To improve user experience, Alibaba Cloud will update the control planes of Container Service for Kubernetes from the middle of October 2022 to the end of October 2022. When you delete an ACK cluster or ACK Serverless cluster, ACK automatically releases the elastic container instances that are deployed in the cluster. ACK no longer reminds you to release existing elastic container instances when you delete the cluster. We recommend that you prepare before the update starts.
Before the change
Before you delete an ACK cluster or ACK Serverless cluster, you need to manually release the elastic container instances in the cluster. Otherwise, you fail to delete the cluster. If you do not release the elastic container instances, the instances continuously incur fees.
After the change
The system attempts to release the elastic container instances in the cluster and no longer reminds you to release elastic container instances when you delete a cluster.
Container Service for Kubernetes will release the elastic container instances that fail to be released after periodic resource checking.