Add new AzureDisk API, but not implementation.

pkg/api/types.go

@@ -1059,11 +1059,16 @@ type PortworxVolumeSource struct {
 }
 
 type AzureDataDiskCachingMode string
+type AzureDataDiskKind string
 
 const (
 	AzureDataDiskCachingNone      AzureDataDiskCachingMode = "None"
 	AzureDataDiskCachingReadOnly  AzureDataDiskCachingMode = "ReadOnly"
 	AzureDataDiskCachingReadWrite AzureDataDiskCachingMode = "ReadWrite"
+
+	AzureSharedBlobDisk    AzureDataDiskKind = "Shared"
+	AzureDedicatedBlobDisk AzureDataDiskKind = "Dedicated"
+	AzureManagedDisk       AzureDataDiskKind = "Managed"
 )
 
 // AzureDisk represents an Azure Data Disk mount on the host and bind mount to the pod.
@@ -1084,6 +1089,8 @@ type AzureDiskVolumeSource struct {
 	// the ReadOnly setting in VolumeMounts.
 	// +optional
 	ReadOnly *bool
+	// Expected values Shared: mulitple blob disks per storage account  Dedicated: single blob disk per storage account  Managed: azure managed data disk (only in managed availability set). defaults to shared
+	Kind *AzureDataDiskKind
 }
 
 // ScaleIOVolumeSource represents a persistent ScaleIO volume