Erich Blume
2ac353b7bf
buildLayeredImage doesn't create /tmp by default. The container runs as user 65534 (nobody) which can't mkdir /tmp at runtime. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
77 lines
2.7 KiB
Nix
77 lines
2.7 KiB
Nix
# Nix-built Authentik identity provider (from source)
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#
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# Assembles four component derivations into a container image:
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# 1. webui — Lit frontend (esbuild + rollup)
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# 2. authentik-django — Python backend + lifecycle scripts
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# 3. authentik-server — Go HTTP server binary
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# 4. ak wrapper — sets PATH/VIRTUAL_ENV, delegates to lifecycle/ak
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#
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# Built with dockerTools.buildLayeredImage for efficient layer caching.
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{ pkgs ? import <nixpkgs> { } }:
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let
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sources = import ./sources.nix { inherit pkgs; };
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# Duplicated from sources.nix so build-container-nix.yaml can grep it
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version = "2026.2.0";
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webui = import ./webui.nix { inherit pkgs sources; };
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authentik-django = import ./authentik-django.nix { inherit pkgs sources webui; };
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authentik-server = import ./authentik-server.nix { inherit pkgs sources authentik-django webui; };
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# Wrapper that provides bin/ak with the correct runtime environment.
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# lifecycle/ak dispatches: "server" → Go binary, "worker"/"migrate"/etc → Python.
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ak = pkgs.writeShellScriptBin "ak" ''
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export PYTHONDONTWRITEBYTECODE=1
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export PATH="${authentik-server}/bin:${authentik-django}/bin:$PATH"
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export VIRTUAL_ENV="${authentik-django}"
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cd "${authentik-django}"
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exec "${authentik-django}/lifecycle/ak" "$@"
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'';
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# Container entrypoint: symlink built-in blueprints then run ak.
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# buildLayeredImage's extraCommands can't access store paths from contents
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# (they're in separate layers), so we create the symlinks at container start.
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entrypoint = pkgs.writeShellScript "authentik-entrypoint" ''
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for item in ${authentik-django}/blueprints/*/; do
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name=$(basename "$item")
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[ ! -e "/blueprints/$name" ] && ln -s "$item" "/blueprints/$name" 2>/dev/null || true
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done
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exec ${ak}/bin/ak "$@"
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'';
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in
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pkgs.dockerTools.buildLayeredImage {
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name = "blumeops/authentik";
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tag = "latest";
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contents = [
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ak
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authentik-django
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authentik-server
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pkgs.bashInteractive
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pkgs.coreutils
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pkgs.cacert
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pkgs.tzdata
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];
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# Create /blueprints as world-writable so user 65534 can create symlinks at runtime.
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# authentik-django hardcodes blueprints_dir to $out/blueprints; the AUTHENTIK_BLUEPRINTS_DIR
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# env var overrides it to /blueprints, where custom blueprints are mounted by k8s ConfigMap.
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extraCommands = ''
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mkdir -p blueprints tmp
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chmod 777 blueprints tmp
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'';
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config = {
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Entrypoint = [ "${entrypoint}" ];
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Env = [
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"SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt"
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"TZDIR=${pkgs.tzdata}/share/zoneinfo"
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"AUTHENTIK_BLUEPRINTS_DIR=/blueprints"
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];
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ExposedPorts = {
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"9000/tcp" = { };
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"9443/tcp" = { };
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};
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User = "65534";
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};
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}
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