592 lines
22 KiB
Nix
592 lines
22 KiB
Nix
{
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description = "Alexion's NixOS configuration — one flake for every host";
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inputs = {
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# Base channel.
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nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
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# Fresher packages, reachable per-package as `unstable.<name>`.
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nixpkgs-unstable.url = "github:nixos/nixpkgs/nixpkgs-unstable";
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# Latest stable release, reachable per-package as `stable.<name>`.
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nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-26.05";
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home-manager = {
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url = "github:nix-community/home-manager";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Signed AMO extensions, pinned by version and hash.
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firefox-addons = {
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url = "gitlab:rycee/nur-expressions?dir=pkgs/firefox-addons";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Follows our nixpkgs so its plugins build against the same package set.
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nixvim = {
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url = "github:nix-community/nixvim";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Declarative disk partitioning.
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# Each host declares its own layout.
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disko = {
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url = "github:nix-community/disko";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Upstream per-machine hardware profiles.
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# Each host imports its own.
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nixos-hardware = {
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url = "github:NixOS/nixos-hardware";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Decrypts committed secrets at activation, from an age identity on the host.
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sops-nix = {
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url = "github:Mic92/sops-nix";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Themes the graphical layer from one base16 scheme.
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# Follows our nixpkgs so it themes the same package set the host builds.
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stylix = {
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url = "github:danth/stylix";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Agent-ergonomic CLI for Gitea, with a home-manager module for the agent context.
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gitea-axi = {
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url = "git+https://git.alexion.dev/alexion/gitea-axi";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Personal agent skills, packaged as per-skill derivations with a home-manager module.
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skills = {
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url = "git+https://git.alexion.dev/alexion/skills";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# CachyOS kernel and binary cache.
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# Pins its own nixpkgs so its cache stays usable and the kernel is fetched from it.
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chaotic.url = "github:chaotic-cx/nyx/nyxpkgs-unstable";
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};
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outputs =
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{ self, nixpkgs, ... }@inputs:
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let
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inherit (nixpkgs) lib;
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my = import ./lib { inherit lib inputs self; };
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in
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{
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# Helper functions for discovering and building hosts.
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lib = my;
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# Every host under hosts/ is discovered and built.
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nixosConfigurations = my.mkHosts (self + "/hosts");
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# A project shell for agent-local resources that should travel with this
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# checkout rather than the operator's global profile.
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devShells.x86_64-linux.default =
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let
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pkgs = nixpkgs.legacyPackages.x86_64-linux;
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in
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pkgs.mkShell {
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packages = [ inputs.gitea-axi.packages.x86_64-linux.gitea-axi ];
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shellHook = inputs.skills.lib.mkSkillsShellHook [
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inputs.gitea-axi.packages.x86_64-linux.gitea-axi-skill
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];
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};
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# `nix flake check` builds host toplevels and project-level checks.
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checks.x86_64-linux =
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let
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pkgs = nixpkgs.legacyPackages.x86_64-linux;
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serviceIdentities = import ./lib/service-identities.nix { inherit lib; };
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serviceIdentityTestsPass = lib.all (result: result) (lib.attrValues serviceIdentities.tests);
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in
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(lib.mapAttrs (
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name: host:
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if host.config.warnings == [] then
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host.config.system.build.toplevel
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else
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throw "Host ${name} has evaluation warnings:\n${lib.concatStringsSep "\n" host.config.warnings}"
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) self.nixosConfigurations)
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// {
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service-identities = pkgs.runCommand "service-identities-check" { } ''
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${lib.optionalString (!serviceIdentityTestsPass) "exit 1"}
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touch $out
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'';
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copyparty-reverse-proxy-trust-config =
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let
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pikachuConfig = self.nixosConfigurations.pikachu.config;
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serviceConfig = pikachuConfig.containers.copyparty.config.systemd.services.copyparty.serviceConfig;
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configScript = builtins.readFile serviceConfig.ExecStartPre;
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plainConfig =
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(lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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./modules/services/copyparty.nix
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{
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modules.services.copyparty = {
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enable = true;
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passwordFile = "/run/password";
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volumes."/" = {
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path = "/srv/files";
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access.A = [ "alexion" ];
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};
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};
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}
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];
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}).config;
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plainScript = builtins.readFile plainConfig.systemd.services.copyparty.serviceConfig.ExecStartPre;
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in
