英文:
How to give permission to an IAM group in S3 Bucket policy
问题
我想能够在策略中指定一个 IAM 组作为主体，但我已经阅读到你不能在基于资源的策略中指定 IAM 组。我可能可以添加一个 IAM 用户列表，但那样我的策略会看起来很混乱。如果我不能在我的策略中添加 IAM 组 ARN 作为主体，那么最佳方法是什么？
英文:
I want to be able to specify an iam group as the principal within my policy but i have been reading that you cannot specify an iam group as part of a resource based policy. I could potentially add in a list of iam users but then my policy would look really messy. What is the best approach to take if i cannot add an iam group arn as the principal within my policy.
答案1
得分: 1
如果您无法在资源基础策略中指定IAM组作为主体，您有几个选择：
-
直接将策略附加到IAM用户：在这种情况下，您需要在策略中指定每个IAM用户的ARN。随着IAM用户数量的增加，这种方法可能变得混乱且难以管理。
-
使用IAM角色：IAM角色是一种向在AWS上运行的AWS服务或应用程序授予权限的方法。您可以创建一个IAM角色，可以由IAM用户或IAM组承担。然后，您可以在策略中指定IAM角色，而不是IAM用户或IAM组。这种方法提供了一种更清晰且更可扩展的权限管理方式。
-
使用服务控制策略（SCP）：SCP是一种用于为AWS账户设置权限边界的策略类型。您可以使用SCP允许或拒绝IAM组、IAM用户或IAM角色访问AWS服务。这使您能够以集中且有组织的方式管理多个用户的权限。
我建议选择2或3作为最佳方法，因为它们相对于在策略中指定单个IAM用户ARN提供了更清晰且更可扩展的权限管理方式。
英文:
If you cannot specify an IAM group as the principal in a resource-based policy, you have a few options:
-
Attach the policy directly to the IAM users: In this case, you would
need to specify each IAM user ARN in the policy. This approach can
quickly become messy and difficult to manage as the number of IAM
users grows. -
Use an IAM role: An IAM role is a way to grant permissions to AWS
services or applications that run on AWS. You can create an IAM role
that can be assumed by IAM users or IAM groups. You can then specify
the IAM role in the policy instead of the IAM users or IAM groups.
This approach provides a cleaner and more scalable way to manage
permissions. -
Use a service control policy (SCP): An SCP is a type of policy that
is used to set permissions boundaries for an AWS account. You can
use an SCP to allow or deny access to AWS services for IAM groups,
IAM users, or IAM roles. This allows you to manage permissions for
multiple users in a centralized and organized manner.
I would recommend option 2 or 3 as the best approach, as they provide a cleaner and more scalable way to manage permissions compared to specifying individual IAM user ARNs in the policy.
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