From fed64ef244e64fe6b5e9353724263d024a11373b Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Sat, 14 Jan 2023 11:31:37 +0100
Subject: [PATCH] Switch to proper standalone executable with Thor

---
 Gemfile                                       |  1 +
 Gemfile.lock                                  | 10 +-
 bin/mrsk                                      |  5 +
 lib/mrsk.rb                                   |  1 -
 lib/mrsk/cli.rb                               |  9 ++
 lib/mrsk/cli/app.rb                           | 98 +++++++++++++++++++
 lib/mrsk/cli/base.rb                          | 27 +++++
 lib/mrsk/cli/build.rb                         | 53 ++++++++++
 lib/mrsk/cli/main.rb                          | 87 ++++++++++++++++
 lib/mrsk/cli/prune.rb                         | 19 ++++
 lib/mrsk/cli/registry.rb                      | 14 +++
 lib/mrsk/cli/server.rb                        |  8 ++
 .../mrsk => mrsk/cli}/templates/deploy.yml    |  4 +-
 lib/mrsk/cli/traefik.rb                       | 44 +++++++++
 lib/mrsk/commander.rb                         |  9 +-
 lib/mrsk/commands/app.rb                      |  8 +-
 lib/mrsk/configuration.rb                     |  4 +-
 lib/mrsk/engine.rb                            |  4 -
 lib/tasks/mrsk/app.rake                       | 97 ------------------
 lib/tasks/mrsk/build.rake                     | 52 ----------
 lib/tasks/mrsk/mrsk.rake                      | 37 -------
 lib/tasks/mrsk/prune.rake                     | 18 ----
 lib/tasks/mrsk/registry.rake                  | 16 ---
 lib/tasks/mrsk/server.rake                    | 10 --
 lib/tasks/mrsk/setup.rb                       |  6 --
 lib/tasks/mrsk/templates/mrsk                 |  8 --
 lib/tasks/mrsk/traefik.rake                   | 41 --------
 mrsk.gemspec                                  |  4 +-
 28 files changed, 387 insertions(+), 307 deletions(-)
 create mode 100755 bin/mrsk
 create mode 100644 lib/mrsk/cli.rb
 create mode 100644 lib/mrsk/cli/app.rb
 create mode 100644 lib/mrsk/cli/base.rb
 create mode 100644 lib/mrsk/cli/build.rb
 create mode 100644 lib/mrsk/cli/main.rb
 create mode 100644 lib/mrsk/cli/prune.rb
 create mode 100644 lib/mrsk/cli/registry.rb
 create mode 100644 lib/mrsk/cli/server.rb
 rename lib/{tasks/mrsk => mrsk/cli}/templates/deploy.yml (88%)
 create mode 100644 lib/mrsk/cli/traefik.rb
 delete mode 100755 lib/mrsk/engine.rb
 delete mode 100644 lib/tasks/mrsk/app.rake
 delete mode 100644 lib/tasks/mrsk/build.rake
 delete mode 100644 lib/tasks/mrsk/mrsk.rake
 delete mode 100644 lib/tasks/mrsk/prune.rake
 delete mode 100644 lib/tasks/mrsk/registry.rake
 delete mode 100644 lib/tasks/mrsk/server.rake
 delete mode 100644 lib/tasks/mrsk/setup.rb
 delete mode 100755 lib/tasks/mrsk/templates/mrsk
 delete mode 100644 lib/tasks/mrsk/traefik.rake

diff --git a/Gemfile b/Gemfile
index ceed4117..8e9e4f6e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,3 +4,4 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 gemspec
 
 gem "debug"
+gem "railties"
diff --git a/Gemfile.lock b/Gemfile.lock
index 46ad7d25..55c75b0a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,8 +2,9 @@ PATH
   remote: .
   specs:
     mrsk (0.0.3)
-      railties (>= 7.0.0)
+      activesupport (>= 7.0)
       sshkit (~> 1.21)
+      thor (~> 1.2)
 
 GEM
   remote: https://rubygems.org/
@@ -46,11 +47,11 @@ GEM
     net-scp (4.0.0)
       net-ssh (>= 2.6.5, < 8.0.0)
     net-ssh (7.0.1)
-    nokogiri (1.14.0.rc1-arm64-darwin)
+    nokogiri (1.14.0-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.14.0.rc1-x86_64-darwin)
+    nokogiri (1.14.0-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.14.0.rc1-x86_64-linux)
+    nokogiri (1.14.0-x86_64-linux)
       racc (~> 1.4)
     racc (1.6.2)
     rack (2.2.5)
@@ -90,6 +91,7 @@ PLATFORMS
 DEPENDENCIES
   debug
   mrsk!
+  railties
 
