启动应用部署

  1. kubectl run nginx-deployment \
  2. --image=hub.yangguoxiang.com/library/myapp:v1.0 \
  3. --port=80 \
  4. --replicas=1

移除应用

  1. kubectl delete deployments nginx-deployment

image.png

删除 pod ，测试副本修复

  1. [root@k8s-master01 ~]# kubectl get pods -o wide
  2. NAME                                READY   STATUS    RESTARTS   AGE   IP           NODE         NOMINATED NODE   READINESS GATES
  3. nginx-deployment-698f8f6494-6ms8p   1/1     Running   0          55s   10.244.2.2   k8s-node02   <none>           <none>
  4. [root@k8s-master01 ~]# kubectl delete pod nginx-deployment-698f8f6494-6ms8p
  5. pod "nginx-deployment-698f8f6494-6ms8p" deleted

修改

  1. [root@k8s-master01 ~]# kubectl scale --replicas=3 deployment/nginx-deployment
  2. deployment.extensions/nginx-deployment scaled

开放负载均衡的统一端口(仅限虚拟机内部网络访问，宿主机访问不到)

  1. kubectl expose deployment nginx-deployment --port=30000 --target-port=80
  3. [root@k8s-master01 ~]# kubectl get svc
  4. NAME               TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)     AGE
  5. kubernetes         ClusterIP   10.96.0.1      <none>        443/TCP     27h
  6. nginx-deployment   ClusterIP   10.110.85.86   <none>        30000/TCP   86s

开放负载均衡的统一端口(宿主机也可访问)

  1. [root@k8s-master01 ~]# kubectl edit svc nginx-deployment
  3. spec:
  4.   type: NodePort
  6. # 将 ClusterIP 修改为 NodePort

image.png

查看端口号

image.png

  1. 1、最简单的启动一个pod的方式：
  2. kubectl run mybusybox --image=busybox
  4. 2、启动多个pod的方式：
  5. kubectl run mybusybox --image=busybox --replicas=5
  7. 3、删除创建的pod：
  8. kubectl delete deployments mybusybox
  10. 4、列出当前所有的pod：
  11. kubectl get pods
  13. ５、查看pod的状态：
  14. kubectl describe pod [PODNAME]
  16. 6、查看集群中存在的各个节点：
  17. kubectl get nodes
  19. 7、创建带有端口映射的pod：
  20. kubectl run mynginx --image=nginx --port=80 --hostport=8000
  22. 8、创建带有终端的pod：
  23. kubectl run -i --tty busybox --image=busybox
  25. 9、删除利用kubeadm启动kubernetes时启动的kube-proxy
  26. kubectl delete daemonset kube-proxy -n kube-system