Blog

LB IPAM and Traffic Policy

Articles 48 and 49 both stopped where the LoadBalancer Service and Gateway hung with external-IP <pending> — nobody hands out addresses on a self-built cluster. This article fills the gap with Cilium's LB IPAM: define an IP range, let Cilium assign it, and the previous Gateway flips to Programmed=True. Then externalTrafficPolicy — Cluster or Local decides whether the client's source IP survives. With a clear line between assigning an IP and advertising it.