k8s 通过脚本部署tomcat

使用kubectl create -f tomcat-deployment.yml部署tomcat到k8s中。

tomcat-deployment.yml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: tomcat-deploy
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: tomcat-cluster
    spec:
      containers:
      - name: tomcat-cluster
        image: tomcat:latest
        ports:
        - containerPort: 8080

查看节点信息

kubectl get node -o wide

NAME     STATUS   ROLES    AGE   VERSION   INTERNAL-IP       EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION          CONTAINER-RUNTIME
master   Ready    master   34h   v1.14.1   192.168.121.150   <none>        CentOS Linux 7 (Core)   3.10.0-862.el7.x86_64   docker://18.9.5
node1    Ready    <none>   24h   v1.14.1   192.168.121.151   <none>        CentOS Linux 7 (Core)   3.10.0-862.el7.x86_64   docker://18.9.5
node2    Ready    <none>   24h   v1.14.1   192.168.121.152   <none>        CentOS Linux 7 (Core)   3.10.0-862.el7.x86_64   docker://18.9.5

查看pod信息

kubectl get pod -o wide

NAME                             READY   STATUS    RESTARTS   AGE     IP           NODE    NOMINATED NODE   READINESS GATES
tomcat-deploy-5fd4fc7ddb-8pdlc   1/1     Running   0          6m17s   10.244.1.5   node1   <none>           <none>
tomcat-deploy-5fd4fc7ddb-nrs5v   1/1     Running   0          6m17s   10.244.2.4   node2   <none>           <none>

查看特定pod信息

kubectl describe pod tomcat-deploy-5fd4fc7ddb-8pdlc

查看特定pod日志

kubectl logs tomcat-deploy-5fd4fc7ddb-8pdlc