k8s v1.14集群验证

验证集群功能

检查节点状态

# kubectl get nodes
NAME            STATUS   ROLES    AGE     VERSION
172.21.16.204   Ready    <none>   5h50m   v1.14.6
172.21.16.240   Ready    <none>   5h48m   v1.14.6
172.21.16.87    Ready    <none>   5h45m   v1.14.6

都为 Ready 时正常。

创建测试文件

# cat nginx-ds.yml 
apiVersion: v1
kind: Service
metadata:
  name: nginx-ds
  labels:
    app: nginx-ds
spec:
  type: NodePort
  selector:
    app: nginx-ds
  ports:
  - name: http
    port: 80
    targetPort: 80
---
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  name: nginx-ds
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
spec:
  template:
    metadata:
      labels:
        app: nginx-ds
    spec:
      containers:
      - name: my-nginx
        image: nginx:1.7.9
        ports:
        - containerPort: 80

# kubectl create -f nginx-ds.yml

检查各节点的 Pod IP 连通性

# kubectl get pods  -o wide|grep nginx-ds
nginx-ds-9fb46   1/1     Running   0          5h2m   172.30.232.2   172.21.16.204   <none>           <none>
nginx-ds-bgfzt   1/1     Running   0          5h2m   172.30.128.2   172.21.16.87    <none>           <none>
nginx-ds-t22wj   1/1     Running   0          5h2m   172.30.176.2   172.21.16.240   <none>           <none>

检查服务 IP 和端口可达性

1 2	# kubectl get svc \|grep nginx-ds nginx-ds NodePort 10.254.232.104 <none> 80:30349/TCP 5h2m

在浏览器在30349进行访问可以看到neinx的欢迎界面