GKE: Egress IP Changes on cluster recreate about terraform-kubestack

[Spazzy757]

Just a note this will also allow to set multiple egress IP's that will help with large volumes of egress traffic and how the port/ip mapping works

[Spazzy757]

Seems the issue with passing in the nat_ips is that they depend on the subnet that the module creates.

[Spazzy757]

So another update on this, setting AUTO_ONLY also auto-scales IP's so based on how many nodes you have in your cluster it starts spinning up new IP addresses

So after some playing around I fell on this fix, it allows you to specify how many Egress IP addresses you want and attaches them to the Nat gateway. Any thoughts on how to make this backwards compatible for users?

[pst]

I'd try a conditional on the length of the compute address resource, and if that's zero set nat_ips = null.

Similar to this: https://github.com/kbst/terraform-kubestack/blob/eksnodepools/aws/cluster/node-pool/vpc.tf#L9

[Spazzy757]

Okay awesome! 👍 I updated to be backwards compatible, I'll open up a PR for the changes so you can check it out