kubernetes部署nginx/tomcat

kubernetes集群已经部署好了，需要的话可以参考之前的文章https://www.cnblogs.com/winter1519/p/10015420.html

[root@master tomcat]# kubectl get nodes
NAME      STATUS    AGE
node1     Ready     10d
node2     Ready     10d
部署nginx

需要三个配置文件：

[root@master nginx]# vim nginx-pod.yaml
apiVersion: v1
kind: Pod
metadata:
  name: nginx-pod
  labels:
    name: nginx-pod
spec:
  containers:
  - name: nginx
    image: nginx
    ports:
    - containerPort: 80

[root@master nginx]# vim nginx-rc.yaml
apiVersion: v1
kind: ReplicationController
metadata:
  name: nginx-rc
spec:
  replicas: 2
  selector:
    name: nginx-pod
  template:
    metadata:
      labels:
        name: nginx-pod
    spec:
       containers:
       - name: nginx-pod
         image: nginx
         ports:
         - containerPort: 80

[root@master nginx]# vim nginx-pod.yaml
apiVersion: v1
kind: Pod
metadata:
  name: nginx-pod
  labels:
    name: nginx-pod
spec:
  containers:
  - name: nginx
    image: nginx
    ports:
    - containerPort: 80

[root@master nginx]#kubectl create -f nginx-pod.yaml
[root@master nginx]#kubectl describe pod nginx
[root@master nginx]#kubectl create -f   nginx-rc.yaml
[root@master nginx]#kubectl create -f   nginx-service.yaml
[root@master nginx]# kubectl get pods -o wide
NAME                        READY     STATUS    RESTARTS   AGE       IP            NODE
nginx-pod                   1/1       Running   1          1d        10.255.95.2   node2
nginx-rc-351xd              1/1       Running   1          1d        10.255.1.3    node1
[root@master nginx]# kubectl get svc
NAME            CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
kubernetes      10.254.0.1       <none>        443/TCP          10d
nginx-service   10.254.208.231   <nodes>       80:30011/TCP     1d
[root@master nginx]# kubectl get rc
NAME       DESIRED   CURRENT   READY     AGE
nginx-rc   2         2         2         1d
访问nginx：
http://192.168.91.26:30011

http://192.168.91.27:30011

部署tomcat

[root@master tomcat]# vim tomcat-deployment.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: my-tomcat
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: my-tomcat
    spec:
      containers:
      - name: my-tomcat
        image: docker.io/tomcat
        ports:
        - containerPort: 80

[root@master tomcat]# vim tomcat-service.yaml
apiVersion: v1
kind: Service
metadata:
  name: my-tomcat
spec:
  type: NodePort
  ports:
  - port: 8080
    targetPort: 8080
    nodePort: 31111
  selector:
    app: my-tomcat

[root@master tomcat]# kubectl create -f tomcat-deployment.yaml
[root@master tomcat]# kubectl create -f tomcat-service.yaml

[root@master tomcat]# kubectl get deployment
NAME        DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
my-tomcat   2         2         2            2           59m
[root@master tomcat]# kubectl get svc
NAME            CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
kubernetes      10.254.0.1       <none>        443/TCP          10d
my-tomcat       10.254.110.240   <nodes>       8080:31111/TCP   59m
nginx-service   10.254.208.231   <nodes>       80:30011/TCP     1d
[root@master tomcat]# kubectl get pods -o wide
NAME                        READY     STATUS    RESTARTS   AGE       IP            NODE
my-tomcat-464109745-ctmdf   1/1       Running   0          1h        10.255.1.5    node1
my-tomcat-464109745-wmxpz   1/1       Running   0          1h        10.255.95.4   node2
nginx-pod                   1/1       Running   1          1d        10.255.95.2   node2
nginx-rc-351xd              1/1       Running   1          1d        10.255.1.3    node1
访问tomcat
http://192.168.91.26:31111

http://192.168.91.27:31111