engine-orchestration: fix issue for empty product in vm metadata (#9610)

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
Co-authored-by: Rohit Yadav <rohit.yadav@shapeblue.com>

engine/api/src/main/java/com/cloud/vm/VirtualMachineManager.java

@@ -96,7 +96,7 @@ public interface VirtualMachineManager extends Manager {
     ConfigKey<String> VmMetadataProductName = new ConfigKey<>("Advanced", String.class,
             "vm.metadata.product", "",
             "If provided, a custom product name will be used in the instance metadata. When an empty" +
-                    "value is set then default product name will be 'CloudStack <HYPERVISIOR_NAME> Hypervisor'. " +
+                    "value is set then default product name will be 'CloudStack <HYPERVISOR_NAME> Hypervisor'. " +
                     "A custom product name may break cloud-init functionality with CloudStack datasource. Please " +
                     "refer documentation",
             true, ConfigKey.Scope.Zone);

engine/orchestration/src/main/java/com/cloud/vm/VirtualMachineManagerImpl.java

@@ -1108,7 +1108,7 @@ protected void updateVmMetadataManufacturerAndProduct(VirtualMachineTO vmTO, VMI
         }
         vmTO.setMetadataManufacturer(metadataManufacturer);
         String metadataProduct = VmMetadataProductName.valueIn(vm.getDataCenterId());
-        if (StringUtils.isBlank(metadataManufacturer)) {
+        if (StringUtils.isBlank(metadataProduct)) {
             metadataProduct = String.format("CloudStack %s Hypervisor", vm.getHypervisorType().toString());
         }
         vmTO.setMetadataProductName(metadataProduct);

engine/orchestration/src/test/java/com/cloud/vm/VirtualMachineManagerImplTest.java

@@ -1272,6 +1272,7 @@ private Pair<VirtualMachineTO, VMInstanceVO> getDummyVmTOAndVm() {
                 false, false, "Pass");
         VMInstanceVO vm = Mockito.mock(VMInstanceVO.class);
         Mockito.when(vm.getDataCenterId()).thenReturn(1L);
+        Mockito.when(vm.getHypervisorType()).thenReturn(HypervisorType.KVM);
         return new Pair<>(virtualMachineTO, vm);
     }
 
@@ -1284,6 +1285,17 @@ public void testUpdateVmMetadataManufacturerAndProductDefaultManufacturer() {
         Assert.assertEquals(VirtualMachineManager.VmMetadataManufacturer.defaultValue(), to.getMetadataManufacturer());
     }
 
+    @Test
+    public void testUpdateVmMetadataManufacturerAndProductCustomManufacturerDefaultProduct() {
+        String manufacturer = "Custom";
+        overrideVmMetadataConfigValue(manufacturer, "");
+        Pair<VirtualMachineTO, VMInstanceVO> pair = getDummyVmTOAndVm();
+        VirtualMachineTO to = pair.first();
+        virtualMachineManagerImpl.updateVmMetadataManufacturerAndProduct(to, pair.second());
+        Assert.assertEquals(manufacturer, to.getMetadataManufacturer());
+        Assert.assertEquals("CloudStack KVM Hypervisor", to.getMetadataProductName());
+    }
+
     @Test
     public void testUpdateVmMetadataManufacturerAndProductCustomManufacturer() {
         String manufacturer = UUID.randomUUID().toString();

plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/LibvirtVMDef.java

@@ -127,6 +127,9 @@ public GuestType getGuestType() {
         }
 
         public String getManufacturer() {
+            if (StringUtils.isEmpty(manufacturer)) {
+                return "Apache Software Foundation";
+            }
             return manufacturer;
         }
 
@@ -135,6 +138,9 @@ public void setManufacturer(String manufacturer) {
         }
 
         public String getProduct() {
+            if (StringUtils.isEmpty(product)) {
+                return "CloudStack KVM Hypervisor";
+            }
             return product;
         }