publish_container.yml

name: Publish Docker image

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      sha:
        description: "Commit SHA to create release from"
        required: true
      tag:
        description: "Tag of the release"
        required: true
  schedule:
    - cron: "0 23 * * 1"
jobs:
  set-env:
    runs-on: ubuntu-latest
    outputs:
      sha: ${{ env.SHA }}
      tag: ${{ env.TAG }}
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2
      - name: Set env on push
        if: github.event_name == 'push'
        run: |
          echo "SHA=$(git rev-parse HEAD)" >> $GITHUB_ENV
          echo "TAG=$(git tag --points-at HEAD)" >> $GITHUB_ENV
      - name: Set env on trigger
        if: github.event_name == 'workflow_dispatch'
        run: |
          echo "SHA=${{ github.event.inputs.sha }}" >> $GITHUB_ENV
          echo "TAG=${{ github.event.inputs.tag }}" >> $GITHUB_ENV
      - name: Set env on cron
        if: github.event_name == 'schedule'
        run: |
          echo "SHA=$(git rev-parse HEAD)" >> $GITHUB_ENV
          echo "TAG=nightly" >> $GITHUB_ENV
      - name: Check values
        run: |
          echo "SHA: ${{ env.SHA }}"
          echo "Tag: ${{ env.TAG }}"
  build:
    runs-on: ubuntu-latest
    needs: [ set-env ]
    env:
      container: ghcr.io/it4innovations/hyperqueue
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ needs.set-env.outputs.sha }}

      - uses: docker/setup-buildx-action@v3
      - name: Build container
        uses: docker/build-push-action@v6
        with:
          context: .
          # Export the image to Docker to make it available in the next step
          load: true
          tags: ${{ env.container }}:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max

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

      - name: Tag and push image
        run: |
          tag=${{ needs.set-env.outputs.tag || 'nightly' }}
          echo "Tagging and releasing ${{ env.container }}:${tag}"
          docker tag ${{ env.container }}:latest ${{ env.container }}:${tag}
          docker push ${{ env.container }}:${tag}