kubernetes集群-04测试kubernetes集群

• 验证Pod工作
• 验证Pod网络通信
• 验证DNS解析

在Kubernetes集群中创建一个pod，验证是否正常运行：

[root@k8s-master ~]# kubectl create deployment nginx --image=nginx
[root@k8s-master ~]# kubectl get pod
NAME                    READY   STATUS              RESTARTS   AGE
nginx-f89759699-5d59n   0/1     ContainerCreating   0          12s
[root@k8s-master ~]# kubectl get pod
NAME                    READY   STATUS              RESTARTS   AGE
nginx-f89759699-5d59n   0/1     ContainerCreating   0          12s
[root@k8s-master ~]# kubectl get pod -w
NAME                    READY   STATUS    RESTARTS   AGE
nginx-f89759699-5d59n   1/1     Running   0          27s

测试通过nodeIP进行访问

[root@k8s-master ~]# kubectl expose deployment nginx --port=80 --type=NodePort
service/nginx exposed
[root@k8s-master ~]# kubectl get pod -w
NAME                    READY   STATUS    RESTARTS   AGE
nginx-f89759699-5d59n   1/1     Running   0          41s
[root@k8s-master ~]# kubectl get pod,svc
NAME                        READY   STATUS    RESTARTS   AGE
pod/nginx-f89759699-5d59n   1/1     Running   0          54s

NAME                 TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
service/kubernetes   ClusterIP   10.96.0.1        <none>        443/TCP        30m
service/nginx        NodePort    10.111.131.154   <none>        80:32651/TCP   15s

使用node1或者node2IP加上上面32651端口进行访问
注意，使用nodeIP访问，不要用masterIP
http://172.16.10.12:32651/

http://172.16.10.13:32651/