Add the convergence resource replacement logic
Implements blueprint convergence-resource-replacement Change-Id: I1b04de15d7212c111dd312a93f2798847424c6e3
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@ -255,9 +255,23 @@ class Resource(object):
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return resource, stack
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def make_replacement(self):
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# NOTE(sirushtim): Used for mocking. Will be complete
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# once convergence-resource-replacement is implemented.
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pass
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# 1. create the replacement with "replaces" = self.id
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# Don't set physical_resource_id so that a create is triggered.
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rs = {'stack_id': self.stack.id,
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'name': self.name,
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'properties_data': self._stored_properties_data,
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'needed_by': self.needed_by,
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'requires': self.requires,
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'replaces': self.id,
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'current_template_id': self.current_template_id,
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'stack_name': self.stack.name}
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new_rs = resource_objects.Resource.create(self.context, rs)
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# 2. update the current resource to be replaced_by the one above.
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rs = resource_objects.Resource.get_obj(self.context, self.id)
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self.replaced_by = new_rs.id
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rs.update_and_save({'replaced_by': self.replaced_by})
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return new_rs.id
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def reparse(self):
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self.properties = self.t.properties(self.properties_schema,
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@ -119,9 +119,11 @@ class WorkerService(service.Service):
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try:
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check_resource_update(rsrc, tmpl.id, data)
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except resource.UpdateReplace:
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# NOTE(sirushtim): Implemented by spec
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# convergence-resource-replacement.
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rsrc.make_replacement()
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new_res_id = rsrc.make_replacement()
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self._rpc_client.check_resource(cnxt,
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new_res_id,
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current_traversal,
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data, is_update)
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return
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except resource.UpdateInProgress:
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return
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@ -377,6 +377,18 @@ class ResourceTest(common.HeatTestCase):
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self.assertEqual(res.COMPLETE, db_res.status)
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self.assertEqual('test_update', db_res.status_reason)
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def test_make_replacement(self):
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tmpl = rsrc_defn.ResourceDefinition('test_resource', 'Foo')
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res = generic_rsrc.GenericResource('test_res_upd', tmpl, self.stack)
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res._store()
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self.assertIsNotNone(res.id)
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new_id = res.make_replacement()
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new_res = resource_objects.Resource.get_obj(res.context, new_id)
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self.assertEqual(new_id, res.replaced_by)
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self.assertEqual(res.id, new_res.replaces)
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self.assertIsNone(new_res.nova_instance)
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def test_parsed_template(self):
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join_func = cfn_funcs.Join(None,
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'Fn::Join', [' ', ['bar', 'baz', 'quux']])
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