GKE AUTOPILOT CLUSTER CREATION : pod cidr range restricted to /8 to /22.Can this be modified

Question

Trying to use a subnet with a small scope of ips : 10.x.x.0/26 for pods with gke-autopilot . Autopilot default to /8 to /21 .However in standard private cluster ...able to use a /26 for pods .I s ther any way to configure this value for pod cidr range in auto pilot ? Is there any way in autopilot to configure pod ip nestmasks at /24 and above ?

Trying a /26 segment on autopilot ..it wont let me use it.

Answer 1

The mask in the Cluster default Pod address range has maximum value of /21 when using alias ip and /19 otherwise.

This applies to both standard and and autopilot clusters. However, in autopilot clusters alias ip is used and can't be changed so it is always maximum of /21.

Note that this range applies to the default in the cluster, but can be overridden in nodepools.

I'm pretty sure you can't set it to more than that :)
Maybe the /26 you are mentioning refers to the mask at node level, but this is automatically deduced from Maximum pods per node which can't be manually configured in autopilot since the nodes in the cluster is managed by GKE.