问题
我有一个IAM用户和一个IAM角色。我正在尝试将IAM用户配置为具有使用STS承担IAM角色的权限。我不确定为什么会收到“访问被拒绝”错误。
详细信息
IAM角色:arn:aws:iam::123456789:role/athena_access
IAM用户:arn:aws:iam::123456789:user/athena-external-user
允许角色扮演的IAM用户策略:
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "StsAssumeRole",
"Effect": "Allow",
"Action": "sts:*",
"Resource": "arn:aws:iam::123456789:role/athena_access"
}
]
}
代码:
import boto3
os.environ['AWS_ACCESS_KEY_ID'] = '...'
os.environ['AWS_SECRET_ACCESS_KEY'] = '...'
client = boto3.client('sts')
role_to_assume_arn='arn:aws:iam::123456789:role/athena_access'
role_session_name='test_session'
response=client.assume_role(
RoleArn=role_to_assume_arn,
RoleSessionName=role_session_name
)
错误:
botocore.exceptions.ClientError:调用AssumeRole操作时发生错误(AccessDenied):用户:arn:aws:iam :: 123456789:user / athena-external-user无权执行:sts:AssumeRole on resource :arn:aws:iam :: 123456789:role / athena_access
答案 0 :(得分:0)
当然,我在发布问题后不久就找到了解决方案。
IAM角色需要为将承担该角色的用户制定一个TrustRelationship策略。
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": "ec2.amazonaws.com",
"AWS": "arn:aws:iam::123456789:user/athena-external-user"
},
"Action": "sts:AssumeRole"
}
]
}