Fix MySQL CI setup (#1)

Use Docker

.github/workflows/main.yml

@@ -12,21 +12,8 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
-    services:
-      mysql:
-        image: mysql:8.0
-        env:
-          MYSQL_ALLOW_EMPTY_PASSWORD: yes
-          MYSQL_DATABASE: trilogy-aurora-test
-        ports:
-          - 3306
-        options: >-
-          --health-cmd="mysqladmin ping"
-          --health-interval=10s
-          --health-timeout=5s
-          --health-retries=3
     name: Test Ruby ${{ matrix.ruby }}
-    timeout-minutes: 10
+    timeout-minutes: 5
     strategy:
       fail-fast: false
       matrix:
@@ -35,15 +22,17 @@ jobs:
           - '3.1'
           - '3.2'
 
+    env:
+      RUBY_VERSION: ${{ matrix.ruby }}
+
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Ruby
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: ${{ matrix.ruby }}
-        bundler-cache: true
-    - name: Run tests
-      run: bundle exec rake spec
+    - name: Docker Build
+      run: docker-compose build --build-arg RUBY_VERSION=$RUBY_VERSION
+    - name: Docker MySQL Healthcheck
+      run: docker-compose run --rm app echo "MySQL Healthy"
+    - name: Run tests with Docker
+      run: docker-compose run --rm app ./bin/test
 
   rubocop:
     runs-on: ubuntu-latest

Dockerfile

@@ -1,4 +1,6 @@
-FROM ruby:3.2-alpine
+ARG RUBY_VERSION=3.2
+
+FROM ruby:${RUBY_VERSION}-alpine
 
 # Create application directory.
 RUN mkdir /app

docker-compose.yml

@@ -9,9 +9,15 @@ services:
     volumes:
       - .:/app
     depends_on:
-      - mysql
+      mysql:
+        condition: service_healthy
   mysql:
     image: mysql:8.0
     environment:
       MYSQL_ROOT_PASSWORD: ''
-      MYSQL_ALLOW_EMPTY_PASSWORD: true
+      MYSQL_ALLOW_EMPTY_PASSWORD: 1
+    healthcheck:
+      test: ["CMD-SHELL", "mysqladmin ping -h mysql"]
+      interval: 10s
+      timeout: 5s
+      retries: 3

spec/trilogy_aurora_spec.rb

@@ -5,9 +5,9 @@
 
   let :trilogy do
     Trilogy.new(
-      host: ENV.fetch("TEST_DB_HOST", nil),
-      username: ENV.fetch("TEST_DB_USER", nil),
-      password: ENV.fetch("TEST_DB_PASS", nil),
+      host: ENV.fetch("TEST_DB_HOST"),
+      username: ENV.fetch("TEST_DB_USER"),
+      password: ENV.fetch("TEST_DB_PASS"),
       aurora_max_retry: 10,
       aurora_disconnect_on_readonly: aurora_disconnect_on_readonly
     )