pyrox.dev
1{ config, lib, pkgs, ... }:
2
3with lib;
4
5let
6
7 b2s = x: if x then "true" else "false";
8
9 cfg = config.services.mongodb;
10
11 mongodb = cfg.package;
12
13 mongoCnf = pkgs.writeText "mongodb.conf"
14 ''
15 bind_ip = ${cfg.bind_ip}
16 ${optionalString cfg.quiet "quiet = true"}
17 dbpath = ${cfg.dbpath}
18 syslog = true
19 fork = true
20 pidfilepath = ${cfg.pidFile}
21 ${optionalString (cfg.replSetName != "") "replSet = ${cfg.replSetName}"}
22 ${cfg.extraConfig}
23 '';
24
25in
26
27{
28
29 ###### interface
30
31 options = {
32
33 services.mongodb = {
34
35 enable = mkOption {
36 default = false;
37 description = "
38 Whether to enable the MongoDB server.
39 ";
40 };
41
42 package = mkOption {
43 default = pkgs.mongodb;
44 defaultText = "pkgs.mongodb";
45 type = types.package;
46 description = "
47 Which MongoDB derivation to use.
48 ";
49 };
50
51 user = mkOption {
52 default = "mongodb";
53 description = "User account under which MongoDB runs";
54 };
55
56 bind_ip = mkOption {
57 default = "127.0.0.1";
58 description = "IP to bind to";
59 };
60
61 quiet = mkOption {
62 default = false;
63 description = "quieter output";
64 };
65
66 dbpath = mkOption {
67 default = "/var/db/mongodb";
68 description = "Location where MongoDB stores its files";
69 };
70
71 pidFile = mkOption {
72 default = "/var/run/mongodb.pid";
73 description = "Location of MongoDB pid file";
74 };
75
76 replSetName = mkOption {
77 default = "";
78 description = ''
79 If this instance is part of a replica set, set its name here.
80 Otherwise, leave empty to run as single node.
81 '';
82 };
83
84 extraConfig = mkOption {
85 default = "";
86 example = ''
87 nojournal = true
88 '';
89 description = "MongoDB extra configuration";
90 };
91 };
92
93 };
94
95
96 ###### implementation
97
98 config = mkIf config.services.mongodb.enable {
99
100 users.extraUsers.mongodb = mkIf (cfg.user == "mongodb")
101 { name = "mongodb";
102 uid = config.ids.uids.mongodb;
103 description = "MongoDB server user";
104 };
105
106 environment.systemPackages = [ mongodb ];
107
108 systemd.services.mongodb =
109 { description = "MongoDB server";
110
111 wantedBy = [ "multi-user.target" ];
112 after = [ "network.target" ];
113
114 serviceConfig = {
115 ExecStart = "${mongodb}/bin/mongod --quiet --config ${mongoCnf}";
116 User = cfg.user;
117 PIDFile = cfg.pidFile;
118 Type = "forking";
119 TimeoutStartSec=120; # intial creating of journal can take some time
120 PermissionsStartOnly = true;
121 };
122
123 preStart = ''
124 rm ${cfg.dbpath}/mongod.lock || true
125 if ! test -e ${cfg.dbpath}; then
126 install -d -m0700 -o ${cfg.user} ${cfg.dbpath}
127 fi
128 if ! test -e ${cfg.pidFile}; then
129 install -D -o ${cfg.user} /dev/null ${cfg.pidFile}
130 fi
131 '';
132 };
133
134 };
135
136}