Using tags to control access to Amazon CodeGuru Reviewer associated repositories

Conditions in IAM policy statements are part of the syntax that you can use to specify permissions to CodeGuru Reviewer associated repository-based actions. You can create a policy that allows or denies actions on associated repositories based on the tags associated with those associated repositories, and then apply those policies to the IAM groups you configure for managing users. For information about applying tags to an associated repository using the console or AWS CLI, see Add a tag to a CodeGuru Reviewer associated repository. For information about applying tags using the CodeGuru Reviewer SDK, see AssociateRepository in the Amazon CodeGuru Reviewer API Reference. For information about using tags to control access to AWS resources, see Controlling Access to AWS Resources Using Resource Tags in the IAM User Guide.

You can directly use tags on an associated repository to affect permissions on the following CodeGuru Reviewer API operations:

• AssociateRepository

• DescribeRepositoryAssociation

• DisassociateRepositoryAssociation

You can use tags on an associated repository to indirectly affect permissions on a code review that belongs to the associated repository. Use tags on an associated repository to affect permissions on the following CodeGuru Reviewer API operations that are related to code reviews:

• CreateCodeReview

• ListRecommendations

• DescribeCodeReview

Example 1: Limit CodeGuru Reviewer associated repository actions based on request tags

The following policy denies users permission to the DisassociateRepositoryAssociation action if the request contains a tag with the key ViewAssocatedRepositoryDetails and the key value DenyViewRepository. In addition, the policy prevents these unauthorized users from disassociating repositories by using the aws:TagKeys condition key to not allow DisassociationAllowed if the request contains a tag with the key DenyDisassociate. An administrator must attach this IAM policy in addition to the managed user policy to users who are not authorized to perform these actions. The aws:RequestTag condition key is used to control which tags can be passed in an IAM request

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Deny",
      "Action": [
        "codeguru-reviewer:DescribeRepositoryAssociation"
      ],
      "Resource": "*",
      "Condition": {
        "ForAnyValue:StringEquals": {
          "aws:RequestTag/ViewAssocatedRepositoryDetails": "DenyViewRepository"
        }
      }
    },
    {
      "Effect": "Deny",
      "Action": [
        "codeguru-reviewer:DisassociateRepository"
      ],
      "Resource": "*",
      "Condition": {
        "ForAnyValue:StringEquals": {
          "aws:TagKeys": ["DenyDisassociate"]
        }
      }
    }
  ]
}

Example 2: Deny or allow actions on code reviews based on their associated repository's resource tags

You can create a policy that allows or denies actions on CodeGuru Reviewer code reviews by using the CodeGuru Reviewer tags that are added to their associated repositories. An associated repository contains code reviews, and you can use tags on the associated repository to affect permissions on its code reviews. For example, you can create a policy that denies users the ability to view recommendations created by code reviews in an associated repository. The following policy denies a user with AWS account ID 123456789012 in the AWS Region us-west-2 from viewing recommendations created by code reviews in all associated repositories that have a Recommendation tag with a value of Secret.

{
  "Version": "2012-10-17",
  "Statement" : [
    {
      "Effect" : "Deny",
      "Action" : [
        "codeguru-reviewer:ListRecommendations"
       ]
      "Resource" : "arn:aws:codeguru-reviewer:us-west-2123456789012:association:*",
      "Condition" : {
         "StringEquals" : "aws:ResourceTag/Recommendations": "Secret"
        }
    }
  ]
}

Example 3: Limit all possible CodeGuru Reviewer actions to associated repositories based on resource tags

You can create policies that selectively allow CodeGuru Reviewer actions on all associated repositories that are not tagged with specific tags. For example, the following policy allows you to associate, disassociate, and view the details of associated repositories that are not tagged with the specified tags:

{
   "Version": "2012-10-17",
   "Statement": [
      {
         "Effect": "Allow",
         "Action": [
            "codeguru-reviewer:AssociateRepository",
            "codeguru-reviewer:DescribeRepositoryAssociation",
            "codeguru-reviewer:DisassociateRepositoryAssociation"
         ],
         "Resource": "*",
         "Condition": {
            "StringNotEquals": {
               "aws:ResourceTag/Status": "AssociatedRepositoryAllow",
               "aws:ResourceTag/Team": "Saanvi"
            }
         }
      }
   ]
}