Cluster Creation

Can I choose not to set a public IP address for the CVM when creating a cluster?

Yes. A CVM without a public IP address can only pull images from "My Images" in Image Repository but not Docker Hub images or third-party images.
A CVM without a public IP address but with Internet bandwidth can access the Internet by binding an EIP.

Why do I need to choose a network when creating a cluster?

The selected network and subnet are where the CVM resides. You can add different CVMs to subnets in different AZs for cross-AZ disaster recovery.

What CVM models are supported when creating a cluster?

All pay-as-you-go models that use cloud disks as system disks are supported.

What operating systems are supported for TKE hosts?

Currently, Ubuntu 16.04 and CentOS 7.2 are supported. If you need other operating systems, submit a ticket to contact us.

Adding CVMs

What are the limitations on adding CVMs to a cluster?

You can only choose the CVMs in the same region as the cluster. But you may choose a different AZ to implement cross-AZ deployment of the cluster.

Is there a limit on the number of CVMs?

Yes. The number of pay-as-you-go CVMs cannot exceed the usage quota of the current account. For details, see CVM Overview.

CVM Termination

After a CVM is terminated, what will happen to the containers deployed in it?

When a CVM instance is terminated, the resources it contains, such as containers, will also be terminated. If the number of containers for a service drops below the expected number of running containers, the cluster will launch more containers in other CVM instances until the desired number is met.