diff options
Diffstat (limited to 'nixpkgs/nixos/modules/services/network-filesystems/drbd.nix')
-rw-r--r-- | nixpkgs/nixos/modules/services/network-filesystems/drbd.nix | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/services/network-filesystems/drbd.nix b/nixpkgs/nixos/modules/services/network-filesystems/drbd.nix new file mode 100644 index 000000000000..57b1fbb597c7 --- /dev/null +++ b/nixpkgs/nixos/modules/services/network-filesystems/drbd.nix @@ -0,0 +1,67 @@ +# Support for DRBD, the Distributed Replicated Block Device. + +{ config, lib, pkgs, ... }: + +with 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/bin/drbdadm + ''; + + environment.etc = singleton + { source = pkgs.writeText "drbd.conf" cfg.config; + target = "drbd.conf"; + }; + + systemd.services.drbd = { + after = [ "systemd-udev.settle.service" "network.target" ]; + wants = [ "systemd-udev.settle.service" ]; + wantedBy = [ "multi-user.target" ]; + script = '' + ${pkgs.drbd}/sbin/drbdadm up all + ''; + serviceConfig.ExecStop = '' + ${pkgs.drbd}/sbin/drbdadm down all + ''; + }; + }; +} |