Source code for heat.engine.cfn.template

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from heat.engine import parameters
from heat.engine import template


[docs]class CfnTemplate(template.Template): '''A stack template.''' SECTIONS = (VERSION, ALTERNATE_VERSION, DESCRIPTION, MAPPINGS, PARAMETERS, RESOURCES, OUTPUTS) = \ ('AWSTemplateFormatVersion', 'HeatTemplateFormatVersion', 'Description', 'Mappings', 'Parameters', 'Resources', 'Outputs' ) SECTIONS_NO_DIRECT_ACCESS = set([PARAMETERS, VERSION, ALTERNATE_VERSION]) def __getitem__(self, section): '''Get the relevant section in the template.''' if section not in self.SECTIONS: raise KeyError(_('"%s" is not a valid template section') % section) if section in self.SECTIONS_NO_DIRECT_ACCESS: raise KeyError( _('Section %s can not be accessed directly.') % section) if section == self.DESCRIPTION: default = 'No description' else: default = {} return self.t.get(section, default)
[docs] def param_schemata(self): params = self.t.get(self.PARAMETERS, {}).iteritems() return dict((name, parameters.Schema.from_dict(schema)) for name, schema in params)
[docs] def parameters(self, stack_identifier, user_params): return parameters.Parameters(stack_identifier, self, user_params=user_params)
[docs]def template_mapping(): return { ('HeatTemplateFormatVersion', '2012-12-12'): CfnTemplate, ('AWSTemplateFormatVersion', '2010-09-09'): CfnTemplate, }