Matrix Builds GH Workflow - Failed Case Example

.github/workflows/matrix-build.yml

@@ -0,0 +1,67 @@
+name: Matrix Build Workflow
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: ["3.0.3"]
+        # ruby: ["3.0.3", "3.1.0"]
+
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_USER: ${{ secrets.DATABASE_USERNAME }}
+          POSTGRES_PASSWORD: ${{ secrets.DATABASE_PASSWORD }}
+          POSTGRES_DB: myapp_test
+        options: >-
+          --mount type=tmpfs,destination=/var/lib/postgresql/data
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+
+    # Install dependencies
+    - name: Install dependencies
+      run: |
+        gem install bundler
+        bundle install
+
+    # Set environment variables for database connection
+    - name: Set database connection environment variables
+      run: |
+        echo "DATABASE_URL=postgres://${{ secrets.DATABASE_USERNAME }}:${{ secrets.DATABASE_PASSWORD }}@localhost:5432/myapp_test" >> $GITHUB_ENV
+        echo "RAILS_ENV=test" >> $GITHUB_ENV
+
+    # Create the database
+    - name: Create the database
+      run: |
+        bin/rails db:create
+
+    # Run migrations
+    - name: Run migrations
+      run: |
+        bin/rails db:migrate
+
+    # Run Tests
+    - name: Run tests
+      run: |
+        bin/rails test