nixpkgs/modules/tasks/filesystems/nfs.nix

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{ config, pkgs, ... }:
with pkgs.lib;
let
inInitrd = any (fs: fs == "nfs") config.boot.initrd.supportedFilesystems;
in
{
###### interface
options = {
services.nfs.client.enable = mkOption {
default = any (fs: fs.fsType == "nfs" || fs.fsType == "nfs4") config.fileSystems;
description = ''
Whether to enable support for mounting NFS filesystems.
'';
};
};
###### implementation
config = mkIf config.services.nfs.client.enable {
services.portmap.enable = true;
system.fsPackages = [ pkgs.nfsUtils ];
boot.initrd.kernelModules = mkIf inInitrd [ "nfs" ];
boot.initrd.extraUtilsCommands = mkIf inInitrd
''
# !!! Uh, why don't we just install mount.nfs?
cp -v ${pkgs.klibc}/lib/klibc/bin.static/nfsmount $out/bin
'';
jobs.statd =
{ description = "Kernel NFS server - Network Status Monitor";
path = [ pkgs.nfsUtils pkgs.sysvtools pkgs.utillinux ];
stopOn = ""; # needed during shutdown
preStart =
''
ensure portmap
mkdir -p /var/lib/nfs
mkdir -p /var/lib/nfs/sm
mkdir -p /var/lib/nfs/sm.bak
sm-notify -d
'';
daemonType = "fork";
exec = "rpc.statd --no-notify";
};
};
}