build-push.yml

name: Build and Publish Julia Docker Images

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  build-and-publish:
    runs-on: ubuntu-24.04
    strategy:
      matrix:
        image:
          - name: "julia-jeg-kernelspec"
            dockerfile: "kernel-julia/gateway/kernelspec-image/Dockerfile"
            context: "kernel-julia/gateway/kernelspec-image"
            tag: "beta"
            pre_build_command: ""
          - name: "julia-jeg-kernel"
            dockerfile: "kernel-julia/container/Dockerfile"
            context: "kernel-julia/container"
            tag: "beta"
            pre_build_command: "cd kernel-julia/container/; \
              tar --gzip --create --dereference --file=jupyter_enterprise_gateway_kernel_image_files_docker-julia.tar.gz kernel-launchers/ bootstrap-kernel.sh eventloop.jl init.jl"

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Log in to GitHub Container Registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io --username ${{ github.actor }} --password-stdin

      - name: Execute Pre-Build Command
        run: ${{ matrix.image.pre_build_command }}

      - name: Build and Push Docker Image
        run: |
          docker build \
            --file ${{ matrix.image.dockerfile }} \
            --tag ghcr.io/${{ github.repository }}/${{ matrix.image.name }}:${{ matrix.image.tag }} \
            ${{ matrix.image.context }}
          docker push ghcr.io/${{ github.repository }}/${{ matrix.image.name }}:${{ matrix.image.tag }}