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Boto3 Management Session with Refreshable Assume Role
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| from os import getenv | |
| from boto3 import Session | |
| from util import make_refreshable_assume_role_session | |
| def example(): | |
| management_session = Session(aws_access_key_id=getenv('AWS_ACCESS_KEY_ID'), | |
| aws_secret_access_key=getenv('AWS_SECRET_ACCESS_KEY')) | |
| assume_role_params = dict( | |
| RoleArn=getenv('AWS_ROLE_ARN'), | |
| RoleSessionName='ExampleSessionName', | |
| ) | |
| assumed_session = make_refreshable_assume_role_session(management_session, assume_role_params) | |
| print(assumed_session.client('sts').get_caller_identity()) | |
| if __name__ == '__main__': | |
| example() |
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| MIT License | |
| Copyright (c) 2018 Jasper van Wanrooy | |
| Permission is hereby granted, free of charge, to any person obtaining a copy | |
| of this software and associated documentation files (the "Software"), to deal | |
| in the Software without restriction, including without limitation the rights | |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| copies of the Software, and to permit persons to whom the Software is | |
| furnished to do so, subject to the following conditions: | |
| The above copyright notice and this permission notice shall be included in all | |
| copies or substantial portions of the Software. | |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| SOFTWARE. |
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| from boto3 import Session | |
| from botocore.credentials import CredentialProvider, CredentialResolver, Credentials, \ | |
| RefreshableCredentials, create_assume_role_refresher | |
| from botocore.session import get_session | |
| def make_refreshable_assume_role_session(management_session: Session, assume_role_params: dict) -> Session: | |
| provider = ManagementSessionWithRefreshableAssumeRoleProvider(management_session, assume_role_params) | |
| resolver = CredentialResolver(providers=[provider]) | |
| botocore_session = get_session() | |
| botocore_session.register_component('credential_provider', resolver) | |
| return Session(botocore_session=botocore_session, region_name=management_session.region_name) | |
| class ManagementSessionWithRefreshableAssumeRoleProvider(CredentialProvider): | |
| METHOD = 'management-assume-role' | |
| def __init__(self, management_session: Session, assume_role_params: dict): | |
| assert isinstance(management_session, Session) | |
| self._management_session = management_session | |
| assert isinstance(assume_role_params, dict) | |
| self._assume_role_params = assume_role_params | |
| super().__init__() | |
| def load(self) -> Credentials: | |
| refresh = create_assume_role_refresher(self._management_session.client('sts'), | |
| self._assume_role_params) | |
| return RefreshableCredentials.create_from_metadata( | |
| metadata=refresh(), | |
| refresh_using=refresh, | |
| method=self.METHOD) |
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