[pve-devel] [PATCH container] start/fix #1478: add check for unsupported config

[Philip Abernethy]

Adds a check if an unprivileged container is configured to use
quota on any of its mountpoints. If so an understandable error
message is given. Ideally I'd like to catch those
configurations on the GUI, too, to avoid users just running
into it.
---
 src/PVE/API2/LXC/Status.pm | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/PVE/API2/LXC/Status.pm b/src/PVE/API2/LXC/Status.pm
index 89a2fca..58ed569 100644
--- a/src/PVE/API2/LXC/Status.pm
+++ b/src/PVE/API2/LXC/Status.pm
@@ -177,6 +177,16 @@ __PACKAGE__->register_method({
 			PVE::LXC::Config->check_lock($conf);
 		    }
 
+		    my $unprivileged = $conf->{unprivileged} // 0;
+
+		    my $uses_quota = 0;
+		    PVE::LXC::Config->foreach_mountpoint($conf, sub {
+			my ($ms, $mountpoint) = @_;
+			$uses_quota = $uses_quota || $mountpoint->{quota};
+		    });
+
+		    die "Quotas are not supported by unprivileged containers.\n" if ($unprivileged && $uses_quota);
+
 		    my $storage_cfg = cfs_read_file("storage.cfg");
 
 		    PVE::LXC::update_lxc_config($vmid, $conf);
-- 
2.11.0