163 lines
3.5 KiB
Nix
163 lines
3.5 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.riak;
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in
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{
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###### interface
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options = {
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services.riak = {
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enable = mkEnableOption "riak";
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package = mkOption {
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type = types.package;
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default = pkgs.riak;
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defaultText = "pkgs.riak";
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example = literalExample "pkgs.riak";
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description = ''
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Riak package to use.
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'';
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};
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nodeName = mkOption {
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type = types.string;
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default = "riak@127.0.0.1";
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description = ''
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Name of the Erlang node.
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'';
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};
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distributedCookie = mkOption {
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type = types.string;
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default = "riak";
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description = ''
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Cookie for distributed node communication. All nodes in the
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same cluster should use the same cookie or they will not be able to
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communicate.
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'';
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};
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dataDir = mkOption {
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type = types.path;
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default = "/var/db/riak";
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description = ''
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Data directory for Riak.
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'';
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};
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logDir = mkOption {
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type = types.path;
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default = "/var/log/riak";
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description = ''
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Log directory for Riak.
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'';
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Additional text to be appended to <filename>riak.conf</filename>.
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'';
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};
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extraAdvancedConfig = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Additional text to be appended to <filename>advanced.config</filename>.
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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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environment.systemPackages = [ cfg.package ];
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environment.etc."riak/riak.conf".text = ''
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nodename = ${cfg.nodeName}
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distributed_cookie = ${cfg.distributedCookie}
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platform_log_dir = ${cfg.logDir}
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platform_etc_dir = /etc/riak
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platform_data_dir = ${cfg.dataDir}
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${cfg.extraConfig}
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'';
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environment.etc."riak/advanced.config".text = ''
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${cfg.extraAdvancedConfig}
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'';
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users.users.riak = {
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name = "riak";
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uid = config.ids.uids.riak;
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group = "riak";
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description = "Riak server user";
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};
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users.groups.riak.gid = config.ids.gids.riak;
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systemd.services.riak = {
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description = "Riak Server";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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path = [
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pkgs.utillinux # for `logger`
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pkgs.bash
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];
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environment.HOME = "${cfg.dataDir}";
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environment.RIAK_DATA_DIR = "${cfg.dataDir}";
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environment.RIAK_LOG_DIR = "${cfg.logDir}";
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environment.RIAK_ETC_DIR = "/etc/riak";
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preStart = ''
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if ! test -e ${cfg.logDir}; then
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mkdir -m 0755 -p ${cfg.logDir}
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chown -R riak ${cfg.logDir}
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fi
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if ! test -e ${cfg.dataDir}; then
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mkdir -m 0700 -p ${cfg.dataDir}
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chown -R riak ${cfg.dataDir}
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fi
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'';
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serviceConfig = {
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ExecStart = "${cfg.package}/bin/riak console";
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ExecStop = "${cfg.package}/bin/riak stop";
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StandardInput = "tty";
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User = "riak";
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Group = "riak";
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PermissionsStartOnly = true;
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# Give Riak a decent amount of time to clean up.
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TimeoutStopSec = 120;
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LimitNOFILE = 65536;
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};
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unitConfig.RequiresMountsFor = [
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"${cfg.dataDir}"
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"${cfg.logDir}"
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"/etc/riak"
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];
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};
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};
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}
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