        end
-
-        say "Ensure app can pass healthcheck...", :magenta
-        invoke "mrsk:cli:healthcheck:perform", [], invoke_options
-
-        say "Detect stale containers...", :magenta
-        invoke "mrsk:cli:app:stale_containers", [], invoke_options
-
-        hold_lock_on_error do
-          invoke "mrsk:cli:app:boot", [], invoke_options
-        end
-      end
-
-      audit_broadcast "Redeployed #{service_version} in #{runtime.round} seconds" unless options[:skip_broadcast]
-    end
-  end
-
-  desc "rollback [VERSION]", "Rollback app to VERSION"
-  def rollback(version)
-    with_lock do
-      invoke_options = deploy_options
-
-      hold_lock_on_error do
-        MRSK.config.version = version
-        old_version = nil
-
-        if container_available?(version)
-          say "Start version #{version}, then wait #{MRSK.config.readiness_delay}s for app to boot before stopping the old version...", :magenta
-
-          on(MRSK.hosts) do
-            execute *MRSK.auditor.record("Tagging #{MRSK.config.absolute_image} as the latest image"), verbosity: :debug
-            execute *MRSK.app.tag_current_as_latest
-          end
-
-          on(MRSK.hosts) do |host|
-            roles = MRSK.roles_on(host)
-
-            roles.each do |role|
-              app = MRSK.app(role: role)
-              old_version = capture_with_info(*app.current_running_version).strip.presence
-
-              execute *app.start
-
-              if old_version
-                sleep MRSK.config.readiness_delay
-
-                execute *app.stop(version: old_version), raise_on_non_zero_exit: false
-              end
-            end
-          end
-
-          audit_broadcast "Rolled back #{service_version(Mrsk::Utils.abbreviate_version(old_version))} to #{service_version}" unless options[:skip_broadcast]
-        else
-          say "The app version '#{version}' is not available as a container (use 'mrsk app containers' for available versions)", :red
-        end
-      end
-    end
-  end
-
-  desc "details", "Show details about all containers"
-  def details
-    invoke "mrsk:cli:traefik:details"
-    invoke "mrsk:cli:app:details"
-    invoke "mrsk:cli:accessory:details", [ "all" ]
-  end
-
-  desc "audit", "Show audit log from servers"
-  def audit
-    on(MRSK.hosts) do |host|
-      puts_by_host host, capture_with_info(*MRSK.auditor.reveal)
-    end
-  end
-
-  desc "config", "Show combined config (including secrets!)"
-  def config
-    run_locally do
-      puts Mrsk::Utils.redacted(MRSK.config.to_h).to_yaml
-    end
-  end
-
-  desc "init", "Create config stub in config/deploy.yml and env stub in .env"
-  option :bundle, type: :boolean, default: false, desc: "Add MRSK to the Gemfile and create a bin/mrsk binstub"
-  def init
-    require "fileutils"
-
-    if (deploy_file = Pathname.new(File.expand_path("config/deploy.yml"))).exist?
-      puts "Config file already exists in config/deploy.yml (remove first to create a new one)"
-    else
-      FileUtils.mkdir_p deploy_file.dirname
-      FileUtils.cp_r Pathname.new(File.expand_path("templates/deploy.yml", __dir__)), deploy_file
-      puts "Created configuration file in config/deploy.yml"
-    end
-
-    unless (deploy_file = Pathname.new(File.expand_path(".env"))).exist?
-      FileUtils.cp_r Pathname.new(File.expand_path("templates/template.env", __dir__)), deploy_file
-      puts "Created .env file"
-    end
-
-    if options[:bundle]
-      if (binstub = Pathname.new(File.expand_path("bin/mrsk"))).exist?
-        puts "Binstub already exists in bin/mrsk (remove first to create a new one)"
-      else
-        puts "Adding MRSK to Gemfile and bundle..."
-        run_locally do
-          execute :bundle, :add, :mrsk
-          execute :bundle, :binstubs, :mrsk
-        end
-        puts "Created binstub file in bin/mrsk"
-      end
-    end
-  end
-
-  desc "envify", "Create .env by evaluating .env.erb (or .env.staging.erb -> .env.staging when using -d staging)"
-  def envify
-    if destination = options[:destination]
-      env_template_path = ".env.#{destination}.erb"
-      env_path          = ".env.#{destination}"
-    else
-      env_template_path = ".env.erb"
-      env_path          = ".env"
-    end
-
-    File.write(env_path, ERB.new(File.read(env_template_path)).result, perm: 0600)
-  end
-
-  desc "remove", "Remove Traefik, app, accessories, and registry session from servers"
-  option :confirmed, aliases: "-y", type: :boolean, default: false, desc: "Proceed without confirmation question"
-  def remove
-    with_lock do
-      if options[:confirmed] || ask("This will remove all containers and images. Are you sure?", limited_to: %w( y N ), default: "N") == "y"
-        invoke "mrsk:cli:traefik:remove", [], options.without(:confirmed)
-        invoke "mrsk:cli:app:remove", [], options.without(:confirmed)
-        invoke "mrsk:cli:accessory:remove", [ "all" ], options
-        invoke "mrsk:cli:registry:logout", [], options.without(:confirmed)
-      end
-    end
-  end
-
-  desc "version", "Show MRSK version"
-  def version
-    puts Mrsk::VERSION
-  end
-
-  desc "accessory", "Manage accessories (db/redis/search)"
-  subcommand "accessory", Mrsk::Cli::Accessory
-
-  desc "app", "Manage application"
-  subcommand "app", Mrsk::Cli::App
-
-  desc "build", "Build application image"
-  subcommand "build", Mrsk::Cli::Build
-
-  desc "healthcheck", "Healthcheck application"
-  subcommand "healthcheck", Mrsk::Cli::Healthcheck
-
-  desc "prune", "Prune old application images and containers"
-  subcommand "prune", Mrsk::Cli::Prune
-
-  desc "registry", "Login and -out of the image registry"
-  subcommand "registry", Mrsk::Cli::Registry
-
-  desc "server", "Bootstrap servers with curl and Docker"
-  subcommand "server", Mrsk::Cli::Server
-
-  desc "traefik", "Manage Traefik load balancer"
-  subcommand "traefik", Mrsk::Cli::Traefik
-
-  desc "lock", "Manage the deploy lock"
-  subcommand "lock", Mrsk::Cli::Lock
-
-  private
-    def container_available?(version)
-      begin
-        on(MRSK.hosts) do
-          MRSK.roles_on(host).each do |role|
-            container_id = capture_with_info(*MRSK.app(role: role).container_id_for_version(version))
-            raise "Container not found" unless container_id.present?
-          end
-        end
-      rescue SSHKit::Runner::ExecuteError => e
-        if e.message =~ /Container not found/
-          say "Error looking for container version #{version}: #{e.message}"
-          return false
-        else
-          raise
-        end
-      end
-
-      true
-    end
-
-    def deploy_options
-      { "version" => MRSK.config.version }.merge(options.without("skip_push"))
-    end
-
-    def service_version(version = MRSK.config.abbreviated_version)
-      [ MRSK.config.service, version ].compact.join("@")
-    end
-end

lib/mrsk/cli/prune.rb

@@ -1,29 +0,0 @@
-class Mrsk::Cli::Prune < Mrsk::Cli::Base
-  desc "all", "Prune unused images and stopped containers"
-  def all
-    with_lock do
-      containers
-      images
-    end
-  end
-
-  desc "images", "Prune dangling images"
-  def images
-    with_lock do
-      on(MRSK.hosts) do
-        execute *MRSK.auditor.record("Pruned images"), verbosity: :debug
-        execute *MRSK.prune.images
-      end
-    end
-  end
-
-  desc "containers", "Prune all stopped containers, except the last 5"
-  def containers
-    with_lock do
-      on(MRSK.hosts) do
-        execute *MRSK.auditor.record("Pruned containers"), verbosity: :debug
-        execute *MRSK.prune.containers
-      end
-    end
-  end
-end

lib/mrsk/cli/templates/template.env

@@ -1,2 +0,0 @@
-MRSK_REGISTRY_PASSWORD=change-this
-RAILS_MASTER_KEY=another-env

lib/mrsk/cli/traefik.rb

@@ -1,106 +0,0 @@
-class Mrsk::Cli::Traefik < Mrsk::Cli::Base
-  desc "boot", "Boot Traefik on servers"
-  def boot
-    with_lock do
-      on(MRSK.traefik_hosts) do
-        execute *MRSK.registry.login
-        execute *MRSK.traefik.run, raise_on_non_zero_exit: false
-      end
-    end
-  end
-
-  desc "reboot", "Reboot Traefik on servers (stop container, remove container, start new container)"
-  def reboot
-    with_lock do
-      stop
-      remove_container
-      boot
-    end
-  end
-
-  desc "start", "Start existing Traefik container on servers"
-  def start
-    with_lock do
-      on(MRSK.traefik_hosts) do
-        execute *MRSK.auditor.record("Started traefik"), verbosity: :debug
-        execute *MRSK.traefik.start, raise_on_non_zero_exit: false
-      end
-    end
-  end
-
-  desc "stop", "Stop existing Traefik container on servers"
-  def stop
-    with_lock do
-      on(MRSK.traefik_hosts) do
-        execute *MRSK.auditor.record("Stopped traefik"), verbosity: :debug
-        execute *MRSK.traefik.stop, raise_on_non_zero_exit: false
-      end
-    end
-  end
-
-  desc "restart", "Restart existing Traefik container on servers"
-  def restart
-    with_lock do
-      stop
-      start
-    end
-  end
-
-  desc "details", "Show details about Traefik container from servers"
-  def details
-    on(MRSK.traefik_hosts) { |host| puts_by_host host, capture_with_info(*MRSK.traefik.info), type: "Traefik" }
-  end
-
-  desc "logs", "Show log lines from Traefik on servers"
-  option :since, aliases: "-s", desc: "Show logs since timestamp (e.g. 2013-01-02T13:23:37Z) or relative (e.g. 42m for 42 minutes)"
-  option :lines, type: :numeric, aliases: "-n", desc: "Number of log lines to pull from each server"
-  option :grep, aliases: "-g", desc: "Show lines with grep match only (use this to fetch specific requests by id)"
-  option :follow, aliases: "-f", desc: "Follow logs on primary server (or specific host set by --hosts)"
-  def logs
-    grep = options[:grep]
-
-    if options[:follow]
-      run_locally do
-        info "Following logs on #{MRSK.primary_host}..."
-        info MRSK.traefik.follow_logs(host: MRSK.primary_host, grep: grep)
-        exec MRSK.traefik.follow_logs(host: MRSK.primary_host, grep: grep)
-      end
-    else
-      since = options[:since]
-      lines = options[:lines].presence || ((since || grep) ? nil : 100) # Default to 100 lines if since or grep isn't set
-
-      on(MRSK.traefik_hosts) do |host|
-        puts_by_host host, capture(*MRSK.traefik.logs(since: since, lines: lines, grep: grep)), type: "Traefik"
-      end
-    end
-  end
-
-  desc "remove", "Remove Traefik container and image from servers"
-  def remove
-    with_lock do
-      stop
-      remove_container
-      remove_image
-    end
-  end
-
-  desc "remove_container", "Remove Traefik container from servers", hide: true
-  def remove_container
-    with_lock do
-      on(MRSK.traefik_hosts) do
-        execute *MRSK.auditor.record("Removed traefik container"), verbosity: :debug
-        execute *MRSK.traefik.remove_container
-      end
-    end
-  end
-
-  desc "remove_image", "Remove Traefik image from servers", hide: true
-  def remove_image
-    with_lock do
-      on(MRSK.traefik_hosts) do
-        execute *MRSK.auditor.record("Removed traefik image"), verbosity: :debug
-        execute *MRSK.traefik.remove_image
-      end
-    end
-  end
-end

lib/mrsk/commands.rb

@@ -1,2 +0,0 @@
-module Mrsk::Commands
-end

lib/mrsk/commands/auditor.rb

@@ -1,57 +0,0 @@
-require "active_support/core_ext/time/conversions"
-
-class Mrsk::Commands::Auditor < Mrsk::Commands::Base
-  attr_reader :role
-
-  def initialize(config, role: nil)
-    super(config)
-    @role = role
-  end
-
-  # Runs remotely
-  def record(line)
-    append \
-      [ :echo, tagged_record_line(line) ],
-      audit_log_file
-  end
-
-  # Runs locally
-  def broadcast(line)
-    if broadcast_cmd = config.audit_broadcast_cmd
-      [ broadcast_cmd, tagged_broadcast_line(line) ]
-    end
-  end
-
-  def reveal
-    [ :tail, "-n", 50, audit_log_file ]
-  end
-
-  private
-    def audit_log_file
-      [ "mrsk", config.service, config.destination, "audit.log" ].compact.join("-")
-    end
-
-    def tagged_record_line(line)
-      tagged_line recorded_at_tag, performer_tag, role_tag, line
-    end
-
-    def tagged_broadcast_line(line)
-      tagged_line performer_tag, role_tag, line
-    end
-
-    def tagged_line(*tags_and_line)
-      "'#{tags_and_line.compact.join(" ")}'"
-    end
-
-    def recorded_at_tag
-      "[#{Time.now.to_fs(:db)}]"
-    end
-
-    def performer_tag
-      "[#{`whoami`.strip}]"
-    end
-
-    def role_tag
-      "[#{role}]" if role
-    end
-end

lib/mrsk/commands/builder.rb

@@ -1,56 +0,0 @@
-class Mrsk::Commands::Builder < Mrsk::Commands::Base
-  delegate :create, :remove, :push, :clean, :pull, :info, to: :target
-
-  def name
-    target.class.to_s.remove("Mrsk::Commands::Builder::").underscore.inquiry
-  end
-
-  def target
-    case
-    when config.builder && config.builder["multiarch"] == false
-      native
-    when config.builder && config.builder["local"] && config.builder["remote"]
-      multiarch_remote
-    when config.builder && config.builder["remote"]
-      native_remote
-    else
-      multiarch
-    end
-  end
-
-  def native
-    @native ||= Mrsk::Commands::Builder::Native.new(config)
-  end
-
-  def native_remote
-    @native ||= Mrsk::Commands::Builder::Native::Remote.new(config)
-  end
-
-  def multiarch
-    @multiarch ||= Mrsk::Commands::Builder::Multiarch.new(config)
-  end
-
-  def multiarch_remote
-    @multiarch_remote ||= Mrsk::Commands::Builder::Multiarch::Remote.new(config)
-  end
-
-
-  def ensure_local_dependencies_installed
-    if name.native?
-      ensure_local_docker_installed
-    else
-      combine \
-        ensure_local_docker_installed,
-        ensure_local_buildx_installed
-    end
-  end
-
-  private
-    def ensure_local_docker_installed
-      docker "--version"
-    end
-
-    def ensure_local_buildx_installed
-      docker :buildx, "version"
-    end
-end

