build.yml

name: Build and Release Image

on:
  release:
    types:
      - created

env:
  IMAGE_NAME: valhalla

jobs:
  push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Build image
        run: docker build . --tag image
      - name: Log into registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin
      - name: Push image
        run: |
          IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/$IMAGE_NAME
          # Strip git ref prefix from version
          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
          echo IMAGE_ID=$IMAGE_ID
          echo VERSION=$VERSION
          docker tag image $IMAGE_ID:$VERSION
          # Use Docker `latest` tag convention
          [ "$VERSION" == "master" ] && docker tag image $IMAGE_ID:latest
          docker push $IMAGE_ID:$VERSION