4.7. 连接到数据库

先决条件

• 有访问 OpenShift Container Platform 集群的权限。
• 已安装 OpenShift CLI（oc）。
• 您已部署了一个镜像。

流程

• 要连接到数据库，请输入以下命令：

  $ oc new-app quay.io/centos7/mongodb-36-centos7:master --name mongodb-nationalparks -e MONGODB_USER=mongodb -e MONGODB_PASSWORD=mongodb -e MONGODB_DATABASE=mongodb -e MONGODB_ADMIN_PASSWORD=mongodb -l 'app.kubernetes.io/part-of=national-parks-app,app.kubernetes.io/name=mongodb'

  输出示例

  --> Found container image dc18f52 (3 years old) from quay.io for "quay.io/centos7/mongodb-36-centos7:master"
  
      MongoDB 3.6
      -----------
      MongoDB (from humongous) is a free and open-source cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with schemas. This container image contains programs to run mongod server.
  
      Tags: database, mongodb, rh-mongodb36
  
      * An image stream tag will be created as "mongodb-nationalparks:master" that will track this image
  
  --> Creating resources with label app.kubernetes.io/name=mongodb,app.kubernetes.io/part-of=national-parks-app ...
      imagestream.image.openshift.io "mongodb-nationalparks" created
      deployment.apps "mongodb-nationalparks" created
      service "mongodb-nationalparks" created
  --> Success