lib/mrsk/commands/prune.rb

@@ -1,20 +0,0 @@
-require "active_support/duration"
-require "active_support/core_ext/numeric/time"
-
-class Mrsk::Commands::Prune < Mrsk::Commands::Base
-  def images
-    docker :image, :prune, "--all", "--force", "--filter", "label=service=#{config.service}", "--filter", "dangling=true"
-  end
-
-  def containers(keep_last: 5)
-    pipe \
-      docker(:ps, "-q", "-a", "--filter", "label=service=#{config.service}", *stopped_containers_filters),
-      "tail -n +#{keep_last + 1}",
-      "while read container_id; do docker rm $container_id; done"
-  end
-
-  private
-    def stopped_containers_filters
-      [ "created", "exited", "dead" ].flat_map { |status| ["--filter", "status=#{status}"] }
-    end
-end

lib/mrsk/sshkit_with_ext.rb

@@ -1,12 +0,0 @@
-require "sshkit"
-require "sshkit/dsl"
-
-class SSHKit::Backend::Abstract
-  def capture_with_info(*args, **kwargs)
-    capture(*args, **kwargs, verbosity: Logger::INFO)
-  end
-
-  def puts_by_host(host, output, type: "App")
-    puts "#{type} Host: #{host}\n#{output}\n\n"
-  end
-end

lib/mrsk/version.rb

@@ -1,3 +0,0 @@
-module Mrsk
-  VERSION = "0.12.0"
-end

test/cli/accessory_test.rb

@@ -2,8 +2,8 @@ require_relative "cli_test_case"
 
 class CliAccessoryTest < CliTestCase
   test "boot" do
-    Mrsk::Cli::Accessory.any_instance.expects(:directories).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:directories).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:upload).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:upload).with("mysql")
 
     run_command("boot", "mysql").tap do |output|
       assert_match /docker login.*on 1.1.1.3/, output
@@ -12,10 +12,10 @@ class CliAccessoryTest < CliTestCase
   end
 
   test "boot all" do
-    Mrsk::Cli::Accessory.any_instance.expects(:directories).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:directories).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:upload).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:upload).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:directories).with("redis")
+    Kamal::Cli::Accessory.any_instance.expects(:directories).with("redis")
-    Mrsk::Cli::Accessory.any_instance.expects(:upload).with("redis")
+    Kamal::Cli::Accessory.any_instance.expects(:upload).with("redis")
 
     run_command("boot", "all").tap do |output|
       assert_match /docker login.*on 1.1.1.3/, output
@@ -40,9 +40,10 @@ class CliAccessoryTest < CliTestCase
   end
 
   test "reboot" do
-    Mrsk::Cli::Accessory.any_instance.expects(:stop).with("mysql")
+    Kamal::Commands::Registry.any_instance.expects(:login)
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_container).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:stop).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:boot).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_container).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:boot).with("mysql", login: false)
 
     run_command("reboot", "mysql")
   end
@@ -56,8 +57,8 @@ class CliAccessoryTest < CliTestCase
   end
 
   test "restart" do
-    Mrsk::Cli::Accessory.any_instance.expects(:stop).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:stop).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:start).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:start).with("mysql")
 
     run_command("restart", "mysql")
   end
@@ -102,23 +103,23 @@ class CliAccessoryTest < CliTestCase
   end
 
   test "remove with confirmation" do
-    Mrsk::Cli::Accessory.any_instance.expects(:stop).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:stop).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_container).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_container).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_image).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_image).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_service_directory).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_service_directory).with("mysql")
 
     run_command("remove", "mysql", "-y")
   end
 
   test "remove all with confirmation" do
-    Mrsk::Cli::Accessory.any_instance.expects(:stop).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:stop).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_container).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_container).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_image).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_image).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_service_directory).with("mysql")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_service_directory).with("mysql")
-    Mrsk::Cli::Accessory.any_instance.expects(:stop).with("redis")
+    Kamal::Cli::Accessory.any_instance.expects(:stop).with("redis")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_container).with("redis")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_container).with("redis")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_image).with("redis")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_image).with("redis")
-    Mrsk::Cli::Accessory.any_instance.expects(:remove_service_directory).with("redis")
+    Kamal::Cli::Accessory.any_instance.expects(:remove_service_directory).with("redis")
 
     run_command("remove", "all", "-y")
   end
@@ -137,6 +138,6 @@ class CliAccessoryTest < CliTestCase
 
   private
     def run_command(*command)
-      stdouted { Mrsk::Cli::Accessory.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
+      stdouted { Kamal::Cli::Accessory.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
     end
 end

test/cli/app_test.rb

@@ -2,24 +2,19 @@ require_relative "cli_test_case"
 
 class CliAppTest < CliTestCase
   test "boot" do
-    SSHKit::Backend::Abstract.any_instance.stubs(:capture_with_info).returns("123") # old version
+    stub_running
-
-    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-    .with(:docker, :container, :ls, "--all", "--filter", "name=^app-web-latest$", "--quiet", "|", :xargs, :docker, :inspect, "--format", "'{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}'")
-    .returns("running") # health check
-
     run_command("boot").tap do |output|
       assert_match "docker tag dhh/app:latest dhh/app:latest", output
-      assert_match "docker run --detach --restart unless-stopped", output
+      assert_match /docker run --detach --restart unless-stopped --name app-web-latest --hostname 1.1.1.1-[0-9a-f]{12} /, output
       assert_match "docker container ls --all --filter name=^app-web-123$ --quiet | xargs docker stop", output
     end
   end
 
   test "boot will rename if same version is already running" do
-    run_command("details") # Preheat MRSK const
+    run_command("details") # Preheat Kamal const
 
     SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-      .with(:docker, :container, :ls, "--all", "--filter", "name=^app-web-latest$", "--quiet", raise_on_non_zero_exit: false)
+      .with(:docker, :container, :ls, "--filter", "name=^app-web-latest$", "--quiet", raise_on_non_zero_exit: false)
       .returns("12345678") # running version
 
     SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
@@ -27,13 +22,13 @@ class CliAppTest < CliTestCase
       .returns("running") # health check
 
     SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--filter", "status=running", "--latest", "--format", "\"{{.Names}}\"", "|", "grep -oE \"\\-[^-]+$\"", "|", "cut -c 2-", raise_on_non_zero_exit: false)
+      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--filter", "status=running", "--filter", "status=restarting", "--latest", "--format", "\"{{.Names}}\"", "|", "while read line; do echo ${line#app-web-}; done", raise_on_non_zero_exit: false)
       .returns("123") # old version
 
     run_command("boot").tap do |output|
       assert_match /Renaming container .* to .* as already deployed on 1.1.1.1/, output # Rename
-      assert_match /docker rename .* .*/, output
+      assert_match /docker rename app-web-latest app-web-latest_replaced_[0-9a-f]{16}/, output
-      assert_match "docker run --detach --restart unless-stopped", output
+      assert_match /docker run --detach --restart unless-stopped --name app-web-latest --hostname 1.1.1.1-[0-9a-f]{12} /, output
       assert_match "docker container ls --all --filter name=^app-web-123$ --quiet | xargs docker stop", output
     end
   ensure
@@ -41,15 +36,27 @@ class CliAppTest < CliTestCase
   end
 
   test "boot uses group strategy when specified" do
-    Mrsk::Cli::App.any_instance.stubs(:on).with("1.1.1.1").twice # acquire & release lock
+    Kamal::Cli::App.any_instance.stubs(:on).with("1.1.1.1").twice # acquire & release lock
-    Mrsk::Cli::App.any_instance.stubs(:on).with([ "1.1.1.1" ]) # tag container
+    Kamal::Cli::App.any_instance.stubs(:on).with([ "1.1.1.1" ]) # tag container
 
     # Strategy is used when booting the containers
-    Mrsk::Cli::App.any_instance.expects(:on).with([ "1.1.1.1" ], in: :groups, limit: 3, wait: 2).with_block_given
+    Kamal::Cli::App.any_instance.expects(:on).with([ "1.1.1.1" ], in: :groups, limit: 3, wait: 2).with_block_given
 
     run_command("boot", config: :with_boot_strategy)
   end
 
+  test "boot errors leave lock in place" do
+    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "version" => "999" }
+
+    Kamal::Cli::App.any_instance.expects(:using_version).raises(RuntimeError)
+
+    assert !KAMAL.holding_lock?
+    assert_raises(RuntimeError) do
+      stderred { run_command("boot") }
+    end
+    assert KAMAL.holding_lock?
+  end
+
   test "start" do
     run_command("start").tap do |output|
       assert_match "docker start app-web-999", output
@@ -58,13 +65,13 @@ class CliAppTest < CliTestCase
 
   test "stop" do
     run_command("stop").tap do |output|
-      assert_match "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker stop", output
+      assert_match "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker stop", output
     end
   end
 
   test "stale_containers" do
     SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--format", "\"{{.Names}}\"", "|", "grep -oE \"\\-[^-]+$\"", "|", "cut -c 2-", raise_on_non_zero_exit: false)
+      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--format", "\"{{.Names}}\"", "|", "while read line; do echo ${line#app-web-}; done", raise_on_non_zero_exit: false)
       .returns("12345678\n87654321")
 
     run_command("stale_containers").tap do |output|
@@ -74,7 +81,7 @@ class CliAppTest < CliTestCase
 
   test "stop stale_containers" do
     SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--format", "\"{{.Names}}\"", "|", "grep -oE \"\\-[^-]+$\"", "|", "cut -c 2-", raise_on_non_zero_exit: false)
+      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--format", "\"{{.Names}}\"", "|", "while read line; do echo ${line#app-web-}; done", raise_on_non_zero_exit: false)
       .returns("12345678\n87654321")
 
     run_command("stale_containers", "--stop").tap do |output|
@@ -91,7 +98,7 @@ class CliAppTest < CliTestCase
 
   test "remove" do
     run_command("remove").tap do |output|
-      assert_match /#{Regexp.escape("docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker stop")}/, output
+      assert_match /#{Regexp.escape("docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker stop")}/, output
       assert_match /#{Regexp.escape("docker container prune --force --filter label=service=app")}/, output
       assert_match /#{Regexp.escape("docker image prune --all --force --filter label=service=app")}/, output
     end
@@ -123,7 +130,7 @@ class CliAppTest < CliTestCase
 
   test "exec with reuse" do
     run_command("exec", "--reuse", "ruby -v").tap do |output|
-      assert_match "docker ps --filter label=service=app --filter status=running --latest --format \"{{.Names}}\" | grep -oE \"\\-[^-]+$\" | cut -c 2-", output # Get current version
+      assert_match "docker ps --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest --format \"{{.Names}}\" | while read line; do echo ${line#app-web-}; done", output # Get current version
       assert_match "docker exec app-web-999 ruby -v", output
     end
   end
@@ -142,33 +149,41 @@ class CliAppTest < CliTestCase
 
   test "logs" do
     SSHKit::Backend::Abstract.any_instance.stubs(:exec)
-      .with("ssh -t root@1.1.1.1 'docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest| xargs docker logs --timestamps --tail 10 2>&1'")
+      .with("ssh -t root@1.1.1.1 'docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest| xargs docker logs --timestamps --tail 10 2>&1'")
 
-    assert_match "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --tail 100 2>&1", run_command("logs")
+    assert_match "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --tail 100 2>&1", run_command("logs")
   end
 
   test "logs with follow" do
     SSHKit::Backend::Abstract.any_instance.stubs(:exec)
-      .with("ssh -t root@1.1.1.1 'docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --timestamps --tail 10 --follow 2>&1'")
+      .with("ssh -t root@1.1.1.1 'docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --timestamps --tail 10 --follow 2>&1'")
 
-    assert_match "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --timestamps --tail 10 --follow 2>&1", run_command("logs", "--follow")
+    assert_match "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --timestamps --tail 10 --follow 2>&1", run_command("logs", "--follow")
   end
 
   test "version" do
     run_command("version").tap do |output|
-      assert_match "docker ps --filter label=service=app --filter status=running --latest --format \"{{.Names}}\" | grep -oE \"\\-[^-]+$\" | cut -c 2-", output
+      assert_match "docker ps --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest --format \"{{.Names}}\" | while read line; do echo ${line#app-web-}; done", output
     end
   end
 
 
   test "version through main" do
-    stdouted { Mrsk::Cli::Main.start(["app", "version", "-c", "test/fixtures/deploy_with_accessories.yml", "--hosts", "1.1.1.1"]) }.tap do |output|
+    stdouted { Kamal::Cli::Main.start(["app", "version", "-c", "test/fixtures/deploy_with_accessories.yml", "--hosts", "1.1.1.1"]) }.tap do |output|
-      assert_match "docker ps --filter label=service=app --filter status=running --latest --format \"{{.Names}}\" | grep -oE \"\\-[^-]+$\" | cut -c 2-", output
+      assert_match "docker ps --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest --format \"{{.Names}}\" | while read line; do echo ${line#app-web-}; done", output
     end
   end
 
   private
     def run_command(*command, config: :with_accessories)
-      stdouted { Mrsk::Cli::App.start([*command, "-c", "test/fixtures/deploy_#{config}.yml", "--hosts", "1.1.1.1"]) }
+      stdouted { Kamal::Cli::App.start([*command, "-c", "test/fixtures/deploy_#{config}.yml", "--hosts", "1.1.1.1"]) }
+    end
+
+    def stub_running
+      SSHKit::Backend::Abstract.any_instance.stubs(:capture_with_info).returns("123") # old version
+
+      SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
+        .with(:docker, :container, :ls, "--all", "--filter", "name=^app-web-latest$", "--quiet", "|", :xargs, :docker, :inspect, "--format", "'{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}'")
+        .returns("running") # health check
     end
 end

test/cli/build_test.rb

@@ -2,24 +2,30 @@ require_relative "cli_test_case"
 
 class CliBuildTest < CliTestCase
   test "deliver" do
-    Mrsk::Cli::Build.any_instance.expects(:push)
+    Kamal::Cli::Build.any_instance.expects(:push)
-    Mrsk::Cli::Build.any_instance.expects(:pull)
+    Kamal::Cli::Build.any_instance.expects(:pull)
 
     run_command("deliver")
   end
 
   test "push" do
-    Mrsk::Cli::Build.any_instance.stubs(:verify_local_dependencies).returns(true)
+    Kamal::Commands::Hook.any_instance.stubs(:hook_exists?).returns(true)
+    hook_variables = { version: 999, service_version: "app@999", hosts: "1.1.1.1,1.1.1.2,1.1.1.3,1.1.1.4", command: "build", subcommand: "push" }
+
     run_command("push").tap do |output|
-      assert_match /docker buildx build --push --platform linux\/amd64,linux\/arm64 --builder mrsk-app-multiarch -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile \. as .*@localhost/, output
+      assert_hook_ran "pre-build", output, **hook_variables
+      assert_match /docker --version && docker buildx version/, output
+      assert_match /docker buildx build --push --platform linux\/amd64,linux\/arm64 --builder kamal-app-multiarch -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile \. as .*@localhost/, output
     end
   end
 
   test "push without builder" do
     stub_locking
-    Mrsk::Cli::Build.any_instance.stubs(:verify_local_dependencies).returns(true)
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
-      .with { |arg| arg == :docker }
+      .with(:docker, "--version", "&&", :docker, :buildx, "version")
+
+    SSHKit::Backend::Abstract.any_instance.stubs(:execute)
+      .with { |*args| args[0..1] == [:docker, :buildx] }
       .raises(SSHKit::Command::Failed.new("no builder"))
       .then
       .returns(true)
@@ -29,6 +35,24 @@ class CliBuildTest < CliTestCase
     end
   end
 
