nixpkgs/nixos/modules/services/development/gemstash.nix
2023-03-07 15:56:56 +11:00

104 lines
3.4 KiB
Nix

{ lib, pkgs, config, ... }:
with lib;
let
settingsFormat = pkgs.formats.yaml { };
# gemstash uses a yaml config where the keys are ruby symbols,
# which means they start with ':'. This would be annoying to use
# on the nix side, so we rewrite plain names instead.
prefixColon = s: listToAttrs (map
(attrName: {
name = ":${attrName}";
value =
if isAttrs s.${attrName}
then prefixColon s."${attrName}"
else s."${attrName}";
})
(attrNames s));
# parse the port number out of the tcp://ip:port bind setting string
parseBindPort = bind: strings.toInt (last (strings.splitString ":" bind));
cfg = config.services.gemstash;
in
{
options.services.gemstash = {
enable = mkEnableOption (lib.mdDoc "gemstash service");
openFirewall = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Whether to open the firewall for the port in {option}`services.gemstash.bind`.
'';
};
settings = mkOption {
default = {};
description = lib.mdDoc ''
Configuration for Gemstash. The details can be found at in
[gemstash documentation](https://github.com/rubygems/gemstash/blob/master/man/gemstash-configuration.5.md).
Each key set here is automatically prefixed with ":" to match the gemstash expectations.
'';
type = types.submodule {
freeformType = settingsFormat.type;
options = {
base_path = mkOption {
type = types.path;
default = "/var/lib/gemstash";
description = lib.mdDoc "Path to store the gem files and the sqlite database. If left unchanged, the directory will be created.";
};
bind = mkOption {
type = types.str;
default = "tcp://0.0.0.0:9292";
description = lib.mdDoc "Host and port combination for the server to listen on.";
};
db_adapter = mkOption {
type = types.nullOr (types.enum [ "sqlite3" "postgres" "mysql" "mysql2" ]);
default = null;
description = lib.mdDoc "Which database type to use. For choices other than sqlite3, the dbUrl has to be specified as well.";
};
db_url = mkOption {
type = types.nullOr types.str;
default = null;
description = lib.mdDoc "The database to connect to when using postgres, mysql, or mysql2.";
};
};
};
};
};
config =
mkIf cfg.enable {
users = {
users.gemstash = {
group = "gemstash";
isSystemUser = true;
};
groups.gemstash = { };
};
networking.firewall.allowedTCPPorts = mkIf cfg.openFirewall [ (parseBindPort cfg.settings.bind) ];
systemd.services.gemstash = {
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
serviceConfig = mkMerge [
{
ExecStart = "${pkgs.gemstash}/bin/gemstash start --no-daemonize --config-file ${settingsFormat.generate "gemstash.yaml" (prefixColon cfg.settings)}";
NoNewPrivileges = true;
User = "gemstash";
Group = "gemstash";
PrivateTmp = true;
RestrictSUIDSGID = true;
LockPersonality = true;
}
(mkIf (cfg.settings.base_path == "/var/lib/gemstash") {
StateDirectory = "gemstash";
})
];
};
};
}