 BUNDLED WITH
    2.4.3
diff --git a/bin/mrsk b/bin/mrsk
new file mode 100755
index 00000000..11341e9b
--- /dev/null
+++ b/bin/mrsk
@@ -0,0 +1,5 @@
+#!/usr/bin/env ruby
+
+require "mrsk/cli"
+
+Mrsk::Cli::Main.start(ARGV)
diff --git a/lib/mrsk.rb b/lib/mrsk.rb
index af755fc7..3adf2bef 100644
--- a/lib/mrsk.rb
+++ b/lib/mrsk.rb
@@ -2,5 +2,4 @@ module Mrsk
 end
 
 require "mrsk/version"
-require "mrsk/engine"
 require "mrsk/commander"
diff --git a/lib/mrsk/cli.rb b/lib/mrsk/cli.rb
new file mode 100644
index 00000000..5413e350
--- /dev/null
+++ b/lib/mrsk/cli.rb
@@ -0,0 +1,9 @@
+require "mrsk"
+
+MRSK = Mrsk::Commander.new \
+  config_file: Pathname.new(File.expand_path("config/deploy.yml"))
+
+module Mrsk::Cli
+end
+
+require "mrsk/cli/main"
diff --git a/lib/mrsk/cli/app.rb b/lib/mrsk/cli/app.rb
new file mode 100644
index 00000000..d374fcfd
--- /dev/null
+++ b/lib/mrsk/cli/app.rb
@@ -0,0 +1,98 @@
+require "mrsk/cli/base"
+
+class Mrsk::Cli::App < Mrsk::Cli::Base
+  desc "boot", "Boot app on servers (or start them if they've already been booted)"
+  def boot
+    MRSK.config.roles.each do |role|
+      on(role.hosts) do |host|
+        begin
+          execute *MRSK.app.run(role: role.name)
+        rescue SSHKit::Command::Failed => e
+          if e.message =~ /already in use/
+            error "Container with same version already deployed on #{host}, starting that instead"
+            execute *MRSK.app.start, host: host
+          else
+            raise
+          end
+        end
+      end
+    end
+  end
+  
+  desc "start", "Start existing app on servers (use --version=<git-hash> to designate specific version)"
+  option :version, desc: "Defaults to the most recent git-hash in local repository"
+  def start
+    if (version = options[:version]).present?
+      on(MRSK.config.hosts) { execute *MRSK.app.start(version: version), raise_on_non_zero_exit: false }
+    else
+      on(MRSK.config.hosts) { execute *MRSK.app.start, raise_on_non_zero_exit: false }
+    end
+  end
+  
+  desc "stop", "Stop app on servers"
+  def stop
+    on(MRSK.config.hosts) { execute *MRSK.app.stop, raise_on_non_zero_exit: false }
+  end
+  
+  desc "restart", "Start app on servers (use VERSION=<git-hash> to designate which version)"
+  def restart
+    invoke :stop
+    invoke :start
+  end
+  
+  desc "details", "Display details about app containers"
+  def details
+    on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.info, verbosity: Logger::INFO) + "\n\n" }
+  end
+  
+  desc "exec [CMD]", "Execute a custom task on servers passed in as CMD='bin/rake some:task'"
+  option :once, type: :boolean, default: false
+  def exec(cmd)
+    if options[:once]
+      on(MRSK.config.primary_host) { puts capture(*MRSK.app.exec(cmd), verbosity: Logger::INFO) }
+    else
+      on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.exec(cmd), verbosity: Logger::INFO) + "\n\n" }
+    end
+  end
+  
+  desc "console [HOST]", "Start Rails Console on primary host (or designated HOST)"
+  def console(host = MRSK.config.primary_host)
+    puts "Launching Rails console on #{host}..."
+    exec MRSK.app.console(host: host)
+  end
+
+  desc "runner [EXPRESSION]", "Execute Rails runner with given expression"
+  option :once, type: :boolean, default: false, desc: 
+  def runner(expression)
+    if options[:once]
+      on(MRSK.config.primary_host) { puts capture(*MRSK.app.exec("bin/rails", "runner", "'#{expression}'"), verbosity: Logger::INFO) }
+    else
+      on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.exec("bin/rails", "runner", "'#{expression}'"), verbosity: Logger::INFO) + "\n\n" }
+    end
+  end
+
+  desc "containers", "List all the app containers currently on servers"
+  def containers
+    on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.list_containers) + "\n\n" }
+  end
+  
+  desc "logs", "Show last 100 log lines from app on servers"
+  def logs
+    # FIXME: Catch when app containers aren't running
+    on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.logs) + "\n\n" }
+  end
+  
+  desc "remove", "Remove app containers and images from servers"
+  option :only, default: "", desc: "Use 'containers' or 'images'"
+  def remove
+    case options[:only]
+    when "containers"
+      on(MRSK.config.hosts) { execute *MRSK.app.remove_containers }
+    when "images"
+      on(MRSK.config.hosts) { execute *MRSK.app.remove_images }
+    else
+      on(MRSK.config.hosts) { execute *MRSK.app.remove_containers }