+  test "push with no buildx plugin" do
+    stub_locking
+    SSHKit::Backend::Abstract.any_instance.stubs(:execute)
+      .with(:docker, "--version", "&&", :docker, :buildx, "version")
+      .raises(SSHKit::Command::Failed.new("no buildx"))
+
+    Kamal::Commands::Builder.any_instance.stubs(:native_and_local?).returns(false)
+    assert_raises(Kamal::Cli::Build::BuildError) { run_command("push") }
+  end
+
+  test "push pre-build hook failure" do
+    fail_hook("pre-build")
+
+    assert_raises(Kamal::Cli::HookError) { run_command("push") }
+
+    assert @executions.none? { |args| args[0..2] == [:docker, :buildx, :build] }
+  end
+
   test "pull" do
     run_command("pull").tap do |output|
       assert_match /docker image rm --force dhh\/app:999/, output
@@ -38,7 +62,7 @@ class CliBuildTest < CliTestCase
 
   test "create" do
     run_command("create").tap do |output|
-      assert_match /docker buildx create --use --name mrsk-app-multiarch/, output
+      assert_match /docker buildx create --use --name kamal-app-multiarch/, output
     end
   end
 
@@ -55,7 +79,7 @@ class CliBuildTest < CliTestCase
 
   test "remove" do
     run_command("remove").tap do |output|
-      assert_match /docker buildx rm mrsk-app-multiarch/, output
+      assert_match /docker buildx rm kamal-app-multiarch/, output
     end
   end
 
@@ -70,32 +94,15 @@ class CliBuildTest < CliTestCase
     end
   end
 
-  test "verify local dependencies" do
-    Mrsk::Commands::Builder.any_instance.stubs(:name).returns("remote".inquiry)
-
-    run_command("verify_local_dependencies").tap do |output|
-      assert_match /docker --version && docker buildx version/, output
-    end
-  end
-
-  test "verify local dependencies with no buildx plugin" do
-    SSHKit::Backend::Abstract.any_instance.stubs(:execute)
-      .with(:docker, "--version", "&&", :docker, :buildx, "version")
-      .raises(SSHKit::Command::Failed.new("no buildx"))
-
-    Mrsk::Commands::Builder.any_instance.stubs(:native_and_local?).returns(false)
-    assert_raises(Mrsk::Cli::Build::BuildError) { run_command("verify_local_dependencies") }
-  end
-
   private
     def run_command(*command)
-      stdouted { Mrsk::Cli::Build.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
+      stdouted { Kamal::Cli::Build.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
     end
 
-    def stub_locking
+    def stub_dependency_checks
       SSHKit::Backend::Abstract.any_instance.stubs(:execute)
-        .with { |arg1, arg2| arg1 == :mkdir && arg2 == :mrsk_lock }
+        .with(:docker, "--version", "&&", :docker, :buildx, "version")
       SSHKit::Backend::Abstract.any_instance.stubs(:execute)
-        .with { |arg1, arg2| arg1 == :rm && arg2 == "mrsk_lock/details" }
+        .with { |*args| args[0..1] == [:docker, :buildx] }
     end
 end

test/cli/cli_test_case.rb

@@ -1,14 +1,12 @@
 require "test_helper"
 
 class CliTestCase < ActiveSupport::TestCase
-  include ActiveSupport::Testing::Stream
-
   setup do
     ENV["VERSION"]             = "999"
     ENV["RAILS_MASTER_KEY"]    = "123"
     ENV["MYSQL_ROOT_PASSWORD"] = "secret123"
-    Object.send(:remove_const, :MRSK)
+    Object.send(:remove_const, :KAMAL)
-    Object.const_set(:MRSK, Mrsk::Commander.new)
+    Object.const_set(:KAMAL, Kamal::Commander.new)
   end
 
   teardown do
@@ -16,4 +14,43 @@ class CliTestCase < ActiveSupport::TestCase
     ENV.delete("MYSQL_ROOT_PASSWORD")
     ENV.delete("VERSION")
   end
+
+  private
+    def fail_hook(hook)
+      @executions = []
+      Kamal::Commands::Hook.any_instance.stubs(:hook_exists?).returns(true)
+
+      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
+        .with { |*args| @executions << args; args != [".kamal/hooks/#{hook}"] }
+      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
+        .with { |*args| args.first == ".kamal/hooks/#{hook}" }
+        .raises(SSHKit::Command::Failed.new("failed"))
+    end
+
+    def stub_locking
+      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
+        .with { |arg1, arg2| arg1 == :mkdir && arg2 == "kamal_lock-app" }
+      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
+        .with { |arg1, arg2| arg1 == :rm && arg2 == "kamal_lock-app/details" }
+    end
+
+    def assert_hook_ran(hook, output, version:, service_version:, hosts:, command:, subcommand: nil, runtime: nil)
+      performer = `whoami`.strip
+
+      assert_match "Running the #{hook} hook...\n", output
+
+      expected = %r{Running\s/usr/bin/env\s\.kamal/hooks/#{hook}\sas\s#{performer}@localhost\n\s
+        DEBUG\s\[[0-9a-f]*\]\sCommand:\s\(\sexport\s
+        KAMAL_RECORDED_AT=\"\d\d\d\d-\d\d-\d\dT\d\d:\d\d:\d\dZ\"\s
+        KAMAL_PERFORMER=\"#{performer}\"\s
+        KAMAL_VERSION=\"#{version}\"\s
+        KAMAL_SERVICE_VERSION=\"#{service_version}\"\s
+        KAMAL_HOSTS=\"#{hosts}\"\s
+        KAMAL_COMMAND=\"#{command}\"\s
+        #{"KAMAL_SUBCOMMAND=\\\"#{subcommand}\\\"\\s" if subcommand}
+        #{"KAMAL_RUNTIME=\\\"#{runtime}\\\"\\s" if runtime}
+        ;\s/usr/bin/env\s\.kamal/hooks/#{hook} }x
+
+      assert_match expected, output
+    end
 end

test/cli/healthcheck_test.rb

@@ -5,12 +5,12 @@ class CliHealthcheckTest < CliTestCase
     # Prevent expected failures from outputting to terminal
     Thread.report_on_exception = false
 
-    Mrsk::Utils::HealthcheckPoller.stubs(:sleep) # No sleeping when retrying
+    Kamal::Utils::HealthcheckPoller.stubs(:sleep) # No sleeping when retrying
 
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
       .with(:docker, :container, :ls, "--all", "--filter", "name=^healthcheck-app-999$", "--quiet", "|", :xargs, :docker, :stop, raise_on_non_zero_exit: false)
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
-      .with(:docker, :run, "--detach", "--name", "healthcheck-app-999", "--publish", "3999:3000", "--label", "service=healthcheck-app", "-e", "MRSK_CONTAINER_NAME=\"healthcheck-app\"", "--health-cmd", "\"curl -f http://localhost:3000/up || exit 1\"", "--health-interval", "\"1s\"", "dhh/app:999")
+      .with(:docker, :run, "--detach", "--name", "healthcheck-app-999", "--publish", "3999:3000", "--label", "service=healthcheck-app", "-e", "KAMAL_CONTAINER_NAME=\"healthcheck-app\"", "--health-cmd", "\"curl -f http://localhost:3000/up || exit 1\"", "--health-interval", "\"1s\"", "dhh/app:999")
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
       .with(:docker, :container, :ls, "--all", "--filter", "name=^healthcheck-app-999$", "--quiet", "|", :xargs, :docker, :container, :rm, raise_on_non_zero_exit: false)
 
@@ -34,12 +34,12 @@ class CliHealthcheckTest < CliTestCase
     # Prevent expected failures from outputting to terminal
     Thread.report_on_exception = false
 
-    Mrsk::Utils::HealthcheckPoller.stubs(:sleep) # No sleeping when retrying
+    Kamal::Utils::HealthcheckPoller.stubs(:sleep) # No sleeping when retrying
 
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
       .with(:docker, :container, :ls, "--all", "--filter", "name=^healthcheck-app-999$", "--quiet", "|", :xargs, :docker, :stop, raise_on_non_zero_exit: false)
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
-      .with(:docker, :run, "--detach", "--name", "healthcheck-app-999", "--publish", "3999:3000", "--label", "service=healthcheck-app", "-e", "MRSK_CONTAINER_NAME=\"healthcheck-app\"", "--health-cmd", "\"curl -f http://localhost:3000/up || exit 1\"", "--health-interval", "\"1s\"", "dhh/app:999")
+      .with(:docker, :run, "--detach", "--name", "healthcheck-app-999", "--publish", "3999:3000", "--label", "service=healthcheck-app", "-e", "KAMAL_CONTAINER_NAME=\"healthcheck-app\"", "--health-cmd", "\"curl -f http://localhost:3000/up || exit 1\"", "--health-interval", "\"1s\"", "dhh/app:999")
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
       .with(:docker, :container, :ls, "--all", "--filter", "name=^healthcheck-app-999$", "--quiet", "|", :xargs, :docker, :container, :rm, raise_on_non_zero_exit: false)
 
@@ -53,6 +53,11 @@ class CliHealthcheckTest < CliTestCase
       .with(:docker, :container, :ls, "--all", "--filter", "name=^healthcheck-app-999$", "--quiet", "|", :xargs, :docker, :logs, "--tail", 50, "2>&1")
       .returns("some log output")
 
+    # Capture container health log when failing
+    SSHKit::Backend::Abstract.any_instance.stubs(:capture_with_pretty_json)
+      .with(:docker, :container, :ls, "--all", "--filter", "name=^healthcheck-app-999$", "--quiet", "|", :xargs, :docker, :inspect, "--format",  "'{{json .State.Health}}'")
+      .returns('{"Status":"unhealthy","Log":[{"ExitCode": 1,"Output": "/bin/sh: 1: curl: not found\n"}]}"')
+
     exception = assert_raises do
       run_command("perform")
     end
@@ -61,6 +66,6 @@ class CliHealthcheckTest < CliTestCase
 
   private
     def run_command(*command)
-      stdouted { Mrsk::Cli::Healthcheck.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
+      stdouted { Kamal::Cli::Healthcheck.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
     end
 end

test/cli/lock_test.rb

@@ -15,6 +15,6 @@ class CliLockTest < CliTestCase
 
   private
     def run_command(*command)
-      stdouted { Mrsk::Cli::Lock.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
+      stdouted { Kamal::Cli::Lock.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
     end
 end

test/cli/main_test.rb

@@ -2,44 +2,50 @@ require_relative "cli_test_case"
 
 class CliMainTest < CliTestCase
   test "setup" do
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:server:bootstrap")
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:server:bootstrap")
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:accessory:boot", [ "all" ])
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:accessory:boot", [ "all" ])
-    Mrsk::Cli::Main.any_instance.expects(:deploy)
+    Kamal::Cli::Main.any_instance.expects(:deploy)
 
     run_command("setup")
   end
 
   test "deploy" do
-    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "skip_broadcast" => false, "version" => "999" }
+    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "version" => "999", "skip_hooks" => false }
 
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:registry:login", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:registry:login", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:build:deliver", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:build:deliver", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:traefik:boot", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:traefik:boot", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:healthcheck:perform", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:healthcheck:perform", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:stale_containers", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:stale_containers", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:boot", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:boot", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:prune:all", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:prune:all", [], invoke_options)
+
+    Kamal::Commands::Hook.any_instance.stubs(:hook_exists?).returns(true)
+    hook_variables = { version: 999, service_version: "app@999", hosts: "1.1.1.1,1.1.1.2", command: "deploy" }
 
     run_command("deploy").tap do |output|
+      assert_hook_ran "pre-connect", output, **hook_variables
       assert_match /Log into image registry/, output
       assert_match /Build and push app image/, output
+      assert_hook_ran "pre-deploy", output, **hook_variables
       assert_match /Ensure Traefik is running/, output
       assert_match /Ensure app can pass healthcheck/, output
       assert_match /Detect stale containers/, output
       assert_match /Prune old containers and images/, output
+      assert_hook_ran "post-deploy", output, **hook_variables, runtime: 0
     end
   end
 
   test "deploy with skip_push" do
-    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "skip_broadcast" => false, "version" => "999" }
+    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "version" => "999", "skip_hooks" => false }
 
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:registry:login", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:registry:login", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:build:pull", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:build:pull", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:traefik:boot", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:traefik:boot", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:healthcheck:perform", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:healthcheck:perform", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:stale_containers", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:stale_containers", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:boot", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:boot", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:prune:all", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:prune:all", [], invoke_options)
 
     run_command("deploy", "--skip_push").tap do |output|
       assert_match /Acquiring the deploy lock/, output
@@ -57,13 +63,13 @@ class CliMainTest < CliTestCase
     Thread.report_on_exception = false
 
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
-      .with { |*arg| arg[0..1] == [:mkdir, :mrsk_lock] }
+      .with { |*arg| arg[0..1] == [:mkdir, 'kamal_lock-app'] }
-      .raises(RuntimeError, "mkdir: cannot create directory ‘mrsk_lock’: File exists")
+      .raises(RuntimeError, "mkdir: cannot create directory ‘kamal_lock-app’: File exists")
 
