8.11. 为 AWS 上的 Red Hat OpenShift 验证 cert-manager Operator

流程

1. 创建一个 CredentialsRequest 资源 YAML 文件，如 sample-credential-request.yaml，如下所示：

   apiVersion: cloudcredential.openshift.io/v1
   kind: CredentialsRequest
   metadata:
     name: cert-manager
     namespace: openshift-cloud-credential-operator
   spec:
     providerSpec:
       apiVersion: cloudcredential.openshift.io/v1
       kind: AWSProviderSpec
       statementEntries:
       - action:
         - "route53:GetChange"
         effect: Allow
         resource: "arn:aws:route53:::change/*"
       - action:
         - "route53:ChangeResourceRecordSets"
         - "route53:ListResourceRecordSets"
         effect: Allow
         resource: "arn:aws:route53:::hostedzone/*"
       - action:
         - "route53:ListHostedZonesByName"
         effect: Allow
         resource: "*"
     secretRef:
       name: aws-creds
       namespace: cert-manager
     serviceAccountNames:
     - cert-manager

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2. 运行以下命令来创建 CredentialsRequest 资源：

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

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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":"aws-creds"}]}}}'

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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

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   输出示例

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

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2. 运行以下命令，验证 cert-manager 控制器 pod 是否使用挂载在 mountPath 中指定的路径下的 AWS 凭证卷更新：

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

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   输出示例

   ...
   spec:
     containers:
     - args:
       ...
       - mountPath: /.aws
         name: cloud-credentials
     ...
     volumes:
     ...
     - name: cloud-credentials
       secret:
         ...
         secretName: aws-creds

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