[pve-devel] [PATCH v3 qemu-server] fix #4201: delete cloud-init disk on rollback
Mira Limbeck
m.limbeck at proxmox.com
Fri Nov 11 16:46:35 CET 2022
If the config doesn't contain the cloud-init disk anymore after the
rollback, we have to clean it up since otherwise no further disk can be
attached unless the one still existing on the storage is deleted.
Signed-off-by: Mira Limbeck <m.limbeck at proxmox.com>
Reviewed-by: Stefan Hanreich <s.hanreich at proxmox.com>
Tested-by: Stefan Hanreich <s.hanreich at proxmox.com>
---
v3:
- rebased on top of master
- added R-b/T-b tags from v2
v2:
- chose the add_unused_volume way as @fiona recommended, the
implementation is a lot cleaner, but contains a cloudinit regex
- removed the 2nd patch for reusing already existing disks when
adding a cloudinit disk
PVE/QemuConfig.pm | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/PVE/QemuConfig.pm b/PVE/QemuConfig.pm
index 0939538..051382c 100644
--- a/PVE/QemuConfig.pm
+++ b/PVE/QemuConfig.pm
@@ -498,7 +498,7 @@ sub __snapshot_rollback_get_unused {
$class->foreach_volume($conf, sub {
my ($vs, $volume) = @_;
- return if PVE::QemuServer::drive_is_cdrom($volume);
+ return if PVE::QemuServer::drive_is_cdrom($volume, 1);
my $found = 0;
my $volid = $volume->{file};
@@ -507,7 +507,7 @@ sub __snapshot_rollback_get_unused {
my ($ds, $drive) = @_;
return if $found;
- return if PVE::QemuServer::drive_is_cdrom($drive);
+ return if PVE::QemuServer::drive_is_cdrom($drive, 1);
$found = 1
if ($drive->{file} && $drive->{file} eq $volid);
@@ -519,6 +519,19 @@ sub __snapshot_rollback_get_unused {
return $unused;
}
+sub add_unused_volume {
+ my ($class, $config, $volid) = @_;
+
+ if ($volid =~ m/vm-\d+-cloudinit/) {
+ print "found unused cloudinit disk '$volid', removing it\n";
+ my $storecfg = PVE::Storage::config();
+ PVE::Storage::vdisk_free($storecfg, $volid);
+ return undef;
+ } else {
+ return $class->SUPER::add_unused_volume($config, $volid);
+ }
+}
+
sub load_current_config {
my ($class, $vmid, $current) = @_;
--
2.30.2
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