3.2. 从二进制工件构建和部署 Java 应用程序

流程

1. 运行以下命令并提供您的凭证来登录到 OpenShift 实例：

   $ oc login

2. 创建一个新项目

   $ oc new-project jdk-bin-demo

3. 创建新的二进制构建，并指定镜像流和应用程序的名称：

   $ oc new-build --binary=true \
   --name=jdk-us-app \
   --image-stream=java:11
   --> Found image c1f5b31 (2 months old) in image stream "openshift/java:11" under tag "latest" for "java:11"
   
       Java Applications
       -----------------
       Platform for building and running plain Java applications (fat-jar and flat classpath)
   
   --> Creating resources with label build=jdk-us-app ...
       imagestream "jdk-us-app" created
       buildconfig "jdk-us-app" created
   --> Success
   Application is not exposed. You can expose services to the outside world by executing one or more of the commands below:
    'oc expose svc/jdk-us-app'

4. 启动二进制构建。

   指示 oc 可执行文件使用您在上一步中创建的二进制构建主目录，作为包含 OpenShift 构建的二进制输入的目录：

   $ oc start-build jdk-us-app --from-dir=./ocp --follow
   Uploading directory "ocp" as binary input for the build ...
   build "jdk-us-app-1" started
   Receiving source from STDIN as archive ...
   ==================================================================
   Starting S2I Java Build .....
   S2I source build with plain binaries detected
   Copying binaries from /tmp/src/deployments to /deployments ...
   ... done
   Pushing image 172.30.197.203:5000/jdk-bin-demo/jdk-us-app:latest ...
   Pushed 0/6 layers, 2% complete
   Pushed 1/6 layers, 24% complete
   Pushed 2/6 layers, 36% complete
   Pushed 3/6 layers, 54% complete
   Pushed 4/6 layers, 71% complete
   Pushed 5/6 layers, 95% complete
   Pushed 6/6 layers, 100% complete
   Push successful

5. 根据构建创建新的 OpenShift 应用程序：

   $ oc new-app jdk-us-app
   --> Found image 66f4e0b (About a minute old) in image stream "jdk-bin-demo/jdk-us-app" under tag "latest" for "jdk-us-app"
   
       jdk-bin-demo/jdk-us-app-1:c1dbfb7a
       ----------------------------------
       Platform for building and running plain Java applications (fat-jar and flat classpath)
   
       Tags: builder, java
   
       * This image will be deployed in deployment config "jdk-us-app"
       * Ports 8080/tcp, 8443/tcp, 8778/tcp will be load balanced by service "jdk-us-app"
         * Other containers can access this service through the hostname "jdk-us-app"
   
   --> Creating resources ...
       deploymentconfig "jdk-us-app" created
       service "jdk-us-app" created
   --> Success
       Run 'oc status' to view your app.

6. 将服务作为路由公开。

   $ oc expose svc/jdk-us-app
   route "jdk-us-app" exposed

7. 获取路由：

   $ oc get route

8. 使用 URL （上一命令输出中的 HOST/PORT 字段的值）访问浏览器中的应用程序。