Question

Can I customise the Pod address range for a routes-based cluster on GKE? How can I do this?

Answer 1

For GKE version 1.7 and later, the Pod address range can be from any RFC 1918 block: 10.0.0.0/8, 172.16.0.0/12 or 192.168.0.0/16. For earlier versions, the Pod address range must be from 10.0.0.0/8.

You can customize Pod address range by specifying a CIDR range. For example, you could specify the range 10.96.0.0/16

gcloud container clusters create [CLUSTER_NAME] --no-enable-ip-alias \
    --cluster-ipv4-cidr 10.96.0.0/16

where [CLUSTER_NAME] is a name that you choose for your cluster.