cmd/microcloud: Show a warning if the OVN underlay network and the Mi…

…croCeph cluster network share traffic on the same network interface

Signed-off-by: Gabriel Mougard <gabriel.mougard@canonical.com>

cmd/microcloud/main_init.go

@@ -533,8 +533,8 @@ func (c *initConfig) validateSystems(s *service.Handler) (err error) {
 			return fmt.Errorf("OVN underlay IP %q is invalid", sys.OVNGeneveAddr)
 		}
 
-		if subnet.Contains(underlayIP) {
-			fmt.Printf("Warning: OVN underlay IP (%s) is shared with the Ceph cluster network (%s)\n", underlayIP.String(), subnet.String())
+		if sys.OVNGeneveIface == sys.MicroCephInternalNetworkIface {
+			fmt.Printf("Warning: OVN underlay (IP: %s) is shared on the same network interface %q with the Ceph cluster network (IP: %s)\n", underlayIP.String(), sys.OVNGeneveIface, subnet.String())
 
 			break
 		}