Patch deployment spec metadata (#928)

runtime/kubernetes/client/kubernetes.go

@@ -8,6 +8,16 @@ type Kubernetes interface {
 	ListDeployments(labels map[string]string) (*DeploymentList, error)
 }
 
+// Template is micro deployment template
+type Template struct {
+	Metadata *Metadata `json:"metadata,omitempty"`
+}
+
+// Spec defines micro deployment spec
+type Spec struct {
+	Template *Template `json:"template,omitempty"`
+}
+
 // Metadata defines api request metadata
 type Metadata struct {
 	Name        string            `json:"name,omitempty"`

runtime/kubernetes/kubernetes.go

@@ -116,7 +116,7 @@ func (k *kubernetes) Delete(s *runtime.Service) error {
 // Update the service in place
 func (k *kubernetes) Update(s *runtime.Service) error {
 	type body struct {
-		Metadata *client.Metadata `json:"metadata"`
+		Spec *client.Spec `json:"spec"`
 	}
 	// parse version into human readable timestamp
 	updateTimeStamp, err := strconv.ParseInt(s.Version, 10, 64)
@@ -126,11 +126,15 @@ func (k *kubernetes) Update(s *runtime.Service) error {
 	unixTimeUTC := time.Unix(updateTimeStamp, 0)
 	// metada which we will PATCH deployment with
 	reqBody := body{
+		Spec: &client.Spec{
+			Template: &client.Template{
 				Metadata: &client.Metadata{
 					Annotations: map[string]string{
 						"build": unixTimeUTC.Format(time.RFC3339),
 					},
 				},
+			},
+		},
 	}
 	return k.client.UpdateDeployment(s.Name, reqBody)
 }