FAQ - Container Service for Kubernetes - Alibaba Cloud Documentation Center

This topic provides answers to some frequently asked questions about Container Service for Kubernetes (ACK).

If you receive error messages returned by ACK, you can refer to ACK error codes to fix the errors. If you do not receive error messages, you can identify the causes of the errors and fix the errors based on the following scenarios.

Product FAQ


FAQ about authorization management FAQ about cluster management FAQ about node management FAQ about container networks Service FAQ Ingress FAQ DNS FAQ FAQ about applications FAQ about CSI	FAQ about FlexVolume FAQ about container security FAQ about the observability of ACK FAQ about auto scaling GPU/NPU FAQ FAQ about the backup center FAQ about registered clusters FAQ about multi-cluster management

References


Cluster networking	How do I resolve the issue that the cluster cannot connect to the public IP address of the SLB instance that is associated with the LoadBalancer Service? How do I troubleshoot cluster connection issues? Configure an Ingress controller to use an internal-facing SLB instance How do I troubleshoot network issues of Kubernetes clusters? How is session persistence implemented in Kubernetes Services? How do I obtain the public IP address of an application in a cluster? How do I resolve network errors that occur when the Terway network plug-in is used in exclusive ENI mode? How do I resolve the issue that the IP addresses provided by the vSwitch are insufficient when the Terway network plug-in is used? How can I use SLB instances in an ACK cluster?
Cluster management	Troubleshoot cluster creation failures Troubleshoot ACK clusters FAQ about adding nodes to a cluster Troubleshoot cluster deletion failures Timeout errors in cluster management by using Cloud Shell The "drain-node job execute timeout" error appears during node removal Troubleshoot cluster scale-out errors
permissions and security	How do I collect diagnostic data from nodes in an ACK cluster? How does a RAM user assign RBAC roles to other RAM users? The kubelet log of an ACK cluster that uses the CentOS 7.6 operating system contains the "Reason:KubeletNotReady Message:PLEG is not healthy:" information How do I collect diagnostic data from nodes in an edge Kubernetes cluster? How do I specify a security group for an ACK cluster? How do I fix the "You have no permission to perform this operation. Contact the Alibaba Cloud account owner or an authorized RAM user to request permission." error? How do I assign custom RAM roles in an ACK cluster?
Components and applications	How do I troubleshoot precheck failures during CCM update? How do I troubleshoot application errors in ACK? How do I manually upgrade Helm? How do I upgrade the kernel of GPU nodes in a cluster? How do I troubleshoot errors that occur when I configure auto scaling components? How do I fix the error that the number of available GPUs is less than the actual number of GPUs How do I rename SLB instances if the CCM version is 1.9.3.10 or earlier?
Container Registry	How do I create containers from private images in an ACK cluster? What do I do if I fail to create repositories in Container Registry? What do I do if I fail to bind a source code repository in Container Registry? How do I fix errors that occur on GPU nodes when kubelet or Docker is restarted?