nixos-config/.github/workflows/update.yml

name: update
on:
  workflow_dispatch: # allows manual triggering
  schedule:
    - cron: "49 7 * * *"
jobs:
  flake-lock:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
      - name: Install Nix
        uses: cachix/install-nix-action@v18
        with:
          nix_path: nixpkgs=channel:nixos-unstable
          extra_nix_config: |
            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
            trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nixcache:8KKuGz95Pk4UJ5W/Ni+pN+v+LDTkMMFV4yrGmAYgkDg= hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs=
            experimental-features = nix-command flakes ca-derivations
            post-build-hook = ${{ github.workspace }}/scripts/post-build-hook
            substituters = https://cache.chir.rs/ https://cache.nixos.org/
      - name: Set up secrets
        run: |
          echo "$NIX_CACHE_KEY" > ~/cache.key
          sudo mkdir /root/.aws
          echo "$AWS_CREDENTIALS" | sudo tee /root/.aws/credentials > /dev/null
        env:
          NIX_CACHE_KEY: ${{secrets.NIX_CACHE_KEY}}
          AWS_CREDENTIALS: ${{secrets.AWS_CREDENTIALS}}
      - name: Update flake.lock
        uses: DeterminateSystems/update-flake-lock@v14
        with:
          token: ${{ secrets.GH_TOKEN }}