[pve-devel] [PATCH qemu-server 7/7] PVE/QemuMigrate: check for mapped resources on migration

[Dominik Csapak <d.csapak@proxmox.com>]

they can only be migrated to nodes where there exists a mapping and if
the migration is done offline

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
 PVE/QemuMigrate.pm | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/PVE/QemuMigrate.pm b/PVE/QemuMigrate.pm
index d52dc8d..d40beac 100644
--- a/PVE/QemuMigrate.pm
+++ b/PVE/QemuMigrate.pm
@@ -162,7 +162,7 @@ sub prepare {
 	$self->{vm_was_paused} = 1 if PVE::QemuServer::vm_is_paused($vmid);
     }
 
-    my $loc_res = PVE::QemuServer::check_local_resources($conf, 1);
+    my ($loc_res, $mapped_res, $not_allowed_nodes) = PVE::QemuServer::check_local_resources($conf, 1);
     if (scalar @$loc_res) {
 	if ($self->{running} || !$self->{opts}->{force}) {
 	    die "can't migrate VM which uses local devices: " . join(", ", @$loc_res) . "\n";
@@ -171,6 +171,17 @@ sub prepare {
 	}
     }
 
+    if (scalar @$mapped_res) {
+	my $not_available = $not_allowed_nodes->{$self->{node}};
+	if ($self->{running}) {
+	    die "can't migrate running VM which uses mapped devices: " . join(", ", @$mapped_res) . "\n";
+	} elsif (scalar @$not_available) {
+	    die "can't migrate to '$self->{node}': missing mapped devices" . join(", ", @$not_available) . "\n";
+	} else {
+	    $self->log('info', "migrating VM which uses mapped local devices");
+	}
+    }
+
     my $vollist = PVE::QemuServer::get_vm_volumes($conf);
     foreach my $volid (@$vollist) {
 	my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
-- 
2.30.2