docker-publish.yml

name: Docker Hub Release

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

on:
  schedule:
    - cron: '15 12 * * *'
  push:
    branches: [ "master" ]
    # Publish same ver tags as releases.
    tags: [ 'v*.*' ]
  pull_request:
    branches: [ "master" ]

env:
  REGISTRY: docker.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:

    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@v3.3.0
        with:
          cosign-release: 'v2.2.2'

      # Workaround: https://github.com/docker/build-push-action/issues/461
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@4b4e9c3e2d4531116a6f8ba8e71fc6e2cb6e6c8c

      - name: Setup QEMU
        uses: docker/setup-qemu-action@v2

      # 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@f4ef78c080cd8ba55a85445d5b36e214a81df20a
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      # Login to ghcr.io
      - name: Log into registry ghcr.io
        if: github.event_name != 'pull_request'
        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@507c2f2dc502c992ad446e3d7a5dfbe311567a96
        with:
          images: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
            ghcr.io/${{ github.repository }}

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
        with:
          context: .
          platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/s390x,linux/ppc64le
          push: ${{ github.event_name != 'pull_request' }}
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:10.3
            ghcr.io/${{ env.IMAGE_NAME }}:latest
            ghcr.io/${{ env.IMAGE_NAME }}:10.3
          labels: ${{ steps.meta.outputs.labels }}

      - name: Write signing key to disk
        run: 'echo "$KEY" > cosign.key'
        shell: bash
        env:
          KEY: ${{ secrets.COSIGN_PRIVATE_KEY }}

      # Sign the resulting Docker image digest except on PRs.
      # https://github.com/sigstore/cosign
      - name: Sign the published Docker image
        if: ${{ github.event_name != 'pull_request' }}
        env:
          COSIGN_PASSWORD: ${{ secrets.COSIGN_PASSWORD }}
        # This step uses the identity token to provision an ephemeral certificate
        # against the sigstore community Fulcio instance.
        run: |
          cosign sign --key cosign.key ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest@${{ steps.build-and-push.outputs.digest }}
          cosign sign --key cosign.key ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:10.3@${{ steps.build-and-push.outputs.digest }}
          cosign sign --key cosign.key ghcr.io/${{ env.IMAGE_NAME }}:latest@${{ steps.build-and-push.outputs.digest }}
          cosign sign --key cosign.key ghcr.io/${{ env.IMAGE_NAME }}:10.3@${{ steps.build-and-push.outputs.digest }}