29027fd1e1
Using pkgs.lib on the spine of module evaluation is problematic because the pkgs argument depends on the result of module evaluation. To prevent an infinite recursion, pkgs and some of the modules are evaluated twice, which is inefficient. Using ‘with lib’ prevents this problem.
132 lines
2.8 KiB
Nix
132 lines
2.8 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
|
|
b2s = x: if x then "true" else "false";
|
|
|
|
cfg = config.services.mongodb;
|
|
|
|
mongodb = cfg.package;
|
|
|
|
mongoCnf = pkgs.writeText "mongodb.conf"
|
|
''
|
|
bind_ip = ${cfg.bind_ip}
|
|
${optionalString cfg.quiet "quiet = true"}
|
|
dbpath = ${cfg.dbpath}
|
|
logpath = ${cfg.logpath}
|
|
logappend = ${b2s cfg.logappend}
|
|
${optionalString (cfg.replSetName != "") "replSet = ${cfg.replSetName}"}
|
|
'';
|
|
|
|
in
|
|
|
|
{
|
|
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
services.mongodb = {
|
|
|
|
enable = mkOption {
|
|
default = false;
|
|
description = "
|
|
Whether to enable the MongoDB server.
|
|
";
|
|
};
|
|
|
|
package = mkOption {
|
|
default = 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";
|
|
};
|
|
|
|
logpath = mkOption {
|
|
default = "/var/log/mongodb/mongod.log";
|
|
description = "Location where MongoDB stores its logfile";
|
|
};
|
|
|
|
logappend = mkOption {
|
|
default = true;
|
|
description = "Append logfile instead over overwriting";
|
|
};
|
|
|
|
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.
|
|
'';
|
|
};
|
|
};
|
|
|
|
};
|
|
|
|
|
|
###### implementation
|
|
|
|
config = mkIf config.services.mongodb.enable {
|
|
|
|
users.extraUsers.mongodb = mkIf (cfg.user == "mongodb")
|
|
{ name = "mongodb";
|
|
uid = config.ids.uids.mongodb;
|
|
description = "MongoDB server user";
|
|
};
|
|
|
|
environment.systemPackages = [ mongodb ];
|
|
|
|
systemd.services.mongodb_init =
|
|
{ description = "MongoDB server initialisation";
|
|
|
|
wantedBy = [ "mongodb.service" ];
|
|
before = [ "mongodb.service" ];
|
|
|
|
serviceConfig.Type = "oneshot";
|
|
|
|
script = ''
|
|
if ! test -e ${cfg.dbpath}; then
|
|
install -d -m0700 -o ${cfg.user} ${cfg.dbpath}
|
|
install -d -m0755 -o ${cfg.user} `dirname ${cfg.logpath}`
|
|
fi
|
|
'';
|
|
};
|
|
|
|
systemd.services.mongodb =
|
|
{ description = "MongoDB server";
|
|
|
|
wantedBy = [ "multi-user.target" ];
|
|
after = [ "network.target" ];
|
|
|
|
serviceConfig = {
|
|
ExecStart = "${mongodb}/bin/mongod --quiet --config ${mongoCnf}";
|
|
User = cfg.user;
|
|
};
|
|
};
|
|
|
|
};
|
|
|
|
}
|