ffmpeg-debian/.github/workflows/on_merge_to_runtime_image.yml at master · denismakogon/ffmpeg-debian · GitHub

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name: on_merge_to_runtime_image

on:
  push:
    branches: [ master ]
    tags: [ 'v*.*.*' ]
    paths:
      - 'runtime/Dockerfile'

env:
  REGISTRY: ghcr.io
  FFMPEG_VERSION: "5.0.1"
  RUNTIME_IMAGE: "runtime"
  BASE_IMAGE: "base"
  BUILD_IMAGE: "build"
  IMAGE_NAME: ${{ github.repository }}

jobs:

  merge_to_runtime:
    environment: ghcr.io
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.
      id-token: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      # Install the cosign tool except on PR
      # https://github.com/sigstore/cosign-installer
      - name: Install cosign
        if: github.event_name != 'pull_request'
        uses: sigstore/cosign-installer@d6a3abf1bdea83574e28d40543793018b6035605
        with:
          cosign-release: 'v1.7.1'

      # Workaround: https://github.com/docker/build-push-action/issues/461
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@79abd3f86f79a9d68a23c75a09a9a85889262adf
        with:
          driver-opts: network=host

      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GHCRIO_TOKEN }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: runtime image metadata
        id: runtime-meta
        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.FFMPEG_VERSION }}-${{ env.RUNTIME_IMAGE }}


      - name: Pull base image
        run: docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.BASE_IMAGE }}

      - name: Inspect base image
        id: base-image
        run: >-
          echo "::set-output name=digest::$(
            docker image inspect ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.BASE_IMAGE }} | jq -r '.[] | .RepoDigests[]'
          )"

      - name: Pull build image
        run: docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.FFMPEG_VERSION }}-${{ env.BUILD_IMAGE }}

      - name: Inspect build image
        id: build-image
        run: >-
          echo "::set-output name=digest::$(
            docker image inspect ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.FFMPEG_VERSION }}-${{ env.BUILD_IMAGE }} | jq -r '.[] | .RepoDigests[]'
          )"

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: "ffmpeg-debian:<ffmpeg-version>-runtime image building stage"
        id: runtime-image
        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
        with:
          context: ./runtime
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.FFMPEG_VERSION }}-${{ env.RUNTIME_IMAGE }}
          build-args: |
            BASE_IMAGE_DIGEST_TAG=${{ steps.base-image.outputs.digest }}
            BUILD_IMAGE_DIGEST_TAG=${{ steps.build-image.outputs.digest }}

      # Sign the resulting Docker image digest except on PRs.
      # This will only write to the public Rekor transparency log when the Docker
      # repository is public to avoid leaking data.  If you would like to publish
      # transparency data even for private images, pass --force to cosign below.
      # https://github.com/sigstore/cosign
      - name: Sign the published runtime image
        if: ${{ github.event_name != 'pull_request' }}
        env:
          COSIGN_EXPERIMENTAL: "true"
        run: cosign sign ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.FFMPEG_VERSION }}-${{ env.RUNTIME_IMAGE }}@${{ steps.runtime-image.outputs.digest }}