pyrox.dev
1{ lib, pkgs, config, ... }:
2with lib;
3
4let
5 settingsFormat = pkgs.formats.yaml { };
6
7 # gemstash uses a yaml config where the keys are ruby symbols,
8 # which means they start with ':'. This would be annoying to use
9 # on the nix side, so we rewrite plain names instead.
10 prefixColon = s: listToAttrs (map
11 (attrName: {
12 name = ":${attrName}";
13 value =
14 if isAttrs s.${attrName}
15 then prefixColon s."${attrName}"
16 else s."${attrName}";
17 })
18 (attrNames s));
19
20 # parse the port number out of the tcp://ip:port bind setting string
21 parseBindPort = bind: strings.toInt (last (strings.splitString ":" bind));
22
23 cfg = config.services.gemstash;
24in
25{
26 options.services.gemstash = {
27 enable = mkEnableOption (lib.mdDoc "gemstash service");
28
29 openFirewall = mkOption {
30 type = types.bool;
31 default = false;
32 description = lib.mdDoc ''
33 Whether to open the firewall for the port in {option}`services.gemstash.bind`.
34 '';
35 };
36
37 settings = mkOption {
38 default = {};
39 description = lib.mdDoc ''
40 Configuration for Gemstash. The details can be found at in
41 [gemstash documentation](https://github.com/rubygems/gemstash/blob/master/man/gemstash-configuration.5.md).
42 Each key set here is automatically prefixed with ":" to match the gemstash expectations.
43 '';
44 type = types.submodule {
45 freeformType = settingsFormat.type;
46 options = {
47 base_path = mkOption {
48 type = types.path;
49 default = "/var/lib/gemstash";
50 description = lib.mdDoc "Path to store the gem files and the sqlite database. If left unchanged, the directory will be created.";
51 };
52 bind = mkOption {
53 type = types.str;
54 default = "tcp://0.0.0.0:9292";
55 description = lib.mdDoc "Host and port combination for the server to listen on.";
56 };
57 db_adapter = mkOption {
58 type = types.nullOr (types.enum [ "sqlite3" "postgres" "mysql" "mysql2" ]);
59 default = null;
60 description = lib.mdDoc "Which database type to use. For choices other than sqlite3, the dbUrl has to be specified as well.";
61 };
62 db_url = mkOption {
63 type = types.nullOr types.str;
64 default = null;
65 description = lib.mdDoc "The database to connect to when using postgres, mysql, or mysql2.";
66 };
67 };
68 };
69 };
70 };
71
72 config =
73 mkIf cfg.enable {
74 users = {
75 users.gemstash = {
76 group = "gemstash";
77 isSystemUser = true;
78 };
79 groups.gemstash = { };
80 };
81
82 networking.firewall.allowedTCPPorts = mkIf cfg.openFirewall [ (parseBindPort cfg.settings.bind) ];
83
84 systemd.services.gemstash = {
85 wantedBy = [ "multi-user.target" ];
86 after = [ "network.target" ];
87 serviceConfig = mkMerge [
88 {
89 ExecStart = "${pkgs.gemstash}/bin/gemstash start --no-daemonize --config-file ${settingsFormat.generate "gemstash.yaml" (prefixColon cfg.settings)}";
90 NoNewPrivileges = true;
91 User = "gemstash";
92 Group = "gemstash";
93 PrivateTmp = true;
94 RestrictSUIDSGID = true;
95 LockPersonality = true;
96 }
97 (mkIf (cfg.settings.base_path == "/var/lib/gemstash") {
98 StateDirectory = "gemstash";
99 })
100 ];
101 };
102 };
103}