# Copyright 2015-2017 Capital One Services, LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Actions to take on resources
"""
from __future__ import absolute_import, division, print_function, unicode_literals
import logging
from c7n.exceptions import PolicyValidationError, ClientError
from c7n.executor import ThreadPoolExecutor
from c7n.registry import PluginRegistry
[docs]class ActionRegistry(PluginRegistry):
def __init__(self, *args, **kw):
super(ActionRegistry, self).__init__(*args, **kw)
# Defer to provider initialization of registry
from .notify import Notify
self.register('notify', Notify)
[docs] def parse(self, data, manager):
results = []
for d in data:
results.append(self.factory(d, manager))
return results
[docs] def factory(self, data, manager):
if isinstance(data, dict):
action_type = data.get('type')
if action_type is None:
raise PolicyValidationError(
"Invalid action type found in %s" % (data))
else:
action_type = data
data = {}
action_class = self.get(action_type)
if action_class is None:
raise PolicyValidationError(
"Invalid action type %s, valid actions %s" % (
action_type, list(self.keys())))
# Construct a ResourceManager
return action_class(data, manager)
[docs]class Action(object):
permissions = ()
metrics = ()
log = logging.getLogger("custodian.actions")
executor_factory = ThreadPoolExecutor
permissions = ()
schema = {'type': 'object'}
schema_alias = None
def __init__(self, data=None, manager=None, log_dir=None):
self.data = data or {}
self.manager = manager
self.log_dir = log_dir
[docs] def get_permissions(self):
return self.permissions
[docs] def validate(self):
return self
@property
def name(self):
return self.__class__.__name__.lower()
[docs] def process(self, resources):
raise NotImplementedError(
"Base action class does not implement behavior")
def _run_api(self, cmd, *args, **kw):
try:
return cmd(*args, **kw)
except ClientError as e:
if (e.response['Error']['Code'] == 'DryRunOperation' and
e.response['ResponseMetadata']['HTTPStatusCode'] == 412 and
'would have succeeded' in e.response['Error']['Message']):
return self.log.info(
"Dry run operation %s succeeded" % (
self.__class__.__name__.lower()))
raise
BaseAction = Action
[docs]class EventAction(BaseAction):
"""Actions which receive lambda event if present
"""