ncm-nfs: Allow daemon to reload to be specified

The name of the service/daemon is OS dependent, default to the more modern name.
For example in EL6 it was `nfs`, in EL7 `nfs` was a symlink to `nfs-server`, in EL8 only `nfs-server` exists and in Ubuntu it is `nfs-kernel-server`.

ncm-nfs/src/main/pan/components/nfs/schema.pan

@@ -29,6 +29,8 @@ type ${project.artifactId}_component = {
  If true, missing exports forces an empty exports file and a NFS service reload.
  If false, missing exports has no effect.}
  'server' : boolean = true
+ @{ Daemon to reload when changes are made }
+ 'daemon' : string_trimmed = 'nfs-server'
  @{This is a list of dicts with "path" giving the export path and
  "hosts" being a dict of host/option entries where the key is the escaped host name and
  the value the export options(e.g. for "nfsclient.example.org(rw)",

ncm-nfs/src/main/perl/nfs.pm

@@ -477,9 +477,9 @@ sub Configure
  if (! exists($tree->{server}) || $tree->{server}) {
  if ($self->exports($tree)) {
  # Force a reload of the nfs daemon.
- $self->info("Forcing nfs reload");
+ $self->info("Forcing ", $tree->{daemon}, " reload");
  # report error on failure
- CAF::Service->new(["nfs"], log => $self)->reload();
+ CAF::Service->new([$tree->{daemon}], log => $self)->reload();
  };
  } else {
  $self->verbose("Not a NFS server configuration");

ncm-nfs/src/test/perl/configure.t

@@ -2,7 +2,7 @@ use strict;
 use warnings;
 
 use Test::More;
-use Test::Quattor qw(configure configure_noserver configure_nomounts);
+use Test::Quattor qw(configure configure_noserver configure_nomounts configure_daemon);
 use Test::MockModule;
 
 use Test::Quattor::RegexpTest;
@@ -68,5 +68,13 @@ $process_mounts_arg = undef;
 is($cmp->Configure($nomounts), 1, "Configure returns 1 without mounts");
 ok(!defined($process_mounts_arg), "no nfs process_mounts without mounts");
 
+# configure with alternative daemon set
+my $cfgdaemon = get_config_for_profile('configure_daemon');
+foreach my $change (qw(exports)){
+ command_history_reset();
+ $res = {$change => 1};
+ is($cmp->Configure($cfgdaemon), 1, "Configure returns 1 (change $change)");
+ ok(command_history_ok([qr{service nfs-server reload}]), "nfs-server service reload when $change changed");
+};
 
 done_testing();

ncm-nfs/src/test/resources/configure_daemon.pan

@@ -0,0 +1,5 @@
+object template configure_daemon;
+
+include 'fstab_simple';
+
+"/software/components/nfs/daemon" = 'nfs-server';