Can we add multiple gke cluster in gcp nat instance ?

[imvishalvyas]

i have created nat instance and added one cluster behind NAT, now i want to create another cluster and add into NAT instance. please suggest.

[danisla]

You can use a common network tag to route traffic from both clusters through the NAT instance.

My suggestion is to add a common network tag like gke-nat to the nodes in your cluster. You can apply this to the node pools using the --tags argument if you created the cluster with gcloud or set the tags list when creating with Terraform.

Note that this only works for clusters in the same VPC network.