使用 Shell Script 自動建立密鑰

1. 遵循 建立授信設定檔 的步驟。 在設定檔的 條件 中，請務必指定下列存取權。

   • 當 名稱空間 等於 kube-system 時容許存取
   • Satellite 服務角色- Satellite Link 管理者、讀者
   • Kubernetes Service 角色-管理員、編輯者
   • 計費服務角色-讀者、操作員

2. 將下列 Script 儲存至稱為 generate-secret.sh 的檔案。

   IBMCLOUD_AUTHTYPE=
   SECRET=
   error() {
       if [[ $? != 0 ]]; then
           echo "$1"; exit 1
       fi
   }
   #validate_arguments validates the arguments provided to the script
   validate_arguments() {
       if [[ "$#" -eq 1 ]]; then
       if [[ "$1" == "-h" ]] || [[ "$1" == "--help" ]]; then
           usage; exit 1
       fi
       fi
           #number of arguments provided to the script must be 2
       if [[ "$#" -ne 2 ]]; then
           echo "Invalid number of arguments provided"
           usage; exit 1
       fi
       #1st argument must be 'iam' or 'pod-identity'
       if [[ "$1" != "iam" ]] && [[ "$1" != "pod-identity" ]]; then
           echo "Provide a valid auth-type"
           usage; exit 1
       fi
       IBMCLOUD_AUTHTYPE=$1
       SECRET=$2
   }
   #usage - prints the usage for execution of script
   usage() {
       echo "USAGE:
       bash generate-secret.sh <auth-type> <apikey/profile-id>
       auth-type: auth-type should be either iam or pod-identity. Provide iam to use api
   key, pod-identity to use trusted profile"
   }
   #main
   main() {
       validate_arguments "$@"
       auth_type="IBMCLOUD_AUTHTYPE=$IBMCLOUD_AUTHTYPE"
       secret=
       if [[ "$IBMCLOUD_AUTHTYPE" == "iam" ]]; then
           secret="IBMCLOUD_APIKEY=$SECRET"
       else
           secret="IBMCLOUD_PROFILEID=$SECRET"
       fi
       encodedValue=$(echo -e "$auth_type\n$secret" | base64)
       #on certain os, base64 encoding introduces newline, removing the same here.
       encodedValue=${encodedValue//$'\n'/}
       #fetch the agent pod name
       agentPodName=$(kubectl get pods -n kube-system | grep ibm-storage-metrics-agent | awk '{print $1}')
       error "$(date +"%b %d %G %H:%M:%S"):  Unable to fetch ODF agent pod."
       if [[ "$agentPodName" == "" ]]; then
           echo "$(date +"%b %d %G %H:%M:%S"):  Error - ibm-storage-metrics-agent pod
   not found"
           exit 1
       fi
       echo "apiVersion: v1
   data:
   ibm-credentials.env: $encodedValue
   kind: Secret
   metadata:
   name: ibm-cloud-credentials
   namespace: kube-system
   type: Opaque" > ibm-cloud-credentials.yaml
       #create the k8s secret
       kubectl apply -f ibm-cloud-credentials.yaml &> /dev/null
       error "$(date +"%b %d %G %H:%M:%S"):  Error creating ibm-cloud-credentials
   secret."
       echo "$(date +"%b %d %G %H:%M:%S"):  Created ibm-cloud-credentials secret"
       #restart the ODF agent pod
       echo "$(date +"%b %d %G %H:%M:%S"):  Restarting $agentPodName pod"
       kubectl delete pod "$agentPodName" -n kube-system &> /dev/null
       error "$(date +"%b %d %G %H:%M:%S"):  Error restarting $agentPodName pod in
   kube-system namespace."
       agentPodStatus=
       for i in {1..12}
       do
           sleep 5
           agentPodStatus=$(kubectl get pods -n kube-system | grep ibm-storage-metrics-agent | awk '{print $3}')
           if [[ "$agentPodStatus" == "Running" ]]; then
               echo "$(date +"%b %d %G %H:%M:%S"):  $i: ODF billing agent is now using
   ibm-cloud-credentials secret"
               rm ibm-cloud-credentials.yaml
               error "Error deleting ibm-cloud-credentials.yaml."
               exit 0
           fi
       done
       error "$(date +"%b %d %G %H:%M:%S"):  Error - ibm-storage-metrics-agent is in
   $agentPodStatus state"
   }
   main "$@"
   

3. 執行 generate-secret.sh Script，並指定 iam 或 pod-identity 作為 IBMCLOUD_AUTHTYPE 以及 PROFILE-ID 或 API-KEY。

   搭配使用 pod-identity 與您信任的設定檔 ID 來執行 generate-secret.sh 的指令範例。

   sh ./generate-secret.sh pod-identity PROFILE-ID
   

   搭配使用 iam 與 API 金鑰來執行 generate-secret.sh 的範例指令。

   sh ./generate-secret.sh iam API-KEY
   

4. 重新啟動代理程式 Pod。

   oc delete pod <ibm-storage-metrics-agent> -n kube-sysem
   

5. 透過在輸出中尋找 secret type，取得代理程式 Pod 的日誌以驗證驅動程式是否使用正確的認證。 例如，"secret-used":"ibm-cloud-credentials","type":"pod-identity"。

   oc logs ibm-storage-metrics-agent-xxx -c storage-secret-sidecar -n kube-system