drone:
    执行编译：
    mvn clean install -Dmaven.test.skip=true

    构建镜像：
    docker build -t yueming33990/java-demo .
    docker login 172.16.236.205:31600 -u=”maven” -p=”bWxLPxisdc409viRNMtr”
    docker push yueming33990/java-demo

    创建K8S服务 （Deployment）：
    kubectl create deployment java-demo —image=yueming33990/java-demo —dry-run -o yaml > deploy.yaml

    kubectl apply -f deploy.yaml

    暴露应用创建一个service
    kubectl expose deployment java-demo —port=80 —target-port=8080 —type=NodePort -o yaml —dry-run > svc.yaml

    kubectl apply -f svc.yaml