# 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.
from __future__ import absolute_import, division, print_function, unicode_literals
import abc
import six
from c7n.registry import PluginRegistry
clouds = PluginRegistry('c7n.providers')
[docs]@six.add_metaclass(abc.ABCMeta)
class Provider(object):
"""Provider Base Class"""
@abc.abstractproperty
def resources(self):
"""resources registry for this cloud provider"""
@abc.abstractproperty
def resource_prefix(self):
"""resource prefix for this cloud provider in policy files."""
[docs] @abc.abstractmethod
def initialize(self, options):
"""Perform any provider specific initialization
"""
[docs] @abc.abstractmethod
def initialize_policies(self, policy_collection, options):
"""Perform any initialization of policies.
Common usage is expanding policy collection for per
region execution and filtering policies for applicable regions.
"""
[docs] @abc.abstractmethod
def get_session_factory(self, options):
"""Get a credential/session factory for api usage."""
[docs]def resources(cloud_provider=None):
results = {}
for cname, ctype in clouds.items():
if cloud_provider and cname != cloud_provider:
continue
for rname, rtype in ctype.resources.items():
results['%s.%s' % (cname, rname)] = rtype
return results