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node.js - NodeJS：aws-sdk sts.assumeRole无法正常工作

发布于 2020-03-27 16:16:40

我有一个奇怪的问题，我似乎无处可去。我已经在线上关注了所有内容（有多个教程等），但是无法使sts.assumeRole正常工作。

我的设置：

AWS主账户（用于计费，IAM等）
次级AWS账户1（用于客户1）
次级AWS账户2（用于客户2）
等等

我有一个机器人在Sub AWS账户1中运行，我需要从Main AWS账户获取价格信息。

因此，我在主AWS账户上创建了一个角色，以具有以下AWS ce：*访问权限：

{
    "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"
    }
  ]
}

Now, this is the instance-profile attached to the EC2 instance running on the Sub AWS account 1:

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

Trust relationship

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

Okay, that being out of the way, this is the code that is not working:

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();

What I get from the console.log(err)is:

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'

提问者

Shayan Khan

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Arun K 2020-02-04 18:51

to confirm my understanding, you are trying to assume a role in one account from an ec2 instance in another account.

create an IAM role in the child account
allow the newly created role above to assume the role exists in the main account by attaching an IAM policy. Allow the child role to assume the main role via the main role's trust policy (you are doing this already)
在子ec2实例中运行的Nodejs代码中，担任父角色并阅读帐单报告（您已经在执行此操作）

代码修复

将pricingAWS.getCostAndUsage()行移到承担角色回调中。因为该行是在更新凭据之前调用的：)。您还可以将所有内容更改为异步/等待，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();

希望这可以帮助。

Shayan Khan 2020-01-31 20:38:44

好吧，我会检查一下。谢啦

Shayan Khan 2020-02-03 15:19:19

没用实际上，由于该AWS账户下的该角色不存在，IAM出错了

Arun K 2020-02-04 04:46:11

抱歉，我现在得到了问题。我没有意识到您是直接将主要帐户角色分配给ec2实例配置文件。我会检查并告知您/

Arun K 2020-02-04 05:02:54

更新了我的答案

Arun K 2020-02-05 17:03:22

乐意效劳。干杯！！！

node.js - NodeJS：aws-sdk sts.assumeRole无法正常工作

代码修复

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