Source code for awslimitchecker.services.autoscaling

"""
awslimitchecker/services/autoscaling.py

The latest version of this package is available at:
<https://github.com/jantman/awslimitchecker>

################################################################################
Copyright 2015 Jason Antman <jason@jasonantman.com> <http://www.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/pydnstest> 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
from ..utils import paginate_dict

logger = logging.getLogger(__name__)


[docs]class _AutoscalingService(_AwsService): service_name = 'AutoScaling' api_name = 'autoscaling'
[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`. """ logger.debug("Checking usage for service %s", self.service_name) self.connect() for lim in self.limits.values(): lim._reset_usage() self.limits['Auto Scaling groups']._add_current_usage( len( paginate_dict( self.conn.describe_auto_scaling_groups, alc_marker_path=['NextToken'], alc_data_path=['AutoScalingGroups'], alc_marker_param='NextToken' )['AutoScalingGroups'] ), aws_type='AWS::AutoScaling::AutoScalingGroup', ) self.limits['Launch configurations']._add_current_usage( len( paginate_dict( self.conn.describe_launch_configurations, alc_marker_path=['NextToken'], alc_data_path=['LaunchConfigurations'], alc_marker_param='NextToken' )['LaunchConfigurations'] ), aws_type='AWS::AutoScaling::LaunchConfiguration', ) 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 = {} # autoscaleconnection.get_all_groups() limits['Auto Scaling groups'] = AwsLimit( 'Auto Scaling groups', self, 20, self.warning_threshold, self.critical_threshold, limit_type='AWS::AutoScaling::AutoScalingGroup', ) # autoscaleconnection.get_all_launch_configurations() limits['Launch configurations'] = AwsLimit( 'Launch configurations', self, 100, self.warning_threshold, self.critical_threshold, limit_type='AWS::AutoScaling::LaunchConfiguration', ) self.limits = limits return limits
[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 [ 'autoscaling:DescribeAccountLimits', 'autoscaling:DescribeAutoScalingGroups', 'autoscaling:DescribeLaunchConfigurations', ]
[docs] def _update_limits_from_api(self): """ Query EC2's DescribeAccountAttributes API action, and update limits with the quotas returned. Updates ``self.limits``. """ self.connect() logger.info("Querying EC2 DescribeAccountAttributes for limits") lims = self.conn.describe_account_limits() self.limits['Auto Scaling groups']._set_api_limit( lims['MaxNumberOfAutoScalingGroups']) self.limits['Launch configurations']._set_api_limit( lims['MaxNumberOfLaunchConfigurations'])