9.3. 使用 Knative Client 的基本工作流

流程

1. 通过一个镜像，在 default 命名空间内创建一个服务。

   $ kn service create hello --image gcr.io/knative-samples/helloworld-go --env TARGET=Knative
   Creating service 'hello' in namespace 'default':
   
     0.085s The Route is still working to reflect the latest desired specification.
     0.101s Configuration "hello" is waiting for a Revision to become ready.
    11.590s ...
    11.650s Ingress has not yet been reconciled.
    11.726s Ready to serve.
   
   Service 'hello' created with latest revision 'hello-gsdks-1' and URL:
   http://hello.default.apps-crc.testing

2. 列出该服务。

   $ kn service list
   NAME    URL                                     LATEST          AGE     CONDITIONS   READY   REASON
   hello   http://hello.default.apps-crc.testing   hello-gsdks-1   8m35s   3 OK / 3     True

3. 使用 curl 服务端点命令检查该服务是否正在工作：

   $ curl http://hello.default.apps-crc.testing
   
   Hello Knative!

4. 更新该服务。

   $ kn service update hello --env TARGET=Kn
   Updating Service 'hello' in namespace 'default':
   
    10.136s Traffic is not yet migrated to the latest revision.
    10.175s Ingress has not yet been reconciled.
    10.348s Ready to serve.
   
   Service 'hello' updated with latest revision 'hello-dghll-2' and URL:
   http://hello.default.apps-crc.testing

   现在，该服务的环境变量 TARGET 设置为 Kn。

5. 描述该服务。

   $ kn service describe hello
   Name:       hello
   Namespace:  default
   Age:        13m
   URL:        http://hello.default.apps-crc.testing
   Address:    http://hello.default.svc.cluster.local
   
   Revisions:
     100%  @latest (hello-dghll-2) [2] (1m)
           Image:  gcr.io/knative-samples/helloworld-go (pinned to 5ea96b)
   
   Conditions:
     OK TYPE                   AGE REASON
     ++ Ready                   1m
     ++ ConfigurationsReady     1m
     ++ RoutesReady             1m

6. 删除该服务。

   $ kn service delete hello
   Service 'hello' successfully deleted in namespace 'default'.

   然后您可使用 list 命令来验证 hello 服务是否已被删除。

   $ kn service list hello
   No services found.