Add CloudFormation methods delete_change_set, describe_change_set and list_change_sets.
This commit is contained in:
Mark Challoner
parent
850496f29a
commit
337601b5fb
@ -477,12 +477,12 @@
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- [X] create_stack
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- [ ] create_stack_instances
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- [ ] create_stack_set
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- [ ] delete_change_set
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- [X] delete_change_set
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- [X] delete_stack
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- [ ] delete_stack_instances
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- [ ] delete_stack_set
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- [ ] describe_account_limits
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- [ ] describe_change_set
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- [X] describe_change_set
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- [ ] describe_stack_events
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- [ ] describe_stack_instance
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- [ ] describe_stack_resource
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@ -495,7 +495,7 @@
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- [ ] get_stack_policy
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- [ ] get_template
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- [ ] get_template_summary
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- [ ] list_change_sets
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- [X] list_change_sets
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- [X] list_exports
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- [ ] list_imports
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- [ ] list_stack_instances
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@ -127,6 +127,49 @@ class FakeStack(BaseModel):
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self.status = "DELETE_COMPLETE"
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class FakeChange(BaseModel):
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def __init__(self, action, logical_resource_id, resource_type):
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self.action = action
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self.logical_resource_id = logical_resource_id
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self.resource_type = resource_type
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class FakeChangeSet(FakeStack):
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def __init__(self, stack_id, stack_name, stack_template, change_set_id, change_set_name, template, parameters, region_name, notification_arns=None, tags=None, role_arn=None, cross_stack_resources=None):
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super(FakeChangeSet, self).__init__(
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stack_id,
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stack_name,
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stack_template,
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parameters,
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region_name,
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notification_arns=notification_arns,
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tags=tags,
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role_arn=role_arn,
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cross_stack_resources=cross_stack_resources,
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create_change_set=True,
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)
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self.stack_name = stack_name
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self.change_set_id = change_set_id
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self.change_set_name = change_set_name
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self.changes = self.diff(template=template, parameters=parameters)
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def diff(self, template, parameters=None):
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self.template = template
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self._parse_template()
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changes = []
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resources_by_action = self.resource_map.diff(self.template_dict, parameters)
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for action, resources in resources_by_action.items():
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for resource_name, resource in resources.items():
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changes.append(FakeChange(
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action=action,
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logical_resource_id=resource_name,
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resource_type=resource['ResourceType'],
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))
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return changes
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class FakeEvent(BaseModel):
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def __init__(self, stack_id, stack_name, logical_resource_id, physical_resource_id, resource_type, resource_status, resource_status_reason=None, resource_properties=None):
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@ -171,24 +214,62 @@ class CloudFormationBackend(BaseBackend):
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return new_stack
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def create_change_set(self, stack_name, change_set_name, template, parameters, region_name, change_set_type, notification_arns=None, tags=None, role_arn=None):
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stack_id = None
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stack_template = None
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if change_set_type == 'UPDATE':
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stacks = self.stacks.values()
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stack = None
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for s in stacks:
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if s.name == stack_name:
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stack = s
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stack_id = stack.stack_id
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stack_template = stack.template
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if stack is None:
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raise ValidationError(stack_name)
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else:
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stack = self.create_stack(stack_name, template, parameters,
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region_name, notification_arns, tags,
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role_arn, create_change_set=True)
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stack_id = generate_stack_id(stack_name)
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stack_template = template
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change_set_id = generate_changeset_id(change_set_name, region_name)
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self.stacks[change_set_name] = {'Id': change_set_id,
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'StackId': stack.stack_id}
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self.change_sets[change_set_id] = stack
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return change_set_id, stack.stack_id
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new_change_set = FakeChangeSet(
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stack_id=stack_id,
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stack_name=stack_name,
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stack_template=stack_template,
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change_set_id=change_set_id,
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change_set_name=change_set_name,
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template=template,
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parameters=parameters,
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region_name=region_name,
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notification_arns=notification_arns,
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tags=tags,
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role_arn=role_arn,
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cross_stack_resources=self.exports
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)
