Kubernetes集群kubectl部署应用测试

环境：已安装完成Kubernetes
master节点192.168.1.10/centos7
node节点 192.168.1.11/centos7

1.创建部署deployment

image镜像来自docker

[root@master ~]# kubectl create deployment test-nginx --image=nginx
deployment.apps/test-nginx created

2.查询验证deployment

查看deployment列表

[root@master ~]# kubectl get deployment
NAME         READY   UP-TO-DATE   AVAILABLE   AGE
test-nginx   0/1     1            0           31s

查看pod运行列表
[root@master ~]# kubectl get pods
NAME                          READY   STATUS    RESTARTS   AGE
test-nginx-64759dd789-vw48m   1/1     Running   0          119s

3.发布服务

暴露80端口方式发布服务

[root@master ~]# kubectl expose deployment test-nginx --port=80 --type=NodePort
service/test-nginx exposed

或者

[root@master ~]# kubectl create service nodeport test-nginx --tcp 80
service/test-nginx created

查询端口，此处test-nginx服务暴露为30627

4.访问测试

通过master节点访问

通过node节点访问

5.pod容器伸缩
通过kubectl scale调整容器副本数量，–replicas参数实现增加或减少集群副本数量

[root@master ~]# kubectl scale deployment test-nginx --replicas=5
deployment.extensions/test-nginx scaled

再次查询pod时test-nginx副本已经增加到5个

6.删除部署和服务

[root@master ~]# kubectl delete services test-nginx
service "test-nginx" deleted
[root@master ~]# kubectl delete deployment test-nginx
deployment.extensions "test-nginx" deleted

或者

[root@master ~]# kubectl delete deployments/test-nginx services/test-nginx
deployment.extensions "test-nginx" deleted
service "test-nginx" deleted