Starting from 10:00:00 (UTC+8), January 22, 2019, Alibaba Cloud charges fees for the elastic container instances that are used by serverless Kubernetes (ASK) clusters. For more information, see ASK overview. If you have created ASK clusters and pods that run on elastic container instances, make sure that you have a sufficient balance to pay for the elastic container instances. Elastic container instances are billed based on uptime. If you no longer require elastic container instances, release them to avoid unnecessary costs. You can continue to use ASK clusters free of charge to serve your workloads.