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Viewing changes to heat/engine/stack_resource.py

  • Committer: Package Import Robot
  • Author(s): Chuck Short
  • Date: 2013-10-03 09:43:04 UTC
  • mto: This revision was merged to the branch mainline in revision 15.
  • Revision ID: package-import@ubuntu.com-20131003094304-zhhr2brapzlpvjmm
Tags: upstream-2013.2~rc1
Import upstream version 2013.2~rc1

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heat/engine/stack_resource.py
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from heat.engine import parser
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from heat.engine import resource
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from heat.engine import scheduler
 
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from heat.engine import template as tmpl
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from heat.openstack.common import log as logging
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    as a resource in a parent stack.
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    '''
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    # Assume True as this is evaluated before the stack is created
 
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    # so there is no way to know for sure without subclass-specific
 
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    # template parsing.
 
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    requires_deferred_auth = True
 
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    def __init__(self, name, json_snippet, stack):
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        super(StackResource, self).__init__(name, json_snippet, stack)
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        self._nested = None
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        Handle the creation of the nested stack from a given JSON template.
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        '''
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        if self.recursion_depth >= cfg.CONF.max_nested_stack_depth:
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            raise exception.StackRecursionLimitReached(
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                cfg.CONF.max_nested_stack_depth)
 
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            msg = _("Recursion depth exceeds %d.") % \
 
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                cfg.CONF.max_nested_stack_depth
 
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            raise exception.RequestLimitExceeded(message=msg)
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        template = parser.Template(child_template)
 
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        if ((len(template[tmpl.RESOURCES]) +
 
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             self.stack.root_stack.total_resources() >
 
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             cfg.CONF.max_resources_per_stack)):
 
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            raise exception.RequestLimitExceeded(
 
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                message=exception.StackResourceLimitExceeded.message)
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        self._outputs_to_attribs(child_template)
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        # Note we disable rollback for nested stacks, since they
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        # on updated templates we should make sure it's optional because not
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        # all subclasses want that behavior, since they may offer custom
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        # attributes.
 
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        nested_stack = self.nested()
 
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        if nested_stack is not None:
 
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            res_diff = (
 
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                len(template[tmpl.RESOURCES]) - len(nested_stack.resources))
 
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            new_size = nested_stack.root_stack.total_resources() + res_diff
 
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            if new_size > cfg.CONF.max_resources_per_stack:
 
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                raise exception.RequestLimitExceeded(
 
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                    message=exception.StackResourceLimitExceeded.message)
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        # Note we disable rollback for nested stacks, since they
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        # should be rolled back by the parent stack on failure