publish-docker.yml

# Publish to Docker Hub
# This publishes the "main" and "next" branch to Docker Hub

name: publish-docker

on:
  # Build images for main and next branch
  push:
    branches:
      - main
      - next
    # Tags can not be for now because they are set from the semantic-release workflow
    # and actions run by the GitHub user can not trigger other actions
    # tags:
    #   - v*
  # Also allow manual triggering
  workflow_dispatch:

env:
  IMAGE_NAME: ${{ github.repository }}

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

jobs:
  build-and-publish:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Job information
        run: echo ${{ github.workflow }}-${{ github.ref }}

      - name: Check out repository
        uses: actions/checkout@v4

      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            # Docker Hub
            ${{ env.IMAGE_NAME }}
            # Github Packages
            # ghcr.io/${{ env.IMAGE_NAME }}
          # Tagged semver releases get a (latest) entry as well
          flavor: |
            latest=auto
            prefix=
            suffix=
          # refs/branches/main -> (main)
          # refs/tags/v1.2.3 -> (1.2.3)
          # refs/tags/v1.2.3 -> (1.2)
          # refs/tags/v1.2.3 -> (1), only if greater zero
          tags: |
            type=ref,event=branch
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.') }}

      - name: Log in to Docker Hub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Log in to Github Packages
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          tags: ${{ steps.meta.outputs.tags }}
          push: ${{ github.event_name != 'pull_request' }}
          labels: ${{ steps.meta.outputs.labels }}