1. 远程端口转发本地使用：
kubectl port-forward pods/onedata-postgre-0 5432:5432 -n onedata-dev
2. pod文件下载
kubectl cp onedata-dev/dolphinscheduler03-5697d8b5c7-sxtdk:apache-dolphinscheduler-incubating-1.3.4-SNAPSHOT.jar apache-dolphinscheduler-incubating-1.3.4-SNAPSHOT.jar -c dolphinscheduler03