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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.nfs.server;
exports = pkgs.writeText "exports" cfg.exports;
in
{
imports = [
(mkRenamedOptionModule [ "services" "nfs" "lockdPort" ] [ "services" "nfs" "server" "lockdPort" ])
(mkRenamedOptionModule [ "services" "nfs" "statdPort" ] [ "services" "nfs" "server" "statdPort" ])
];
###### interface
options = {
services.nfs = {
server = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable the kernel's NFS server.
'';
};
extraNfsdConfig = mkOption {
type = types.str;
default = "";
description = ''
Extra configuration options for the [nfsd] section of /etc/nfs.conf.
'';
};
exports = mkOption {
type = types.lines;
default = "";
description = ''
Contents of the /etc/exports file. See
<citerefentry><refentrytitle>exports</refentrytitle>
<manvolnum>5</manvolnum></citerefentry> for the format.
'';
};
hostName = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
Hostname or address on which NFS requests will be accepted.
Default is all. See the <option>-H</option> option in
<citerefentry><refentrytitle>nfsd</refentrytitle>
<manvolnum>8</manvolnum></citerefentry>.
'';
};
nproc = mkOption {
type = types.int;
default = 8;
description = ''
Number of NFS server threads. Defaults to the recommended value of 8.
'';
};
createMountPoints = mkOption {
type = types.bool;
default = false;
description = "Whether to create the mount points in the exports file at startup time.";
};
mountdPort = mkOption {
type = types.nullOr types.int;
default = null;
example = 4002;
description = ''
Use fixed port for rpc.mountd, useful if server is behind firewall.
'';
};
lockdPort = mkOption {
type = types.nullOr types.int;
default = null;
example = 4001;
description = ''
Use a fixed port for the NFS lock manager kernel module
(<literal>lockd/nlockmgr</literal>). This is useful if the
NFS server is behind a firewall.
'';
};
statdPort = mkOption {
type = types.nullOr types.int;
default = null;
example = 4000;
description = ''
Use a fixed port for <command>rpc.statd</command>. This is
useful if the NFS server is behind a firewall.
'';
};
};
};
};
###### implementation
config = mkIf cfg.enable {
services.nfs.extraConfig = ''
[nfsd]
threads=${toString cfg.nproc}
${optionalString (cfg.hostName != null) "host=${cfg.hostName}"}
${cfg.extraNfsdConfig}
[mountd]
${optionalString (cfg.mountdPort != null) "port=${toString cfg.mountdPort}"}
[statd]
${optionalString (cfg.statdPort != null) "port=${toString cfg.statdPort}"}
[lockd]
${optionalString (cfg.lockdPort != null) ''
port=${toString cfg.lockdPort}
udp-port=${toString cfg.lockdPort}
''}
'';
services.rpcbind.enable = true;
boot.supportedFilesystems = [ "nfs" ]; # needed for statd and idmapd
environment.etc.exports.source = exports;
systemd.services.nfs-server =
{ enable = true;
wantedBy = [ "multi-user.target" ];
preStart =
''
mkdir -p /var/lib/nfs/v4recovery
'';
};
systemd.services.nfs-mountd =
{ enable = true;
restartTriggers = [ exports ];
preStart =
''
mkdir -p /var/lib/nfs
${optionalString cfg.createMountPoints
''
# create export directories:
# skip comments, take first col which may either be a quoted
# "foo bar" or just foo (-> man export)
sed '/^#.*/d;s/^"\([^"]*\)".*/\1/;t;s/[ ].*//' ${exports} \
| xargs -d '\n' mkdir -p
''
}
'';
};
};
}
|