LAMP-app-gateway/.github/workflows/callable-build-docker.yml at master · bracketsoftware/LAMP-app-gateway · GitHub

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name: "Task: Build"
on:
  workflow_call:
    inputs:
      override_sha:
        description: 'Optionally force checkout of a specific sha'
        default: ''
        type: string
      push:
        description: 'To push or not to push'
        required: true
        type: boolean
    outputs:
      container_image_digest:
        description: "The sha256 digest of the built container image"
        value: ${{ jobs.docker.outputs.digest }}

permissions:
  packages: write
  contents: read
  attestations: write
  id-token: write

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  docker:
    runs-on: ubuntu-24.04
    outputs:
      digest: ${{ steps.push.outputs.digest }}
    steps:
      - uses: actions/checkout@v4
        if: ${{ inputs.override_sha != '' }}
        with:
          fetch-depth: 1
          ref: ${{ inputs.override_sha }}

      - uses: actions/checkout@v4
        if: ${{ inputs.override_sha == '' }}
        with:
          fetch-depth: 1

      - name: Configuration
        id: config
        run: |
          REPOSITORY_OWNER=$(tr "[:upper:]" "[:lower:]" <<< "${{ github.repository_owner }}")
          echo "REPOSITORY_OWNER=${REPOSITORY_OWNER}" >> "$GITHUB_OUTPUT"

          REPOSITORY_NAME=$(tr "[:upper:]" "[:lower:]" <<< "${{ github.event.repository.name }}")
          echo "REPOSITORY_NAME=${REPOSITORY_NAME}" >> "$GITHUB_OUTPUT"

          TARGET_IMAGE="ghcr.io/${REPOSITORY_OWNER}/${REPOSITORY_NAME}"
          echo "TARGET_IMAGE=${TARGET_IMAGE}" >> "$GITHUB_OUTPUT"

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

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          context: workflow
          images: ${{ steps.config.outputs.TARGET_IMAGE }}
          tags: |-
            ${{ inputs.override_sha == '' && 'type=ref,event=branch' || '' }}
            ${{ inputs.override_sha == '' && 'type=ref,event=tag' || '' }}
            ${{ inputs.override_sha == '' && 'type=ref,event=pr' || '' }}
            ${{ inputs.override_sha == '' && '# skip raw sha' || format('type=raw,value=sha-{0}', inputs.override_sha) }}
          labels: |-
            ${{ inputs.override_sha != '' && 'org.opencontainers.image.version=unknown' }}
            ${{ inputs.override_sha != '' && format('org.opencontainers.image.revision={0}', inputs.override_sha) }}
          flavor: |
            latest=false

      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          push: ${{ inputs.push }}
          platforms: "linux/amd64"
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Generate artifact attestation
        uses: actions/attest-build-provenance@v2
        if: ${{ inputs.push }}
        with:
          subject-name: ${{ steps.config.outputs.TARGET_IMAGE }}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: ${{ inputs.push }}