feat(p2p): allow to run multiple clusters in the same p2p network (#3128)

feat(p2p): allow to run multiple clusters in the same network

Allow to specify a network ID via CLI which allows to run multiple
clusters, logically separated within the same network (by using the same
shared token).

Note: This segregation is not "secure" by any means, anyone having the
network token can see the services available in all the network,
however, this provides a way to separate the inference endpoints.

This allows for instance to have a node which is both federated and
having attached a set of llama.cpp workers.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

core/p2p/federated.go

@@ -1,7 +1,16 @@
 package p2p
 
+import "fmt"
+
 const FederatedID = "federated"
 
+func NetworkID(networkID, serviceID string) string {
+	if networkID != "" {
+		return fmt.Sprintf("%s_%s", networkID, serviceID)
+	}
+	return serviceID
+}
+
 type FederatedServer struct {
 	listenAddr, service, p2ptoken string
 	requestTable                  map[string]int