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