fix: Ignore NRF URI containing a specific IP on registration

service/init.go

@@ -429,20 +429,17 @@ func (udm *UDM) registerNF() {
 	self := context.UDM_Self()
 	for msg := range ConfigPodTrigger {
 		initLog.Infof("Minimum configuration from config pod available %v", msg)
-		proflie, err := consumer.BuildNFInstance(self)
+		profile, err := consumer.BuildNFInstance(self)
 		if err != nil {
 			logger.InitLog.Errorln(err.Error())
 		} else {
-			var newNrfUri string
-			var err1 error
 			var prof models.NfProfile
-			prof, newNrfUri, self.NfId, err1 = consumer.SendRegisterNFInstance(self.NrfUri, self.NfId, proflie)
-			if err1 != nil {
-				logger.InitLog.Errorln(err1.Error())
+			prof, _, self.NfId, err = consumer.SendRegisterNFInstance(self.NrfUri, self.NfId, profile)
+			if err != nil {
+				logger.InitLog.Errorln(err.Error())
 			} else {
 				udm.StartKeepAliveTimer(prof)
 				logger.CfgLog.Infof("Sent Register NF Instance with updated profile")
-				self.NrfUri = newNrfUri
 			}
 		}
 	}

service/init_test.go

@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2023 Open Networking Foundation <[email protected]>
+//
+
+package service
+
+import (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/omec-project/udm/context"
+)
+
+func Test_nrf_url_is_not_overwritten_when_registering(t *testing.T) {
+	svr := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, "banana")
+	}))
+	svr.EnableHTTP2 = true
+	svr.StartTLS()
+	defer svr.Close()
+	self := context.UDM_Self()
+	self.NrfUri = svr.URL
+	self.RegisterIPv4 = "127.0.0.2"
+	var udm *UDM
+	go udm.registerNF()
+	ConfigPodTrigger <- true
+
+	time.Sleep(1 * time.Second)
+	if self.NrfUri != svr.URL {
+		t.Errorf("Expected NRF URL to stay %v, but was %v", svr.URL, self.NrfUri)
+	}
+}