ceph: use node externalIP if no internalIP defined

In some cases node internalIP is not defined. Then use externalIP if it
exists.

Signed-off-by: JrCs <90z7oey02@sneakemail.com>

pkg/operator/ceph/cluster/mon/node.go

@@ -34,8 +34,20 @@ func getNodeInfoFromNode(n v1.Node) (*MonScheduleInfo, error) {
 			break
 		}
 	}
+
+	// If no internal IP found try to use an external IP
+	if nr.Address == "" {
+		for _, ip := range n.Status.Addresses {
+			if ip.Type == v1.NodeExternalIP {
+				logger.Debugf("using external IP %s for node %s", ip.Address, n.Name)
+				nr.Address = ip.Address
+				break
+			}
+		}
+	}
+
 	if nr.Address == "" {
-		return nil, errors.Errorf("failed to find any internal IP on node %s", nr.Name)
+		return nil, errors.Errorf("failed to find any internal or external IP on node %s", nr.Name)
 	}
 	return nr, nil
 }