terraform用module创建EC2实例

可以使用 Terraform 的 EC2 模块来创建 EC2 实例。以下是一个示例：

1. 首先，在 main.tf 文件中定义一个 EC2 实例模块，例如：

module "ec2_instance" {
  source = "terraform-aws-modules/ec2-instance/aws"
  version = "~> 2.0"

  name = "example-instance"
  instance_count = 1
  ami = "ami-0c55b159cbfafe1f0"
  instance_type = "t2.micro"
  key_name = "example-key"
  subnet_id = "subnet-1234567890abcdef0"
  vpc_security_group_ids = ["sg-1234567890abcdef0"]
  tags = {
    Terraform   = "true"
    Environment = "dev"
  }
}

2. 在 variables.tf 文件中定义所需的变量，例如：

variable "name" {
  description = "The name of the EC2 instance"
  type        = string
}

variable "instance_count" {
  description = "The number of EC2 instances to launch"
  type        = number
}

variable "ami" {
  description = "The ID of the AMI to use for the EC2 instances"
  type        = string
}

variable "instance_type" {
  description = "The instance type to use for the EC2 instances"
  type        = string
}

variable "key_name" {
  description = "The name of the key pair to use for the EC2 instances"
  type        = string
}

variable "subnet_id" {
  description = "The ID of the subnet in which to launch the EC2 instances"
  type        = string
}

variable "vpc_security_group_ids" {
  description = "The IDs of the security groups to associate with the EC2 instances"
  type        = list(string)
}

variable "tags" {
  description = "A map of tags to apply to the EC2 instances"
  type        = map(string)
}

3. 运行 `terraform init` 命令初始化 Terraform 配置。

4. 运行 `terraform apply` 命令创建 EC2 实例模块。

以上就是使用 Terraform 的 EC2 模块创建 EC2 实例的基本步骤。你可以根据自己的需求进行修改。