first commit

admissioncontrollers/introduction/sourcecode/test.go

@@ -0,0 +1,18 @@
+package main 
+
+import (
+	"context"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"fmt"
+)
+
+func test(){
+
+	pods, err := clientSet.CoreV1().Pods("").List(context.TODO(), metav1.ListOptions{})
+
+	if err != nil {
+		panic(err.Error())
+	}
+
+	fmt.Printf("There are %d pods in the cluster\n", len(pods.Items))
+}