68 lines
1.3 KiB
Nix
68 lines
1.3 KiB
Nix
# Support for DRBD, the Distributed Replicated Block Device.
|
|
{
|
|
config,
|
|
lib,
|
|
pkgs,
|
|
...
|
|
}:
|
|
let
|
|
cfg = config.services.drbd;
|
|
in
|
|
|
|
{
|
|
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
services.drbd.enable = lib.mkOption {
|
|
default = false;
|
|
type = lib.types.bool;
|
|
description = ''
|
|
Whether to enable support for DRBD, the Distributed Replicated
|
|
Block Device.
|
|
'';
|
|
};
|
|
|
|
services.drbd.config = lib.mkOption {
|
|
default = "";
|
|
type = lib.types.lines;
|
|
description = ''
|
|
Contents of the {file}`drbd.conf` configuration file.
|
|
'';
|
|
};
|
|
|
|
};
|
|
|
|
###### implementation
|
|
|
|
config = lib.mkIf cfg.enable {
|
|
|
|
environment.systemPackages = [ pkgs.drbd ];
|
|
|
|
services.udev.packages = [ pkgs.drbd ];
|
|
|
|
boot.kernelModules = [ "drbd" ];
|
|
|
|
boot.extraModprobeConfig = ''
|
|
options drbd usermode_helper=/run/current-system/sw/bin/drbdadm
|
|
'';
|
|
|
|
environment.etc."drbd.conf" = {
|
|
source = pkgs.writeText "drbd.conf" cfg.config;
|
|
};
|
|
|
|
systemd.services.drbd = {
|
|
after = [
|
|
"systemd-udev.settle.service"
|
|
"network.target"
|
|
];
|
|
wants = [ "systemd-udev.settle.service" ];
|
|
wantedBy = [ "multi-user.target" ];
|
|
serviceConfig = {
|
|
ExecStart = "${pkgs.drbd}/bin/drbdadm up all";
|
|
ExecStop = "${pkgs.drbd}/bin/drbdadm down all";
|
|
};
|
|
};
|
|
};
|
|
}
|