clan-core/lib/build-clan/default.nix
Jörg Thalheim fcd1d18e15
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restore possibility to update all machines without having to specify them
2023-10-04 08:35:59 +02:00

60 lines
2.0 KiB
Nix

{ nixpkgs, self, lib }:
{ directory # The directory containing the machines subdirectory
, specialArgs ? { } # Extra arguments to pass to nixosSystem i.e. useful to make self available
, machines ? { } # allows to include machine-specific modules i.e. machines.${name} = { ... }
}:
let
machinesDirs = lib.optionalAttrs (builtins.pathExists "${directory}/machines") (builtins.readDir (directory + /machines));
machineSettings = machineName:
lib.optionalAttrs (builtins.pathExists "${directory}/machines/${machineName}/settings.json")
(builtins.fromJSON
(builtins.readFile (directory + /machines/${machineName}/settings.json)));
# TODO: remove default system once we have a hardware-config mechanism
nixosConfiguration = { system ? "x86_64-linux", name }: nixpkgs.lib.nixosSystem {
modules = [
self.nixosModules.clanCore
(machineSettings name)
(machines.${name} or { })
{
clanCore.machineName = name;
clanCore.clanDir = directory;
nixpkgs.hostPlatform = lib.mkForce system;
}
];
inherit specialArgs;
};
allMachines = machinesDirs // machines;
supportedSystems = [
"x86_64-linux"
"aarch64-linux"
"riscv64-linux"
"x86_64-darwin"
"aarch64-darwin"
];
nixosConfigurations = lib.mapAttrs (name: _: nixosConfiguration { inherit name; }) allMachines;
# This instantiates nixos for each system that we support:
# configPerSystem = <system>.<machine>.nixosConfiguration
# We need this to build nixos secret generators for each system
configsPerSystem = builtins.listToAttrs
(builtins.map
(system: lib.nameValuePair system
(lib.mapAttrs (name: _: nixosConfiguration { inherit name system; }) allMachines))
supportedSystems);
in
{
inherit nixosConfigurations;
clanInternals = {
machines = configsPerSystem;
all-machines-json = lib.mapAttrs
(system: configs: nixpkgs.legacyPackages.${system}.writers.writeJSON "machines.json" (lib.mapAttrs (_: m: m.config.system.clan.deployment.data) configs))
configsPerSystem;
};
}