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