add empty node spec when addnode with nil option

Author: CMGS

resource/cobalt/node.go

@@ -32,6 +32,9 @@ func (m Manager) AddNode(ctx context.Context, nodename string, opts resourcetype
 		func(ctx context.Context) error {
 			resps, err := call(ctx, m.plugins, func(plugin plugins.Plugin) (*plugintypes.AddNodeResponse, error) {
 				r := opts[plugin.Name()]
+				if r == nil {
+					return &plugintypes.AddNodeResponse{}, nil
+				}
 				logger.WithField("plugin", plugin.Name()).WithField("node", nodename).Infof(ctx, "%v", litter.Sdump(r))
 				resp, err := plugin.AddNode(ctx, nodename, r, nodeInfo)
 				if err != nil {