132 lines
3 KiB
Nix
132 lines
3 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.mongodb;
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mongodb = cfg.package;
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mongoCnf = pkgs.writeText "mongodb.conf"
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''
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net.bindIp: ${cfg.bind_ip}
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${optionalString cfg.quiet "systemLog.quiet: true"}
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systemLog.destination: syslog
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storage.dbPath: ${cfg.dbpath}
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${optionalString (cfg.replSetName != "") "replication.replSetName: ${cfg.replSetName}"}
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${cfg.extraConfig}
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'';
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in
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{
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###### interface
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options = {
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services.mongodb = {
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enable = mkOption {
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default = false;
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description = "
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Whether to enable the MongoDB server.
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";
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};
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package = mkOption {
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default = pkgs.mongodb;
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defaultText = "pkgs.mongodb";
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type = types.package;
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description = "
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Which MongoDB derivation to use.
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";
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};
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user = mkOption {
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default = "mongodb";
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description = "User account under which MongoDB runs";
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};
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bind_ip = mkOption {
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default = "127.0.0.1";
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description = "IP to bind to";
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};
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quiet = mkOption {
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default = false;
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description = "quieter output";
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};
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dbpath = mkOption {
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default = "/var/db/mongodb";
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description = "Location where MongoDB stores its files";
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};
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pidFile = mkOption {
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default = "/run/mongodb.pid";
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description = "Location of MongoDB pid file";
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};
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replSetName = mkOption {
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default = "";
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description = ''
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If this instance is part of a replica set, set its name here.
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Otherwise, leave empty to run as single node.
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'';
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};
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extraConfig = mkOption {
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default = "";
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example = ''
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storage.journal.enabled: false
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'';
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description = "MongoDB extra configuration in YAML format";
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};
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};
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};
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###### implementation
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config = mkIf config.services.mongodb.enable {
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users.users.mongodb = mkIf (cfg.user == "mongodb")
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{ name = "mongodb";
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uid = config.ids.uids.mongodb;
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description = "MongoDB server user";
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};
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environment.systemPackages = [ mongodb ];
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systemd.services.mongodb =
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{ description = "MongoDB 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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ExecStart = "${mongodb}/bin/mongod --config ${mongoCnf} --fork --pidfilepath ${cfg.pidFile}";
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User = cfg.user;
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PIDFile = cfg.pidFile;
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Type = "forking";
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TimeoutStartSec=120; # intial creating of journal can take some time
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PermissionsStartOnly = true;
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};
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preStart = ''
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rm ${cfg.dbpath}/mongod.lock || true
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if ! test -e ${cfg.dbpath}; then
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install -d -m0700 -o ${cfg.user} ${cfg.dbpath}
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fi
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if ! test -e ${cfg.pidFile}; then
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install -D -o ${cfg.user} /dev/null ${cfg.pidFile}
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fi
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'';
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};
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};
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}
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