如何从另一个 AWS 角色代入 AWS 角色? [英] How to assume an AWS role from another AWS role?

问题描述

我有两个 AWS 账户 - 比如说 A 和 B.

I have two AWS account - lets say A and B.

在账户 B 中，我定义了一个角色，允许从账户 A 访问另一个角​​色.我们称之为角色 B

In account B, I have a role defined that allow access to another role from account A. Lets call it Role-B

{
  "Version": "2012-10-17",
  "Statement": [
  {
     "Effect": "Allow",
     "Principal": {
         "AWS": "arn:aws:iam::********:role/RoleA"
     },
    "Action": "sts:AssumeRole"
  }]
}

在账户 A 中，我定义了一个角色，允许 root 用户承担角色.让我们称之为角色-A

In account A, I have defined a role that allows the root user to assume role. Lets call it Role-A

{
  "Version": "2012-10-17",
  "Statement": [
  {
     "Effect": "Allow",
     "Principal": {
         "AWS": "arn:aws:iam::********:root"
     },
    "Action": "sts:AssumeRole"
  }]
}

角色 A 附加了以下策略

Role A has the following policy attached to it

 {
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": "sts:AssumeRole",
            "Resource": "arn:aws:iam::****:role/RoleB",
            "Effect": "Allow"
       }]
 }

作为帐户 A 中的用户，我承担了角色 A.现在使用这个临时凭证，我想承担角色 B 并访问帐户 B 拥有的资源.我有以下代码

As a user in account A, I assumed the Role-A. Now using this temporary credential, I want to assume the Role-B and access the resource owned by account B. I have the below code

client = boto3.client('sts')

firewall_role_object = client.assume_role(
    RoleArn=INTERMEDIARY_IAM_ROLE_ARN,
    RoleSessionName=str("default"),
    DurationSeconds=3600)

firewall_credentials = firewall_role_object['Credentials']

firewall_client = boto3.client(
    'sts',
    aws_access_key_id=firewall_credentials['AccessKeyId'],
    aws_secret_access_key=firewall_credentials['SecretAccessKey'],
    aws_session_token=firewall_credentials['SessionToken'], )

optimizely_role_object = firewall_client.assume_role(
    RoleArn=CUSTOMER_IAM_ROLE_ARN,
    RoleSessionName=str("default"),
    DurationSeconds=3600)

print(optimizely_role_object['Credentials'])

此代码适用于我从客户那里获得的一组角色，但不适用于我在我有权访问的两个 AWS 账户之间定义的角色.

This code works for the set of roles I got from my client but is not working for the roles I defined between two of the AWS account I have access to.

推荐答案

终于搞定了.上面的配置是正确的.政策中有拼写错误.

Finally got this working. The above configuration is correct. There was a spelling mistake in the policy.

我将这个问题保留在这里，因为它可能对想要使用角色实现双跳身份验证的人有所帮助.

I will keep this question here for it may help someone who want to achieve double hop authentication using roles.

这篇关于如何从另一个 AWS 角色代入 AWS 角色?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！