|NO.Z.00037|——————————|CloudNative|——|Kubernetes&Java项目.V03|——|部署Java项目|

一、控制器部署镜像Deployment

### --- 创建一个Pod之生成yaml文件

[root@k8s-master1 ~]# kubectl create deployment javademo1 --image=registry.cn-hangzhou.aliyuncs.com/docker-yanqi/java-project-01:1.0.0 --dry-run -o yaml > javademo1.yaml
[root@k8s-master1 ~]# ls
javademo1.yaml

### --- 创建Javademo1的pod

[root@k8s-master1 ~]# kubectl apply -f javademo1.yaml 
deployment.apps/javademo1 created

[root@k8s-master1 ~]# kubectl get pods
NAME                         READY   STATUS    RESTARTS   AGE
javademo1-659c9d6665-9r2v4   1/1     Running   0          43s

[root@k8s-master1 ~]# kubectl get pods -o wide
NAME                         READY   STATUS    RESTARTS   AGE   IP           NODE        NOMINATED NODE   READINESS GATES
javademo1-659c9d6665-9r2v4   1/1     Running   0          61s   10.244.2.3   k8s-node1   <none>           <none>

### --- 扩容添加几个副本

[root@k8s-master1 ~]# kubectl scale deployment javademo1 --replicas=3
deployment.apps/javademo1 scaled

[root@k8s-master1 ~]# kubectl get pods -o wide
NAME                         READY   STATUS    RESTARTS   AGE     IP           NODE        NOMINATED NODE   READINESS GATES
javademo1-659c9d6665-9r2v4   1/1     Running   0          4m40s   10.244.2.3   k8s-node1   <none>           <none>
javademo1-659c9d6665-cqwnm   1/1     Running   0          31s     10.244.2.4   k8s-node1   <none>           <none>
javademo1-659c9d6665-snkbm   1/1     Running   0          31s     10.244.2.5   k8s-node1   <none>           <none>

二、对外暴露应用service Ingress 

### --- 对外暴露端口

[root@k8s-master1 ~]# kubectl expose deployment javademo1 --port=8111 --target-port=8111 --type=NodePort
service/javademo1 exposed
[root@k8s-master1 ~]# kubectl get svc
NAME         TYPE        CLUSTER-IP    EXTERNAL-IP   PORT(S)          AGE
javademo1    NodePort    10.1.183.81   <none>        8111:30938/TCP   24s

### --- 对外暴露的端口是30938，通过任何一个节点+对外暴露端口都可以输出内容

~~~     http://10.10.10.11:30938/user   输出：hello
~~~     http://10.10.10.12:30938/user   输出：hello
~~~     http://10.10.10.13:30938/user   输出：hello
~~~     http://10.10.10.15:30938/user   输出：hello    # vip输出

---

 

 

 

 

 

 

 

 

 

---

Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

---