[pve-devel] [Patch V2 container] fix #1778: check if storage support templates

[Wolfgang Link]

LXC can only create templates on storages which support linked clones.
To prevent this, we will check before we convert to a template if the
storage support this.
---
 src/PVE/API2/LXC.pm | 9 +++++++++
 1 file changed, 9 insertions(+)

[Patch V2]
change formatting
rename var
fix grammar

diff --git a/src/PVE/API2/LXC.pm b/src/PVE/API2/LXC.pm
index f555b84..651138f 100644
--- a/src/PVE/API2/LXC.pm
+++ b/src/PVE/API2/LXC.pm
@@ -1166,6 +1166,15 @@ __PACKAGE__->register_method({
 	    die "you can't convert a CT to template if the CT is running\n"
 		if PVE::LXC::check_running($vmid);
 
+	    my $scfg = PVE::Storage::config();
+	    PVE::LXC::Config->foreach_mountpoint($conf, sub {
+		my ($ms, $mp) = @_;
+
+		my ($sid) =PVE::Storage::parse_volume_id($mp->{volume}, 0);
+		die "Storage '$sid' does not support templates!\n"
+		    if $scfg->{ids}->{$sid}->{path};
+	    });
+
 	    my $realcmd = sub {
 		PVE::LXC::template_create($vmid, $conf);
 
-- 
2.11.0