-    SSHKit::Backend::Abstract.any_instance.expects(:execute)
+    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_debug)
-      .with(:stat, :mrsk_lock, ">", "/dev/null", "&&", :cat, "mrsk_lock/details", "|", :base64, "-d")
+      .with(:stat, 'kamal_lock-app', ">", "/dev/null", "&&", :cat, "kamal_lock-app/details", "|", :base64, "-d")
 
-    assert_raises(Mrsk::Cli::LockError) do
+    assert_raises(Kamal::Cli::LockError) do
       run_command("deploy")
     end
   end
@@ -72,7 +78,7 @@ class CliMainTest < CliTestCase
     Thread.report_on_exception = false
 
     SSHKit::Backend::Abstract.any_instance.stubs(:execute)
-      .with { |*arg| arg[0..1] == [:mkdir, :mrsk_lock] }
+      .with { |*arg| arg[0..1] == [:mkdir, 'kamal_lock-app'] }
       .raises(SocketError, "getaddrinfo: nodename nor servname provided, or not known")
 
     assert_raises(SSHKit::Runner::ExecuteError) do
@@ -80,58 +86,71 @@ class CliMainTest < CliTestCase
     end
   end
 
-  test "deploy errors during critical section leave lock in place" do
-    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "skip_broadcast" => false, "version" => "999" }
-
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:registry:login", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:build:deliver", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:stale_containers", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:traefik:boot", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:healthcheck:perform", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:boot", [], invoke_options).raises(RuntimeError)
-
-    assert !MRSK.holding_lock?
-    assert_raises(RuntimeError) do
-      stderred { run_command("deploy") }
-    end
-    assert MRSK.holding_lock?
-  end
-
   test "deploy errors during outside section leave remove lock" do
-    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "skip_broadcast" => false, "version" => "999" }
+    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "version" => "999", "skip_hooks" => false }
 
-    Mrsk::Cli::Main.any_instance.expects(:invoke)
+    Kamal::Cli::Main.any_instance.expects(:invoke)
-      .with("mrsk:cli:registry:login", [], invoke_options)
+      .with("kamal:cli:registry:login", [], invoke_options)
       .raises(RuntimeError)
 
-    assert !MRSK.holding_lock?
+    assert !KAMAL.holding_lock?
     assert_raises(RuntimeError) do
       stderred { run_command("deploy") }
     end
-    assert !MRSK.holding_lock?
+    assert !KAMAL.holding_lock?
+  end
+
+  test "deploy with skipped hooks" do
+    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "version" => "999", "skip_hooks" => true }
+
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:registry:login", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:build:deliver", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:traefik:boot", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:healthcheck:perform", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:stale_containers", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:boot", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:prune:all", [], invoke_options)
+
+    run_command("deploy", "--skip_hooks") do
+      refute_match /Running the post-deploy hook.../, output
+    end
+  end
+
+  test "deploy with missing secrets" do
+    assert_raises(KeyError) do
+      run_command("deploy", config_file: "deploy_with_secrets")
+    end
   end
 
   test "redeploy" do
-    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "skip_broadcast" => false, "version" => "999" }
+    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "version" => "999", "skip_hooks" => false }
 
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:build:deliver", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:build:deliver", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:healthcheck:perform", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:healthcheck:perform", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:stale_containers", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:stale_containers", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:boot", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:boot", [], invoke_options)
+
+    Kamal::Commands::Hook.any_instance.stubs(:hook_exists?).returns(true)
+
+    hook_variables = { version: 999, service_version: "app@999", hosts: "1.1.1.1,1.1.1.2", command: "redeploy" }
 
     run_command("redeploy").tap do |output|
+      assert_hook_ran "pre-connect", output, **hook_variables
       assert_match /Build and push app image/, output
+      assert_hook_ran "pre-deploy", output, **hook_variables
+      assert_match /Running the pre-deploy hook.../, output
       assert_match /Ensure app can pass healthcheck/, output
+      assert_hook_ran "post-deploy", output, **hook_variables, runtime: "0"
     end
   end
 
   test "redeploy with skip_push" do
-    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "skip_broadcast" => false, "version" => "999" }
+    invoke_options = { "config_file" => "test/fixtures/deploy_simple.yml", "version" => "999", "skip_hooks" => false }
 
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:build:pull", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:build:pull", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:healthcheck:perform", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:healthcheck:perform", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:stale_containers", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:stale_containers", [], invoke_options)
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:boot", [], invoke_options)
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:boot", [], invoke_options)
 
     run_command("redeploy", "--skip_push").tap do |output|
       assert_match /Pull app image/, output
@@ -142,7 +161,7 @@ class CliMainTest < CliTestCase
   test "rollback bad version" do
     Thread.report_on_exception = false
 
-    run_command("details") # Preheat MRSK const
+    run_command("details") # Preheat Kamal const
 
     run_command("rollback", "nonsense").tap do |output|
       assert_match /docker container ls --all --filter name=\^app-web-nonsense\$ --quiet/, output
@@ -151,50 +170,67 @@ class CliMainTest < CliTestCase
   end
 
   test "rollback good version" do
-    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
+    [ "web", "workers" ].each do |role|
-      .with(:docker, :container, :ls, "--all", "--filter", "name=^app-web-123$", "--quiet")
+      SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-      .returns("version-to-rollback\n").at_least_once
+        .with(:docker, :container, :ls, "--filter", "name=^app-#{role}-123$", "--quiet", raise_on_non_zero_exit: false)
-    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
+        .returns("").at_least_once
-      .with(:docker, :container, :ls, "--all", "--filter", "name=^app-workers-123$", "--quiet")
+      SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-      .returns("version-to-rollback\n").at_least_once
+        .with(:docker, :container, :ls, "--all", "--filter", "name=^app-#{role}-123$", "--quiet")
-    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
+        .returns("version-to-rollback\n").at_least_once
-      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--filter", "status=running", "--latest", "--format", "\"{{.Names}}\"", "|", "grep -oE \"\\-[^-]+$\"", "|", "cut -c 2-")
+      SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-      .returns("version-to-rollback\n").at_least_once
+        .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=#{role}", "--filter", "status=running", "--filter", "status=restarting", "--latest", "--format", "\"{{.Names}}\"", "|", "while read line; do echo ${line#app-#{role}-}; done", raise_on_non_zero_exit: false)
-    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
+        .returns("version-to-rollback\n").at_least_once
-      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=workers", "--filter", "status=running", "--latest", "--format", "\"{{.Names}}\"", "|", "grep -oE \"\\-[^-]+$\"", "|", "cut -c 2-")
+      SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
-      .returns("version-to-rollback\n").at_least_once
+        .with(:docker, :container, :ls, "--all", "--filter", "name=^app-#{role}-123$", "--quiet", "|", :xargs, :docker, :inspect, "--format", "'{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}'")
+        .returns("running").at_least_once # health check
+    end
 
+    Kamal::Commands::Hook.any_instance.stubs(:hook_exists?).returns(true)
+    hook_variables = { version: 123, service_version: "app@123", hosts: "1.1.1.1,1.1.1.2,1.1.1.3,1.1.1.4", command: "rollback" }
 
     run_command("rollback", "123", config_file: "deploy_with_accessories").tap do |output|
-      assert_match "Start version 123", output
+      assert_match "Start container with version 123", output
+      assert_hook_ran "pre-deploy", output, **hook_variables
       assert_match "docker tag dhh/app:123 dhh/app:latest", output
       assert_match "docker start app-web-123", output
       assert_match "docker container ls --all --filter name=^app-web-version-to-rollback$ --quiet | xargs docker stop", output, "Should stop the container that was previously running"
+      assert_hook_ran "post-deploy", output, **hook_variables, runtime: "0"
     end
   end
 
   test "rollback without old version" do
-    Mrsk::Cli::Main.any_instance.stubs(:container_available?).returns(true)
+    Kamal::Cli::Main.any_instance.stubs(:container_available?).returns(true)
-    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info).with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--filter", "status=running", "--latest", "--format", "\"{{.Names}}\"", "|", "grep -oE \"\\-[^-]+$\"", "|", "cut -c 2-").returns("").at_least_once
+
+    Kamal::Utils::HealthcheckPoller.stubs(:sleep)
+
+    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
+      .with(:docker, :container, :ls, "--filter", "name=^app-web-123$", "--quiet", raise_on_non_zero_exit: false)
+      .returns("").at_least_once
+    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
+      .with(:docker, :ps, "--filter", "label=service=app", "--filter", "label=role=web", "--filter", "status=running", "--filter", "status=restarting", "--latest", "--format", "\"{{.Names}}\"", "|", "while read line; do echo ${line#app-web-}; done", raise_on_non_zero_exit: false)
+      .returns("").at_least_once
+    SSHKit::Backend::Abstract.any_instance.expects(:capture_with_info)
+      .with(:docker, :container, :ls, "--all", "--filter", "name=^app-web-123$", "--quiet", "|", :xargs, :docker, :inspect, "--format", "'{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}'")
+      .returns("running").at_least_once # health check
 
     run_command("rollback", "123").tap do |output|
-      assert_match "Start version 123", output
+      assert_match "Start container with version 123", output
-      assert_match "docker start app-web-123", output
+      assert_match "docker start app-web-123 || docker run --detach --restart unless-stopped --name app-web-123", output
       assert_no_match "docker stop", output
     end
   end
 
   test "details" do
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:traefik:details")
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:traefik:details")
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:app:details")
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:app:details")
-    Mrsk::Cli::Main.any_instance.expects(:invoke).with("mrsk:cli:accessory:details", [ "all" ])
+    Kamal::Cli::Main.any_instance.expects(:invoke).with("kamal:cli:accessory:details", [ "all" ])
 
     run_command("details")
   end
 
   test "audit" do
     run_command("audit").tap do |output|
-      assert_match /tail -n 50 mrsk-app-audit.log on 1.1.1.1/, output
+      assert_match /tail -n 50 kamal-app-audit.log on 1.1.1.1/, output
       assert_match /App Host: 1.1.1.1/, output
     end
   end
@@ -239,9 +275,11 @@ class CliMainTest < CliTestCase
   end
 
   test "init" do
-    Pathname.any_instance.expects(:exist?).returns(false).twice
+    Pathname.any_instance.expects(:exist?).returns(false).times(3)
+    Pathname.any_instance.stubs(:mkpath)
     FileUtils.stubs(:mkdir_p)
     FileUtils.stubs(:cp_r)
+    FileUtils.stubs(:cp)
 
     run_command("init").tap do |output|
       assert_match /Created configuration file in config\/deploy.yml/, output
@@ -250,7 +288,7 @@ class CliMainTest < CliTestCase
   end
 
   test "init with existing config" do
-    Pathname.any_instance.expects(:exist?).returns(true).twice
+    Pathname.any_instance.expects(:exist?).returns(true).times(3)
 
     run_command("init").tap do |output|
       assert_match /Config file already exists in config\/deploy.yml \(remove first to create a new one\)/, output
@@ -258,28 +296,32 @@ class CliMainTest < CliTestCase
   end
 
   test "init with bundle option" do
-    Pathname.any_instance.expects(:exist?).returns(false).times(3)
+    Pathname.any_instance.expects(:exist?).returns(false).times(4)
+    Pathname.any_instance.stubs(:mkpath)
     FileUtils.stubs(:mkdir_p)
     FileUtils.stubs(:cp_r)
+    FileUtils.stubs(:cp)
 
     run_command("init", "--bundle").tap do |output|
       assert_match /Created configuration file in config\/deploy.yml/, output
       assert_match /Created \.env file/, output
-      assert_match /Adding MRSK to Gemfile and bundle/, output
+      assert_match /Adding Kamal to Gemfile and bundle/, output
-      assert_match /bundle add mrsk/, output
+      assert_match /bundle add kamal/, output
-      assert_match /bundle binstubs mrsk/, output
+      assert_match /bundle binstubs kamal/, output
-      assert_match /Created binstub file in bin\/mrsk/, output
+      assert_match /Created binstub file in bin\/kamal/, output
     end
   end
 
   test "init with bundle option and existing binstub" do
-    Pathname.any_instance.expects(:exist?).returns(true).times(3)
+    Pathname.any_instance.expects(:exist?).returns(true).times(4)
+    Pathname.any_instance.stubs(:mkpath)
     FileUtils.stubs(:mkdir_p)
     FileUtils.stubs(:cp_r)
+    FileUtils.stubs(:cp)
 
     run_command("init", "--bundle").tap do |output|
       assert_match /Config file already exists in config\/deploy.yml \(remove first to create a new one\)/, output
-      assert_match /Binstub already exists in bin\/mrsk \(remove first to create a new one\)/, output
+      assert_match /Binstub already exists in bin\/kamal \(remove first to create a new one\)/, output
     end
   end
 
@@ -322,12 +364,12 @@ class CliMainTest < CliTestCase
   end
 
   test "version" do
-    version = stdouted { Mrsk::Cli::Main.new.version }
+    version = stdouted { Kamal::Cli::Main.new.version }
-    assert_equal Mrsk::VERSION, version
+    assert_equal Kamal::VERSION, version
   end
 
   private
     def run_command(*command, config_file: "deploy_simple")
-      stdouted { Mrsk::Cli::Main.start([*command, "-c", "test/fixtures/#{config_file}.yml"]) }
+      stdouted { Kamal::Cli::Main.start([*command, "-c", "test/fixtures/#{config_file}.yml"]) }
     end
 end

test/cli/prune_test.rb

@@ -2,15 +2,16 @@ require_relative "cli_test_case"
 
 class CliPruneTest < CliTestCase
   test "all" do
-    Mrsk::Cli::Prune.any_instance.expects(:containers)
+    Kamal::Cli::Prune.any_instance.expects(:containers)
-    Mrsk::Cli::Prune.any_instance.expects(:images)
+    Kamal::Cli::Prune.any_instance.expects(:images)
 
     run_command("all")
   end
 
   test "images" do
     run_command("images").tap do |output|
-      assert_match /docker image prune --all --force --filter label=service=app --filter dangling=true on 1.1.1.\d/, output
+      assert_match "docker image prune --force --filter label=service=app --filter dangling=true on 1.1.1.", output
+      assert_match "docker image ls --filter label=service=app --format '{{.ID}} {{.Repository}}:{{.Tag}}' | grep -v -w \"$(docker container ls -a --format '{{.Image}}\\|' --filter label=service=app | tr -d '\\n')dhh/app:latest\\|dhh/app:<none>\" | while read image tag; do docker rmi $tag; done on 1.1.1.", output
     end
   end
 
