Hosts cannot be searched specifically by image name
Host::Managed has a search defined for image names:
scoped_search :relation => :image, :on => :name, :complete_value => true
But it's only accessible with free text search by searching for just the image name. It should be possible to search specifically for
image = foo as well.
Currently this definition registers the search field
name (from :on) rather than an alias such as
name is used by host.name, no new field name is added for it.