AWS Lambda:提供的执行角色无权调用 EC2 上的 DescribeNetworkInterfaces [英] AWS Lambda:The provided execution role does not have permissions to call DescribeNetworkInterfaces on EC2

问题描述

今天我有一个新的 AWS Lambda 问题，在 Google 中找不到任何地方.

Today I have a new AWS Lambda question, and can't find anywhere in Google.

我新建了一个 Lambda 函数，毫无疑问.但是当我在这个函数中输入任何代码时[例如.console.log();] 并点击保存"，出现错误:提供的执行角色无权在 EC2 上调用 DescribeNetworkInterfaces"

I new a Lambda function, there is no question. But when I input any code in this function[eg. console.log();] and click "Save", error is occured: "The provided execution role does not have permissions to call DescribeNetworkInterfaces on EC2"

exports.handler = (event, context, callback) => {
    callback(null, 'Hello from Lambda');
    console.log();  // here is my code   
}; 

我将函数与角色绑定:lambda_excute_execution(Policy:AmazonElasticTranscoderFullAccess)而且这个函数现在没有绑定任何触发器.

I bound the function with Role: lambda_excute_execution(Policy:AmazonElasticTranscoderFullAccess) And this function is not bound with any triggers now.

然后，我给角色AdministratorAccess"策略，我可以正确保存我的源代码.

And then, I give the role "AdministratorAccess" Policy, I can save my source code correctly.

此角色可以在今天之前成功运行 Functions.

This role can run Functions successfully before today.

有人知道这个错误吗?

非常感谢！

推荐答案

如果您尝试在 VPC 中部署 Lambda 而没有为其提供所需的网络接口相关权限，则此错误很常见ec2:DescribeNetworkInterfaces、ec2:CreateNetworkInterface 和 ec2:DeleteNetworkInterface(参见 AWS 论坛).

This error is common if you try to deploy a Lambda in a VPC without giving it the required network interface related permissions ec2:DescribeNetworkInterfaces, ec2:CreateNetworkInterface, and ec2:DeleteNetworkInterface (see AWS Forum).

例如，这是一个允许将 Lambda 部署到 VPC 的策略:

For example, this a policy that allows to deploy a Lambda into a VPC:

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "ec2:DescribeNetworkInterfaces",
        "ec2:CreateNetworkInterface",
        "ec2:DeleteNetworkInterface",
        "ec2:DescribeInstances",
        "ec2:AttachNetworkInterface"
      ],
      "Resource": "*"
    }
  ]
}

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