Add comprehensive pytest integration test suite and GitHub Actions CI

Co-authored-by: ngocbd <439333+ngocbd@users.noreply.github.com>

Author: Copilot

.github/workflows/integration-tests.yml

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+name: Integration Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_BACKTRACE: 1
+
+jobs:
+  integration-tests:
+    runs-on: ubuntu-latest
+    
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_DB: container_engine_test
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: password
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
+      
+      redis:
+        image: redis:7-alpine
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 6379:6379
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        components: rustfmt, clippy
+
+    - name: Cache Rust dependencies
+      uses: actions/cache@v4
+      with:
+        path: |
+          ~/.cargo/registry
+          ~/.cargo/git
+          target/
+        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-cargo-
+
+    - name: Install SQLx CLI
+      run: cargo install sqlx-cli --no-default-features --features postgres
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.11'
+        cache: 'pip'
+
+    - name: Install Python dependencies
+      run: |
+        pip install --upgrade pip
+        pip install -r tests/requirements.txt
+
+    - name: Check Rust formatting
+      run: cargo fmt --all -- --check
+
+    - name: Run Rust linter
+      run: cargo clippy --all-targets --all-features -- -D warnings
+
+    - name: Build Rust application
+      run: cargo build --verbose
+
+    - name: Set up test environment
+      run: |
+        # Set environment variables for the application
+        echo "DATABASE_URL=postgresql://postgres:password@localhost:5432/container_engine_test" >> $GITHUB_ENV
+        echo "REDIS_URL=redis://localhost:6379" >> $GITHUB_ENV
+        echo "PORT=3000" >> $GITHUB_ENV
+        echo "JWT_SECRET=test-jwt-secret-key-for-github-actions" >> $GITHUB_ENV
+        echo "JWT_EXPIRES_IN=3600" >> $GITHUB_ENV
+        echo "API_KEY_PREFIX=ce_test_" >> $GITHUB_ENV
+        echo "KUBERNETES_NAMESPACE=test" >> $GITHUB_ENV
+        echo "DOMAIN_SUFFIX=test.local" >> $GITHUB_ENV
+        echo "RUST_LOG=container_engine=info,tower_http=info" >> $GITHUB_ENV
+
+    - name: Run database migrations
+      run: |
+        sqlx migrate run --database-url postgresql://postgres:password@localhost:5432/container_engine_test
+
+    - name: Start Container Engine server in background
+      run: |
+        cargo run &
+        echo $! > server.pid
+        
+        # Wait for server to be ready
+        timeout 60 bash -c 'until curl -f http://localhost:3000/health; do sleep 2; done'
+
+    - name: Run integration tests
+      run: |
+        python -m pytest tests/integrate/ -v --tb=short --durations=10
+      timeout-minutes: 15
+
+    - name: Stop server
+      if: always()
+      run: |
+        if [ -f server.pid ]; then
+          kill $(cat server.pid) || true
+          rm server.pid
+        fi
+
+    - name: Upload test results
+      if: always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: test-results
+        path: |
+          pytest-report.html
+          .pytest_cache/
+        retention-days: 7
+
+    - name: Test Summary
+      if: always()
+      run: |
+        echo "## Integration Test Results" >> $GITHUB_STEP_SUMMARY
+        echo "Integration tests completed for Container Engine API" >> $GITHUB_STEP_SUMMARY
+        if [ ${{ job.status }} == 'success' ]; then
+          echo "✅ All tests passed!" >> $GITHUB_STEP_SUMMARY
+        else
+          echo "❌ Some tests failed. Check the logs above." >> $GITHUB_STEP_SUMMARY
+        fi

pytest.ini

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+[tool:pytest]
+# Test discovery
+testpaths = tests/integrate
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+
+# Markers
+markers =
+    integration: marks tests as integration tests (deselect with '-m "not integration"')
+    slow: marks tests as slow (deselect with '-m "not slow"')
+    auth: marks tests that require authentication
+    deployment: marks tests related to deployment functionality
+    monitoring: marks tests related to monitoring (logs, metrics, status)
+    domains: marks tests related to domain management
+
+# Test output
+addopts = 
+    --strict-markers
+    --strict-config
+    --verbose
+    --tb=short
+    --durations=10
+    -ra
+
+# Timeout
+timeout = 300
+
+# Coverage (if pytest-cov is installed)
+# addopts = --cov=tests --cov-report=term-missing --cov-report=html
+
+# Logging
+log_cli = true
+log_cli_level = INFO
+log_cli_format = %(asctime)s [%(levelname)8s] %(name)s: %(message)s
+log_cli_date_format = %Y-%m-%d %H:%M:%S
+
+# Filter warnings
+filterwarnings =
+    ignore::DeprecationWarning
+    ignore::PendingDeprecationWarning

tests/.env.test

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+# Test environment configuration for Container Engine integration tests
+
+# Server settings
+TEST_BASE_URL=http://localhost:3000
+
+# Database settings (for test isolation)
+TEST_DB_HOST=localhost
+TEST_DB_PORT=5432
+TEST_DB_USER=postgres
+TEST_DB_PASSWORD=password
+TEST_DB_NAME=container_engine_test
+
+# Redis settings
+TEST_REDIS_HOST=localhost
+TEST_REDIS_PORT=6379
+
+# Docker settings
+DOCKER_HOST=unix:///var/run/docker.sock