kore

kore / nixos / features / kore.nix43 lines · 1168B · raw
1{ config, lib, kore, ... }:
2
3let
4  hostOptions = with lib; {
5    system = mkOption {
6      type = types.str;
7    };
8    ipv4 = mkOption {
9      type = types.nullOr types.str;
10      default = null;
11    };
12    roles = mkOption {
13      type = types.listOf types.str;
14      default = [];
15    };
16  };
17in {
18  options.kore = with lib; {
19    hosts = mkOption {
20      type = types.attrsOf (types.submodule [{ options = hostOptions; }]);
21      default = {};
22    };
23    currentHost = mkOption {
24      type = types.submodule [{ options = hostOptions; }];
25    };
26  };
27  config = {
28    warnings = lib.optional (!(kore.hosts ? ${config.networking.hostName}))
29      "no configuration for ${config.networking.hostName} found";
30
31    kore = {
32      hosts = kore.hosts;
33      currentHost = kore.hosts.${config.networking.hostName};
34    };
35
36    # /etc/hosts so machines resolve each other by name; placeholder
37    # 0.0.0.0 addresses are skipped.
38    networking.hosts = lib.mkMerge (lib.mapAttrsToList (name: host:
39      lib.optionalAttrs (host.ipv4 != null && host.ipv4 != "0.0.0.0") {
40        "${host.ipv4}" = [ "${name}.${config.networking.domain}" name ];
41      }) kore.hosts);
42  };
43}