build-test-scan-push-images.yml

name: Build, test, scan and push images

on:
  push:
    branches:
      - develop
    
    tags:
      - v*.*.*

  pull_request:
    branches:
      - develop
      - main

  workflow_dispatch:
env:
  REGISTRY: ghcr.io
  NAMESPACE: austriandatalab
  SUB_NAMESPACE: indiegamestream
jobs:
  build-push-image:
    strategy:
      fail-fast: false
      matrix:
        image:
          # Add your images here (name of the component + directory that contains Dockerfile)
          - name: frontend
            directory: frontend
          - name: api
            directory: api
          - name: operator
            directory: operator
    runs-on: ubuntu-latest
    permissions:
      contents: write
      packages: write
      security-events: write # for github/codeql-action/upload-sarif to upload SARIF results

    name: ${{ matrix.image.name }}

    steps:
      - uses: actions/checkout@v4

      - name: Check if test stage exists
        run: |
          if grep -q -i -E '^\s*FROM\s+[^\s]+\s+AS\s+test\s*$' ${{ matrix.image.directory }}/Dockerfile ; then
            echo "Test stage exists, continuing with tests."
            echo "test_stage_exists=true" >> "$GITHUB_OUTPUT"
          else
            echo "Test stage does not exist, skipping tests."
            echo "test_stage_exists=false" >> "$GITHUB_OUTPUT"
          fi
        id: check_test_stage

      - name: Build Docker image to test stage
        if: steps.check_test_stage.outputs.test_stage_exists == 'true'
        uses: docker/build-push-action@v5
        with:
          context: ${{ matrix.image.directory }}
          file: ${{ matrix.image.directory }}/Dockerfile
          push: false
          tags: ${{ env.REGISTRY }}/${{ env.NAMESPACE }}/${{ env.SUB_NAMESPACE }}/${{ matrix.image.name }}-test:${{ github.sha }}
          target: test

      - name: Run test stage
        if: steps.check_test_stage.outputs.test_stage_exists == 'true'
        run: |
          docker run --rm ${{ env.REGISTRY }}/${{ env.NAMESPACE }}/${{ env.SUB_NAMESPACE }}/${{ matrix.image.name }}-test:${{ github.sha }}

      - name: Login to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.NAMESPACE }}/${{ env.SUB_NAMESPACE }}/${{ matrix.image.name }}
          tags: |
            type=ref,event=branch
            type=ref,event=tag
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=sha,format=long

      - name: Build Docker image
        uses: docker/build-push-action@v5
        with:
          context: ${{ matrix.image.directory }}
          file: ${{ matrix.image.directory }}/Dockerfile
          push: false
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@0.21.0
        with:
          image-ref: '${{ fromJSON(steps.meta.outputs.json).tags[0] }}'
          format: 'sarif'
          output: 'trivy-results.sarif'
          limit-severities-for-sarif: true
          exit-code: '1'
          severity: 'CRITICAL,HIGH'

      - name: Push Docker image
        uses: docker/build-push-action@v5
        with:
          context: ${{ matrix.image.directory }}
          file: ${{ matrix.image.directory }}/Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
      
      - name: Upload Trivy scan results to GitHub Security tab
        if: always()
        uses: github/codeql-action/upload-sarif@v2
        with:
          sarif_file: 'trivy-results.sarif'
          category: ${{ matrix.image.name }}