조만간 기존 EC2에 IAM 롤을 붙여 보았다

aws --profile waka --region ap-northeast-1 ec2 associate-iam-instance-profile --instance-id i-XXXXXXXXXXXXXXXXX --iam-instance-profile Name=role_waka

aws --profile waka --region ap-northeast-1 ec2 describe-iam-instance-profile-associations

{
    "IamInstanceProfileAssociations": [
        {
            "InstanceId": "i-XXXXXXXXXXXXXXXXX",
            "State": "associated",
            "AssociationId": "iip-assoc-XXXXXXXXXXXXXXXXX",
            "IamInstanceProfile": {
                "Id": "XXXXXXXXXXXXXXXXXXXXX",
                "Arn": "arn:aws:iam::XXXXXXXXXXXX:instance-profile/role_waka"
            }
        }
    ]
}