amazon-web-services - 如何在 VPC 中为 AWS Lambda 设置 IAM 策略以解决错误“您无权执行：CreateNetworkInterface。”

Question

我正在尝试设置我的 Lambda 以访问我Mongo server的EC2 instances in VPC. 选择所有subnetsand后security groups，保存时出现以下错误“您无权执行：CreateNetworkInterface。 ”

我相信，我需要某种策略设置AWS IAM来允许这样做。

我有“AdministratorAccess”，我正在尝试将 IAM 角色添加到我的帐户。

有谁知道policy/role我需要什么？

Answer 1

明白了！！！如果错误消息显示“此Lambda 函数无权执行：CreateNetworkInterface”，那么需要使用适当的策略修改 Lambda 角色会更有意义。通过将策略添加到 Lambda 使用的角色来解决问题：

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

Answer 2

有必要为 lambda 提供策略操作：

NetworkLambdaRole:
 Type: "AWS::IAM::Role"
 Properties:
   RoleName: "Network-Lambda-Role"
   AssumeRolePolicyDocument:
     Version: '2012-10-17'
     Statement:
     -
       Effect: "Allow"
       Principal:
         Service:
         - "lambda.amazonaws.com"
       Action:
       - "sts:AssumeRole"
   Policies:
   - PolicyName: "network-lambda-role-policy"
     PolicyDocument:
       Version: '2012-10-17'
       Statement:
       - Effect: "Allow"
         Action: [
           "ec2:DescribeInstances",
           "ec2:CreateNetworkInterface",
           "ec2:AttachNetworkInterface",
           "ec2:DescribeNetworkInterfaces",
           "ec2:DeleteNetworkInterface"
         ]
         Resource: "*"

注意：blueskin 的回答缺少政策ec2:DeleteNetworkInterfaces