k8s 部署 tomcat

创建namespace

tomcat-namespace.yaml

apiVersion: v1
kind: Namespace
metadata:
name: ns-tomcat

创建Deployment

tomcat-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcat-deployment
namespace: ns-tomcat
spec:
replicas: 1
selector:
matchLabels:
app: tomcat
template:
metadata:
labels:
app: tomcat
spec:
containers:
- name: tomcat
image: swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/tomcat:8.5-jdk8
ports:
- name: http
containerPort: 8080

创建Service

tomcat-service.yaml

apiVersion: v1
kind: Service
metadata:
name: tomcat-service
namespace: ns-tomcat
spec:
selector:
app: tomcat
ports:
- name: http
targetPort: 8080
port: 8080
nodePort: 30080
type: NodePort

启动

kubectl apply -f tomcat-namespace.yaml
kubectl apply -f .

查看

kubectl get pod -n ns-tomcat
kubectl get svc -n ns-tomcat

进入容器

kubectl exec -it tomcat-deployment-7f56bbf454-5wf7h -n ns-tomcat -- /bin/sh

tomcat-deployment-7f56bbf454-5wf7h pod的名称

复制目录

cp -R /usr/local/tomcat/webapps.dist/* /usr/local/tomcat/webapps

访问

http://10.0.2.12:30080/

10.0.2.12为宿主机ip，30080为tomcat Service的port。