diff options
Diffstat (limited to 'nixos/modules/services/network-filesystems/drbd.nix')
-rw-r--r-- | nixos/modules/services/network-filesystems/drbd.nix | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/nixos/modules/services/network-filesystems/drbd.nix b/nixos/modules/services/network-filesystems/drbd.nix new file mode 100644 index 00000000000..1a00ccab0a6 --- /dev/null +++ b/nixos/modules/services/network-filesystems/drbd.nix @@ -0,0 +1,77 @@ +# Support for DRBD, the Distributed Replicated Block Device. + +{ config, pkgs, ... }: + +with pkgs.lib; + +let cfg = config.services.drbd; in + +{ + + ###### interface + + options = { + + services.drbd.enable = mkOption { + default = false; + type = types.bool; + description = '' + Whether to enable support for DRBD, the Distributed Replicated + Block Device. + ''; + }; + + services.drbd.config = mkOption { + default = ""; + type = types.string; + description = '' + Contents of the <filename>drbd.conf</filename> configuration file. + ''; + }; + + }; + + + ###### implementation + + config = 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/sbin/drbdadm + ''; + + environment.etc = singleton + { source = pkgs.writeText "drbd.conf" cfg.config; + target = "drbd.conf"; + }; + + jobs.drbd_up = + { name = "drbd-up"; + startOn = "stopped udevtrigger or ip-up"; + task = true; + script = + '' + ${pkgs.drbd}/sbin/drbdadm up all + ''; + }; + + jobs.drbd_down = + { name = "drbd-down"; + startOn = "starting shutdown"; + task = true; + script = + '' + ${pkgs.drbd}/sbin/drbdadm down all + ''; + }; + + }; + +} |