@@ -22,6 +23,6 @@ class CliPruneTest < CliTestCase
 
   private
     def run_command(*command)
-      stdouted { Mrsk::Cli::Prune.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
+      stdouted { Kamal::Cli::Prune.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
     end
 end

test/cli/registry_test.rb

@@ -16,6 +16,6 @@ class CliRegistryTest < CliTestCase
 
   private
     def run_command(*command)
-      stdouted { Mrsk::Cli::Registry.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
+      stdouted { Kamal::Cli::Registry.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
     end
 end

test/cli/server_test.rb

@@ -11,7 +11,7 @@ class CliServerTest < CliTestCase
     SSHKit::Backend::Abstract.any_instance.expects(:execute).with(:docker, "-v", raise_on_non_zero_exit: false).returns(false).at_least_once
     SSHKit::Backend::Abstract.any_instance.expects(:execute).with('[ "${EUID:-$(id -u)}" -eq 0 ]', raise_on_non_zero_exit: false).returns(false).at_least_once
 
-    assert_raise RuntimeError, "Docker is not installed on 1.1.1.1, 1.1.1.3, 1.1.1.4, 1.1.1.2 and can't be automatically intalled without having root access and the `curl` command available. Install Docker manually: https://docs.docker.com/engine/install/" do
+    assert_raise RuntimeError, "Docker is not installed on 1.1.1.1, 1.1.1.3, 1.1.1.4, 1.1.1.2 and can't be automatically installed without having root access and the `curl` command available. Install Docker manually: https://docs.docker.com/engine/install/" do
       run_command("bootstrap")
     end
   end
@@ -30,6 +30,6 @@ class CliServerTest < CliTestCase
 
   private
     def run_command(*command)
-      stdouted { Mrsk::Cli::Server.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
+      stdouted { Kamal::Cli::Server.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
     end
 end

test/cli/traefik_test.rb

@@ -4,16 +4,24 @@ class CliTraefikTest < CliTestCase
   test "boot" do
     run_command("boot").tap do |output|
       assert_match "docker login", output
-      assert_match "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{Mrsk::Commands::Traefik::DEFAULT_IMAGE} --providers.docker --log.level=DEBUG", output
+      assert_match "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{Kamal::Commands::Traefik::DEFAULT_IMAGE} --providers.docker --log.level=\"DEBUG\"", output
     end
   end
 
   test "reboot" do
-    Mrsk::Cli::Traefik.any_instance.expects(:stop)
+    Kamal::Commands::Registry.any_instance.expects(:login).twice
-    Mrsk::Cli::Traefik.any_instance.expects(:remove_container)
-    Mrsk::Cli::Traefik.any_instance.expects(:boot)
 
-    run_command("reboot")
+    run_command("reboot").tap do |output|
+      assert_match "docker container stop traefik", output
+      assert_match "docker container prune --force --filter label=org.opencontainers.image.title=Traefik", output
+      assert_match "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{Kamal::Commands::Traefik::DEFAULT_IMAGE} --providers.docker --log.level=\"DEBUG\"", output
+    end
+  end
+
+  test "reboot --rolling" do
+    run_command("reboot", "--rolling").tap do |output|
+      assert_match "Running docker container prune --force --filter label=org.opencontainers.image.title=Traefik on 1.1.1.1", output.lines[3]
+    end
   end
 
   test "start" do
@@ -29,8 +37,8 @@ class CliTraefikTest < CliTestCase
   end
 
   test "restart" do
-    Mrsk::Cli::Traefik.any_instance.expects(:stop)
+    Kamal::Cli::Traefik.any_instance.expects(:stop)
-    Mrsk::Cli::Traefik.any_instance.expects(:start)
+    Kamal::Cli::Traefik.any_instance.expects(:start)
 
     run_command("restart")
   end
@@ -60,9 +68,9 @@ class CliTraefikTest < CliTestCase
   end
 
   test "remove" do
-    Mrsk::Cli::Traefik.any_instance.expects(:stop)
+    Kamal::Cli::Traefik.any_instance.expects(:stop)
-    Mrsk::Cli::Traefik.any_instance.expects(:remove_container)
+    Kamal::Cli::Traefik.any_instance.expects(:remove_container)
-    Mrsk::Cli::Traefik.any_instance.expects(:remove_image)
+    Kamal::Cli::Traefik.any_instance.expects(:remove_image)
 
     run_command("remove")
   end
@@ -81,6 +89,6 @@ class CliTraefikTest < CliTestCase
 
   private
     def run_command(*command)
-      stdouted { Mrsk::Cli::Traefik.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
+      stdouted { Kamal::Cli::Traefik.start([*command, "-c", "test/fixtures/deploy_with_accessories.yml"]) }
     end
 end

test/commander_test.rb

@@ -6,74 +6,74 @@ class CommanderTest < ActiveSupport::TestCase
   end
 
   test "lazy configuration" do
-    assert_equal Mrsk::Configuration, @mrsk.config.class
+    assert_equal Kamal::Configuration, @kamal.config.class
   end
 
   test "overwriting hosts" do
-    assert_equal [ "1.1.1.1", "1.1.1.2", "1.1.1.3", "1.1.1.4" ], @mrsk.hosts
+    assert_equal [ "1.1.1.1", "1.1.1.2", "1.1.1.3", "1.1.1.4" ], @kamal.hosts
 
-    @mrsk.specific_hosts = [ "1.1.1.1", "1.1.1.2" ]
+    @kamal.specific_hosts = [ "1.1.1.1", "1.1.1.2" ]
-    assert_equal [ "1.1.1.1", "1.1.1.2" ], @mrsk.hosts
+    assert_equal [ "1.1.1.1", "1.1.1.2" ], @kamal.hosts
   end
 
   test "filtering hosts by filtering roles" do
-    assert_equal [ "1.1.1.1", "1.1.1.2", "1.1.1.3", "1.1.1.4" ], @mrsk.hosts
+    assert_equal [ "1.1.1.1", "1.1.1.2", "1.1.1.3", "1.1.1.4" ], @kamal.hosts
 
-    @mrsk.specific_roles = [ "web" ]
+    @kamal.specific_roles = [ "web" ]
-    assert_equal [ "1.1.1.1", "1.1.1.2" ], @mrsk.hosts
+    assert_equal [ "1.1.1.1", "1.1.1.2" ], @kamal.hosts
   end
 
   test "filtering roles" do
-    assert_equal [ "web", "workers" ], @mrsk.roles.map(&:name)
+    assert_equal [ "web", "workers" ], @kamal.roles.map(&:name)
 
-    @mrsk.specific_roles = [ "workers" ]
+    @kamal.specific_roles = [ "workers" ]
-    assert_equal [ "workers" ], @mrsk.roles.map(&:name)
+    assert_equal [ "workers" ], @kamal.roles.map(&:name)
   end
 
   test "filtering roles by filtering hosts" do
-    assert_equal [ "web", "workers" ], @mrsk.roles.map(&:name)
+    assert_equal [ "web", "workers" ], @kamal.roles.map(&:name)
 
-    @mrsk.specific_hosts = [ "1.1.1.3" ]
+    @kamal.specific_hosts = [ "1.1.1.3" ]
-    assert_equal [ "workers" ], @mrsk.roles.map(&:name)
+    assert_equal [ "workers" ], @kamal.roles.map(&:name)
   end
 
   test "overwriting hosts with primary" do
-    assert_equal [ "1.1.1.1", "1.1.1.2", "1.1.1.3", "1.1.1.4" ], @mrsk.hosts
+    assert_equal [ "1.1.1.1", "1.1.1.2", "1.1.1.3", "1.1.1.4" ], @kamal.hosts
 
-    @mrsk.specific_primary!
+    @kamal.specific_primary!
-    assert_equal [ "1.1.1.1" ], @mrsk.hosts
+    assert_equal [ "1.1.1.1" ], @kamal.hosts
   end
 
   test "primary_host with specific hosts via role" do
-    @mrsk.specific_roles = "workers"
+    @kamal.specific_roles = "workers"
-    assert_equal "1.1.1.3", @mrsk.primary_host
+    assert_equal "1.1.1.3", @kamal.primary_host
   end
 
   test "roles_on" do
-    assert_equal [ "web" ], @mrsk.roles_on("1.1.1.1")
+    assert_equal [ "web" ], @kamal.roles_on("1.1.1.1")
-    assert_equal [ "workers" ], @mrsk.roles_on("1.1.1.3")
+    assert_equal [ "workers" ], @kamal.roles_on("1.1.1.3")
   end
 
   test "default group strategy" do
-    assert_empty @mrsk.boot_strategy
+    assert_empty @kamal.boot_strategy
   end
 
   test "specific limit group strategy" do
     configure_with(:deploy_with_boot_strategy)
 
-    assert_equal({ in: :groups, limit: 3, wait: 2 }, @mrsk.boot_strategy)
+    assert_equal({ in: :groups, limit: 3, wait: 2 }, @kamal.boot_strategy)
   end
 
   test "percentage-based group strategy" do
-    configure_with(:deploy_with_precentage_boot_strategy)
+    configure_with(:deploy_with_percentage_boot_strategy)
 
-    assert_equal({ in: :groups, limit: 1, wait: 2 }, @mrsk.boot_strategy)
+    assert_equal({ in: :groups, limit: 1, wait: 2 }, @kamal.boot_strategy)
   end
 
   private
     def configure_with(variant)
-      @mrsk = Mrsk::Commander.new.tap do |mrsk|
+      @kamal = Kamal::Commander.new.tap do |kamal|
-        mrsk.configure config_file: Pathname.new(File.expand_path("fixtures/#{variant}.yml", __dir__))
+        kamal.configure config_file: Pathname.new(File.expand_path("fixtures/#{variant}.yml", __dir__))
       end
     end
 end

test/commands/accessory_test.rb

@@ -146,6 +146,6 @@ class CommandsAccessoryTest < ActiveSupport::TestCase
 
   private
     def new_command(accessory)
-      Mrsk::Commands::Accessory.new(Mrsk::Configuration.new(@config), name: accessory)
+      Kamal::Commands::Accessory.new(Kamal::Configuration.new(@config), name: accessory)
     end
 end

test/commands/app_test.rb

@@ -13,15 +13,21 @@ class CommandsAppTest < ActiveSupport::TestCase
 
   test "run" do
     assert_equal \
-      "docker run --detach --restart unless-stopped --name app-web-999 -e MRSK_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      "docker run --detach --restart unless-stopped --name app-web-999 -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
       new_command.run.join(" ")
   end
 
+  test "run with hostname" do
+    assert_equal \
+      "docker run --detach --restart unless-stopped --name app-web-999 --hostname myhost -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      new_command.run(hostname: "myhost").join(" ")
+  end
+
   test "run with volumes" do
     @config[:volumes] = ["/local/path:/container/path" ]
 
     assert_equal \
-      "docker run --detach --restart unless-stopped --name app-web-999 -e MRSK_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --volume /local/path:/container/path --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      "docker run --detach --restart unless-stopped --name app-web-999 -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --volume /local/path:/container/path --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
       new_command.run.join(" ")
   end
 
@@ -29,7 +35,7 @@ class CommandsAppTest < ActiveSupport::TestCase
     @config[:healthcheck] = { "path" => "/healthz" }
 
     assert_equal \
-      "docker run --detach --restart unless-stopped --name app-web-999 -e MRSK_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/healthz || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      "docker run --detach --restart unless-stopped --name app-web-999 -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/healthz || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
       new_command.run.join(" ")
   end
 
@@ -37,7 +43,7 @@ class CommandsAppTest < ActiveSupport::TestCase
     @config[:healthcheck] = { "cmd" => "/bin/up" }
 
     assert_equal \
-      "docker run --detach --restart unless-stopped --name app-web-999 -e MRSK_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"/bin/up\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      "docker run --detach --restart unless-stopped --name app-web-999 -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"/bin/up\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
       new_command.run.join(" ")
   end
 
@@ -45,14 +51,14 @@ class CommandsAppTest < ActiveSupport::TestCase
     @config[:servers] = { "web" => { "hosts" => [ "1.1.1.1" ], "healthcheck" => { "cmd" => "/bin/healthy" } } }
 
     assert_equal \
-      "docker run --detach --restart unless-stopped --name app-web-999 -e MRSK_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"/bin/healthy\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      "docker run --detach --restart unless-stopped --name app-web-999 -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"/bin/healthy\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
       new_command.run.join(" ")
   end
 
   test "run with custom options" do
     @config[:servers] = { "web" => [ "1.1.1.1" ], "jobs" => { "hosts" => [ "1.1.1.2" ], "cmd" => "bin/jobs", "options" => { "mount" => "somewhere", "cap-add" => true } } }
     assert_equal \
-      "docker run --detach --restart unless-stopped --name app-jobs-999 -e MRSK_CONTAINER_NAME=\"app-jobs-999\" -e RAILS_MASTER_KEY=\"456\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"jobs\" --mount \"somewhere\" --cap-add dhh/app:999 bin/jobs",
+      "docker run --detach --restart unless-stopped --name app-jobs-999 -e KAMAL_CONTAINER_NAME=\"app-jobs-999\" -e RAILS_MASTER_KEY=\"456\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"jobs\" --mount \"somewhere\" --cap-add dhh/app:999 bin/jobs",
       new_command(role: "jobs").run.join(" ")
   end
 
@@ -60,7 +66,7 @@ class CommandsAppTest < ActiveSupport::TestCase
     @config[:logging] = { "driver" => "local", "options" => { "max-size" => "100m", "max-file" => "3" } }
 
     assert_equal \
-      "docker run --detach --restart unless-stopped --name app-web-999 -e MRSK_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-driver \"local\" --log-opt max-size=\"100m\" --log-opt max-file=\"3\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      "docker run --detach --restart unless-stopped --name app-web-999 -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-driver \"local\" --log-opt max-size=\"100m\" --log-opt max-file=\"3\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
       new_command.run.join(" ")
   end
 
@@ -77,16 +83,28 @@ class CommandsAppTest < ActiveSupport::TestCase
       new_command.start.join(" ")
   end
 
