NodeJS：aws-sdk sts.assumeRole 不工作

Question

我有一个奇怪的问题，我似乎无处可去。我已经在线学习了所有内容（多个教程等），但无法使 sts.assumeRole 正常工作。

我的设置：

AWS 主账户（用于计费、IAM 等）
子AWS账户1（已使用对于客户 1)
子AWS账户2（用于客户2）
等等

我在 子 AWS 账户 1 中有一个机器人运行，我需要来自 主 AWS 账户 的定价信息。

所以，我在 主 AWS 账户 上创建了一个角色来获得 AWS ce:* 访问权限，如下：

{
    "Version": "2012-10-17",
    "Statement": [{
            "Effect": "Allow",
            "Action": ["ce:*"],
            "Resource": ["*"]
        }]
}

信任关系

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Service": "ec2.amazonaws.com",
        "AWS": "arn:aws:iam::SubAWSaccount1-ID:role/instance-profile"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}

现在，这是附加到 子 AWS 账户 1 上的 EC2 实例运行的 实例配置文件：

"Version": "2012-10-17",
"Statement": [
    {
        "Sid": "VisualEditor1",
        "Effect": "Allow",
        "Action": "sts:AssumeRole",
        "Resource": "arn:aws:iam::mainAWSaccount-ID:role/botRole"
    }
  ]
}

信任关系

{
  "Version": "2012-10-17",
  "Statement": [
   {
    "Sid": "",
    "Effect": "Allow",
    "Principal": {
      "Service": "ec2.amazonaws.com"
    },
    "Action": "sts:AssumeRole"
   }
  ]
}

好的，不碍事，这是无效的代码：

var AWS = require('aws-sdk');
var pricingAWS = new AWS.CostExplorer();

var getPricing = function(){

    var costParams = {
        TimePeriod: { Start: "2019-12-01 ", End: "2020-01-01"},
        Granularity: 'MONTHLY',
        Metrics: ['BlendedCost'],
        Filter: {      
            Dimensions: {
                Key: "LINKED_ACCOUNT",
                Values: ["Sub AWS account 2s ID"] //Main AWS account has access to many sub accounts info. So bot in running on Sub account 1, I need info from Sub account 1, 2, 3 etc and Role is on Main account
            }
        }
    };

    var roleToAssume = {
        RoleArn: 'arn:aws:iam::mainAWSaccount-ID:role/botRole',
        RoleSessionName: 'testTestTest',
        DurationSeconds: 900
    };

    var roleCreds = {};

    sts.assumeRole(roleToAssume, function(err, data) {
        if (err) {
            console.log(err);
        } else {
            roleCreds = {
                accessKeyId: data.Credentials.AccessKeyId,
                secretAccessKey: data.Credentials.SecretAccessKey,
                sessionToken: data.Credentials.SessionToken
            };

            pricingAWS.config.update({
                accessKeyId: roleCreds.AccessKeyId,
                secretAccessKey: roleCreds.SecretAccessKey,
                sessionToken: roleCreds.SessionToken
              });
        }
    });

    pricingAWS.getCostAndUsage(costParams, function (err, data) {
        if (err) {
            reject(err);
        }else{
            resolve(data);
        }
    });
};

getPricing();

我从 console.log(err) 得到的是：

User: arn:aws:sts::SubAWSAccount-1:assumed-role/slack-instance-profile/instanceID is not authorized to perform: ce:GetCostAndUsage on resource: arn:aws:ce:us-east-1:SubAWSAccount-1:/GetCostAndUsage'

Answer 1

为了确认我的理解，您正在尝试从另一个帐户中的 ec2 实例中担任一个帐户中的角色。

在 child 账户中创建一个 IAM 角色
通过附加 IAM 策略，允许上面新创建的角色承担 main 帐户中存在的角色。通过主要角色的信任策略允许子角色承担主要角色（您已经这样做了）
在您的 Nodejs 代码中运行在子 ec2 实例中，承担父角色并阅读账单报告（您已经这样做了）

代码修复

将 pricingAWS.getCostAndUsage() 行移动到 assume role 回调中。因为在更新凭据之前调用了该行:)。您还可以将所有内容更改为 async/await，如下所示。

import AWS = require('aws-sdk');
var pricingAWS = new AWS.CostExplorer();
const sts = new AWS.STS()

var getPricing = async function () {

  var costParams = {
    TimePeriod: { Start: "2019-12-01 ", End: "2020-01-01" },
    Granularity: 'MONTHLY',
    Metrics: ['BlendedCost'],
    Filter: {
      Dimensions: {
        Key: "LINKED_ACCOUNT",
        Values: ["Sub AWS account 2s ID"] //Main AWS account has access to many sub accounts info. So bot in running on Sub account 1, I need info from Sub account 1, 2, 3 etc and Role is on Main account
      }
    }
  };

  var roleToAssume = {
    RoleArn: 'arn:aws:iam::mainAWSaccount-ID:role/botRole',
    RoleSessionName: 'testTestTest',
    DurationSeconds: 900
  };

  var roleCreds = {};


  try {

    const data = await sts.assumeRole(roleToAssume).promise();
    const roleCreds = {
      accessKeyId: data.Credentials.AccessKeyId,
      secretAccessKey: data.Credentials.SecretAccessKey,
      sessionToken: data.Credentials.SessionToken
    };

    pricingAWS.config.update({
      accessKeyId: roleCreds.accessKeyId,
      secretAccessKey: roleCreds.secretAccessKey,
      sessionToken: roleCreds.sessionToken
    });

    const costAndUsage = await pricingAWS.getCostAndUsage(costParams).promise()
    return costAndUsage
  } catch (err) {
    console.log('error: ', err);
    throw err;
  }

};

getPricing();

希望这对您有所帮助。

NodeJS：aws-sdk sts.assumeRole 不工作

NodeJS: aws-sdk sts.assumeRole is not working

amazon-web-services

node.js

aws-sdk-nodejs

assume-role

代码修复