publish-docker.yml

name: Publish Docker image

on:
  workflow_dispatch:
  push:
    # Publish `master` as Docker `latest` image.
    branches:
    - master
    # Publish `v1.2.3` tags as releases?
    # tags:
    #   - v*
  release:
    types:
    - created

env:
  DOCKER_BUILDKIT: 1
  IMAGE_NAME: fuji

jobs:

  build-and-publish:
    # Build and push image to GitHub Container Registry https://docs.docker.com/docker-hub/builds/
    runs-on: ubuntu-22.04

    # do not run in forks
    if: github.repository == 'pangaea-data-publisher/fuji'

    steps:

    - run: docker --version
    - run: docker buildx version

    - uses: actions/checkout@v4

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

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

    - name: Push image to GitHub Container Registry
      run: |
        IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$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,')

        # Strip "v" prefix from tag name
        [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')

        # Use Docker `latest` tag convention
        [ "$VERSION" == "master" ] && VERSION=latest

        echo IMAGE_ID=$IMAGE_ID
        echo VERSION=$VERSION

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