AWS: Denies access to AWS based on the requested Region

• https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_examples_aws_deny-requested-region.html

Official AWS policy

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "DenyAllOutsideRequestedRegions",
            "Effect": "Deny",
            "NotAction": [
                "cloudfront:*",
                "iam:*",
                "route53:*",
                "support:*"
            ],
            "Resource": "*",
            "Condition": {
                "StringNotEquals": {
                    "aws:RequestedRegion": [
                        "eu-central-1",
                        "eu-west-1",
                        "eu-west-2",
                        "eu-west-3"
                    ]
                }
            }
        }
    ]
}

Example for 1 region using Action instead of NotAction

 {
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "DenyAllOutsideRequestedRegions",
            "Effect": "Deny",
            "Action": "*",
            "Resource": "*",
            "Condition": {
                "StringNotEquals": {
                    "aws:RequestedRegion": [
                        "us-east-1",
                    ]
                }
            }
        }
    ]
}

See also

• Terraform resource: aws_iam_policy, AmazonECSTaskExecutionRolePolicy
• AWS policies: managed policies, AWS trust policy, AWS Service Control Policy (SCP), Resource-based policies, Identity-based policies, "Resource":, Job function, AWS Policy Generator, s3:, lambda:, cloudwatch:
• Amazon regions, Cross-region, Global View, aws account disable-region