name: Build Docker Image
on:
  push:
    branches:
      - trunk

jobs:
  arm-docker-build:
    runs-on: debian-latest-arm
    steps:
      - name: Install Nix
        uses: https://github.com/cachix/install-nix-action@v22
      - name: Check out repository
        uses: https://github.com/RouxAntoine/checkout@v3.5.4
        with:
          ref: trunk
      - name: Build image
        run: nix build .#docker
      - name: Push image with Skopeo
        run: nix-shell -p skopeo --command "skopeo copy docker-archive:result docker://icr.gmem.ca/dref:arm"