+      on(MRSK.config.hosts) { execute *MRSK.app.remove_images }
+    end
+  end
+end
diff --git a/lib/mrsk/cli/base.rb b/lib/mrsk/cli/base.rb
new file mode 100644
index 00000000..a2821915
--- /dev/null
+++ b/lib/mrsk/cli/base.rb
@@ -0,0 +1,27 @@
+require "thor"
+require "sshkit"
+require "sshkit/dsl"
+
+module Mrsk::Cli
+  class Base < Thor
+    include SSHKit::DSL
+
+    def self.exit_on_failure?() true end
+
+    class_option :verbose, type: :boolean, aliases: "-v", desc: "Detailed logging"
+
+    def initialize(*)
+      super
+      MRSK.verbose = options[:verbose]
+    end
+
+    private
+      def print_runtime
+        started_at = Time.now
+        yield
+      ensure
+        runtime = Time.now - started_at
+        puts "  Finished all in #{sprintf("%.1f seconds", runtime)}"
+      end
+  end
+end
diff --git a/lib/mrsk/cli/build.rb b/lib/mrsk/cli/build.rb
new file mode 100644
index 00000000..715574d1
--- /dev/null
+++ b/lib/mrsk/cli/build.rb
@@ -0,0 +1,53 @@
+require "mrsk/cli/base"
+
+class Mrsk::Cli::Build < Mrsk::Cli::Base
+  desc "deliver", "Deliver a newly built app image to servers"
+  def deliver
+    invoke :push
+    invoke :pull
+  end
+
+  desc "push", "Build locally and push app image to registry"
+  def push
+    run_locally do 
+      begin
+        debug "Using builder: #{MRSK.builder.name}"
+        info "Building image may take a while (run with --verbose for progress logging)"
+        execute *MRSK.builder.push
+      rescue SSHKit::Command::Failed => e
+        error "Missing compatible builder, so creating a new one first"
+        execute *MRSK.builder.create
+        execute *MRSK.builder.push
+      end
+    end
+  end
+
+  desc "pull", "Pull app image from the registry onto servers"
+  def pull
+    on(MRSK.config.hosts) { execute *MRSK.builder.pull }
+  end
+
+  desc "create", "Create a local build setup"
+  def create
+    run_locally do
+      debug "Using builder: #{MRSK.builder.name}"
+      execute *MRSK.builder.create
+    end
+  end
+
+  desc "remove", "Remove local build setup"
+  def remove
+    run_locally do
+      debug "Using builder: #{MRSK.builder.name}"
+      execute *MRSK.builder.remove
+    end
+  end
+
+  desc "details", "Show the name of the configured builder"
+  def details
+    run_locally do
+      puts "Builder: #{MRSK.builder.name} (#{MRSK.builder.target.class.name})"
+      puts capture(*MRSK.builder.info)
+    end
+  end
+end
diff --git a/lib/mrsk/cli/main.rb b/lib/mrsk/cli/main.rb
new file mode 100644
index 00000000..607c5fca
--- /dev/null
+++ b/lib/mrsk/cli/main.rb
@@ -0,0 +1,87 @@
+require "mrsk/cli/base"
+
+require "mrsk/cli/app"
+require "mrsk/cli/build"
+require "mrsk/cli/prune"
+require "mrsk/cli/registry"
+require "mrsk/cli/server"
+require "mrsk/cli/traefik"
+
+class Mrsk::Cli::Main < Mrsk::Cli::Base
+  desc "ship", "Ship the app to servers"
+  def ship
+    print_runtime do
+      invoke "mrsk:cli:server:bootstrap"
+      invoke "mrsk:cli:registry:login"
+      invoke "mrsk:cli:build:deliver"
+      invoke "mrsk:cli:traefik:boot"
+      invoke "mrsk:cli:app:stop"
+      invoke "mrsk:cli:app:boot"
+      invoke "mrsk:cli:prune:all"
+    end
+  end
+
+  desc "reship", "Ship new version of the app to servers (without bootstrapping servers, starting Traefik, pruning, and registry login)"
+  def reship
+    print_runtime do
+      invoke "mrsk:cli:build:deliver"
+      invoke "mrsk:cli:app:stop"
+      invoke "mrsk:cli:app:boot"
+    end
+  end
+
+  desc "rollback [VERSION]", "Rollback the app to VERSION (that must already be on servers)"
+  def rollback(version)
+    invoke "mrsk:cli:app:restart"
+  end
+
+  desc "details", "Display details about Traefik and app containers"
+  def details
+    invoke "mrsk:cli:traefik:details"
+    invoke "mrsk:cli:app:details"
+  end
+
+  desc "install", "Create config stub in config/deploy.yml and binstub in bin/mrsk"
+  def install
+    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.cp_r Pathname.new(File.expand_path("templates/deploy.yml", __dir__)), deploy_file
+      puts "Created configuration file in config/deploy.yml"
+    end
+
+    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
+      `bundle binstubs mrsk`
+      puts "Created binstub file in bin/mrsk"
+    end
+  end
+
+  desc "remove", "Remove Traefik, app, and registry session from servers"
+  def remove
+    invoke "mrsk:cli:traefik:remove"
+    invoke "mrsk:cli:app:remove"
+    invoke "mrsk:cli:registry:logout"
