fix: fall back to primary ip if outgoing is not set

Co-authored-by: Morten Lied Johansen <[email protected]>

Author: tronghn

internal/pkg/instance/instance.go

@@ -147,10 +147,16 @@ func PrepareSourceInstance(ctx context.Context, source *resolved.Instance, targe
 			return retry.RetryableError(err)
 		}
 
+		ip := target.OutgoingIp
+		if ip == "" {
+			ip = target.PrimaryIp
+		}
+
 		authNetwork := v1beta1.InstanceAuthorizedNetworks{
 			Name:  &target.Name,
-			Value: fmt.Sprintf("%s/32", target.OutgoingIp),
+			Value: fmt.Sprintf("%s/32", ip),
 		}
+
 		sourceSqlInstance.Spec.Settings.IpConfiguration.AuthorizedNetworks = appendAuthNetIfNotExists(sourceSqlInstance, authNetwork)
 
 		authNetwork, err = createMigratorAuthNetwork()