[pve-devel] [PATCH qemu-server 3/3] api: include not mapped resources for running vms in migrate preconditions

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

so that we can show a proper warning in the migrate dialog and check it
in the bulk migrate precondition check

the unavailable_storages and allowed_nodes should be the same as before

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
not super happy with this partial approach, we probably should just
always return the 'allowed_nodes' and 'not_allowed_nodes' and change
the gui to handle the running vs not running state?

 PVE/API2/Qemu.pm | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
index 8581a529..b0f155f7 100644
--- a/PVE/API2/Qemu.pm
+++ b/PVE/API2/Qemu.pm
@@ -4439,7 +4439,7 @@ __PACKAGE__->register_method({
 	    not_allowed_nodes => {
 		type => 'object',
 		optional => 1,
-		description => "List not allowed nodes with additional informations, only passed if VM is offline"
+		description => "List not allowed nodes with additional informations",
 	    },
 	    local_disks => {
 		type => 'array',
@@ -4496,25 +4496,28 @@ __PACKAGE__->register_method({
 
 	# if vm is not running, return target nodes where local storage/mapped devices are available
 	# for offline migration
+	my $checked_nodes = {};
+	my $allowed_nodes = [];
 	if (!$res->{running}) {
-	    $res->{allowed_nodes} = [];
-	    my $checked_nodes = PVE::QemuServer::check_local_storage_availability($vmconf, $storecfg);
+	    $checked_nodes = PVE::QemuServer::check_local_storage_availability($vmconf, $storecfg);
 	    delete $checked_nodes->{$localnode};
+	}
 
-	    foreach my $node (keys %$checked_nodes) {
-		my $missing_mappings = $missing_mappings_by_node->{$node};
-		if (scalar($missing_mappings->@*)) {
-		    $checked_nodes->{$node}->{'unavailable-resources'} = $missing_mappings;
-		    next;
-		}
+	foreach my $node ((keys $checked_nodes->%*, keys $missing_mappings_by_node->%*)) {
+	    my $missing_mappings = $missing_mappings_by_node->{$node};
+	    if (scalar($missing_mappings->@*)) {
+		$checked_nodes->{$node}->{'unavailable-resources'} = $missing_mappings;
+		next;
+	    }
 
+	    if (!$res->{running}) {
 		if (!defined($checked_nodes->{$node}->{unavailable_storages})) {
-		    push @{$res->{allowed_nodes}}, $node;
+		    push $allowed_nodes->@*, $node;
 		}
-
 	    }
-	    $res->{not_allowed_nodes} = $checked_nodes;
 	}
+	$res->{not_allowed_nodes} = $checked_nodes if scalar(keys($checked_nodes->%*)) || !$res->{running};
+	$res->{allowed_nodes} = $allowed_nodes if scalar($allowed_nodes->@*) || !$res->{running};
 
 	my $local_disks = &$check_vm_disks_local($storecfg, $vmconf, $vmid);
 	$res->{local_disks} = [ values %$local_disks ];;
-- 
2.39.2