build.yml

name: "Build METexpress"
on:
  push:
    branches: [main, development]
    tags:
      - 'v[0-9]+.[0-9]+.[0-9]+'
      - 'v[0-9]+.[0-9]+.[0-9]+-rc[0-9]+'
  pull_request:
    branches: [main, development]
env:
  DEV_REGISTRY: ghcr.io/dtcenter/metexpress/development

jobs:
  lint:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: true
      matrix:
        app: 
          - met-anomalycor
          - met-cyclone
          - met-ensemble
          - met-precip
          - met-object
          - met-surface
          - met-upperair
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          submodules: recursive
      - uses: actions/setup-node@v4
        with:
          node-version: '14'  # This needs to match the version used by our Meteor release
      - name: Install dependencies
        working-directory: apps/${{ matrix.app }}
        run: npm ci
      - name: Lint
        working-directory: apps/${{ matrix.app }}
        run: npm run lint

  build:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    permissions:
      packages: write
      security-events: write
    strategy:
      fail-fast: true
      matrix:
        app: 
          - met-anomalycor
          - met-cyclone
          - met-ensemble
          - met-precip
          - met-object
          - met-surface
          - met-upperair
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Set env variables
        shell: bash
        # Note - this doesn't support branch names with "/" in them
        run: |
          DATE=$(git show -s --format=%cd --date=format:'%Y-%m-%d.%H:%M:%S.%z' ${{ github.sha }})
          if [[ "${GITHUB_EVENT_NAME}" == "pull_request" ]]; then
            # PR build
            echo "BRANCH=${GITHUB_HEAD_REF}" >> $GITHUB_ENV
            echo "VERSION=dev-${{ github.sha }}-$DATE" >> $GITHUB_ENV
          elif [[ "${GITHUB_EVENT_NAME}" == "push" ]]; then
            # Handle differences between branches/tags
            if [[ "${GITHUB_REF}" == *"heads"* ]]; then
              # Branch build
              echo "BRANCH=${GITHUB_REF#refs/heads/}" >> $GITHUB_ENV
              echo "VERSION=dev-${{ github.sha }}-$DATE" >> $GITHUB_ENV
            elif [[ "${GITHUB_REF}" == *"tags"* ]]; then
              # Tag build
              echo "BRANCH=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
              echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
            else
              echo "ERROR: Unanticipated Git Ref"
              exit 1
            fi
          else
            echo "ERROR: Unanticipated GitHub Event"
            exit 1
          fi

      - name: Create lowercase app names
        # Docker tags must be lowercase
        env: 
          APP: '${{ matrix.app }}'
        run: |
          echo "APP_LOWERCASE=${APP,,}" >> $GITHUB_ENV

      - name: Build image
        run: |
          docker build \
            --build-arg APPNAME=${{ matrix.app }} \
            --build-arg BUILDVER="${{ env.VERSION }}" \
            --build-arg COMMITBRANCH=${{ env.BRANCH }} \
            --build-arg COMMITSHA=${{ github.sha }} \
            -t ${{ env.DEV_REGISTRY }}/${{ env.APP_LOWERCASE }}:${{ env.BRANCH }} \
            .
      - name: Scan image with Trivy
        uses: aquasecurity/trivy-action@master
        with:
          image-ref: '${{ env.DEV_REGISTRY }}/${{ env.APP_LOWERCASE }}:${{ env.BRANCH }}'
          format: 'sarif'
          output: 'trivy-results-${{ env.APP_LOWERCASE }}.sarif'
          ignore-unfixed: true

      - name: Upload Trivy scan results to GitHub Security tab
        uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: 'trivy-results-${{ env.APP_LOWERCASE }}.sarif'

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Push image to dev registry
        run: |
            docker push ${{ env.DEV_REGISTRY }}/${{ env.APP_LOWERCASE }}:${{ env.BRANCH }}