publish_image.yaml

name: Publish image on commit or published release

on:
  push:
    branches:
      - master
      - main
  release:
    types:
      - published

jobs:
  push-image:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ github.token }}

      - name: Set tag name for releases
        if: ${{ github.event_name == 'release' }}
        run: echo "TAG=ghcr.io/${GITHUB_REPOSITORY,,}:${GITHUB_REF##*/}" >>${GITHUB_ENV}

      - name: Set tag name for commits
        if: ${{ github.event_name == 'push' }}
        run: echo "TAG=ghcr.io/${GITHUB_REPOSITORY,,}:${{ github.sha }}" >>${GITHUB_ENV}

      - name: Build image
        uses: docker/build-push-action@v2
        with:
          load: true
          push: false
          tags: ${{ env.TAG }}

      - name: Test image
        run: |
          docker run ${{ env.TAG }} /bin/sh -c "\
          python -m pip install --upgrade pip && \
          pip install -r requirements.txt && \
          pip install -r requirements-test.txt && \
          pytest"

      - name: Push image to registry
        uses: docker/build-push-action@v2
        with:
          push: true
          tags: ${{ env.TAG }}