feat: support targetPort option in goctl kube (#2378)

tools/goctl/kube/kube.go

@@ -36,6 +36,7 @@ type Deployment struct {
 	Replicas        int
 	Revisions       int
 	Port            int
+	TargetPort      int
 	NodePort        int
 	UseNodePort     bool
 	RequestCpu      int
@@ -81,6 +82,10 @@ func deploymentCommand(_ *cobra.Command, _ []string) error {
 	}
 	defer out.Close()
 
+	if varIntTargetPort == 0 {
+		varIntTargetPort = varIntPort
+	}
+
 	t := template.Must(template.New("deploymentTemplate").Parse(text))
 	err = t.Execute(out, Deployment{
 		Name:            varStringName,
@@ -90,6 +95,7 @@ func deploymentCommand(_ *cobra.Command, _ []string) error {
 		Replicas:        varIntReplicas,
 		Revisions:       varIntRevisions,
 		Port:            varIntPort,
+		TargetPort:      varIntTargetPort,
 		NodePort:        nodePort,
 		UseNodePort:     nodePort > 0,
 		RequestCpu:      varIntRequestCpu,