Fix: PodSecurity Admission: Display duplicate warnings only once

Signed-off-by: Parthvi Vala <pvala@redhat.com>

pkg/kclient/kclient.go

@@ -2,6 +2,8 @@ package kclient
 
 import (
 	"fmt"
+	"github.com/redhat-developer/odo/pkg/log"
+	"k8s.io/kubectl/pkg/util/term"
 	"strings"
 
 	"k8s.io/cli-runtime/pkg/genericclioptions"
@@ -127,6 +129,14 @@ func NewForConfig(config clientcmd.ClientConfig) (client *Client, err error) {
 	client.KubeClientConfig.QPS = defaultQPS
 	client.KubeClientConfig.Burst = defaultBurst
 
+	// This warning handler ensures that warnings are not duplicated
+	client.KubeClientConfig.WarningHandler = rest.NewWarningWriter(log.GetStderr(), rest.WarningWriterOptions{
+		// only print a given warning the first time we receive it
+		Deduplicate: true,
+		// highlight the output with color when the output supports it
+		Color: term.AllowsColorOutput(log.GetStderr()),
+	})
+
 	client.KubeClient, err = kubernetes.NewForConfig(client.KubeClientConfig)
 	if err != nil {
 		return nil, err