LB-IPAM: Account for protocol differentiation in IP sharing checks #34677
Description
LB-IPAM has a feature which allows services to share an IP under a number of conditions. One of these is that ports are not allowed to overlap. So far, it didn't matter for which protocol these ports were since the Cilium datapath was unable to differentiate between TCP and UDP. Now that #33434 has merged, we should adjust this check so a service with port UDP/80 and and a service with port TCP/80 can share an IP.
The logic in question lives here:
cilium/operator/pkg/lbipam/service_store.go
Line 107 in 6b211cc