Added support for different namespaces

Now we can deploy application in different namespaces using the "--namespace=<value>" flag with kompose up and kompose down. The --namepace flag will deploy the application in that particular "namespace" if exist."

cmd/down.go

@@ -28,6 +28,7 @@ import (
 var (
 	DownReplicas  int
 	DownEmptyVols bool
+	DownNamespace string
 	DownOpt       kobject.ConvertOptions
 )
 
@@ -43,6 +44,7 @@ var downCmd = &cobra.Command{
 			InputFiles: GlobalFiles,
 			Provider:   strings.ToLower(GlobalProvider),
 			EmptyVols:  DownEmptyVols,
+			Namespace:  DownNamespace,
 		}
 
 		// Validate before doing anything else.
@@ -56,5 +58,6 @@ var downCmd = &cobra.Command{
 func init() {
 	downCmd.Flags().BoolVar(&DownEmptyVols, "emptyvols", false, "Use Empty Volumes. Do not generate PVCs")
 	downCmd.Flags().IntVar(&DownReplicas, "replicas", 1, "Specify the number of repliaces in the generate resource spec")
+	downCmd.Flags().StringVar(&DownNamespace, "namespace", "", " Specify Namespace to deploy your application")
 	RootCmd.AddCommand(downCmd)
 }

cmd/up.go

@@ -28,6 +28,7 @@ import (
 var (
 	UpReplicas  int
 	UpEmptyVols bool
+	UpNamespace string
 	UpOpt       kobject.ConvertOptions
 )
 
@@ -43,6 +44,7 @@ var upCmd = &cobra.Command{
 			InputFiles: GlobalFiles,
 			Provider:   strings.ToLower(GlobalProvider),
 			EmptyVols:  UpEmptyVols,
+			Namespace:  UpNamespace,
 		}
 
 		// Validate before doing anything else.
@@ -56,5 +58,6 @@ var upCmd = &cobra.Command{
 func init() {
 	upCmd.Flags().BoolVar(&UpEmptyVols, "emptyvols", false, "Use Empty Volumes. Do not generate PVCs")
 	upCmd.Flags().IntVar(&UpReplicas, "replicas", 1, "Specify the number of repliaces in the generate resource spec")
+	upCmd.Flags().StringVar(&UpNamespace, "namespace", "", " Specify Namespace to deploy your application")
 	RootCmd.AddCommand(upCmd)
 }

pkg/kobject/kobject.go

@@ -47,6 +47,7 @@ type ConvertOptions struct {
 	InputFiles                  []string
 	OutFile                     string
 	Provider                    string
+	Namespace                   string
 	IsDeploymentFlag            bool
 	IsDaemonSetFlag             bool
 	IsReplicationControllerFlag bool

pkg/transformer/kubernetes/kubernetes.go

@@ -640,10 +640,15 @@ func (k *Kubernetes) Deploy(komposeObject kobject.KomposeObject, opt kobject.Con
 	fmt.Println("We are going to create Kubernetes Deployments, Services" + pvcStr + "for your Dockerized application. \n" +
 		"If you need different kind of resources, use the 'kompose convert' and 'kubectl create -f' commands instead. \n")
 
-	client, namespace, err := k.GetKubernetesClient()
+	client, ns, err := k.GetKubernetesClient()
+	namespace := opt.Namespace
+	if len(namespace) == 0 {
+		namespace = ns
+	}
 	if err != nil {
 		return err
 	}
+	log.Infof("Deploying application in %q namespace\n", namespace)
 
 	for _, v := range objects {
 		switch t := v.(type) {
@@ -699,10 +704,16 @@ func (k *Kubernetes) Undeploy(komposeObject kobject.KomposeObject, opt kobject.C
 		return errors.Wrap(err, "k.Transform failed")
 	}
 
-	client, namespace, err := k.GetKubernetesClient()
+	client, ns, err := k.GetKubernetesClient()
+	namespace := opt.Namespace
+	if len(namespace) == 0 {
+		namespace = ns
+	}
+
 	if err != nil {
 		return err
 	}
+	log.Infof("Deleting application from %q namespace\n", namespace)
 
 	for _, v := range objects {
 		label := labels.SelectorFromSet(labels.Set(map[string]string{transformer.Selector: v.(meta.Object).GetName()}))