awslambda.py 文件源码

def get_lambda_alias_arn(app, account, region):
    """Get lambda alias ARN. Assumes that account name is equal to alias name.

    Args:
        account (str): AWS account name.
        region (str): Region name, e.g. us-east-1
        app (str): Lambda function name

    Returns:
        str: ARN for requested lambda alias

    """
    session = boto3.Session(profile_name=account, region_name=region)
    lambda_client = session.client('lambda')

    lambda_aliases = lambda_client.list_aliases(FunctionName=app)

    matched_alias = None
    for alias in lambda_aliases['Aliases']:
        if alias['Name'] == account:
            lambda_alias_arn = alias['AliasArn']
            LOG.info('Found ARN for alias %s for function %s', account, app)
            matched_alias = lambda_alias_arn
            break
    else:
        fatal_message = 'Lambda alias {0} of function {1} not found'.format(account, app)
        LOG.fatal(fatal_message)
        raise LambdaAliasDoesNotExist(fatal_message)
    return matched_alias