0m.ax
42b2ce4d1d
Self-hostable OTA update system for NixOS fleets: a control server, device agent, publisher CLI, and NixOS modules that ship prebuilt system closures from a binary cache to devices that don't have the flake. - crates/common: signed manifest types (ed25519), store-path validator - crates/server: axum + sqlite + HTMX dashboard, channel/device API - crates/agent: poll, verify signature + revision, nix copy, switch, health check, magic-rollback on failure - crates/publisher: keygen + sign + publish CLI for operators/CI - nix/modules: NixOS modules for server and agent - nix/tests/ota.nix: end-to-end VM test exercising publish A -> B -> broken C -> rollback to B (passes) The control server never holds the signing key; manifests are signed offline and verified against a pinned public key on each device.
46 lines
1.7 KiB
YAML
46 lines
1.7 KiB
YAML
name: publish
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on:
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push:
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branches: [main]
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workflow_dispatch:
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jobs:
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publish:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: cachix/install-nix-action@v27
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with:
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extra_nix_config: |
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experimental-features = nix-command flakes
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- name: Configure binary cache push
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# Replace with your cache of choice (attic, cachix, S3+nix-serve, ...).
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run: echo "configure cache push here"
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- name: Build system closure
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id: build
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run: |
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out=$(nix build --no-link --print-out-paths \
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".#nixosConfigurations.${HOST}.config.system.build.toplevel")
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echo "store_path=$out" >> "$GITHUB_OUTPUT"
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env:
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HOST: my-device
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- name: Push to cache
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run: nix copy --to "${CACHE_URL}?secret-key=$(pwd)/cache.key" "${{ steps.build.outputs.store_path }}"
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env:
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CACHE_URL: ${{ secrets.NIX_OTA_CACHE_URL }}
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- name: Publish manifest
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run: |
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nix run git+https://linus.dyrehytten.dk/max/nix-ota#nix-ota -- publish \
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--server "$NIX_OTA_SERVER" \
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--token "$NIX_OTA_PUBLISH_TOKEN" \
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--key "$NIX_OTA_SIGNING_KEY_FILE" \
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--channel prod \
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--store-path "${{ steps.build.outputs.store_path }}" \
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--substituter "$NIX_OTA_CACHE_URL"
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env:
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NIX_OTA_SERVER: ${{ secrets.NIX_OTA_SERVER }}
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NIX_OTA_PUBLISH_TOKEN: ${{ secrets.NIX_OTA_PUBLISH_TOKEN }}
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NIX_OTA_CACHE_URL: ${{ secrets.NIX_OTA_CACHE_URL }}
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NIX_OTA_SIGNING_KEY_FILE: ${{ runner.temp }}/sign.key
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# Note: write the signing key from a secret to NIX_OTA_SIGNING_KEY_FILE
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# in a previous step (omitted; depends on your secret store).
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