Source code for awslimitchecker.services.cloudformation
"""
awslimitchecker/services/cloudformation.py
The latest version of this package is available at:
<https://github.com/jantman/awslimitchecker>
################################################################################
Copyright 2015-2018 Jason Antman <jason@jasonantman.com>
This file is part of awslimitchecker, also known as awslimitchecker.
awslimitchecker is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
awslimitchecker is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with awslimitchecker. If not, see <http://www.gnu.org/licenses/>.
The Copyright and Authors attributions contained herein may not be removed or
otherwise altered, except to add the Author attribution of a contributor to
this work. (Additional Terms pursuant to Section 7b of the AGPL v3)
################################################################################
While not legally required, I sincerely request that anyone who finds
bugs please submit them at <https://github.com/jantman/awslimitchecker> or
to me via email, and that you send any contributions or improvements
either as a pull request on GitHub, or to me via email.
################################################################################
AUTHORS:
Jason Antman <jason@jasonantman.com> <http://www.jasonantman.com>
################################################################################
"""
import abc # noqa
import logging
from .base import _AwsService
from ..limit import AwsLimit
logger = logging.getLogger(__name__)
[docs]class _CloudformationService(_AwsService):
service_name = 'CloudFormation'
api_name = 'cloudformation' # AWS API name to connect to (boto3.client)
quotas_service_code = 'cloudformation'
[docs] def find_usage(self):
"""
Determine the current usage for each limit of this service,
and update corresponding Limit via
:py:meth:`~.AwsLimit._add_current_usage`.
"""
ignore_statuses = [
'DELETE_COMPLETE'
]
logger.debug("Checking usage for service %s", self.service_name)
self.connect()
for lim in self.limits.values():
lim._reset_usage()
count = 0
paginator = self.conn.get_paginator('describe_stacks')
iter = paginator.paginate()
for page in iter:
for stk in page['Stacks']:
if stk['StackStatus'] not in ignore_statuses:
count += 1
self.limits['Stacks']._add_current_usage(
count, aws_type='AWS::CloudFormation::Stack'
)
self._have_usage = True
logger.debug("Done checking usage.")
[docs] def get_limits(self):
"""
Return all known limits for this service, as a dict of their names
to :py:class:`~.AwsLimit` objects.
:returns: dict of limit names to :py:class:`~.AwsLimit` objects
:rtype: dict
"""
if self.limits != {}:
return self.limits
limits = {}
limits['Stacks'] = AwsLimit(
'Stacks',
self,
200,
self.warning_threshold,
self.critical_threshold,
limit_type='AWS::CloudFormation::Stack',
quotas_name='Stack count'
)
self.limits = limits
return limits
[docs] def _update_limits_from_api(self):
"""
Call the service's API action to retrieve limit/quota information, and
update AwsLimit objects in ``self.limits`` with this information.
"""
logger.debug('Setting CloudFormation limits from API')
self.connect()
resp = self.conn.describe_account_limits()
for lim in resp['AccountLimits']:
if lim['Name'] == 'StackLimit':
self.limits['Stacks']._set_api_limit(lim['Value'])
continue
logger.debug('API response contained unknown CloudFormation '
'limit: %s', lim['Name'])
[docs] def required_iam_permissions(self):
"""
Return a list of IAM Actions required for this Service to function
properly. All Actions will be shown with an Effect of "Allow"
and a Resource of "*".
:returns: list of IAM Action strings
:rtype: list
"""
return [
'cloudformation:DescribeAccountLimits',
'cloudformation:DescribeStacks'
]