vsphere: Add ResourcePoolPath information in the machineset

Vcenter can have multiple datacenters and clusters. When a new cluster
is created, the machine-api operator fails to find a default resource
pool because there are multiple and there is ambiguity in choice.

This will specify the exact path to reference the resources which will
remove this ambiguity and will not cause failure in the installation
process.

pkg/asset/machines/vsphere/machines.go

@@ -65,6 +65,7 @@ func Machines(clusterID string, config *types.InstallConfig, pool *types.Machine
 
 func provider(clusterID string, platform *vsphere.Platform, mpool *vsphere.MachinePool, osImage string, userDataSecret string) (*vsphereapis.VSphereMachineProviderSpec, error) {
 	folder := fmt.Sprintf("/%s/vm/%s", platform.Datacenter, clusterID)
+	resourcePool := fmt.Sprintf("/%s/host/%s/Resources", platform.Datacenter, platform.Cluster)
 	if platform.Folder != "" {
 		folder = platform.Folder
 	}
@@ -85,10 +86,11 @@ func provider(clusterID string, platform *vsphere.Platform, mpool *vsphere.Machi
 			},
 		},
 		Workspace: &vsphereapis.Workspace{
-			Server:     platform.VCenter,
-			Datacenter: platform.Datacenter,
-			Datastore:  platform.DefaultDatastore,
-			Folder:     folder,
+			Server:       platform.VCenter,
+			Datacenter:   platform.Datacenter,
+			Datastore:    platform.DefaultDatastore,
+			Folder:       folder,
+			ResourcePool: resourcePool,
 		},
 		NumCPUs:           mpool.NumCPUs,
 		NumCoresPerSocket: mpool.NumCoresPerSocket,