definition.py 文件源码

def _load_role_name(self, ds):
        '''
        Returns the role name (either the role: or name: field) from
        the role definition, or (when the role definition is a simple
        string), just that string
        '''

        if isinstance(ds, string_types):
            return ds

        role_name = ds.get('role', ds.get('name'))
        if not role_name or not isinstance(role_name, string_types):
            raise AnsibleError('role definitions must contain a role name', obj=ds)

        # if we have the required datastructures, and if the role_name
        # contains a variable, try and template it now
        if self._variable_manager:
            all_vars = self._variable_manager.get_vars(loader=self._loader, play=self._play)
            templar = Templar(loader=self._loader, variables=all_vars)
            if templar._contains_vars(role_name):
                role_name = templar.template(role_name)

        return role_name