Sak*_*wal 8 python amazon-web-services boto3
我正在尝试从 boto3 客户端获取策略,但没有方法可以使用策略名称来执行此操作。通过将 create_policy 方法包装在 try- except 块中,我可以检查策略是否存在。除了列出所有策略并对其进行迭代之外,还有什么方法可以使用 boto3 按名称获取策略 arn。
给定前缀(如果有的话,以及名称),ARN 应该是确定性的。
iam = session.client('iam')
sts = session.client('sts')
# Slow and costly if you have many pages
paginator = iam.get_paginator('list_policies')
all_policies = [policy for page in paginator.paginate() for policy in page['Policies']]
[policy_1] = [p for p in all_policies if p['PolicyName'] == policy_name]
# Fast and direct
account_id = sts.get_caller_identity()['Account']
policy_arn = f'arn:aws:iam::{account_id}:policy/{policy_name}'
policy_2 = iam.get_policy(PolicyArn=policy_arn)['Policy']
# They're equal except with the direct method you'll also get description field
all(policy_1[k] == policy_2[k] for k in policy_1.keys() & policy_2.keys())
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