1,新建一个yaml文件。

apiVersion: v1kind: Podmetadata:  name: busybox  namespace: defaultspec:  containers:  - image: busybox    command:      - sleep      - "3600"    imagePullPolicy: IfNotPresent    name: busybox  restartPolicy: Always

 

2,用kubectl apply -f命令生成这个pod

kubectl  apply -f dns-test-busybox.yaml

 

3,确认pod启动正常

kubectl get pods busybox

 

4,运行kubectl exec -it命令查看测试结果.

kubectl exec -ti busybox -- nslookup kubernetes.default

大约结果如下:

Server: 10.96.0.10

Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local

Name: kubernetes.default

Address 1: 10.96.0.1 kubernetes.default.svc.cluster.local