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Use valid AKS cluster DNS prefix#

Operational Excellence · Azure Kubernetes Service · Rule · 2020_06 · Awareness

Azure Kubernetes Service (AKS) cluster DNS prefix should meet naming requirements.


The DNS prefix for AKS clusters has different requirements then the cluster name. The requirements for DNS prefixes are:

  • Between 1 and 54 characters long.
  • Alphanumerics and hyphens.
  • Start and end with alphanumeric.


Consider using a DNS prefix that meets naming requirements.