code: func (c *Cluster) InspectImage(repo string) (*docker.Image, error) {
  	img, err := c.storage().RetrieveImage(repo)
  	if err != nil {
  		return nil, err
  	}
  	node, err := c.getNodeByAddr(img.LastNode)
  	if err != nil {
  		return nil, err
  	}
  	dockerImg, err := node.InspectImage(repo)
  	return dockerImg, wrapError(node, err)
  }
docs: // InspectImage inspects an image based on its repo name