name: Publish Docker image

permissions: read-all

on:
  # For initial testing and we can remove it later.
  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag for the container image'
        required: true
        type: string

jobs:
  docker-publish:
    name: Publish Docker image
    runs-on: ubuntu-24.04
    permissions:
      contents: read
      packages: write
    env:
      REGISTRY: ghcr.io
      IMAGE_NAME: ${{ github.repository }}
    steps:
      - name: Check out repository
        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
      # Based on https://docs.github.com/en/actions/publishing-packages/publishing-docker-images.
      - name: Log in to the Container registry
        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4.2.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@80c7e94dd9b9319bd5eb7a0e0fe9291e23a2a2e9 # v6.1.0
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            latest
            type=raw,value=${{ inputs.tag }}
      - name: Build and push the Docker image
        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
        with:
          context: ./tools/docker
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}