123 lines
3 KiB
Nix
123 lines
3 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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inInitrd = any (fs: fs == "nfs") config.boot.initrd.supportedFilesystems;
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nfsStateDir = "/var/lib/nfs";
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rpcMountpoint = "${nfsStateDir}/rpc_pipefs";
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idmapdConfFile = pkgs.writeText "idmapd.conf" ''
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[General]
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Pipefs-Directory = ${rpcMountpoint}
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${optionalString (config.networking.domain != "")
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"Domain = ${config.networking.domain}"}
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[Mapping]
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Nobody-User = nobody
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Nobody-Group = nogroup
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[Translation]
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Method = nsswitch
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'';
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cfg = config.services.nfs;
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in
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{
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###### interface
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options = {
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services.nfs = {
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statdPort = mkOption {
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default = null;
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example = 4000;
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description = ''
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Use fixed port for rpc.statd, usefull if NFS server is behind firewall.
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'';
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};
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lockdPort = mkOption {
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default = null;
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example = 4001;
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description = ''
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Use fixed port for NFS lock manager kernel module (lockd/nlockmgr),
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usefull if NFS server is behind firewall.
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'';
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};
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};
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};
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###### implementation
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config = mkIf (any (fs: fs == "nfs" || fs == "nfs4") config.boot.supportedFilesystems) {
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services.rpcbind.enable = true;
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system.fsPackages = [ pkgs.nfsUtils ];
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boot.extraModprobeConfig = mkIf (cfg.lockdPort != null) ''
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options lockd nlm_udpport=${toString cfg.lockdPort} nlm_tcpport=${toString cfg.lockdPort}
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'';
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boot.kernelModules = [ "sunrpc" ];
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boot.initrd.kernelModules = mkIf inInitrd [ "nfs" ];
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systemd.services.statd =
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{ description = "NFSv3 Network Status Monitor";
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path = [ pkgs.nfsUtils pkgs.sysvtools pkgs.utillinux ];
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wantedBy = [ "multi-user.target" ];
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requires = [ "basic.target" "rpcbind.service" ];
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after = [ "basic.target" "rpcbind.service" "network.target" ];
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unitConfig.DefaultDependencies = false; # don't stop during shutdown
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preStart =
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''
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mkdir -p ${nfsStateDir}/sm
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mkdir -p ${nfsStateDir}/sm.bak
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sm-notify -d
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'';
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serviceConfig.Type = "forking";
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serviceConfig.ExecStart = ''
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@${pkgs.nfsUtils}/sbin/rpc.statd rpc.statd --no-notify \
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${if cfg.statdPort != null then "-p ${toString statdPort}" else ""}
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'';
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serviceConfig.Restart = "always";
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};
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systemd.services.idmapd =
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{ description = "NFSv4 ID Mapping Daemon";
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path = [ pkgs.sysvtools pkgs.utillinux ];
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wantedBy = [ "multi-user.target" ];
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requires = [ "rpcbind.service" ];
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after = [ "rpcbind.service" ];
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preStart =
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''
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mkdir -p ${rpcMountpoint}
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mount -t rpc_pipefs rpc_pipefs ${rpcMountpoint}
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'';
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postStop =
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''
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umount ${rpcMountpoint}
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'';
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serviceConfig.Type = "forking";
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serviceConfig.ExecStart = "@${pkgs.nfsUtils}/sbin/rpc.idmapd rpc.idmapd -c ${idmapdConfFile}";
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serviceConfig.Restart = "always";
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};
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};
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}
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