+  test "start_or_run" do
+    assert_equal \
+      "docker start app-web-999 || docker run --detach --restart unless-stopped --name app-web-999 -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      new_command.start_or_run.join(" ")
+  end
+
+  test "start_or_run with hostname" do
+    assert_equal \
+      "docker start app-web-999 || docker run --detach --restart unless-stopped --name app-web-999 --hostname myhost -e KAMAL_CONTAINER_NAME=\"app-web-999\" -e RAILS_MASTER_KEY=\"456\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --log-opt max-size=\"10m\" --label service=\"app\" --label role=\"web\" --label traefik.http.services.app-web.loadbalancer.server.scheme=\"http\" --label traefik.http.routers.app-web.rule=\"PathPrefix(\\`/\\`)\" --label traefik.http.middlewares.app-web-retry.retry.attempts=\"5\" --label traefik.http.middlewares.app-web-retry.retry.initialinterval=\"500ms\" --label traefik.http.routers.app-web.middlewares=\"app-web-retry@docker\" dhh/app:999",
+      new_command.start_or_run(hostname: "myhost").join(" ")
+  end
+
   test "stop" do
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker stop",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker stop",
       new_command.stop.join(" ")
   end
 
   test "stop with custom stop wait time" do
     @config[:stop_wait_time] = 30
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker stop -t 30",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker stop -t 30",
       new_command.stop.join(" ")
   end
 
@@ -112,37 +130,37 @@ class CommandsAppTest < ActiveSupport::TestCase
 
   test "logs" do
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs 2>&1",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs 2>&1",
       new_command.logs.join(" ")
 
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --since 5m 2>&1",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --since 5m 2>&1",
       new_command.logs(since: "5m").join(" ")
 
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --tail 100 2>&1",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --tail 100 2>&1",
       new_command.logs(lines: "100").join(" ")
 
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --since 5m --tail 100 2>&1",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --since 5m --tail 100 2>&1",
       new_command.logs(since: "5m", lines: "100").join(" ")
 
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs 2>&1 | grep 'my-id'",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs 2>&1 | grep 'my-id'",
       new_command.logs(grep: "my-id").join(" ")
 
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --since 5m 2>&1 | grep 'my-id'",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --since 5m 2>&1 | grep 'my-id'",
       new_command.logs(since: "5m", grep: "my-id").join(" ")
   end
 
   test "follow logs" do
     assert_match \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --timestamps --tail 10 --follow 2>&1",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --timestamps --tail 10 --follow 2>&1",
       new_command.follow_logs(host: "app-1")
 
     assert_match \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest | xargs docker logs --timestamps --tail 10 --follow 2>&1 | grep \"Completed\"",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest | xargs docker logs --timestamps --tail 10 --follow 2>&1 | grep \"Completed\"",
       new_command.follow_logs(host: "app-1", grep: "Completed")
   end
 
@@ -153,6 +171,13 @@ class CommandsAppTest < ActiveSupport::TestCase
       new_command.execute_in_new_container("bin/rails", "db:setup").join(" ")
   end
 
+  test "execute in new container with custom options" do
+    @config[:servers] = { "web" => { "hosts" => [ "1.1.1.1" ], "options" => { "mount" => "somewhere", "cap-add" => true } } }
+    assert_equal \
+      "docker run --rm -e RAILS_MASTER_KEY=\"456\" --mount \"somewhere\" --cap-add dhh/app:999 bin/rails db:setup",
+      new_command.execute_in_new_container("bin/rails", "db:setup").join(" ")
+  end
+
   test "execute in existing container" do
     assert_equal \
       "docker exec app-web-999 bin/rails db:setup",
@@ -164,6 +189,12 @@ class CommandsAppTest < ActiveSupport::TestCase
       new_command.execute_in_new_container_over_ssh("bin/rails", "c", host: "app-1")
   end
 
+  test "execute in new container with custom options over ssh" do
+    @config[:servers] = { "web" => { "hosts" => [ "1.1.1.1" ], "options" => { "mount" => "somewhere", "cap-add" => true } } }
+    assert_match %r|docker run -it --rm -e RAILS_MASTER_KEY=\"456\" --mount \"somewhere\" --cap-add dhh/app:999 bin/rails c|,
+      new_command.execute_in_new_container_over_ssh("bin/rails", "c", host: "app-1")
+  end
+
   test "execute in existing container over ssh" do
     assert_match %r|docker exec -it app-web-999 bin/rails c|,
       new_command.execute_in_existing_container_over_ssh("bin/rails", "c", host: "app-1")
@@ -193,17 +224,21 @@ class CommandsAppTest < ActiveSupport::TestCase
     assert_equal "ssh -J root@2.2.2.2 -t app@1.1.1.1 'ls'", new_command.run_over_ssh("ls", host: "1.1.1.1")
   end
 
+  test "run over ssh with proxy_command" do
+    @config[:ssh] = { "proxy_command" => "ssh -W %h:%p user@proxy-server" }
+    assert_equal "ssh -o ProxyCommand='ssh -W %h:%p user@proxy-server' -t root@1.1.1.1 'ls'", new_command.run_over_ssh("ls", host: "1.1.1.1")
+  end
 
   test "current_running_container_id" do
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --latest",
+      "docker ps --quiet --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest",
       new_command.current_running_container_id.join(" ")
   end
 
   test "current_running_container_id with destination" do
     @destination = "staging"
     assert_equal \
-      "docker ps --quiet --filter label=service=app --filter label=destination=staging --filter label=role=web --filter status=running --latest",
+      "docker ps --quiet --filter label=service=app --filter label=destination=staging --filter label=role=web --filter status=running --filter status=restarting --latest",
       new_command.current_running_container_id.join(" ")
   end
 
@@ -215,18 +250,18 @@ class CommandsAppTest < ActiveSupport::TestCase
 
   test "current_running_version" do
     assert_equal \
-      "docker ps --filter label=service=app --filter label=role=web --filter status=running --latest --format \"{{.Names}}\" | grep -oE \"\\-[^-]+$\" | cut -c 2-",
+      "docker ps --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest --format \"{{.Names}}\" | while read line; do echo ${line#app-web-}; done",
       new_command.current_running_version.join(" ")
   end
 
   test "list_versions" do
     assert_equal \
-      "docker ps --filter label=service=app --filter label=role=web --format \"{{.Names}}\" | grep -oE \"\\-[^-]+$\" | cut -c 2-",
+      "docker ps --filter label=service=app --filter label=role=web --format \"{{.Names}}\" | while read line; do echo ${line#app-web-}; done",
       new_command.list_versions.join(" ")
 
     assert_equal \
-      "docker ps --filter label=service=app --filter label=role=web --filter status=running --latest --format \"{{.Names}}\" | grep -oE \"\\-[^-]+$\" | cut -c 2-",
+      "docker ps --filter label=service=app --filter label=role=web --filter status=running --filter status=restarting --latest --format \"{{.Names}}\" | while read line; do echo ${line#app-web-}; done",
-      new_command.list_versions("--latest", status: :running).join(" ")
+      new_command.list_versions("--latest", statuses: [ :running, :restarting ]).join(" ")
   end
 
   test "list_containers" do
@@ -301,6 +336,6 @@ class CommandsAppTest < ActiveSupport::TestCase
 
   private
     def new_command(role: "web")
-      Mrsk::Commands::App.new(Mrsk::Configuration.new(@config, destination: @destination, version: "999"), role: role)
+      Kamal::Commands::App.new(Kamal::Configuration.new(@config, destination: @destination, version: "999"), role: role)
     end
 end

test/commands/auditor_test.rb

@@ -1,43 +1,64 @@
 require "test_helper"
+require "active_support/testing/time_helpers"
 
 class CommandsAuditorTest < ActiveSupport::TestCase
+  include ActiveSupport::Testing::TimeHelpers
+
   setup do
+    freeze_time
+
     @config = {
-      service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" }, servers: [ "1.1.1.1" ],
+      service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" }, servers: [ "1.1.1.1" ]
-      audit_broadcast_cmd: "bin/audit_broadcast"
     }
+
+    @auditor = new_command
+    @performer = `whoami`.strip
+    @recorded_at = Time.now.utc.iso8601
   end
 
   test "record" do
-    assert_match \
+    assert_equal [
-      /echo '.* app removed container' >> mrsk-app-audit.log/,
+      :echo,
-      new_command.record("app removed container").join(" ")
+      "[#{@recorded_at}] [#{@performer}]",
+      "app removed container",
+      ">>", "kamal-app-audit.log"
+    ], @auditor.record("app removed container")
   end
 
   test "record with destination" do
-    @destination = "staging"
+    new_command(destination: "staging").tap do |auditor|
-
+      assert_equal [
-    assert_match \
+        :echo,
-      /echo '.* app removed container' >> mrsk-app-staging-audit.log/,
+        "[#{@recorded_at}] [#{@performer}] [staging]",
-      new_command.record("app removed container").join(" ")
+        "app removed container",
+        ">>", "kamal-app-staging-audit.log"
+      ], auditor.record("app removed container")
+    end
   end
 
-  test "record with role" do
+  test "record with command details" do
-    @role = "web"
+    new_command(role: "web").tap do |auditor|
-
+      assert_equal [
-    assert_match \
+        :echo,
-      /echo '.* \[web\] app removed container' >> mrsk-app-audit.log/,
+        "[#{@recorded_at}] [#{@performer}] [web]",
-      new_command.record("app removed container").join(" ")
+        "app removed container",
+        ">>", "kamal-app-audit.log"
+      ], auditor.record("app removed container")
+    end
   end
 
-  test "broadcast" do
+  test "record with arg details" do
-    assert_match \
+    assert_equal [
-      /bin\/audit_broadcast '\[.*\] app removed container'/,
+      :echo,
-      new_command.broadcast("app removed container").join(" ")
+      "[#{@recorded_at}] [#{@performer}] [value]",
+      "app removed container",
+      ">>", "kamal-app-audit.log"
+    ], @auditor.record("app removed container", detail: "value")
   end
 
+
   private
-    def new_command
+    def new_command(destination: nil, **details)
-      Mrsk::Commands::Auditor.new(Mrsk::Configuration.new(@config, destination: @destination, version: "123"), role: @role)
+      Kamal::Commands::Auditor.new(Kamal::Configuration.new(@config, destination: destination, version: "123"), **details)
     end
 end

test/commands/builder_test.rb

@@ -6,10 +6,10 @@ class CommandsBuilderTest < ActiveSupport::TestCase
   end
 
   test "target multiarch by default" do
-    builder = new_builder_command
+    builder = new_builder_command(builder: { "cache" => { "type" => "gha" }})
     assert_equal "multiarch", builder.name
     assert_equal \
-      "docker buildx build --push --platform linux/amd64,linux/arm64 --builder mrsk-app-multiarch -t dhh/app:123 -t dhh/app:latest --label service=\"app\" --file Dockerfile .",
+      "docker buildx build --push --platform linux/amd64,linux/arm64 --builder kamal-app-multiarch -t dhh/app:123 -t dhh/app:latest --cache-to type=gha --cache-from type=gha --label service=\"app\" --file Dockerfile .",
       builder.push.join(" ")
   end
 
@@ -21,19 +21,27 @@ class CommandsBuilderTest < ActiveSupport::TestCase
       builder.push.join(" ")
   end
 
+  test "target native cached when multiarch is off and cache is set" do
+    builder = new_builder_command(builder: { "multiarch" => false, "cache" => { "type" => "gha" }})
+    assert_equal "native/cached", builder.name
+    assert_equal \
+      "docker buildx build --push -t dhh/app:123 -t dhh/app:latest --cache-to type=gha --cache-from type=gha --label service=\"app\" --file Dockerfile .",
+      builder.push.join(" ")
+  end
+
   test "target multiarch remote when local and remote is set" do
-    builder = new_builder_command(builder: { "local" => { }, "remote" => { } })
+    builder = new_builder_command(builder: { "local" => { }, "remote" => { }, "cache" => { "type" => "gha" } })
     assert_equal "multiarch/remote", builder.name
     assert_equal \
-      "docker buildx build --push --platform linux/amd64,linux/arm64 --builder mrsk-app-multiarch-remote -t dhh/app:123 -t dhh/app:latest --label service=\"app\" --file Dockerfile .",
+      "docker buildx build --push --platform linux/amd64,linux/arm64 --builder kamal-app-multiarch-remote -t dhh/app:123 -t dhh/app:latest --cache-to type=gha --cache-from type=gha --label service=\"app\" --file Dockerfile .",
       builder.push.join(" ")
   end
 
   test "target native remote when only remote is set" do
-    builder = new_builder_command(builder: { "remote" => { "arch" => "amd64" } })
+    builder = new_builder_command(builder: { "remote" => { "arch" => "amd64" }, "cache" => { "type" => "gha" } })
     assert_equal "native/remote", builder.name
     assert_equal \
-      "docker buildx build --push --platform linux/amd64 --builder mrsk-app-native-remote -t dhh/app:123 -t dhh/app:latest --label service=\"app\" --file Dockerfile .",
+      "docker buildx build --push --platform linux/amd64 --builder kamal-app-native-remote -t dhh/app:123 -t dhh/app:latest --cache-to type=gha --cache-from type=gha --label service=\"app\" --file Dockerfile .",
       builder.push.join(" ")
   end
 
@@ -62,7 +70,7 @@ class CommandsBuilderTest < ActiveSupport::TestCase
   test "missing dockerfile" do
     Pathname.any_instance.expects(:exist?).returns(false).once
     builder = new_builder_command(builder: { "dockerfile" => "Dockerfile.xyz" })
-    assert_raises(Mrsk::Commands::Builder::Base::BuilderError) do
+    assert_raises(Kamal::Commands::Builder::Base::BuilderError) do
       builder.target.build_options.join(" ")
     end
   end
@@ -70,7 +78,7 @@ class CommandsBuilderTest < ActiveSupport::TestCase
   test "build context" do
     builder = new_builder_command(builder: { "context" => ".." })
     assert_equal \
-      "docker buildx build --push --platform linux/amd64,linux/arm64 --builder mrsk-app-multiarch -t dhh/app:123 -t dhh/app:latest --label service=\"app\" --file Dockerfile ..",
+      "docker buildx build --push --platform linux/amd64,linux/arm64 --builder kamal-app-multiarch -t dhh/app:123 -t dhh/app:latest --label service=\"app\" --file Dockerfile ..",
       builder.push.join(" ")
   end
 
@@ -84,11 +92,11 @@ class CommandsBuilderTest < ActiveSupport::TestCase
   test "multiarch push with build args" do
     builder = new_builder_command(builder: { "args" => { "a" => 1, "b" => 2 } })
     assert_equal \
-      "docker buildx build --push --platform linux/amd64,linux/arm64 --builder mrsk-app-multiarch -t dhh/app:123 -t dhh/app:latest --label service=\"app\" --build-arg a=\"1\" --build-arg b=\"2\" --file Dockerfile .",
+      "docker buildx build --push --platform linux/amd64,linux/arm64 --builder kamal-app-multiarch -t dhh/app:123 -t dhh/app:latest --label service=\"app\" --build-arg a=\"1\" --build-arg b=\"2\" --file Dockerfile .",
       builder.push.join(" ")
   end
 
