GKE IP Exhaustion 2026: The /24 Trap & Autopilot’s Hidden Cost
The “Stockout” Error on a Healthy Subnet It’s 2 PM on a random Tuesday, and suddenly the Cluster Autoscaler throws a warning: Unschedulable—No free IPs in subnet. You open up the VPC. The subnet’s a /20, so that’s 4,096 IPs. You only have 15 nodes. Quick math: 15 nodes, maybe 30 pods each, tops. That’s…