1.3. 验证 Operator 安装

流程

1. 创建一个新项目

   $ oc new-project hello-world

   Copy to Clipboard Toggle word wrap

2. 根据 hello-openshift 镜像创建一个新的 hello-world 应用程序：

   $ oc new-app -n hello-world --image=docker.io/openshift/hello-openshift

   Copy to Clipboard Toggle word wrap

3. 为 AWS Application Load Balancer (ALB)配置 NodePort 服务以连接：

   $ cat << EOF | oc apply -f -
   apiVersion: v1
   kind: Service
   metadata:
     name: hello-openshift-nodeport
     namespace: hello-world
   spec:
     ports:
       - port: 80
         targetPort: 8080
         protocol: TCP
     type: NodePort
     selector:
       deployment: hello-openshift
   EOF

   Copy to Clipboard Toggle word wrap

4. 为应用程序部署 AWS ALB：

   $ cat << EOF | oc apply -f -
   apiVersion: networking.k8s.io/v1
   kind: Ingress
   metadata:
     name: hello-openshift-alb
     namespace: hello-world
     annotations:
       alb.ingress.kubernetes.io/scheme: internet-facing
   spec:
     ingressClassName: alb
     rules:
       - http:
           paths:
             - path: /
               pathType: Exact
               backend:
                 service:
                   name: hello-openshift-nodeport
                   port:
                     number: 80
   EOF

   Copy to Clipboard Toggle word wrap

5. 测试对应用程序的 AWS ALB 端点的访问：

   注意

   ALB 置备需要几分钟时间。如果您收到一个错误，显示 curl: (6) Could not resolve host，请等待并重试。

   $ ALB_INGRESS=$(oc -n hello-world get ingress hello-openshift-alb \
       -o jsonpath='{.status.loadBalancer.ingress[0].hostname}')
   $ curl "http://${ALB_INGRESS}"

   Copy to Clipboard Toggle word wrap

   输出示例

   Hello OpenShift!

   Copy to Clipboard Toggle word wrap

6. 为应用程序部署 AWS Network Load Balancer (NLB)：

   $ cat << EOF | oc apply -f -
   apiVersion: v1
   kind: Service
   metadata:
     name: hello-openshift-nlb
     namespace: hello-world
     annotations:
       service.beta.kubernetes.io/aws-load-balancer-type: external
       service.beta.kubernetes.io/aws-load-balancer-nlb-target-type: instance
       service.beta.kubernetes.io/aws-load-balancer-scheme: internet-facing
   spec:
     ports:
       - port: 80
         targetPort: 8080
         protocol: TCP
     type: LoadBalancer
     selector:
       deployment: hello-openshift
   EOF

   Copy to Clipboard Toggle word wrap

7. 测试对应用程序的 NLB 端点的访问：

   注意

   NLB 置备需要几分钟时间。如果您收到一个错误，显示 curl: (6) Could not resolve host，请等待并重试。

   $ NLB=$(oc -n hello-world get service hello-openshift-nlb \
     -o jsonpath='{.status.loadBalancer.ingress[0].hostname}')
   $ curl "http://${NLB}"

   Copy to Clipboard Toggle word wrap

   输出示例

   Hello OpenShift!

   Copy to Clipboard Toggle word wrap

8. 现在，您可以删除示例应用程序和 hello-world 命名空间中的所有资源。

   $ oc delete project hello-world

   Copy to Clipboard Toggle word wrap