fix bugs in dcs

openstack/dcs/v1/instances/requests.go

@@ -101,7 +101,7 @@ type InstanceBackupPolicy struct {
 type PeriodicalBackupPlan struct {
 	// Time at which backup starts.
 	// "00:00-01:00" indicates that backup starts at 00:00:00.
-	BeginAt int `json:"begin_at" required:"true"`
+	BeginAt string `json:"begin_at" required:"true"`
 
 	// Interval at which backup is performed.
 	// Currently, only weekly backup is supported.
@@ -238,3 +238,40 @@ func UpdatePassword(client *golangsdk.ServiceClient, id string, opts UpdatePassw
 	})
 	return
 }
+
+//ExtendOptsBuilder is an interface which can build the map paramter of extend function
+type ExtendOptsBuilder interface {
+	ToExtendMap() (map[string]interface{}, error)
+}
+
+//ExtendOpts is a struct which represents the parameters of extend function
+type ExtendOpts struct {
+	// New specifications (memory space) of the DCS instance.
+	// The new specification value to which the DCS instance
+	// will be scaled up must be greater than the current specification value.
+	// Unit: GB.
+	NewCapacity int `json:"new_capacity" required:"true"`
+
+	// New order ID.
+	OrderID string `json:"order_id,omitempty"`
+}
+
+// ToExtendMap is used for type convert
+func (opts ExtendOpts) ToExtendMap() (map[string]interface{}, error) {
+	return golangsdk.BuildRequestBody(opts, "")
+}
+
+// Extend is extending for a dcs instance
+func Extend(client *golangsdk.ServiceClient, id string, opts ExtendOptsBuilder) (r ExtendResult) {
+
+	body, err := opts.ToExtendMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+
+	_, r.Err = client.Post(extendURL(client, id), body, &r.Body, &golangsdk.RequestOpts{
+		OkCodes: []int{204},
+	})
+	return
+}

openstack/dcs/v1/instances/results.go

@@ -104,3 +104,8 @@ func (r UpdatePasswordResult) Extract() (*Password, error) {
 	err := r.Result.ExtractInto(&s)
 	return &s, err
 }
+
+// ExtendResult is a struct from which can get the result of extend method
+type ExtendResult struct {
+	golangsdk.Result
+}

openstack/dcs/v1/instances/urls.go

@@ -5,6 +5,7 @@ import "github.com/huaweicloud/golangsdk"
 // endpoint/instances
 const resourcePath = "instances"
 const passwordPath = "password"
+const extendPath = "extend"
 
 // createURL will build the rest query url of creation
 func createURL(client *golangsdk.ServiceClient) string {
@@ -30,3 +31,8 @@ func getURL(client *golangsdk.ServiceClient, id string) string {
 func passwordURL(client *golangsdk.ServiceClient, id string) string {
 	return client.ServiceURL(resourcePath, id, passwordPath)
 }
+
+// extendURL will build the extend update function
+func extendURL(client *golangsdk.ServiceClient, id string) string {
+	return client.ServiceURL(resourcePath, id, extendPath)
+}