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pkgs.runCommand "copyparty-reverse-proxy-trust-config-check" { } ''
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${
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lib.optionalString (
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!(
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lib.hasInfix " rproxy: 1" configScript
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&& lib.hasInfix " xff-hdr: x-forwarded-for" configScript
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&& lib.hasInfix " xff-src: 10.23.20.109/32" configScript
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&& !(lib.hasInfix "rproxy" plainScript)
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&& !(lib.hasInfix "xff-hdr" plainScript)
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&& !(lib.hasInfix "xff-src" plainScript)
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)
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) "exit 1"
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}
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touch $out
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'';
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copyparty-reverse-proxy-trust-requires-source =
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let
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testConfig =
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(lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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./modules/services/copyparty.nix
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{
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modules.services.copyparty = {
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enable = true;
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passwordFile = "/run/password";
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reverseProxy.enable = true;
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volumes."/" = {
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path = "/srv/files";
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access.A = [ "alexion" ];
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};
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};
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}
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];
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}).config;
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hasFailedTrustedSourcesAssertion = lib.any (
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assertion:
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assertion.assertion == false
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&& assertion.message == "modules.services.copyparty.reverseProxy.trustedSources must name at least one trusted proxy source when reverse-proxy support is enabled."
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) testConfig.assertions;
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in
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pkgs.runCommand "copyparty-reverse-proxy-trust-requires-source-check" { } ''
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${lib.optionalString (!hasFailedTrustedSourcesAssertion) "exit 1"}
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touch $out
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'';
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reverse-proxy-basic-route =
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let
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routeHost = lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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self.lib.registry.module
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{
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registry.address.test.budget = "10.23.20.42";
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registry.route.test.budget = {
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domain = "budget.alexion.dev";
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port = 5006;
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};
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system.stateVersion = "26.11";
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}
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];
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};
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registry = self.lib.registry.collect { hosts.test = routeHost; };
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testConfig =
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(lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs = {
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my = self.lib;
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inherit registry;
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};
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modules = [
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./modules/reverse-proxy.nix
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{
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modules.reverse-proxy.enable = true;
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}
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];
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}).config;
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vhost = testConfig.services.nginx.virtualHosts."budget.alexion.dev";
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in
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pkgs.runCommand "reverse-proxy-basic-route-check" { } ''
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${
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lib.optionalString (
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!(vhost.forceSSL && vhost.enableACME && vhost.locations."/".proxyPass == "http://10.23.20.42:5006")
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) "exit 1"
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}
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touch $out
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'';
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reverse-proxy-actualbudget-guest-route =
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let
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testConfig = self.nixosConfigurations.pikachu.config;
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route = testConfig.registry.route.pikachu.actualbudget;
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vhost = testConfig.containers.reverse-proxy.config.services.nginx.virtualHosts."budget.alexion.dev";
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in
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pkgs.runCommand "reverse-proxy-actualbudget-guest-route-check" { } ''
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${
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lib.optionalString (
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!(
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route.domain == "budget.alexion.dev"
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&& route.port == 5006
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&& !(route ? backend)
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&& !(route ? path)
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&& !(route ? scheme)
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&& !(route ? aliases)
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&& !(route ? tls)
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&& !(route ? websockets)
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&& !(route ? enable)
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&& vhost.locations."/".proxyPass == "http://10.23.20.42:5006"
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)
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) "exit 1"
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}
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touch $out
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'';
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generic-registry-fleet-view =
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let
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hosts = {
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alpha = lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.registry = registry;
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modules = [
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self.lib.registry.module
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{
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registry.address.alpha.service = "10.0.0.5";
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system.stateVersion = "26.11";
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}
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];
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};
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beta = lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.registry = registry;
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modules = [
