nixpkgs/nixos/modules/services/databases/clickhouse.nix
2021-05-19 14:08:46 -07:00

70 lines
1.5 KiB
Nix

{ config, lib, pkgs, ... }:
let
cfg = config.services.clickhouse;
in
with lib;
{
###### interface
options = {
services.clickhouse = {
enable = mkEnableOption "ClickHouse database server";
};
};
###### implementation
config = mkIf cfg.enable {
users.users.clickhouse = {
name = "clickhouse";
uid = config.ids.uids.clickhouse;
group = "clickhouse";
description = "ClickHouse server user";
};
users.groups.clickhouse.gid = config.ids.gids.clickhouse;
systemd.services.clickhouse = {
description = "ClickHouse server";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
serviceConfig = {
User = "clickhouse";
Group = "clickhouse";
ConfigurationDirectory = "clickhouse-server";
AmbientCapabilities = "CAP_SYS_NICE";
StateDirectory = "clickhouse";
LogsDirectory = "clickhouse";
ExecStart = "${pkgs.clickhouse}/bin/clickhouse-server --config-file=${pkgs.clickhouse}/etc/clickhouse-server/config.xml";
};
};
environment.etc = {
"clickhouse-server/config.xml" = {
source = "${pkgs.clickhouse}/etc/clickhouse-server/config.xml";
};
"clickhouse-server/users.xml" = {
source = "${pkgs.clickhouse}/etc/clickhouse-server/users.xml";
};
};
environment.systemPackages = [ pkgs.clickhouse ];
# startup requires a `/etc/localtime` which only if exists if `time.timeZone != null`
time.timeZone = mkDefault "UTC";
};
}