+  end
+
+  desc "app", "Manage the application"
+  subcommand "app", Mrsk::Cli::App
+
+  desc "build", "Build the application image"
+  subcommand "build", Mrsk::Cli::Build
+
+  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 Docker"
+  subcommand "server", Mrsk::Cli::Server
+
+  desc "traefik", "Manage the Traefik load balancer"
+  subcommand "traefik", Mrsk::Cli::Traefik
+end
diff --git a/lib/mrsk/cli/prune.rb b/lib/mrsk/cli/prune.rb
new file mode 100644
index 00000000..9dea45e6
--- /dev/null
+++ b/lib/mrsk/cli/prune.rb
@@ -0,0 +1,19 @@
+require "mrsk/cli/base"
+
+class Mrsk::Cli::Prune < Mrsk::Cli::Base
+  desc "all", "Prune unused images and stopped containers"
+  def all
+    invoke :containers
+    invoke :images
+  end
+
+  desc "images", "Prune unused images older than 30 days"
+  def images
+    on(MRSK.config.hosts) { execute *MRSK.prune.images }
+  end
+
+  desc "containers", "Prune stopped containers for the service older than 3 days"
+  def containers
+    on(MRSK.config.hosts) { execute *MRSK.prune.containers }
+  end
+end
diff --git a/lib/mrsk/cli/registry.rb b/lib/mrsk/cli/registry.rb
new file mode 100644
index 00000000..716e5f5e
--- /dev/null
+++ b/lib/mrsk/cli/registry.rb
@@ -0,0 +1,14 @@
+require "mrsk/cli/base"
+
+class Mrsk::Cli::Registry < Mrsk::Cli::Base
+  desc "login", "Login to the registry locally and remotely"
+  def login
+    run_locally           { execute *MRSK.registry.login }
+    on(MRSK.config.hosts) { execute *MRSK.registry.login }
+  end
+
+  desc "logout", "Logout of the registry remotely"
+  def logout
+    on(MRSK.config.hosts) { execute *MRSK.registry.logout }
+  end
+end
diff --git a/lib/mrsk/cli/server.rb b/lib/mrsk/cli/server.rb
new file mode 100644
index 00000000..9121d63e
--- /dev/null
+++ b/lib/mrsk/cli/server.rb
@@ -0,0 +1,8 @@
+require "mrsk/cli/base"
+
+class Mrsk::Cli::Server < Mrsk::Cli::Base
+  desc "bootstrap", "Ensure Docker is installed on the servers"
+  def bootstrap
+    on(MRSK.config.hosts) { execute "which docker || apt-get install docker.io -y" }
+  end
+end
diff --git a/lib/tasks/mrsk/templates/deploy.yml b/lib/mrsk/cli/templates/deploy.yml
similarity index 88%
rename from lib/tasks/mrsk/templates/deploy.yml
rename to lib/mrsk/cli/templates/deploy.yml
index 23ebb91c..1c813442 100644
--- a/lib/tasks/mrsk/templates/deploy.yml
+++ b/lib/mrsk/cli/templates/deploy.yml
@@ -18,7 +18,5 @@ env:
 registry:
   # Specify the registry server, if you're not using Docker Hub
   # server: registry.digitalocean.com / ghcr.io / ...
-
-  # Set credentials with bin/rails credentials:edit
   username: my-user
-  password: my-password-should-go-in-credentials
+  password: my-password-should-go-somewhere-safe
diff --git a/lib/mrsk/cli/traefik.rb b/lib/mrsk/cli/traefik.rb
new file mode 100644
index 00000000..658ef7dc
--- /dev/null
+++ b/lib/mrsk/cli/traefik.rb
@@ -0,0 +1,44 @@
+require "mrsk/cli/base"
+
+class Mrsk::Cli::Traefik < Mrsk::Cli::Base
+  desc "boot", "Boot Traefik on servers"
+  def boot
+    on(MRSK.config.role(:web).hosts) { execute *MRSK.traefik.run, raise_on_non_zero_exit: false }
+  end
+
+  desc "start", "Start existing Traefik on servers"
+  def start
+    on(MRSK.config.role(:web).hosts) { execute *MRSK.traefik.start, raise_on_non_zero_exit: false }
+  end
+
+  desc "stop", "Stop Traefik on servers"
+  def stop
+    on(MRSK.config.role(:web).hosts) { execute *MRSK.traefik.stop, raise_on_non_zero_exit: false }
+  end
+
+  desc "restart", "Restart Traefik on servers"
+  def restart
+    invoke :stop
+    invoke :start
+  end
+
+  desc "details", "Display details about Traefik containers from servers"
+  def details
+    on(MRSK.config.role(:web).hosts) { |host| puts "Traefik Host: #{host}\n" + capture(*MRSK.traefik.info) + "\n\n" }
+  end
+
+  desc "logs", "Show last 100 log lines from Traefik on servers"
+  def logs
+    on(MRSK.config.hosts) { |host| puts "Traefik Host: #{host}\n" + capture(*MRSK.traefik.logs) + "\n\n" }
+  end
+
+  desc "remove", "Remove Traefik container and image from servers"
+  def remove
+    invoke :stop
+
+    on(MRSK.config.role(:web).hosts) do
+      execute *MRSK.traefik.remove_container
+      execute *MRSK.traefik.remove_image
+    end
+  end
+end
diff --git a/lib/mrsk/commander.rb b/lib/mrsk/commander.rb
index e6cffd9b..26c87b5d 100644
--- a/lib/mrsk/commander.rb
+++ b/lib/mrsk/commander.rb
@@ -6,14 +6,15 @@ require "mrsk/commands/traefik"
 require "mrsk/commands/registry"
 
