depot/nixos/modules/services/databases/clickhouse.nix
Luke Granger-Brown 57725ef3ec Squashed 'third_party/nixpkgs/' content from commit 76612b17c0ce
git-subtree-dir: third_party/nixpkgs
git-subtree-split: 76612b17c0ce71689921ca12d9ffdc9c23ce40b2
2024-11-10 23:59:47 +00:00

78 lines
1.8 KiB
Nix

{ config, lib, pkgs, ... }:
let
cfg = config.services.clickhouse;
in
with lib;
{
###### interface
options = {
services.clickhouse = {
enable = mkEnableOption "ClickHouse database server";
package = mkPackageOption pkgs "clickhouse" { };
};
};
###### 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 = {
Type = "notify";
User = "clickhouse";
Group = "clickhouse";
ConfigurationDirectory = "clickhouse-server";
AmbientCapabilities = "CAP_SYS_NICE";
StateDirectory = "clickhouse";
LogsDirectory = "clickhouse";
ExecStart = "${cfg.package}/bin/clickhouse-server --config-file=/etc/clickhouse-server/config.xml";
TimeoutStartSec = "infinity";
};
environment = {
# Switching off watchdog is very important for sd_notify to work correctly.
CLICKHOUSE_WATCHDOG_ENABLE = "0";
};
};
environment.etc = {
"clickhouse-server/config.xml" = {
source = "${cfg.package}/etc/clickhouse-server/config.xml";
};
"clickhouse-server/users.xml" = {
source = "${cfg.package}/etc/clickhouse-server/users.xml";
};
};
environment.systemPackages = [ cfg.package ];
# startup requires a `/etc/localtime` which only if exists if `time.timeZone != null`
time.timeZone = mkDefault "UTC";
};
}