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|
# 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";
};
};
};
}
|
