补充缺失的allowempty tag (#201)

* 补充缺失的allowempty tag

* 添加一个可以忽略的错误

pkg/util/azure/azure.go

@@ -597,7 +597,8 @@ func waitForComplatetion(client *autorest.Client, req *http.Request, resp *http.
 						}
 						switch azureError.Code {
 						// 忽略创建机器时初始化超时问题
-						case "OSProvisioningTimedOut", "OSProvisioningClientError":
+						case "OSProvisioningTimedOut", "OSProvisioningClientError", "OSProvisioningInternalError":
+							// {"code":"OSProvisioningInternalError","message":"OS Provisioning failed for VM 'stress-testvm-azure-1' due to an internal error: [000004] cloud-init appears to be running, this is not expected, cannot continue."}
 							log.Debugf("ignore OSProvisioning error: %s", azureError)
 							return nil, nil
 						default:

pkg/util/azure/instance.go

@@ -81,7 +81,7 @@ type DataDisk struct {
 type StorageProfile struct {
 	ImageReference ImageReference `json:"imageReference,omitempty"`
 	OsDisk         OSDisk         `json:"osDisk,omitempty"`
-	DataDisks      []DataDisk     `json:"dataDisks"`
+	DataDisks      []DataDisk     `json:"dataDisks,allowempty"`
 }
 
 type SSHPublicKey struct {