8.13. 在 GCP 上为 Red Hat OpenShift 验证 cert-manager Operator

流程

1. 通过应用以下 yaml 创建 CredentialsRequest 资源 YAML 文件，如 sample-credential-request.yaml ：

   apiVersion: cloudcredential.openshift.io/v1
   kind: CredentialsRequest
   metadata:
     name: cert-manager
     namespace: openshift-cloud-credential-operator
   spec:
     providerSpec:
       apiVersion: cloudcredential.openshift.io/v1
       kind: GCPProviderSpec
       predefinedRoles:
       - roles/dns.admin
     secretRef:
       name: gcp-credentials
       namespace: cert-manager
     serviceAccountNames:
     - cert-manager

2. 运行以下命令来创建 CredentialsRequest 资源：

   $ oc create -f sample-credential-request.yaml

3. 运行以下命令，为 Red Hat OpenShift 更新 cert-manager Operator 的订阅对象：

   $ oc -n cert-manager-operator patch subscription openshift-cert-manager-operator --type=merge -p '{"spec":{"config":{"env":[{"name":"CLOUD_CREDENTIALS_SECRET_NAME","value":"gcp-credentials"}]}}}'

验证

1. 运行以下命令，获取重新部署的 cert-manager 控制器 pod 的名称：

   $ oc get pods -l app.kubernetes.io/name=cert-manager -n cert-manager

   输出示例

   NAME                                       READY   STATUS    RESTARTS   AGE
   cert-manager-bd7fbb9fc-wvbbt               1/1     Running   0          15m39s

2. 运行以下命令，验证 cert-manager 控制器 pod 是否已使用挂载到 mountPath 中指定的路径下的 GCP 工作负载身份凭证卷更新：

   $ oc get -n cert-manager pod/<cert-manager_controller_pod_name> -o yaml

   输出示例

   spec:
     containers:
     - args:
       ...
       volumeMounts:
       ...
       - mountPath: /.config/gcloud
         name: cloud-credentials
       ....
     volumes:
     ...
     - name: cloud-credentials
       secret:
         ...
         items:
         - key: service_account.json
           path: application_default_credentials.json
         secretName: gcp-credentials