85 lines
2 KiB
Nix
85 lines
2 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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cfg = config.services.clickhouse;
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in
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with lib;
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{
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###### interface
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options = {
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services.clickhouse = {
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enable = mkEnableOption (lib.mdDoc "ClickHouse database server");
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package = mkOption {
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type = types.package;
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default = pkgs.clickhouse;
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defaultText = lib.literalExpression "pkgs.clickhouse";
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description = lib.mdDoc ''
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ClickHouse package to use.
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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users.users.clickhouse = {
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name = "clickhouse";
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uid = config.ids.uids.clickhouse;
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group = "clickhouse";
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description = "ClickHouse server user";
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};
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users.groups.clickhouse.gid = config.ids.gids.clickhouse;
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systemd.services.clickhouse = {
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description = "ClickHouse server";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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serviceConfig = {
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Type = "notify";
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User = "clickhouse";
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Group = "clickhouse";
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ConfigurationDirectory = "clickhouse-server";
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AmbientCapabilities = "CAP_SYS_NICE";
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StateDirectory = "clickhouse";
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LogsDirectory = "clickhouse";
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ExecStart = "${cfg.package}/bin/clickhouse-server --config-file=/etc/clickhouse-server/config.xml";
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TimeoutStartSec = "infinity";
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};
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environment = {
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# Switching off watchdog is very important for sd_notify to work correctly.
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CLICKHOUSE_WATCHDOG_ENABLE = "0";
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};
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};
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environment.etc = {
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"clickhouse-server/config.xml" = {
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source = "${cfg.package}/etc/clickhouse-server/config.xml";
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};
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"clickhouse-server/users.xml" = {
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source = "${cfg.package}/etc/clickhouse-server/users.xml";
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};
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};
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environment.systemPackages = [ cfg.package ];
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# startup requires a `/etc/localtime` which only if exists if `time.timeZone != null`
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time.timeZone = mkDefault "UTC";
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};
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}
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