 class Mrsk::Commander
-  attr_reader :config_file, :config, :verbose
+  attr_reader :config
+  attr_accessor :verbose
 
-  def initialize(config_file:, verbose: false)
-    @config_file, @verbose = config_file, verbose
+  def initialize(config_file:)
+    @config_file = config_file
   end
 
   def config
-    @config ||= Mrsk::Configuration.load_file(config_file).tap { |config| setup_with(config) }
+    @config ||= Mrsk::Configuration.load_file(@config_file).tap { |config| setup_with(config) }
   end
 
 
diff --git a/lib/mrsk/commands/app.rb b/lib/mrsk/commands/app.rb
index 7e613507..42245ddd 100644
--- a/lib/mrsk/commands/app.rb
+++ b/lib/mrsk/commands/app.rb
@@ -15,8 +15,8 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
       role.cmd
   end
 
-  def start
-    docker :start, config.service_with_version
+  def start(version: config.version)
+    docker :start, "#{config.service}-#{version}"
   end
 
   def stop
@@ -40,8 +40,8 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
       *command
   end
 
-  def console
-    "ssh -t #{config.ssh_user}@#{config.primary_host} '#{exec("bin/rails", "c", interactive: true).join(" ")}'"
+  def console(host: config.primary_host)
+    "ssh -t #{config.ssh_user}@#{host} '#{exec("bin/rails", "c", interactive: true).join(" ")}'"
   end
 
   def list_containers
diff --git a/lib/mrsk/configuration.rb b/lib/mrsk/configuration.rb
index a0e33d73..8c19808a 100644
--- a/lib/mrsk/configuration.rb
+++ b/lib/mrsk/configuration.rb
@@ -1,5 +1,7 @@
 require "active_support/ordered_options"
 require "active_support/core_ext/string/inquiry"
+require "active_support/core_ext/module/delegation"
+require "pathname"
 require "erb"
 
 class Mrsk::Configuration
@@ -91,7 +93,7 @@ class Mrsk::Configuration
   end
 
   def master_key
-    ENV["RAILS_MASTER_KEY"] || File.read(Rails.root.join("config/master.key"))
+    ENV["RAILS_MASTER_KEY"] || File.read(Pathname.new(File.expand_path("config/master.key")))
   end
 
