What are the validations for cluster name in Kubernetes?

Please tell me the minimum, maximum length of characters for Cluster name and what special characters are allowed for cluster name?


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Hi there!

We currently use the upstream kubernetes validation logic linked below.

TL;DR - 63 chars max + “a DNS-1035 label must consist of lower case alphanumeric characters or ‘-’, start with an alphabetic character, and end with an alphanumeric character”


John Kwiatkoski Senior Developer Support Engineer - Kubernetes