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self.lib.registry.module
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(
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{ registry, ... }:
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{
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environment.etc."registry-address-check".text = registry.address.alpha.service;
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system.stateVersion = "26.11";
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}
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)
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];
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};
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};
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registry = self.lib.registry.collect { inherit hosts; };
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betaConfig = hosts.beta.config;
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in
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pkgs.runCommand "generic-registry-fleet-view-check" { } ''
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${
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lib.optionalString (
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!(
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registry.address.alpha.service == "10.0.0.5"
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&& betaConfig.environment.etc."registry-address-check".text == "10.0.0.5"
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&& !(registry.address ? alpha-service)
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)
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) "exit 1"
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}
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touch $out
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'';
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address-registry =
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let
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hostAddressConfig =
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lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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self.lib.registry.module
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{
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registry.address.neogaia.self = "10.23.50.146";
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system.stateVersion = "26.11";
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}
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];
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};
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guestAddressConfig =
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lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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inputs.sops-nix.nixosModules.sops
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self.lib.registry.module
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./modules/network.nix
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(self.lib.guest { name = "copyparty"; })
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{
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networking.hostName = "pikachu";
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modules.network.vlans = [ 20 ];
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guests.copyparty = {
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enable = true;
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vlan = 20;
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address = "10.23.20.126";
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};
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system.stateVersion = "26.11";
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}
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];
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};
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registry = self.lib.registry.collect {
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hosts = {
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neogaia = hostAddressConfig;
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pikachu = guestAddressConfig;
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};
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};
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fleetEndpoints = self.lib.networkEndpoints.collectFleetEndpoints {
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neogaia = hostAddressConfig;
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pikachu = guestAddressConfig;
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};
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in
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pkgs.runCommand "address-registry-check" { } ''
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${
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lib.optionalString (
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!(
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registry.address.neogaia.self == "10.23.50.146"
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&& registry.address.pikachu.copyparty == "10.23.20.126"
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&& fleetEndpoints.neogaia.address == "10.23.50.146"
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&& fleetEndpoints."pikachu-copyparty".address == "10.23.20.126"
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&& !(fleetEndpoints ? pikachu)
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&& guestAddressConfig.config.containers.copyparty.config.systemd.network.networks."20-eth0".networkConfig.DHCP == "yes"
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)
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) "exit 1"
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}
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touch $out
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'';
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reverse-proxy-fleet-routes =
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let
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routeHost =
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lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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self.lib.registry.module
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{
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registry.address.routeHost.app = "10.23.20.126";
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registry.route.routeHost.app = {
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domain = "worker.alexion.dev";
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port = 3923;
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};
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system.stateVersion = "26.11";
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}
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];
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};
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registry = self.lib.registry.collect {
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hosts = {
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inherit routeHost;
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pikachu = self.nixosConfigurations.pikachu;
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};
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};
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testConfig =
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(self.nixosConfigurations.pikachu.extendModules {
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specialArgs.registry = registry;
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}).config;
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vhosts = testConfig.containers.reverse-proxy.config.services.nginx.virtualHosts;
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in
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pkgs.runCommand "reverse-proxy-fleet-routes-check" { } ''
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${
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lib.optionalString (
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!(
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registry.route ? routeHost
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&& registry.route.routeHost ? app
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&& registry.route.pikachu ? actualbudget
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&& vhosts."worker.alexion.dev".locations."/".proxyPass == "http://10.23.20.126:3923"
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&& vhosts."budget.alexion.dev".locations."/".proxyPass == "http://10.23.20.42:5006"
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&& vhosts."files.alexion.dev".locations."/".proxyPass == "http://10.23.20.126:3923"
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)
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) "exit 1"
