Sagemaker Studio - create domain error

Question

A customer is trying to setup Sagemaker studio. He is following our published instructions to set up using IAM: https://docs.aws.amazon.com/sagemaker/latest/dg/onboard-iam.html

But is getting an error: User:  arn:aws:iam:xxxx:user/user1 is not authorized to perform: sagemaker:CreateDomain on resource: arn:aws:sagemaker: us-east-2:xxxx:domain/yyyy

He has admin priviledges on the account and AmazonSageMakerFullAccess. We noticed that the AmazonSageMakerFullAccess policy actually has a limitation. You can perform all sagemaker actions, but not on a resource with arn “arn:aws:sagemaker:*:*:domain/*”. 
We confirmed there are no other domains in that region with the CLI as you are only allowed one – so that isn’t blocking.
And aws sagemaker list-user-profiles returns no user profiles.

Has anyone seen that error before or know the workaround? Should he create a custom policy to enable creating domains or would there be any implications of that? Are there specific permissions he should have so as to onboard using IAM?

Accepted Answer

A user with admin privileges would have access to "iam:CreateServiceLinkedRole" and "sagemaker:CreateDomain" actions, unless SCPs or permissions boundaries are involved. However, for the purpose of onboarding Amazon SageMaker Studio with limited permissions, I would grant the user least privilege by reviewing Control Access to the Amazon SageMaker API by Using Identity-based Policies and Actions, Resources, and Condition Keys for Amazon SageMaker documentation:

{
    "Effect": "Allow",
    "Action": "sagemaker:CreateDomain",
    "Resource": "arn:aws:sagemaker:<REGION>:<ACCOUNT-ID>:domain/*"
}

NOTE: An AWS account is limited to one Domain, per region, see CreateDomain.

{
    "Effect": "Allow",
    "Action": "iam:CreateServiceLinkedRole",
    "Resource": "*",
    "Condition": {
        "StringEquals": {
            "iam:AWSServiceName": "sagemaker.amazonaws.com"
        }
    }
}

Cheers!

{
        "Effect": "Allow",
        "Action": "sagemaker:CreateDomain",
        "Resource": "arn:aws:sagemaker:::domain/*"
    }

NOTE: An AWS account is limited to one Domain, per region, see [CreateDomain](https://docs.aws.amazon.com/sagemaker/latest/APIReference/API_CreateDomain.html).

{
        "Effect": "Allow",
        "Action": "iam:CreateServiceLinkedRole",
        "Resource": "*",
        "Condition": {
            "StringEquals": {
                "iam:AWSServiceName": "sagemaker.amazonaws.com"
            }
        }
    }

Cheers!

Sagemaker Studio - create domain error

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