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self.change_sets[change_set_id] = new_change_set
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self.stacks[stack_id] = new_change_set
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return change_set_id, stack_id
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def delete_change_set(self, change_set_name, stack_name=None):
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if change_set_name in self.change_sets:
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# This means arn was passed in
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del self.change_sets[change_set_name]
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else:
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for cs in self.change_sets:
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if self.change_sets[cs].change_set_name == change_set_name:
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del self.change_sets[cs]
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def describe_change_set(self, change_set_name, stack_name=None):
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change_set = None
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if change_set_name in self.change_sets:
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# This means arn was passed in
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change_set = self.change_sets[change_set_name]
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else:
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for cs in self.change_sets:
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if self.change_sets[cs].change_set_name == change_set_name:
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change_set = self.change_sets[cs]
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if change_set is None:
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raise ValidationError(change_set_name)
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return change_set
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def execute_change_set(self, change_set_name, stack_name=None):
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stack = None
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@ -197,7 +278,7 @@ class CloudFormationBackend(BaseBackend):
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stack = self.change_sets[change_set_name]
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else:
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for cs in self.change_sets:
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if self.change_sets[cs].name == change_set_name:
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if self.change_sets[cs].change_set_name == change_set_name:
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stack = self.change_sets[cs]
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if stack is None:
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raise ValidationError(stack_name)
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@ -223,6 +304,9 @@ class CloudFormationBackend(BaseBackend):
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else:
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return list(stacks)
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def list_change_sets(self):
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return self.change_sets.values()
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def list_stacks(self):
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return [
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v for v in self.stacks.values()
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@ -465,36 +465,70 @@ class ResourceMap(collections.Mapping):
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ec2_models.ec2_backends[self._region_name].create_tags(
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[self[resource].physical_resource_id], self.tags)
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def update(self, template, parameters=None):
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def diff(self, template, parameters=None):
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if parameters:
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self.input_parameters = parameters
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self.load_mapping()
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self.load_parameters()
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self.load_conditions()
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old_template = self._resource_json_map
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new_template = template['Resources']
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resource_names_by_action = {
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'Add': set(new_template) - set(old_template),
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'Modify': set(name for name in new_template if name in old_template and new_template[
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name] != old_template[name]),
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'Remove': set(old_template) - set(new_template)
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}
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resources_by_action = {
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'Add': {},
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'Modify': {},
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'Remove': {},
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}
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for resource_name in resource_names_by_action['Add']:
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resources_by_action['Add'][resource_name] = {
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'LogicalResourceId': resource_name,
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'ResourceType': new_template[resource_name]['Type']
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}
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for resource_name in resource_names_by_action['Modify']:
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resources_by_action['Modify'][resource_name] = {
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'LogicalResourceId': resource_name,
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'ResourceType': new_template[resource_name]['Type']
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}
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for resource_name in resource_names_by_action['Remove']:
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resources_by_action['Remove'][resource_name] = {
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'LogicalResourceId': resource_name,
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'ResourceType': old_template[resource_name]['Type']
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}
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return resources_by_action
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def update(self, template, parameters=None):
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resources_by_action = self.diff(template, parameters)
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old_template = self._resource_json_map
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new_template = template['Resources']
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self._resource_json_map = new_template
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new_resource_names = set(new_template) - set(old_template)
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for resource_name in new_resource_names:
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for resource_name, resource in resources_by_action['Add'].items():
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resource_json = new_template[resource_name]
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new_resource = parse_and_create_resource(
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resource_name, resource_json, self, self._region_name)
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self._parsed_resources[resource_name] = new_resource
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removed_resource_names = set(old_template) - set(new_template)
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for resource_name in removed_resource_names:
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for resource_name, resource in resources_by_action['Remove'].items():
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resource_json = old_template[resource_name]
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parse_and_delete_resource(
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resource_name, resource_json, self, self._region_name)
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self._parsed_resources.pop(resource_name)
