docker.yml

name: Docker

on:
  push:
    # Publish `adap-cw*` tags as releases.
    tags:
        - adap-cw*

env:
  IMAGE_NAME: wahlzeit

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Build image
        run: docker build . --file Dockerfile --tag $IMAGE_NAME

      - name: Log into GitHub Container Registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin

      - name: Push image to GitHub Container Registry
        run: |
          IMAGE_ID=docker.pkg.github.com/$GITHUB_REPOSITORY/$IMAGE_NAME

          # Change all uppercase to lowercase
          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')

          # Strip git ref prefix from version
          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')

          echo IMAGE_ID=$IMAGE_ID
          echo VERSION=$VERSION

          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
          docker tag $IMAGE_NAME $IMAGE_ID:latest
          docker push $IMAGE_ID:$VERSION