111 lines
2.9 KiB
Nix
111 lines
2.9 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.services.rethinkdb;
|
|
rethinkdb = cfg.package;
|
|
in
|
|
|
|
{
|
|
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
services.rethinkdb = {
|
|
|
|
enable = mkOption {
|
|
default = false;
|
|
description = "Whether to enable the RethinkDB server.";
|
|
};
|
|
|
|
#package = mkOption {
|
|
# default = pkgs.rethinkdb;
|
|
# description = "Which RethinkDB derivation to use.";
|
|
#};
|
|
|
|
user = mkOption {
|
|
default = "rethinkdb";
|
|
description = "User account under which RethinkDB runs.";
|
|
};
|
|
|
|
group = mkOption {
|
|
default = "rethinkdb";
|
|
description = "Group which rethinkdb user belongs to.";
|
|
};
|
|
|
|
dbpath = mkOption {
|
|
default = "/var/db/rethinkdb";
|
|
description = "Location where RethinkDB stores its data, 1 data directory per instance.";
|
|
};
|
|
|
|
pidpath = mkOption {
|
|
default = "/var/run/rethinkdb";
|
|
description = "Location where each instance's pid file is located.";
|
|
};
|
|
|
|
#cfgpath = mkOption {
|
|
# default = "/etc/rethinkdb/instances.d";
|
|
# description = "Location where RethinkDB stores it config files, 1 config file per instance.";
|
|
#};
|
|
|
|
# TODO: currently not used by our implementation.
|
|
#instances = mkOption {
|
|
# type = types.attrsOf types.str;
|
|
# default = {};
|
|
# description = "List of named RethinkDB instances in our cluster.";
|
|
#};
|
|
|
|
};
|
|
|
|
};
|
|
|
|
###### implementation
|
|
config = mkIf config.services.rethinkdb.enable {
|
|
|
|
environment.systemPackages = [ rethinkdb ];
|
|
|
|
systemd.services.rethinkdb = {
|
|
description = "RethinkDB server";
|
|
|
|
wantedBy = [ "multi-user.target" ];
|
|
after = [ "network.target" ];
|
|
|
|
serviceConfig = {
|
|
# TODO: abstract away 'default', which is a per-instance directory name
|
|
# allowing end user of this nix module to provide multiple instances,
|
|
# and associated directory per instance
|
|
ExecStart = "${rethinkdb}/bin/rethinkdb -d ${cfg.dbpath}/default";
|
|
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
|
|
User = cfg.user;
|
|
Group = cfg.group;
|
|
PIDFile = "${cfg.pidpath}/default.pid";
|
|
PermissionsStartOnly = true;
|
|
};
|
|
|
|
preStart = ''
|
|
if ! test -e ${cfg.dbpath}; then
|
|
install -d -m0755 -o ${cfg.user} -g ${cfg.group} ${cfg.dbpath}
|
|
install -d -m0755 -o ${cfg.user} -g ${cfg.group} ${cfg.dbpath}/default
|
|
chown -R ${cfg.user}:${cfg.group} ${cfg.dbpath}
|
|
fi
|
|
if ! test -e "${cfg.pidpath}/default.pid"; then
|
|
install -D -o ${cfg.user} -g ${cfg.group} /dev/null "${cfg.pidpath}/default.pid"
|
|
fi
|
|
'';
|
|
};
|
|
|
|
users.users.rethinkdb = mkIf (cfg.user == "rethinkdb")
|
|
{ name = "rethinkdb";
|
|
description = "RethinkDB server user";
|
|
};
|
|
|
|
users.groups = optionalAttrs (cfg.group == "rethinkdb") (singleton
|
|
{ name = "rethinkdb";
|
|
});
|
|
|
|
};
|
|
|
|
}
|