Toolset to render and manage AWS CloudFormation ( https://pypi.org/project/cloudbender )
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

64 lines
2.2 KiB

import os
import time
import boto3
import botocore.session
from botocore import credentials
import logging
logger = logging.getLogger(__name__)
class BotoConnection():
_sessions = {}
_clients = {}
def __init__(self, profile=None, region=None):
self.region = region
self.profile = profile
def _get_session(self, profile=None, region=None):
if self._sessions.get((profile, region)):
return self._sessions[(profile, region)]
# Construct botocore session with cache
# Setup boto to cache STS tokens for MFA
# Change the cache path from the default of ~/.aws/boto/cache to the one used by awscli
session_vars = {}
if profile:
session_vars['profile'] = (None, None, profile, None)
if region and region != 'global':
session_vars['region'] = (None, None, region, None)
session = botocore.session.Session(session_vars=session_vars)
cli_cache = os.path.join(os.path.expanduser('~'), '.aws/cli/cache')
session.get_component('credential_provider').get_provider('assume-role').cache = credentials.JSONFileCache(cli_cache)
self._sessions[(profile, region)] = session
return session
def _get_client(self, service, profile=None, region=None):
if self._clients.get((profile, region, service)):
return self._clients[(profile, region, service)]
session = self._get_session(profile, region)
client = boto3.Session(botocore_session=session).client(service)
self._clients[(profile, region, service)] = client
return client
def call(self, service, command, kwargs={}, profile=None, region=None):
while True:
try:
client = self._get_client(service, profile, region)
return getattr(client, command)(**kwargs)
except botocore.exceptions.ClientError as e:
if e.response['Error']['Code'] == 'Throttling':
logger.warning("Throttling exception occured during {} - retry after 3s".format(command))
time.sleep(3)
pass
else:
raise e