 
diff --git a/lib/mrsk/engine.rb b/lib/mrsk/engine.rb
deleted file mode 100755
index 87f2d298..00000000
--- a/lib/mrsk/engine.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-module Mrsk
-  class Engine < ::Rails::Engine
-  end
-end
diff --git a/lib/tasks/mrsk/app.rake b/lib/tasks/mrsk/app.rake
deleted file mode 100644
index 5f8aef3f..00000000
--- a/lib/tasks/mrsk/app.rake
+++ /dev/null
@@ -1,97 +0,0 @@
-require_relative "setup"
-
-namespace :mrsk do
-  namespace :app do
-    desc "Run app on servers (or start them if they've already been run)"
-    task :run do
-      MRSK.config.roles.each do |role|
-        on(role.hosts) do |host|
-          begin
-            execute *MRSK.app.run(role: role.name)
-          rescue SSHKit::Command::Failed => e
-            if e.message =~ /already in use/
-              error "Container with same version already deployed on #{host}, starting that instead"
-              execute *MRSK.app.start, host: host
-            else
-              raise
-            end
-          end
-        end
-      end
-    end
-
-    desc "Start existing app on servers (use VERSION=<git-hash> to designate which version)"
-    task :start do
-      on(MRSK.config.hosts) { execute *MRSK.app.start, raise_on_non_zero_exit: false }
-    end
-
-    desc "Stop app on servers"
-    task :stop do
-      on(MRSK.config.hosts) { execute *MRSK.app.stop, raise_on_non_zero_exit: false }
-    end
-
-    desc "Start app on servers (use VERSION=<git-hash> to designate which version)"
-    task restart: %i[ stop start ]
-
-    desc "Display information about app containers"
-    task :info do
-      on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.info) + "\n\n" }
-    end
-
-    desc "Execute a custom task on servers passed in as CMD='bin/rake some:task'"
-    task :exec do
-      on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.exec(ENV["CMD"])) + "\n\n" }
-    end
-
-    desc "Start Rails Console on primary host"
-    task :console do
-      puts "Launching Rails console on #{MRSK.config.primary_host}..."
-      exec app.console
-    end
-
-    namespace :exec do
-      desc "Execute Rails command on servers, like CMD='runner \"puts %(Hello World)\""
-      task :rails do
-        on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.exec("bin/rails", ENV["CMD"])) + "\n\n" }
-      end
-
-      desc "Execute a custom task on the first defined server"
-      task :once do
-        on(MRSK.config.primary_host) { puts capture(*MRSK.app.exec(ENV["CMD"])) }
-      end
-
-      namespace :once do
-        desc "Execute Rails command on the first defined server, like CMD='runner \"puts %(Hello World)\""
-        task :rails do
-          on(MRSK.config.primary_host) { puts capture(*MRSK.app.exec("bin/rails", ENV["CMD"])) }
-        end
-      end
-    end
-
-    desc "List all the app containers currently on servers"
-    task :containers do
-      on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.list_containers) + "\n\n" }
-    end
-
-    desc "Show last 100 log lines from app on servers"
-    task :logs do
-      # FIXME: Catch when app containers aren't running
-      on(MRSK.config.hosts) { |host| puts "App Host: #{host}\n" + capture(*MRSK.app.logs) + "\n\n" }
-    end
-
-    desc "Remove app containers and images from servers"
-    task remove: %w[ remove:containers remove:images ]
-
-    namespace :remove do
-      desc "Remove app containers from servers"
-      task :containers do
-        on(MRSK.config.hosts) { execute *MRSK.app.remove_containers }
-      end
-      
-      desc "Remove app images from servers"
-      task :images do
-        on(MRSK.config.hosts) { execute *MRSK.app.remove_images }
-      end
-    end
-  end
-end
diff --git a/lib/tasks/mrsk/build.rake b/lib/tasks/mrsk/build.rake
deleted file mode 100644