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resources_to_update = set(name for name in new_template if name in old_template and new_template[
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name] != old_template[name])
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tries = 1
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while resources_to_update and tries < 5:
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for resource_name in resources_to_update.copy():
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while resources_by_action['Modify'] and tries < 5:
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for resource_name, resource in resources_by_action['Modify'].copy().items():
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resource_json = new_template[resource_name]
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try:
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changed_resource = parse_and_update_resource(
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@ -505,7 +539,7 @@ class ResourceMap(collections.Mapping):
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last_exception = e
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else:
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self._parsed_resources[resource_name] = changed_resource
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resources_to_update.remove(resource_name)
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del resources_by_action['Modify'][resource_name]
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tries += 1
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if tries == 5:
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raise last_exception
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@ -120,6 +120,31 @@ class CloudFormationResponse(BaseResponse):
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template = self.response_template(CREATE_CHANGE_SET_RESPONSE_TEMPLATE)
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return template.render(stack_id=stack_id, change_set_id=change_set_id)
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def delete_change_set(self):
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stack_name = self._get_param('StackName')
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change_set_name = self._get_param('ChangeSetName')
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self.cloudformation_backend.delete_change_set(change_set_name=change_set_name, stack_name=stack_name)
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if self.request_json:
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return json.dumps({
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'DeleteChangeSetResponse': {
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'DeleteChangeSetResult': {},
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}
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})
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else:
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template = self.response_template(DELETE_CHANGE_SET_RESPONSE_TEMPLATE)
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return template.render()
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def describe_change_set(self):
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stack_name = self._get_param('StackName')
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change_set_name = self._get_param('ChangeSetName')
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change_set = self.cloudformation_backend.describe_change_set(
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change_set_name=change_set_name,
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stack_name=stack_name,
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)
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template = self.response_template(DESCRIBE_CHANGE_SET_RESPONSE_TEMPLATE)
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return template.render(change_set=change_set)
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@amzn_request_id
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def execute_change_set(self):
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stack_name = self._get_param('StackName')
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@ -187,6 +212,11 @@ class CloudFormationResponse(BaseResponse):
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template = self.response_template(DESCRIBE_STACK_EVENTS_RESPONSE)
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return template.render(stack=stack)
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def list_change_sets(self):
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change_sets = self.cloudformation_backend.list_change_sets()
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template = self.response_template(LIST_CHANGE_SETS_RESPONSE)
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return template.render(change_sets=change_sets)
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def list_stacks(self):
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stacks = self.cloudformation_backend.list_stacks()
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template = self.response_template(LIST_STACKS_RESPONSE)
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@ -354,6 +384,66 @@ CREATE_CHANGE_SET_RESPONSE_TEMPLATE = """<CreateStackResponse>
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</CreateStackResponse>
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"""
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DELETE_CHANGE_SET_RESPONSE_TEMPLATE = """<DeleteChangeSetResponse>
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<DeleteChangeSetResult>
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</DeleteChangeSetResult>
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<ResponseMetadata>
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<RequestId>3d3200a1-810e-3023-6cc3-example</RequestId>
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</ResponseMetadata>
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</DeleteChangeSetResponse>
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"""
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DESCRIBE_CHANGE_SET_RESPONSE_TEMPLATE = """<DescribeChangeSetResponse>
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<DescribeChangeSetResult>
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<ChangeSetId>{{ change_set.change_set_id }}</ChangeSetId>
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<ChangeSetName>{{ change_set.change_set_name }}</ChangeSetName>
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<StackId>{{ change_set.stack_id }}</StackId>
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<StackName>{{ change_set.stack_name }}</StackName>
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<Description>{{ change_set.description }}</Description>
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<Parameters>
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{% for param_name, param_value in change_set.stack_parameters.items() %}
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<member>
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<ParameterKey>{{ param_name }}</ParameterKey>
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<ParameterValue>{{ param_value }}</ParameterValue>
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</member>
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{% endfor %}
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</Parameters>
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<CreationTime>2011-05-23T15:47:44Z</CreationTime>
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<ExecutionStatus>{{ change_set.execution_status }}</ExecutionStatus>
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<Status>{{ change_set.status }}</Status>
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<StatusReason>{{ change_set.status_reason }}</StatusReason>
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{% if change_set.notification_arns %}
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<NotificationARNs>
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{% for notification_arn in change_set.notification_arns %}
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<member>{{ notification_arn }}</member>
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{% endfor %}
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</NotificationARNs>
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{% else %}
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<NotificationARNs/>
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{% endif %}
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{% if change_set.role_arn %}
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<RoleARN>{{ change_set.role_arn }}</RoleARN>
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{% endif %}
