So, it is lack of validation. It should be verified that roles of existing nodes are the same as defined in template (set of roles on real nodes may be the subset of those defined in a template but cannot be a superset of those).
So, it is lack of validation. It should be verified that roles of existing nodes are the same as defined in template (set of roles on real nodes may be the subset of those defined in a template but cannot be a superset of those).