index cf5bc639..00000000
--- a/lib/tasks/mrsk/build.rake
+++ /dev/null
@@ -1,52 +0,0 @@
-require_relative "setup"
-
-namespace :mrsk do
-  namespace :build do
-    desc "Deliver a newly built app image to servers"
-    task deliver: %i[ push pull ]
-
-    desc "Build locally and push app image to registry"
-    task :push do
-      run_locally do 
-        begin
-          debug "Using builder: #{MRSK.builder.name}"
-          info "Building image may take a while (run with VERBOSE=1 for progress logging)"
-          execute *MRSK.builder.push
-        rescue SSHKit::Command::Failed => e
-          error "Missing compatible builder, so creating a new one first"
-          execute *MRSK.builder.create
-          execute *MRSK.builder.push
-        end
-      end unless ENV["VERSION"]
-    end
-
-    desc "Pull app image from the registry onto servers"
-    task :pull do
-      on(MRSK.config.hosts) { execute *MRSK.builder.pull }
-    end
-
-    desc "Create a local build setup"
-    task :create do
-      run_locally do
-        debug "Using builder: #{MRSK.builder.name}"
-        execute *MRSK.builder.create
-      end
-    end
-
-    desc "Remove local build setup"
-    task :remove do
-      run_locally do
-        debug "Using builder: #{MRSK.builder.name}"
-        execute *MRSK.builder.remove
-      end
-    end
-
-    desc "Show the name of the configured builder"
-    task :info do
-      run_locally do
-        puts "Builder: #{MRSK.builder.name} (#{MRSK.builder.target.class.name})"
-        puts capture(*MRSK.builder.info)
-      end
-    end
-  end
-end
diff --git a/lib/tasks/mrsk/mrsk.rake b/lib/tasks/mrsk/mrsk.rake
deleted file mode 100644
index 748dd18b..00000000
--- a/lib/tasks/mrsk/mrsk.rake
+++ /dev/null
@@ -1,37 +0,0 @@
-require_relative "setup"
-
-namespace :mrsk do
-  desc "Ship the app to servers that will have Docker installed if missing"
-  task ship: %w[ server:bootstrap deploy ]
-
-  desc "Push the latest version of the app, ensure Traefik is running, then restart app"
-  task deploy: %w[ registry:login build:deliver traefik:run app:stop app:run prune ]
-
-  desc "Rollback to VERSION=x that was already run as a container on servers"
-  task rollback: %w[ app:restart ]
-
-  desc "Display information about Traefik and app containers"
-  task info: %w[ traefik:info app:info ]
-
-  desc "Create config stub in config/deploy.yml"
-  task :init do
-    require "fileutils"
-
-    if (deploy_file = Rails.root.join("config/deploy.yml")).exist?
-      puts "Config file already exists in config/deploy.yml (remove first to create a new one)"
-    else
-      FileUtils.cp_r Pathname.new(File.expand_path("templates/deploy.yml", __dir__)), deploy_file
-      puts "Created configuration file in config/deploy.yml"
-    end
-
-    if (binstub = Rails.root.join("bin/mrsk")).exist?
-      puts "Binstub already exists in bin/mrsk (remove first to create a new one)"
-    else
-      FileUtils.cp_r Pathname.new(File.expand_path("templates/mrsk", __dir__)), binstub
-      puts "Created binstub file in bin/mrsk"
-    end
-  end
-
-  desc "Remove Traefik, app, and registry session from servers"
-  task remove: %w[ traefik:remove app:remove registry:logout ]
-end
diff --git a/lib/tasks/mrsk/prune.rake b/lib/tasks/mrsk/prune.rake
deleted file mode 100644
index 2c0f3a36..00000000
--- a/lib/tasks/mrsk/prune.rake
+++ /dev/null
@@ -1,18 +0,0 @@
-require_relative "setup"
-
-namespace :mrsk do
-  desc "Prune unused images and stopped containers"
-  task prune: %w[ prune:containers prune:images ]
-
-  namespace :prune do
-    desc "Prune unused images older than 30 days"
-    task :images do
-      on(MRSK.config.hosts) { execute *MRSK.prune.images }
-    end
-
-    desc "Prune stopped containers for the service older than 3 days"
-    task :containers do
