lambda 承担角色空结果

Question

我正在尝试使用账户 A 中的 Lambda 从账户 B 获取 EC2 实例。不确定我缺少什么。

账户 A：Lambda 代码是运行。账户 B：EC2 实例为运行。下面的 Assume Role 会打印访问密钥和会话令牌 ID，但不会 return 任何结果。

账户 B 中的 IAM 角色附加了 AmazonEC2ReadOnlyAccess 策略并且信任关系具有 arn:aws:iam::ACCOUNT_A:role/role-name_ACCOUNT_A

这是代码：

import json
import boto3
from collections import OrderedDict
from pprint import pprint
import time
from time import sleep
from datetime import date
import datetime
def lambda_handler(event, context):
    # Assume Role To connect to other Account
    sts_connection = boto3.client('sts')
    acct_b = sts_connection.assume_role(
        RoleArn="arn:aws:iam::ACCOUNT_B:role/role_name_account_B",
        RoleSessionName="cross_acct_lambda"
    )
    
    ACCESS_KEY = acct_b['Credentials']['AccessKeyId']
    SECRET_KEY = acct_b['Credentials']['SecretAccessKey']
    SESSION_TOKEN = acct_b['Credentials']['SessionToken']
    # create service client using the assumed role credentials, e.g. S3
    ec2 = boto3.client(
        "ec2",
        aws_access_key_id=ACCESS_KEY,
        aws_secret_access_key=SECRET_KEY,
        aws_session_token=SESSION_TOKEN,
    )
    status = ec2.describe_instance_status()
    pprint(status)
    return {
        'statusCode': 200,
        'body': json.dumps('Hello from Lambda!')
    }

结果：

Response:
{
  "statusCode": 200,
  "body": "\"Hello from Lambda!\""
}

结果：

Response:
{
  "statusCode": 200,
  "body": "\"Hello from Lambda!\""
}

Request ID:
"ZZZZZZZZZZZZZZZZZZZZ"

函数日志：

START RequestId: ZZZZZZZZZZZZZZZZZZ Version: $LATEST
{'InstanceStatuses': [],

谢谢。

Answer 1

添加区域后我可以看到结果，感谢 John Rotenstein 和 Jarmod 的指导。

lambda 承担角色空结果

lambda assume role empty results

amazon-ec2

amazon-web-services

aws-lambda

assume-role