Question

Your team has a Code Commit repository in your account.  You need to give developers in another account access to your Code Commit repository. Which of the following is the most effective way to grant access?

A. Create IAM users for each developer and provide access to the repository

B. Create an IAM Group , add the IAM users and then provide access to the repository

C. Create a cross account role , give the role the privileges. Provide the role ARN to the developers.

D. Enable public access for the repository.

Answer 1

Option C, creating a cross-account role, is the recommended and most effective option. The cross-account role allows users in another AWS account to assume the role and access the repository with the necessary permissions. This approach provides a secure and centralized way to manage access to the Code Commit repository, and it eliminates the need for managing individual IAM users or groups.

To implement this solution, follow these steps:

1. Create a new IAM role in the AWS account where the Code Commit repository exists.
2. Define the necessary permissions for the role, including access to the Code Commit repository.
3. Add a trust policy to the role, allowing users in the other AWS account to assume the role.
4. Share the role ARN with the developers in the other AWS account.
5. In the other AWS account, create an IAM user or group, and grant permission to assume the cross-account role.
6. Developers can then assume the cross-account role and access the Code Commit repository with the necessary permissions