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nixpkgs/nixos/modules/services/databases/monetdb.nix
2018-05-01 16:44:12 +02:00

101 lines
2.5 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.monetdb;
in {
meta.maintainers = with maintainers; [ StillerHarpo primeos ];
###### interface
options = {
services.monetdb = {
enable = mkEnableOption "the MonetDB database server";
package = mkOption {
type = types.package;
default = pkgs.monetdb;
defaultText = "pkgs.monetdb";
description = "MonetDB package to use.";
};
user = mkOption {
type = types.str;
default = "monetdb";
description = "User account under which MonetDB runs.";
};
group = mkOption {
type = types.str;
default = "monetdb";
description = "Group under which MonetDB runs.";
};
dataDir = mkOption {
type = types.path;
default = "/var/lib/monetdb";
description = "Data directory for the dbfarm.";
};
port = mkOption {
type = types.ints.u16;
default = 50000;
description = "Port to listen on.";
};
listenAddress = mkOption {
type = types.str;
default = "127.0.0.1";
example = "0.0.0.0";
description = "Address to listen on.";
};
};
};
###### implementation
config = mkIf cfg.enable {
users.users.monetdb = mkIf (cfg.user == "monetdb") {
uid = config.ids.uids.monetdb;
group = cfg.group;
description = "MonetDB user";
home = cfg.dataDir;
createHome = true;
};
users.groups.monetdb = mkIf (cfg.group == "monetdb") {
gid = config.ids.gids.monetdb;
members = [ cfg.user ];
};
environment.systemPackages = [ cfg.package ];
systemd.services.monetdb = {
description = "MonetDB database server";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
path = [ cfg.package ];
unitConfig.RequiresMountsFor = "${cfg.dataDir}";
serviceConfig = {
User = cfg.user;
Group = cfg.group;
ExecStart = "${cfg.package}/bin/monetdbd start -n ${cfg.dataDir}";
ExecStop = "${cfg.package}/bin/monetdbd stop ${cfg.dataDir}";
};
preStart = ''
if [ ! -e ${cfg.dataDir}/.merovingian_properties ]; then
# Create the dbfarm (as cfg.user)
${cfg.package}/bin/monetdbd create ${cfg.dataDir}
fi
# Update the properties
${cfg.package}/bin/monetdbd set port=${toString cfg.port} ${cfg.dataDir}
${cfg.package}/bin/monetdbd set listenaddr=${cfg.listenAddress} ${cfg.dataDir}
'';
};
};
}