gke/ERR/2023_002
GKE private clusters are VPC-native.
Product: Google Kubernetes Engine
Rule class: ERR - Something that is very likely to be wrong
Description
Private cluster is a type of VPC-native cluster and must not be Routes-based. VPC-native clusters use alias IP address ranges on GKE nodes and are required for private GKE clusters and for creating clusters on Shared VPCs, as well as many other features.
Remediation
Migrate to VPC-Native private cluster by recreating the cluster.