publish-ghcr.yml

#
name: Create and publish a Docker image

on:
  workflow_dispatch:

  release:
    types: [published]

# Defines environment variables for the workflow. These are used for the Container registry domain, and a version for the Docker image that this workflow builds.
env:
  REGISTRY: ghcr.io
  VERSION: ${{ github.ref_name }}

jobs:
  build-and-push-image-gpu:
    runs-on: ubuntu-latest
    # Sets the permissions granted to the `GH_PAT` for the actions in this job.
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      # Uses the `docker/login-action` action to log in to the Container registry registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here.
      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GH_PAT }}
      - name: lowercase github.repository
        run: |
          echo "IMAGE_NAME=`echo ${{github.repository}} | tr '[:upper:]' '[:lower:]'`" >>${GITHUB_ENV}
      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile-gpu
          push: true
          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest, ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.VERSION }}