Disallow importing to disbled clusters

Author: vishesh92

server/src/main/java/org/apache/cloudstack/vm/UnmanagedVMsManagerImpl.java

@@ -1306,6 +1306,10 @@ private UserVmResponse baseImportInstance(ImportUnmanagedInstanceCmd cmd) {
         Long clusterId = cmd.getClusterId();
         Cluster cluster = basicAccessChecks(clusterId);
 
+        if (!cluster.getAllocationState().equals(Cluster.AllocationState.Enabled)) {
+            throw new InvalidParameterValueException(String.format("Cluster [%s] is not enabled.", cluster));
+        }
+
         final Account caller = CallContext.current().getCallingAccount();
         final DataCenter zone = dataCenterDao.findById(cluster.getDataCenterId());
         final Account owner = accountService.getActiveAccountById(cmd.getEntityOwnerId());

server/src/test/java/org/apache/cloudstack/vm/UnmanagedVMsManagerImplTest.java

@@ -65,6 +65,7 @@
 import com.cloud.network.dao.NetworkVO;
 import com.cloud.offering.NetworkOffering;
 import com.cloud.offering.ServiceOffering;
+import com.cloud.org.Grouping;
 import com.cloud.resource.ResourceManager;
 import com.cloud.resource.ResourceState;
 import com.cloud.service.ServiceOfferingVO;
@@ -598,6 +599,7 @@ private void baseTestImportVmFromVmwareToKvm(VcenterParameter vcenterParameter,
 
         ClusterVO cluster = mock(ClusterVO.class);
         when(cluster.getId()).thenReturn(clusterId);
+        when(cluster.getAllocationState()).thenReturn(Grouping.AllocationState.Enabled);
         when(cluster.getHypervisorType()).thenReturn(Hypervisor.HypervisorType.KVM);
         when(cluster.getDataCenterId()).thenReturn(zoneId);
         when(clusterDao.findById(clusterId)).thenReturn(cluster);

ui/src/views/tools/ManageInstances.vue

@@ -826,7 +826,8 @@ export default {
           options: {
             zoneid: _.get(this.zone, 'id'),
             podid: this.podId,
-            hypervisor: this.destinationHypervisor
+            hypervisor: this.destinationHypervisor,
+            allocationstate: 'Enabled'
           },
           field: 'clusterid'
         },