build_docker.yml

name: publish 🐳 Docker image

on:
  push:
    paths-ignore:
      - '.github/**'
    branches:
      - 'main'
    tags:
      - '*'

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

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Log in to the Container registry
        uses: docker/login-action@465a07811f14bebb1938fbed4728c6a1ff8901fc
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Get tags
        shell: python
        run: |
          import re
          import os
          from packaging.version import parse

          image   = "ghcr.io/${{ github.repository }}"
          tags    = set()
          version = "${{ github.ref_name }}"

          if version.startswith('v'):
            version = "${{ github.ref_name }}".replace("v", "")
            tags.add(f"{image}:latest")

          if version == 'main':
            version = "development"

          tags.add(f"{image}:{version}")
          tags = ",".join(sorted(list(tags)))

          with open(os.environ['GITHUB_OUTPUT'], 'a') as fh:
            print(f'tags={tags}', file=fh)
        id: tags

      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          platforms: linux/amd64
          push: true
          tags: ${{ steps.tags.outputs.tags }}