-  test "native push with with build secrets" do
+  test "native push with build secrets" do
     builder = new_builder_command(builder: { "multiarch" => false, "secrets" => [ "a", "b" ] })
     assert_equal \
       "docker build -t dhh/app:123 -t dhh/app:latest --label service=\"app\" --secret id=\"a\" --secret id=\"b\" --file Dockerfile . && docker push dhh/app:123 && docker push dhh/app:latest",
@@ -97,6 +105,6 @@ class CommandsBuilderTest < ActiveSupport::TestCase
 
   private
     def new_builder_command(additional_config = {})
-      Mrsk::Commands::Builder.new(Mrsk::Configuration.new(@config.merge(additional_config), version: "123"))
+      Kamal::Commands::Builder.new(Kamal::Configuration.new(@config.merge(additional_config), version: "123"))
     end
 end

test/commands/docker_test.rb

@@ -5,7 +5,7 @@ class CommandsDockerTest < ActiveSupport::TestCase
     @config = {
       service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" }, servers: [ "1.1.1.1" ]
     }
-    @docker = Mrsk::Commands::Docker.new(Mrsk::Configuration.new(@config))
+    @docker = Kamal::Commands::Docker.new(Kamal::Configuration.new(@config))
   end
 
   test "install" do

test/commands/healthcheck_test.rb

@@ -10,7 +10,7 @@ class CommandsHealthcheckTest < ActiveSupport::TestCase
 
   test "run" do
     assert_equal \
-      "docker run --detach --name healthcheck-app-123 --publish 3999:3000 --label service=healthcheck-app -e MRSK_CONTAINER_NAME=\"healthcheck-app\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" dhh/app:123",
+      "docker run --detach --name healthcheck-app-123 --publish 3999:3000 --label service=healthcheck-app -e KAMAL_CONTAINER_NAME=\"healthcheck-app\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" dhh/app:123",
       new_command.run.join(" ")
   end
 
@@ -18,7 +18,7 @@ class CommandsHealthcheckTest < ActiveSupport::TestCase
     @config[:healthcheck] = { "port" => 3001 }
 
     assert_equal \
-      "docker run --detach --name healthcheck-app-123 --publish 3999:3001 --label service=healthcheck-app -e MRSK_CONTAINER_NAME=\"healthcheck-app\" --health-cmd \"curl -f http://localhost:3001/up || exit 1\" --health-interval \"1s\" dhh/app:123",
+      "docker run --detach --name healthcheck-app-123 --publish 3999:3001 --label service=healthcheck-app -e KAMAL_CONTAINER_NAME=\"healthcheck-app\" --health-cmd \"curl -f http://localhost:3001/up || exit 1\" --health-interval \"1s\" dhh/app:123",
       new_command.run.join(" ")
   end
 
@@ -26,7 +26,7 @@ class CommandsHealthcheckTest < ActiveSupport::TestCase
     @destination = "staging"
 
     assert_equal \
-      "docker run --detach --name healthcheck-app-staging-123 --publish 3999:3000 --label service=healthcheck-app-staging -e MRSK_CONTAINER_NAME=\"healthcheck-app-staging\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" dhh/app:123",
+      "docker run --detach --name healthcheck-app-staging-123 --publish 3999:3000 --label service=healthcheck-app-staging -e KAMAL_CONTAINER_NAME=\"healthcheck-app-staging\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" dhh/app:123",
       new_command.run.join(" ")
   end
 
@@ -34,14 +34,14 @@ class CommandsHealthcheckTest < ActiveSupport::TestCase
     @config[:healthcheck] = { "cmd" => "/bin/up" }
 
     assert_equal \
-      "docker run --detach --name healthcheck-app-123 --publish 3999:3000 --label service=healthcheck-app -e MRSK_CONTAINER_NAME=\"healthcheck-app\" --health-cmd \"/bin/up\" --health-interval \"1s\" dhh/app:123",
+      "docker run --detach --name healthcheck-app-123 --publish 3999:3000 --label service=healthcheck-app -e KAMAL_CONTAINER_NAME=\"healthcheck-app\" --health-cmd \"/bin/up\" --health-interval \"1s\" dhh/app:123",
       new_command.run.join(" ")
   end
 
   test "run with custom options" do
     @config[:servers] = { "web" => { "hosts" => [ "1.1.1.1" ], "options" => { "mount" => "somewhere" } } }
     assert_equal \
-      "docker run --detach --name healthcheck-app-123 --publish 3999:3000 --label service=healthcheck-app -e MRSK_CONTAINER_NAME=\"healthcheck-app\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --mount \"somewhere\" dhh/app:123",
+      "docker run --detach --name healthcheck-app-123 --publish 3999:3000 --label service=healthcheck-app -e KAMAL_CONTAINER_NAME=\"healthcheck-app\" --health-cmd \"curl -f http://localhost:3000/up || exit 1\" --health-interval \"1s\" --mount \"somewhere\" dhh/app:123",
       new_command.run.join(" ")
   end
 
@@ -51,6 +51,12 @@ class CommandsHealthcheckTest < ActiveSupport::TestCase
       new_command.status.join(" ")
   end
 
+  test "container_health_log" do
+    assert_equal \
+      "docker container ls --all --filter name=^healthcheck-app-123$ --quiet | xargs docker inspect --format '{{json .State.Health}}'",
+      new_command.container_health_log.join(" ")
+  end
+
   test "stop" do
     assert_equal \
       "docker container ls --all --filter name=^healthcheck-app-123$ --quiet | xargs docker stop",
@@ -95,6 +101,6 @@ class CommandsHealthcheckTest < ActiveSupport::TestCase
 
   private
     def new_command
-      Mrsk::Commands::Healthcheck.new(Mrsk::Configuration.new(@config, destination: @destination, version: "123"))
+      Kamal::Commands::Healthcheck.new(Kamal::Configuration.new(@config, destination: @destination, version: "123"))
     end
 end

test/commands/hook_test.rb

@@ -0,0 +1,44 @@
+require "test_helper"
+
+class CommandsHookTest < ActiveSupport::TestCase
+  include ActiveSupport::Testing::TimeHelpers
+
+  setup do
+    freeze_time
+
+    @config = {
+      service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" }, servers: [ "1.1.1.1" ],
+      traefik: { "args" => { "accesslog.format" => "json", "metrics.prometheus.buckets" => "0.1,0.3,1.2,5.0" } }
+    }
+
+    @performer = `whoami`.strip
+    @recorded_at = Time.now.utc.iso8601
+  end
+
+  test "run" do
+    assert_equal [
+      ".kamal/hooks/foo",
+      { env: {
+        "KAMAL_RECORDED_AT" => @recorded_at,
+        "KAMAL_PERFORMER" => @performer,
+        "KAMAL_VERSION" => "123",
+        "KAMAL_SERVICE_VERSION" => "app@123" } }
+    ], new_command.run("foo")
+  end
+
+  test "run with custom hooks_path" do
+    assert_equal [
+      "custom/hooks/path/foo",
+      { env: {
+        "KAMAL_RECORDED_AT" => @recorded_at,
+        "KAMAL_PERFORMER" => @performer,
+        "KAMAL_VERSION" => "123",
+        "KAMAL_SERVICE_VERSION" => "app@123" } }
+    ], new_command(hooks_path: "custom/hooks/path").run("foo")
+  end
+
+  private
+    def new_command(**extra_config)
+      Kamal::Commands::Hook.new(Kamal::Configuration.new(@config.merge(**extra_config), version: "123"))
+    end
+end

test/commands/lock_test.rb

@@ -10,24 +10,24 @@ class CommandsLockTest < ActiveSupport::TestCase
 
   test "status" do
     assert_equal \
-      "stat mrsk_lock > /dev/null && cat mrsk_lock/details | base64 -d",
+      "stat kamal_lock-app > /dev/null && cat kamal_lock-app/details | base64 -d",
       new_command.status.join(" ")
   end
 
   test "acquire" do
     assert_match \
-      /mkdir mrsk_lock && echo ".*" > mrsk_lock\/details/m,
+      /mkdir kamal_lock-app && echo ".*" > kamal_lock-app\/details/m,
       new_command.acquire("Hello", "123").join(" ")
   end
 
   test "release" do
     assert_match \
-      "rm mrsk_lock/details && rm -r mrsk_lock",
+      "rm kamal_lock-app/details && rm -r kamal_lock-app",
       new_command.release.join(" ")
   end
 
   private
     def new_command
-      Mrsk::Commands::Lock.new(Mrsk::Configuration.new(@config, version: "123"))
+      Kamal::Commands::Lock.new(Kamal::Configuration.new(@config, version: "123"))
     end
 end

test/commands/prune_test.rb

@@ -8,10 +8,16 @@ class CommandsPruneTest < ActiveSupport::TestCase
     }
   end
 
-  test "images" do
+  test "dangling images" do
     assert_equal \
-      "docker image prune --all --force --filter label=service=app --filter dangling=true",
+      "docker image prune --force --filter label=service=app --filter dangling=true",
-      new_command.images.join(" ")
+      new_command.dangling_images.join(" ")
+  end
+
+  test "tagged images" do
+    assert_equal \
+      "docker image ls --filter label=service=app --format '{{.ID}} {{.Repository}}:{{.Tag}}' | grep -v -w \"$(docker container ls -a --format '{{.Image}}\\|' --filter label=service=app | tr -d '\\n')dhh/app:latest\\|dhh/app:<none>\" | while read image tag; do docker rmi $tag; done",
+      new_command.tagged_images.join(" ")
   end
 
   test "containers" do
@@ -22,6 +28,6 @@ class CommandsPruneTest < ActiveSupport::TestCase
 
   private
     def new_command
-      Mrsk::Commands::Prune.new(Mrsk::Configuration.new(@config, version: "123"))
+      Kamal::Commands::Prune.new(Kamal::Configuration.new(@config, version: "123"))
     end
 end

test/commands/registry_test.rb

@@ -10,7 +10,7 @@ class CommandsRegistryTest < ActiveSupport::TestCase
       },
       servers: [ "1.1.1.1" ]
     }
-    @registry = Mrsk::Commands::Registry.new Mrsk::Configuration.new(@config)
+    @registry = Kamal::Commands::Registry.new Kamal::Configuration.new(@config)
   end
 
   test "registry login" do
@@ -20,25 +20,25 @@ class CommandsRegistryTest < ActiveSupport::TestCase
   end
 
   test "registry login with ENV password" do
-    ENV["MRSK_REGISTRY_PASSWORD"] = "more-secret"
+    ENV["KAMAL_REGISTRY_PASSWORD"] = "more-secret"
-    @config[:registry]["password"] = [ "MRSK_REGISTRY_PASSWORD" ]
+    @config[:registry]["password"] = [ "KAMAL_REGISTRY_PASSWORD" ]
 
     assert_equal \
       "docker login hub.docker.com -u dhh -p more-secret",
       @registry.login.join(" ")
   ensure
-    ENV.delete("MRSK_REGISTRY_PASSWORD")
+    ENV.delete("KAMAL_REGISTRY_PASSWORD")
   end
 
   test "registry login with ENV username" do
-    ENV["MRSK_REGISTRY_USERNAME"] = "also-secret"
+    ENV["KAMAL_REGISTRY_USERNAME"] = "also-secret"
-    @config[:registry]["username"] = [ "MRSK_REGISTRY_USERNAME" ]
+    @config[:registry]["username"] = [ "KAMAL_REGISTRY_USERNAME" ]
 
     assert_equal \
       "docker login hub.docker.com -u also-secret -p secret",
       @registry.login.join(" ")
   ensure
-    ENV.delete("MRSK_REGISTRY_USERNAME")
+    ENV.delete("KAMAL_REGISTRY_USERNAME")
   end
 
   test "registry logout" do

test/commands/traefik_test.rb

@@ -8,60 +8,82 @@ class CommandsTraefikTest < ActiveSupport::TestCase
       service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" }, servers: [ "1.1.1.1" ],
       traefik: { "image" => @image, "args" => { "accesslog.format" => "json", "api.insecure" => true, "metrics.prometheus.buckets" => "0.1,0.3,1.2,5.0" } }
     }
+
+    ENV["EXAMPLE_API_KEY"] = "456"
+  end
+
+  teardown do
+    ENV.delete("EXAMPLE_API_KEY")
   end
 
   test "run" do
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
 
     @config[:traefik]["host_port"] = "8080"
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 8080:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 8080:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      new_command.run.join(" ")
+
+    @config[:traefik]["publish"] = false
+    assert_equal \
+      "docker run --name traefik --detach --restart unless-stopped --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
   end
 
   test "run with ports configured" do
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
 
     @config[:traefik]["options"] = {"publish" => %w[9000:9000 9001:9001]}
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" --publish \"9000:9000\" --publish \"9001:9001\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" --publish \"9000:9000\" --publish \"9001:9001\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
   end
 
   test "run with volumes configured" do
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
 
     @config[:traefik]["options"] = {"volume" => %w[./letsencrypt/acme.json:/letsencrypt/acme.json] }
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" --volume \"./letsencrypt/acme.json:/letsencrypt/acme.json\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" --volume \"./letsencrypt/acme.json:/letsencrypt/acme.json\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
   end
 
   test "run with several options configured" do
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
 
     @config[:traefik]["options"] = {"volume" => %w[./letsencrypt/acme.json:/letsencrypt/acme.json], "publish" => %w[8080:8080], "memory" => "512m"}
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" --volume \"./letsencrypt/acme.json:/letsencrypt/acme.json\" --publish \"8080:8080\" --memory \"512m\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" --volume \"./letsencrypt/acme.json:/letsencrypt/acme.json\" --publish \"8080:8080\" --memory \"512m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
   end
 
   test "run with labels configured" do
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
 
     @config[:traefik]["labels"] = { "traefik.http.routers.dashboard.service" => "api@internal", "traefik.http.routers.dashboard.middlewares" => "auth" }
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" --label traefik.http.routers.dashboard.service=\"api@internal\" --label traefik.http.routers.dashboard.middlewares=\"auth\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" --label traefik.http.routers.dashboard.service=\"api@internal\" --label traefik.http.routers.dashboard.middlewares=\"auth\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      new_command.run.join(" ")
+  end
+
+  test "run with env configured" do
+    assert_equal \
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      new_command.run.join(" ")
+
+    @config[:traefik]["env"] = { "secret" => %w[EXAMPLE_API_KEY] }
+    assert_equal \
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock -e EXAMPLE_API_KEY=\"456\" --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
   end
 
