nixos-config/.github/workflows/build-devcontainers.yml

name: "Build devcontainers"
on:
  push:
    branches:
      - master
      - develop
jobs:
  build-devcontainers:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: DeterminateSystems/nix-installer-action@v16
      - uses: DeterminateSystems/magic-nix-cache-action@v8
        with:
          extra-conf: |
            keep-going = true            
      - name: Build
        run: |
          nix build -f ./devcontainers --impure --print-out-paths --no-link > build_paths          
        env:
          NIXPKGS_ALLOW_UNFREE: "1"
      - name: Deploy devcontainers to GitHub registry
        run: |
          for image_archive in $(< build_paths); do
            skopeo --insecure-policy copy \
                --dest-creds="${{ github.repository_owner }}:${{ secrets.GITHUB_TOKEN }}" \
                "docker-archive:${image_archive}" "docker://${{ github.repository }}"
          done