Terraform上的AWS Lambda VPC

使用terraform 0.9.3创建AWS Lambda函数时，我无法加入我选择的VPC .

这是我的函数的样子：

resource "aws_lambda_function" "lambda_function" {
   s3_bucket        = "${var.s3_bucket}"
   s3_key           = "${var.s3_key}"
   function_name    = "${var.function_name}"
   role             = "${var.role_arn}"
   handler          = "${var.handler}"

   runtime          = "${var.runtime}"
   timeout          = "30"
   memory_size      = 256
   publish          = true

   vpc_config {
       subnet_ids = ["${var.subnet_ids}"]
       security_group_ids = ["${var.security_group_ids}"]
   }
 }

我用于角色的政策是

data "aws_iam_policy_document" "lambda-policy_policy_document" {
       statement {
            effect = "Allow"
            actions = [
            "ec2:DescribeSecurityGroups",
            "ec2:DescribeSubnets",
            "ec2:DescribeVpcs",
            "logs:CreateLogGroup",
            "logs:CreateLogStream",
            "logs:PutLogEvents",
            "ec2:CreateNetworkInterface",
            "ec2:DescribeNetworkInterfaces",
            "ec2:DeleteNetworkInterface"
        ]
        resources = ["*"]
     }
 }

资源创建得很好，如果我尝试通过AWS控制台添加VPC和子网，那一切都可以解决 .

更新（创建计划）：

module.******.aws_lambda_function.lambda_function
arn:                                 "<computed>"
environment.#:                       "1"
environment.0.variables.%:           "1"
environment.0.variables.environment: "******"
function_name:                       "******"
handler:                             "******"
last_modified:                       "<computed>"
memory_size:                         "256"
publish:                             "true"
qualified_arn:                       "<computed>"
role:                                "******"
runtime:                             "******"
s3_bucket:                           "******"
s3_key:                              "******"
source_code_hash:                    "<computed>"
timeout:                             "30"
version:                             "<computed>"
vpc_config.#:                        "1"
vpc_config.0.vpc_id:                 "<computed>"

但是，如果我再次运行terraform计划，则VPC配置始终会更改 .

vpc_config.#: "0" => "1" (forces new resource)