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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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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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