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check if base volumes are unused before deleting a template

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we only checked if a vm had in use base disks when deleting them,
at which point we do not stop to delete the vm even when a
disk deletion fails, which means we could successfully delete the config
and all not used (base) disks of a template, resulting in left over vm disks

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This commit is contained in:
Dominik Csapak 2017-10-13 10:00:53 +02:00 committed by Fabian Grünbichler
parent 8f943606bd
commit 5e67a2d2c4
1 changed files with 17 additions and 0 deletions
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17
PVE/QemuServer.pm
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@ -2111,6 +2111,23 @@ sub destroy_vm {
PVE::QemuConfig->check_lock($conf) if !$skiplock;
if ($conf->{template}) {
# check if any base image is still used by a linked clone
foreach_drive($conf, sub {
my ($ds, $drive) = @_;
return if drive_is_cdrom($drive);
my $volid = $drive->{file};
return if !$volid || $volid =~ m|^/|;
die "base volume '$volid' is still in use by linked cloned\n"
if PVE::Storage::volume_is_base_and_used($storecfg, $volid);
});
}
# only remove disks owned by this VM
foreach_drive($conf, sub {
my ($ds, $drive) = @_;