Merge pull request #224 from basecamp/integration-tests

test/integration/deploy_test.rb

@@ -0,0 +1,42 @@
+require "net/http"
+
+class DeployTest < ActiveSupport::TestCase
+
+  setup do
+    docker_compose "up --build --force-recreate -d"
+    sleep 5
+  end
+
+  teardown do
+    docker_compose "down -v"
+  end
+
+  test "deploy" do
+    assert_app_is_down
+
+    mrsk :deploy
+
+    assert_app_is_up
+  end
+
+  private
+    def docker_compose(*commands)
+      system("cd test/integration && docker compose #{commands.join(" ")}")
+    end
+
+    def mrsk(*commands)
+      docker_compose("exec deployer mrsk #{commands.join(" ")}")
+    end
+
+    def assert_app_is_down
+      assert_equal "502", app_response.code
+    end
+
+    def assert_app_is_up
+      assert_equal "200", app_response.code
+    end
+
+    def app_response
+      Net::HTTP.get_response(URI.parse("http://localhost:12345"))
+    end
+end

test/integration/docker-compose.yml

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+version: "3.7"
+name: "mrsk-test"
+
+volumes:
+  shared:
+
+services:
+  shared:
+    build:
+      context: docker/shared
+    volumes:
+      - shared:/shared
+
+  deployer:
+    privileged: true
+    build:
+      context: docker/deployer
+    volumes:
+      - ../..:/mrsk
+      - shared:/shared
+
+  registry:
+    build:
+      context: docker/registry
+    environment:
+      - REGISTRY_HTTP_ADDR=0.0.0.0:4443
+      - REGISTRY_HTTP_TLS_CERTIFICATE=/certs/domain.crt
+      - REGISTRY_HTTP_TLS_KEY=/certs/domain.key
+    volumes:
+      - shared:/shared
+
+  vm1:
+    privileged: true
+    build:
+      context: docker/vm
+    volumes:
+      - shared:/shared
+
+  vm2:
+    privileged: true
+    build:
+      context: docker/vm
+    volumes:
+      - shared:/shared
+
+  load_balancer:
+    build:
+      context: docker/load_balancer
+    ports:
+      - "12345:80"

test/integration/docker/deployer/Dockerfile

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+FROM ruby:3.2
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y ca-certificates openssh-client curl gnupg docker.io
+
+RUN install -m 0755 -d /etc/apt/keyrings
+RUN curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+RUN chmod a+r /etc/apt/keyrings/docker.gpg
+RUN echo \
+  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
+  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
+  tee /etc/apt/sources.list.d/docker.list > /dev/null
+
+RUN apt-get update && apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
+
+COPY boot.sh .
+COPY app/ .
+
+RUN ln -s /shared/ssh /root/.ssh
+RUN mkdir -p /etc/docker/certs.d/registry:4443 && ln -s /shared/certs/domain.crt /etc/docker/certs.d/registry:4443/ca.crt
+
+RUN git config --global user.email "deployer@example.com"
+RUN git config --global user.name "Deployer"
+RUN git init && git add . && git commit -am "Initial version"
+
+CMD ["./boot.sh"]

test/integration/docker/deployer/app/Dockerfile

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+FROM nginx:1-alpine-slim
+
+COPY default.conf /etc/nginx/conf.d/default.conf

test/integration/docker/deployer/app/config/deploy.yml

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+service: app
+image: app
+servers:
+  - vm1
+  - vm2
+registry:
+  server: registry:4443
+  username: root
+  password: root
+builder:
+  multiarch: false
+healthcheck:
+  path: /
+  port: 80

test/integration/docker/deployer/app/default.conf

@@ -0,0 +1,17 @@
+server {
+    listen       80;
+    listen  [::]:80;
+    server_name  localhost;
+
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+    }
+
+    # redirect server error pages to the static page /50x.html
+    #
+    error_page   500 502 503 504  /50x.html;
+    location = /50x.html {
+        root   /usr/share/nginx/html;
+    }
+}

test/integration/docker/deployer/boot.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+cd /mrsk && gem build mrsk.gemspec -o /tmp/mrsk.gem && gem install /tmp/mrsk.gem
+
+dockerd &
+
+trap "pkill -f sleep" term
+
+sleep infinity & wait

test/integration/docker/load_balancer/Dockerfile

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+FROM nginx:1-alpine-slim
+
+COPY default.conf /etc/nginx/conf.d/default.conf
+

test/integration/docker/load_balancer/default.conf

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+upstream loadbalancer {
+  server vm1:80;
+  server vm2:80;
+}
+
+server {
+  listen 80;
+
+  location / {
+    proxy_pass http://loadbalancer;
+  }
+}

test/integration/docker/registry/Dockerfile

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+FROM registry
+
+COPY boot.sh .
+
+RUN ln -s /shared/certs /certs
+
+ENTRYPOINT ["./boot.sh"]

test/integration/docker/registry/boot.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+while [ ! -f /certs/domain.crt ]; do sleep 1; done
+
+trap "pkill -f registry" term
+
+/entrypoint.sh /etc/docker/registry/config.yml & wait

test/integration/docker/shared/Dockerfile

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+FROM ubuntu:22.10
+
+WORKDIR /work
+
+RUN apt-get update && apt-get -y install openssh-client openssl
+
+RUN mkdir ssh && \
+  ssh-keygen -t rsa -f ssh/id_rsa -N ""
+
+COPY registry-dns.conf .
+
+RUN mkdir certs && openssl req -newkey rsa:4096 -nodes -sha256 -keyout certs/domain.key   -x509 -days 365 -out certs/domain.crt   -subj '/CN=registry' -extensions EXT -config registry-dns.conf
+
+CMD ["bash", "-c", "cp -r * /shared"]

test/integration/docker/shared/registry-dns.conf

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+[dn]
+CN=registry
+[req]
+distinguished_name = dn
+[EXT]
+subjectAltName=DNS:registry
+keyUsage=digitalSignature

test/integration/docker/vm/Dockerfile

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+FROM ubuntu:22.10
+
+WORKDIR /work
+
+RUN apt-get update && apt-get -y install openssh-client openssh-server docker.io
+
+RUN mkdir /root/.ssh && ln -s /shared/ssh/id_rsa.pub /root/.ssh/authorized_keys
+RUN mkdir -p /etc/docker/certs.d/registry:4443 && ln -s /shared/certs/domain.crt /etc/docker/certs.d/registry:4443/ca.crt
+
+COPY boot.sh .
+
+CMD ["./boot.sh"]

test/integration/docker/vm/boot.sh

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+#!/bin/bash
+
+while [ ! -f /root/.ssh/authorized_keys ]; do echo "Waiting for ssh keys"; sleep 1; done
+
+service ssh restart
+
+dockerd &
+
+trap "pkill -f sleep" term
+
+sleep infinity & wait