为何在创建 VPC 集群时看到 SyncLoadBalancerFailed 错误?
当集群中的网络负载均衡器（NLB）同步失败时，请排查相关问题。
在我的 VPC 集群上设置负载平衡时，我看到了与下面示例类似的错误信息。
Warning CreatingCloudLoadBalancerFailed 55s ibm-cloud-provider Error on cloud load balancer kube-<CLUSTERID>-<SERVICE_UUID> for service <NAMESPACE>/<SERVICE_NAME> with UID <SERVICE_UUID>: Failed ensuring LoadBalancer: FindLoadBalancer failed: FindLoadBalancer failed: An error occurred while performing the 'authenticate' step: 400 Bad Request [{"incidentID":"XXX","code":"XXX","description":"Error message from IAM: '401 Unauthorized. Transaction-Id: XXX Details: {\"errorCode\":\"BXNIM0430E\",\"errorMessage\":\"User login from given IP address is not permitted.\",\"errorDetails\":\"The user has configured IP address restriction for login. The given IP address 'XXXX' is not contained in the list of allowed IP addresses.\",\"context\":...,"type":"Authentication"}]
Warning SyncLoadBalancerFailed 55s service-controller Error syncing load balancer: failed to ensure load balancer: Error on cloud load balancer kube-<CLUSTERID>-<SERVICE_UUID> for service <NAMESPACE>/<SERVICE_NAME> with UID <SERVICE_UUID>:: Failed ensuring LoadBalancer: FindLoadBalancer failed: FindLoadBalancer failed: An error occurred while performing the 'authenticate' step: 400 Bad Request [{"incidentID":"XXX","code":"XXX","description":"Error message from IAM: '401 Unauthorized. Transaction-Id: XXX Details: {\"errorCode\":\"BXNIM0430E\",\"errorMessage\":\"User login from given IP address is not permitted.\",\"errorDetails\":\"The user has configured IP address restriction for login. The given IP address 'XXX' is not contained in the list of allowed IP addresses.\",\"context\":...,"type":"Authentication"}]
当 IAM 允许列表不允许进行必要的通信来控制平面 IP 时，会发生此错误。