@@ -69,7 +91,7 @@ class CommandsTraefikTest < ActiveSupport::TestCase
     @config.delete(:traefik)
 
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{Mrsk::Commands::Traefik::DEFAULT_IMAGE} --providers.docker --log.level=DEBUG",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{Kamal::Commands::Traefik::DEFAULT_IMAGE} --providers.docker --log.level=\"DEBUG\"",
       new_command.run.join(" ")
   end
 
@@ -77,7 +99,15 @@ class CommandsTraefikTest < ActiveSupport::TestCase
     @config[:logging] = { "driver" => "local", "options" => { "max-size" => "100m", "max-file" => "3" } }
 
     assert_equal \
-      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-driver \"local\" --log-opt max-size=\"100m\" --log-opt max-file=\"3\" #{@image} --providers.docker --log.level=DEBUG --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-driver \"local\" --log-opt max-size=\"100m\" --log-opt max-file=\"3\" #{@image} --providers.docker --log.level=\"DEBUG\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
+      new_command.run.join(" ")
+  end
+
+  test "run with default args overriden" do
+    @config[:traefik]["args"]["log.level"] = "ERROR"
+
+    assert_equal \
+    "docker run --name traefik --detach --restart unless-stopped --publish 80:80 --volume /var/run/docker.sock:/var/run/docker.sock --log-opt max-size=\"10m\" #{@image} --providers.docker --log.level=\"ERROR\" --accesslog.format=\"json\" --api.insecure --metrics.prometheus.buckets=\"0.1,0.3,1.2,5.0\"",
       new_command.run.join(" ")
   end
 
@@ -149,6 +179,6 @@ class CommandsTraefikTest < ActiveSupport::TestCase
 
   private
     def new_command
-      Mrsk::Commands::Traefik.new(Mrsk::Configuration.new(@config, version: "123"))
+      Kamal::Commands::Traefik.new(Kamal::Configuration.new(@config, version: "123"))
     end
 end

test/configuration/accessory_test.rb

@@ -66,7 +66,7 @@ class ConfigurationAccessoryTest < ActiveSupport::TestCase
       }
     }
 
-    @config = Mrsk::Configuration.new(@deploy)
+    @config = Kamal::Configuration.new(@deploy)
   end
 
   test "service name" do
@@ -87,7 +87,7 @@ class ConfigurationAccessoryTest < ActiveSupport::TestCase
 
   test "missing host" do
     @deploy[:accessories]["mysql"]["host"] = nil
-    @config = Mrsk::Configuration.new(@deploy)
+    @config = Kamal::Configuration.new(@deploy)
 
     assert_raises(ArgumentError) do
       @config.accessory(:mysql).hosts
@@ -97,7 +97,7 @@ class ConfigurationAccessoryTest < ActiveSupport::TestCase
   test "setting host, hosts and roles" do
     @deploy[:accessories]["mysql"]["hosts"] = true
     @deploy[:accessories]["mysql"]["roles"] = true
-    @config = Mrsk::Configuration.new(@deploy)
+    @config = Kamal::Configuration.new(@deploy)
 
     exception = assert_raises(ArgumentError) do
       @config.accessory(:mysql).hosts
@@ -114,8 +114,8 @@ class ConfigurationAccessoryTest < ActiveSupport::TestCase
     ENV["MYSQL_ROOT_PASSWORD"] = "secret123"
 
     @config.accessory(:mysql).env_args.tap do |env_args|
-      assert_equal ["-e", "MYSQL_ROOT_PASSWORD=\"secret123\"", "-e", "MYSQL_ROOT_HOST=\"%\""], Mrsk::Utils.unredacted(env_args)
+      assert_equal ["-e", "MYSQL_ROOT_PASSWORD=\"secret123\"", "-e", "MYSQL_ROOT_HOST=\"%\""], Kamal::Utils.unredacted(env_args)
-      assert_equal ["-e", "MYSQL_ROOT_PASSWORD=[REDACTED]", "-e", "MYSQL_ROOT_HOST=\"%\""], Mrsk::Utils.redacted(env_args)
+      assert_equal ["-e", "MYSQL_ROOT_PASSWORD=[REDACTED]", "-e", "MYSQL_ROOT_HOST=\"%\""], Kamal::Utils.redacted(env_args)
     end
   ensure
     ENV["MYSQL_ROOT_PASSWORD"] = nil
@@ -132,7 +132,7 @@ class ConfigurationAccessoryTest < ActiveSupport::TestCase
 
   test "dynamic file expansion" do
     @deploy[:accessories]["mysql"]["files"] << "test/fixtures/files/structure.sql.erb:/docker-entrypoint-initdb.d/structure.sql"
-    @config = Mrsk::Configuration.new(@deploy)
+    @config = Kamal::Configuration.new(@deploy)
 
     assert_match "This was dynamically expanded", @config.accessory(:mysql).files.keys[2].read
     assert_match "%", @config.accessory(:mysql).files.keys[2].read

test/configuration/builder_test.rb

@@ -0,0 +1,151 @@
+require "test_helper"
+
+class ConfigurationBuilderTest < ActiveSupport::TestCase
+  setup do
+    @deploy = {
+      service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" },
+      servers: [ "1.1.1.1" ]
+    }
+
+    @config = Kamal::Configuration.new(@deploy)
+
+    @deploy_with_builder_option = {
+      service: "app", image: "dhh/app", registry: { "username" => "dhh", "password" => "secret" },
+      servers: [ "1.1.1.1" ],
+      builder: {}
+    }
+
+    @config_with_builder_option = Kamal::Configuration.new(@deploy_with_builder_option)
+  end
+
+  test "multiarch?" do
+    assert_equal true, @config.builder.multiarch?
+  end
+
+  test "setting multiarch to false" do
+    @deploy_with_builder_option[:builder] = { "multiarch" => false }
+
+    assert_equal false, @config_with_builder_option.builder.multiarch?
+  end
+
+  test "local?" do
+    assert_equal false, @config.builder.local?
+  end
+
+  test "remote?" do
+    assert_equal false, @config.builder.remote?
+  end
+
+  test "remote_arch" do
+    assert_nil @config.builder.remote_arch
+  end
+
+  test "remote_host" do
+    assert_nil @config.builder.remote_host
+  end
+
+  test "setting both local and remote configs" do
+    @deploy_with_builder_option[:builder] = {
+      "local" => { "arch" => "arm64", "host" => "unix:///Users/<%= `whoami`.strip %>/.docker/run/docker.sock" },
+      "remote" => { "arch" => "amd64", "host" => "ssh://root@192.168.0.1" }
+    }
+
+    assert_equal true, @config_with_builder_option.builder.local?
+    assert_equal true, @config_with_builder_option.builder.remote?
+
+    assert_equal "amd64", @config_with_builder_option.builder.remote_arch
+    assert_equal "ssh://root@192.168.0.1", @config_with_builder_option.builder.remote_host
+
+    assert_equal "arm64", @config_with_builder_option.builder.local_arch
+    assert_equal "unix:///Users/<%= `whoami`.strip %>/.docker/run/docker.sock", @config_with_builder_option.builder.local_host
+  end
+
+  test "cached?" do
+    assert_equal false, @config.builder.cached?
+  end
+
+  test "invalid cache type specified" do
+    @deploy_with_builder_option[:builder] = { "cache" => { "type" => "invalid" } }
+
+    assert_raises(ArgumentError) do
+      @config_with_builder_option.builder
+    end
+  end
+
+  test "cache_from" do
+    assert_nil @config.builder.cache_from
+  end
+
+  test "cache_to" do
+    assert_nil @config.builder.cache_to
+  end
+
+  test "setting gha cache" do
+    @deploy_with_builder_option[:builder] = { "cache" => { "type" => "gha", "options" => "mode=max" } }
+
+    assert_equal "type=gha", @config_with_builder_option.builder.cache_from
+    assert_equal "type=gha,mode=max", @config_with_builder_option.builder.cache_to
+  end
+
+  test "setting registry cache" do
+    @deploy_with_builder_option[:builder] = { "cache" => { "type" => "registry", "options" => "mode=max,image-manifest=true,oci-mediatypes=true" } }
+
+    assert_equal "type=registry,ref=dhh/app-build-cache", @config_with_builder_option.builder.cache_from
+    assert_equal "type=registry,mode=max,image-manifest=true,oci-mediatypes=true,ref=dhh/app-build-cache", @config_with_builder_option.builder.cache_to
+  end
+
+  test "setting registry cache when using a custom registry" do
+    @config_with_builder_option.registry["server"] = "registry.example.com"
+    @deploy_with_builder_option[:builder] = { "cache" => { "type" => "registry", "options" => "mode=max,image-manifest=true,oci-mediatypes=true" } }
+
+    assert_equal "type=registry,ref=registry.example.com/dhh/app-build-cache", @config_with_builder_option.builder.cache_from
+    assert_equal "type=registry,mode=max,image-manifest=true,oci-mediatypes=true,ref=registry.example.com/dhh/app-build-cache", @config_with_builder_option.builder.cache_to
+  end
+
+  test "setting registry cache with image" do
+    @deploy_with_builder_option[:builder] = { "cache" => { "type" => "registry", "image" => "kamal", "options" => "mode=max" } }
+
+    assert_equal "type=registry,ref=kamal", @config_with_builder_option.builder.cache_from
+    assert_equal "type=registry,mode=max,ref=kamal", @config_with_builder_option.builder.cache_to
+  end
+
+  test "args" do
+    assert_equal({}, @config.builder.args)
+  end
+
+  test "setting args" do
+    @deploy_with_builder_option[:builder] = { "args" => { "key" => "value" } }
+
+    assert_equal({ "key" => "value" }, @config_with_builder_option.builder.args)
+  end
+
+  test "secrets" do
+    assert_equal [], @config.builder.secrets
+  end
+
+  test "setting secrets" do
+    @deploy_with_builder_option[:builder] = { "secrets" => ["GITHUB_TOKEN"] }
+
+    assert_equal ["GITHUB_TOKEN"], @config_with_builder_option.builder.secrets
+  end
+
+  test "dockerfile" do
+    assert_equal "Dockerfile", @config.builder.dockerfile
+  end
+
+  test "setting dockerfile" do
+    @deploy_with_builder_option[:builder] = { "dockerfile" => "Dockerfile.dev" }
+
+    assert_equal "Dockerfile.dev", @config_with_builder_option.builder.dockerfile
+  end
+
+  test "context" do
+    assert_equal ".", @config.builder.context
+  end
+
+  test "setting context" do
+    @deploy_with_builder_option[:builder] = { "context" => ".." }
+
+    assert_equal "..", @config_with_builder_option.builder.context
+  end
+end

test/configuration/role_test.rb

@@ -8,7 +8,7 @@ class ConfigurationRoleTest < ActiveSupport::TestCase
       env: { "REDIS_URL" => "redis://x/y" }
     }
 
-    @config = Mrsk::Configuration.new(@deploy)
+    @config = Kamal::Configuration.new(@deploy)
 
     @deploy_with_roles = @deploy.dup.merge({
       servers: {
@@ -24,7 +24,7 @@ class ConfigurationRoleTest < ActiveSupport::TestCase
       }
     })
 
-    @config_with_roles = Mrsk::Configuration.new(@deploy_with_roles)
+    @config_with_roles = Kamal::Configuration.new(@deploy_with_roles)
   end
 
   test "hosts" do
@@ -62,7 +62,7 @@ class ConfigurationRoleTest < ActiveSupport::TestCase
   end
 
   test "default traefik label on non-web role" do
-    config = Mrsk::Configuration.new(@deploy_with_roles.tap { |c|
+    config = Kamal::Configuration.new(@deploy_with_roles.tap { |c|
       c[:servers]["beta"] = { "traefik" => "true", "hosts" => [ "1.1.1.5" ] }
     })
 
@@ -98,8 +98,8 @@ class ConfigurationRoleTest < ActiveSupport::TestCase
     ENV["DB_PASSWORD"] = "secret&\"123"
 
     @config_with_roles.role(:workers).env_args.tap do |env_args|
-      assert_equal ["-e", "REDIS_PASSWORD=\"secret456\"", "-e", "DB_PASSWORD=\"secret&\\\"123\"", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Mrsk::Utils.unredacted(env_args)
+      assert_equal ["-e", "REDIS_PASSWORD=\"secret456\"", "-e", "DB_PASSWORD=\"secret&\\\"123\"", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Kamal::Utils.unredacted(env_args)
-      assert_equal ["-e", "REDIS_PASSWORD=[REDACTED]", "-e", "DB_PASSWORD=[REDACTED]", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Mrsk::Utils.redacted(env_args)
+      assert_equal ["-e", "REDIS_PASSWORD=[REDACTED]", "-e", "DB_PASSWORD=[REDACTED]", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Kamal::Utils.redacted(env_args)
     end
   ensure
     ENV["REDIS_PASSWORD"] = nil
@@ -120,8 +120,8 @@ class ConfigurationRoleTest < ActiveSupport::TestCase
     ENV["DB_PASSWORD"] = "secret123"
 
     @config_with_roles.role(:workers).env_args.tap do |env_args|
-      assert_equal ["-e", "DB_PASSWORD=\"secret123\"", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Mrsk::Utils.unredacted(env_args)
+      assert_equal ["-e", "DB_PASSWORD=\"secret123\"", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Kamal::Utils.unredacted(env_args)
-      assert_equal ["-e", "DB_PASSWORD=[REDACTED]", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Mrsk::Utils.redacted(env_args)
+      assert_equal ["-e", "DB_PASSWORD=[REDACTED]", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Kamal::Utils.redacted(env_args)
     end
   ensure
     ENV["DB_PASSWORD"] = nil
@@ -140,8 +140,8 @@ class ConfigurationRoleTest < ActiveSupport::TestCase
     ENV["REDIS_PASSWORD"] = "secret456"
 
     @config_with_roles.role(:workers).env_args.tap do |env_args|
-      assert_equal ["-e", "REDIS_PASSWORD=\"secret456\"", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Mrsk::Utils.unredacted(env_args)
+      assert_equal ["-e", "REDIS_PASSWORD=\"secret456\"", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Kamal::Utils.unredacted(env_args)
-      assert_equal ["-e", "REDIS_PASSWORD=[REDACTED]", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Mrsk::Utils.redacted(env_args)
+      assert_equal ["-e", "REDIS_PASSWORD=[REDACTED]", "-e", "REDIS_URL=\"redis://a/b\"", "-e", "WEB_CONCURRENCY=\"4\""], Kamal::Utils.redacted(env_args)
     end
   ensure
     ENV["REDIS_PASSWORD"] = nil