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Fix sts credentials reusage #222

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16 changes: 14 additions & 2 deletions awslimitchecker/connectable.py
Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,7 @@ def __init__(self, creds_dict):
self.expiration = creds_dict['Credentials']['Expiration']
self.assumed_role_id = creds_dict['AssumedRoleUser']['AssumedRoleId']
self.assumed_role_arn = creds_dict['AssumedRoleUser']['Arn']
self.account_id = creds_dict['account_id']


class Connectable(object):
Expand Down Expand Up @@ -93,8 +94,15 @@ def _boto3_connection_kwargs(self):
self.region)
Connectable.credentials = self._get_sts_token()
else:
logger.debug("Reusing previous STS credentials for account %s",
self.account_id)
if self.account_id == Connectable.credentials.account_id:
logger.debug("Reusing previous STS credentials for account %s",
self.account_id)
else:
logger.debug("Previous STS credentials are for account %s", Connectable.credentials.account_id)
logger.debug("Connecting for account %s role '%s' with STS "
"(region: %s)", self.account_id, self.account_role,
self.region)
Connectable.credentials = self._get_sts_token()
kwargs['aws_access_key_id'] = Connectable.credentials.access_key
kwargs['aws_secret_access_key'] = Connectable.credentials.secret_key
kwargs['aws_session_token'] = Connectable.credentials.session_token
Expand Down Expand Up @@ -167,7 +175,11 @@ def _get_sts_token(self):
if self.mfa_token is not None:
assume_kwargs['TokenCode'] = self.mfa_token
role = sts.assume_role(**assume_kwargs)

role['account_id'] = self.account_id

creds = ConnectableCredentials(role)

logger.debug("Got STS credentials for role; access_key_id=%s",
creds.access_key)
return creds