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{% if change_set.changes %}
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<Changes>
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{% for change in change_set.changes %}
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<member>
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<Type>Resource</Type>
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<ResourceChange>
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<Action>{{ change.action }}</Action>
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<LogicalResourceId>{{ change.logical_resource_id }}</LogicalResourceId>
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<ResourceType>{{ change.resource_type }}</ResourceType>
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</ResourceChange>
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</member>
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{% endfor %}
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</Changes>
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{% endif %}
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{% if next_token %}
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<NextToken>{{ next_token }}</NextToken>
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{% endif %}
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</DescribeChangeSetResult>
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</DescribeChangeSetResponse>"""
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EXECUTE_CHANGE_SET_RESPONSE_TEMPLATE = """<ExecuteChangeSetResponse>
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<ExecuteChangeSetResult>
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<ExecuteChangeSetResult/>
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@ -479,6 +569,27 @@ DESCRIBE_STACK_EVENTS_RESPONSE = """<DescribeStackEventsResponse xmlns="http://c
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</DescribeStackEventsResponse>"""
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LIST_CHANGE_SETS_RESPONSE = """<ListChangeSetsResponse>
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<ListChangeSetsResult>
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<Summaries>
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{% for change_set in change_sets %}
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<member>
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<StackId>{{ change_set.stack_id }}</StackId>
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<StackName>{{ change_set.stack_name }}</StackName>
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<ChangeSetId>{{ change_set.change_set_id }}</ChangeSetId>
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<ChangeSetName>{{ change_set.change_set_name }}</ChangeSetName>
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<ExecutionStatus>{{ change_set.execution_status }}</ExecutionStatus>
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<Status>{{ change_set.status }}</Status>
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<StatusReason>{{ change_set.status_reason }}</StatusReason>
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<CreationTime>2011-05-23T15:47:44Z</CreationTime>
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<Description>{{ change_set.description }}</Description>
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</member>
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{% endfor %}
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</Summaries>
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</ListChangeSetsResult>
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</ListChangeSetsResponse>"""
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LIST_STACKS_RESPONSE = """<ListStacksResponse>
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<ListStacksResult>
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<StackSummaries>
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@ -399,6 +399,32 @@ def test_create_change_set_from_s3_url():
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assert 'arn:aws:cloudformation:us-east-1:123456789:stack/NewStack' in response['StackId']
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@mock_cloudformation
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def test_describe_change_set():
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cf_conn = boto3.client('cloudformation', region_name='us-east-1')
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cf_conn.create_change_set(
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StackName='NewStack',
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TemplateBody=dummy_template_json,
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ChangeSetName='NewChangeSet',
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ChangeSetType='CREATE',
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)
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stack = cf_conn.describe_change_set(ChangeSetName="NewChangeSet")
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stack['ChangeSetName'].should.equal('NewChangeSet')
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stack['StackName'].should.equal('NewStack')
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cf_conn.create_change_set(
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StackName='NewStack',
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TemplateBody=dummy_update_template_json,
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ChangeSetName='NewChangeSet2',
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ChangeSetType='UPDATE',
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)
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stack = cf_conn.describe_change_set(ChangeSetName="NewChangeSet2")
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stack['ChangeSetName'].should.equal('NewChangeSet2')
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stack['StackName'].should.equal('NewStack')
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stack['Changes'].should.have.length_of(2)
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@mock_cloudformation
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def test_execute_change_set_w_arn():
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cf_conn = boto3.client('cloudformation', region_name='us-east-1')
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@ -420,7 +446,7 @@ def test_execute_change_set_w_name():
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ChangeSetName='NewChangeSet',
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ChangeSetType='CREATE',
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)
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cf_conn.execute_change_set(ChangeSetName='NewStack', StackName='NewStack')
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cf_conn.execute_change_set(ChangeSetName='NewChangeSet', StackName='NewStack')
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@mock_cloudformation
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@ -489,6 +515,20 @@ def test_describe_stack_by_stack_id():
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stack_by_id['StackName'].should.equal("test_stack")
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@mock_cloudformation
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def test_list_change_sets():
|
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cf_conn = boto3.client('cloudformation', region_name='us-east-1')
|
||||
cf_conn.create_change_set(
|
||||
StackName='NewStack2',
|
||||
TemplateBody=dummy_template_json,
|
||||
ChangeSetName='NewChangeSet2',
|
||||
ChangeSetType='CREATE',
|
||||
)
|
||||
change_set = cf_conn.list_change_sets(StackName='NewStack2')['Summaries'][0]
|
||||
change_set['StackName'].should.equal('NewStack2')
|
||||
change_set['ChangeSetName'].should.equal('NewChangeSet2')
|
||||
|
||||
|
||||
@mock_cloudformation
|
||||
def test_list_stacks():
|
||||
cf = boto3.resource('cloudformation', region_name='us-east-1')
|
||||
@ -521,6 +561,22 @@ def test_delete_stack_from_resource():
|
||||
list(cf.stacks.all()).should.have.length_of(0)
|
||||
|
||||
|
||||
@mock_cloudformation
|
||||
@mock_ec2
|
||||
def test_delete_change_set():
|
||||
cf_conn = boto3.client('cloudformation', region_name='us-east-1')
|
||||
cf_conn.create_change_set(
|
||||
StackName='NewStack',
|
||||
TemplateBody=dummy_template_json,
|
||||
ChangeSetName='NewChangeSet',
|
||||
ChangeSetType='CREATE',
|
||||
)
|
||||
|
||||
cf_conn.list_change_sets(StackName='NewStack')['Summaries'].should.have.length_of(1)
|
||||
cf_conn.delete_change_set(ChangeSetName='NewChangeSet', StackName='NewStack')
|
||||
cf_conn.list_change_sets(StackName='NewStack')['Summaries'].should.have.length_of(0)
|
||||
|
||||
|
||||
@mock_cloudformation
|
||||
@mock_ec2
|
||||
def test_delete_stack_by_name():
|
||||
|
||||
Loading…
Reference in New Issue
Block a user