release_docker_image.yml

name: Publish Docker release image

on:
  push:
    tags:
      - 'v*.*.*'

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

jobs:
  build:
    name: Build Docker image
    runs-on: ubuntu-latest
    permissions:
      packages: write
    steps:
      - uses: actions/checkout@v3
        name: Check out the repository

      - uses: docker/login-action@v2
        name: Log in to the container registry
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - uses: docker/metadata-action@v4
        name: Extract metadata (tags, labels) for Docker
        id: meta
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=semver,pattern={{version}}
            latest

      - uses: docker/build-push-action@v4
        name: Build and push the Docker image
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}