-      on(MRSK.config.hosts) { execute *MRSK.prune.containers }
-    end
-  end
-end
diff --git a/lib/tasks/mrsk/registry.rake b/lib/tasks/mrsk/registry.rake
deleted file mode 100644
index 773cd28f..00000000
--- a/lib/tasks/mrsk/registry.rake
+++ /dev/null
@@ -1,16 +0,0 @@
-require_relative "setup"
-
-namespace :mrsk do
-  namespace :registry do
-    desc "Login to the registry locally and remotely"
-    task :login do
-      run_locally           { execute *MRSK.registry.login }
-      on(MRSK.config.hosts) { execute *MRSK.registry.login }
-    end
-
-    desc "Logout of the registry remotely"
-    task :logout do
-      on(MRSK.config.hosts) { execute *MRSK.registry.logout }
-    end
-  end
-end
diff --git a/lib/tasks/mrsk/server.rake b/lib/tasks/mrsk/server.rake
deleted file mode 100644
index 68747b0d..00000000
--- a/lib/tasks/mrsk/server.rake
+++ /dev/null
@@ -1,10 +0,0 @@
-require_relative "setup"
-
-namespace :mrsk do
-  namespace :server do
-    desc "Setup Docker on the remote servers"
-    task :bootstrap do
-      on(MRSK.config.hosts) { execute "which docker || apt-get install docker.io -y" }
-    end
-  end
-end
diff --git a/lib/tasks/mrsk/setup.rb b/lib/tasks/mrsk/setup.rb
deleted file mode 100644
index 4ff2eb23..00000000
--- a/lib/tasks/mrsk/setup.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-require "sshkit"
-require "sshkit/dsl"
-
-include SSHKit::DSL
-
-MRSK = Mrsk::Commander.new config_file: Rails.root.join("config/deploy.yml"), verbose: ENV["VERBOSE"]
diff --git a/lib/tasks/mrsk/templates/mrsk b/lib/tasks/mrsk/templates/mrsk
deleted file mode 100755
index 6d11b783..00000000
--- a/lib/tasks/mrsk/templates/mrsk
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-
-if [ "${*}" == "" ]; then
-  # Improve so list matches
-  exec bin/rake -T mrsk
-else
-  exec bin/rake "mrsk:$@"
-fi
diff --git a/lib/tasks/mrsk/traefik.rake b/lib/tasks/mrsk/traefik.rake
deleted file mode 100644
index 3716283b..00000000
--- a/lib/tasks/mrsk/traefik.rake
+++ /dev/null
@@ -1,41 +0,0 @@
-require_relative "setup"
-
-namespace :mrsk do
-  namespace :traefik do
-    desc "Run Traefik on servers"
-    task :run do
-      on(MRSK.config.role(:web).hosts) { execute *MRSK.traefik.run, raise_on_non_zero_exit: false }
-    end
-
-    desc "Start existing Traefik on servers"
-    task :start do
-      on(MRSK.config.role(:web).hosts) { execute *MRSK.traefik.start, raise_on_non_zero_exit: false }
-    end
-
-    desc "Stop Traefik on servers"
-    task :stop do
-      on(MRSK.config.role(:web).hosts) { execute *MRSK.traefik.stop, raise_on_non_zero_exit: false }
-    end
-
-    desc "Restart Traefik on servers"
-    task restart: %i[ stop start ]
-
-    desc "Display information about Traefik containers from servers"
-    task :info do
-      on(MRSK.config.role(:web).hosts) { |host| puts "Traefik Host: #{host}\n" + capture(*MRSK.traefik.info) + "\n\n" }
-    end
-
-    desc "Show last 100 log lines from Traefik on servers"
-    task :logs do
-      on(MRSK.config.hosts) { |host| puts "Traefik Host: #{host}\n" + capture(*MRSK.traefik.logs) + "\n\n" }
-    end
-
-    desc "Remove Traefik container and image from servers"
-    task remove: %i[ stop ] do
-      on(MRSK.config.role(:web).hosts) do
-        execute *MRSK.traefik.remove_container
-        execute *MRSK.traefik.remove_image
-      end
-    end
-  end
-end
diff --git a/mrsk.gemspec b/mrsk.gemspec
index 090c8604..8bbc829b 100644
--- a/mrsk.gemspec
+++ b/mrsk.gemspec
@@ -10,7 +10,9 @@ Gem::Specification.new do |spec|
   spec.license     = "MIT"
 
   spec.files = Dir["lib/**/*", "MIT-LICENSE", "README.md"]
+  spec.executables = %w[ mrsk ]
 
-  spec.add_dependency "railties", ">= 7.0.0"
+  spec.add_dependency "activesupport", ">= 7.0"
   spec.add_dependency "sshkit", "~> 1.21"
+  spec.add_dependency "thor", "~> 1.2"
 end