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}
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touch $out
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'';
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reverse-proxy-address-backends =
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let
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workerHost =
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lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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self.lib.registry.module
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{
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registry.address.worker.self = "10.23.50.146";
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registry.route.worker.self = {
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domain = "worker.alexion.dev";
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port = 8080;
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};
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system.stateVersion = "26.11";
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}
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];
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};
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guestRouteHost =
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lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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inputs.sops-nix.nixosModules.sops
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self.lib.registry.module
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./modules/network.nix
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(self.lib.guest { name = "files"; })
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{
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networking.hostName = "pikachu";
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modules.network.vlans = [ 20 ];
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guests.files = {
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enable = true;
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vlan = 20;
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address = "10.23.20.126";
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reverseProxy = {
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enable = true;
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host = "files.alexion.dev";
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port = 3923;
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};
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};
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system.stateVersion = "26.11";
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}
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];
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};
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registry = self.lib.registry.collect {
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hosts = {
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worker = workerHost;
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pikachu = guestRouteHost;
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};
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};
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testConfig =
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(lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs = {
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my = self.lib;
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inherit registry;
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};
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modules = [
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./modules/reverse-proxy.nix
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{
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modules.reverse-proxy.enable = true;
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}
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];
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}).config;
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vhosts = testConfig.services.nginx.virtualHosts;
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workerCompositeEntry = registry.join "worker" "self";
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in
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pkgs.runCommand "reverse-proxy-address-backends-check" { } ''
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${
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lib.optionalString (
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!(
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workerCompositeEntry.address == "10.23.50.146"
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&& workerCompositeEntry.route.domain == "worker.alexion.dev"
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&& vhosts."worker.alexion.dev".locations."/".proxyPass == "http://10.23.50.146:8080"
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&& registry.route.pikachu.files.port == 3923
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&& vhosts."files.alexion.dev".locations."/".proxyPass == "http://10.23.20.126:3923"
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)
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) "exit 1"
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}
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touch $out
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'';
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reverse-proxy-route-requires-address =
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let
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routeHost = lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs.my = self.lib;
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modules = [
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self.lib.registry.module
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{
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registry.route.raichu.files = {
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domain = "files.alexion.dev";
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port = 3923;
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};
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system.stateVersion = "26.11";
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}
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];
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};
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registry = self.lib.registry.collect { hosts.raichu = routeHost; };
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testConfig = lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs = {
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my = self.lib;
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inherit registry;
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};
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modules = [
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./modules/reverse-proxy.nix
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{
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modules.reverse-proxy.enable = true;
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system.stateVersion = "26.11";
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}
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];
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};
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|
result = builtins.tryEval (builtins.deepSeq testConfig.config.services.nginx.virtualHosts true);
|
|
in
|
|
pkgs.runCommand "reverse-proxy-route-requires-address-check" { } ''
|
|
${lib.optionalString result.success "exit 1"}
|
|
touch $out
|
|
'';
|
|
|
|
reverse-proxy-duplicate-domain-fails =
|
|
let
|
|
pikachu = lib.nixosSystem {
|
|
system = "x86_64-linux";
|
|
specialArgs.my = self.lib;
|
|
modules = [
|
|
self.lib.registry.module
|
|
{
|
|
registry.address.pikachu.copyparty = "10.23.20.126";
|
|
registry.route.pikachu.copyparty = {
|
|
domain = "files.alexion.dev";
|
|
port = 3923;
|
|
};
|
|
system.stateVersion = "26.11";
|
|
}
|
|
];
|
|
};
|
|
raichu = lib.nixosSystem {
|
|
system = "x86_64-linux";
|
|
specialArgs.my = self.lib;
|
|
modules = [
|
|
self.lib.registry.module
|
|
{
|
|
registry.address.raichu.files = "10.23.20.10";
|
|
registry.route.raichu.files = {
|
|
domain = "files.alexion.dev";
|
|
port = 3923;
|
|
};
|
|
system.stateVersion = "26.11";
|
|
}
|
|
];
|
|
};
|
|
registry = self.lib.registry.collect { hosts = { inherit pikachu raichu; }; };
|
|
testConfig = lib.nixosSystem {
|
|
system = "x86_64-linux";
|
|
specialArgs = {
|
|
my = self.lib;
|
|
inherit registry;
|
|
};
|
|
modules = [
|
|
./modules/reverse-proxy.nix
|
|
{
|
|
modules.reverse-proxy.enable = true;
|
|
system.stateVersion = "26.11";
|
|
}
|
|
];
|
|
};
|
|
result = builtins.tryEval (builtins.deepSeq testConfig.config.services.nginx.virtualHosts true);
|
|
in
|
|
pkgs.runCommand "reverse-proxy-duplicate-domain-fails-check" { } ''
|
|
${lib.optionalString result.success "exit 1"}
|
|
touch $out
|
|
'';
|
|
};
|
|
};
|
|
}
|