Terraform:Create an ECS instance

Procedure

1. Create a virtual private cloud (VPC) and a vSwitch.

   1. Create the terraform.tf file, enter the following content, and then save the file to the current working directory.

      variable "region" {
        default = "cn-beijing"
      }
      
      variable "instance_type" {
        default = "ecs.n4.large"
      }
      
      provider "alicloud" {
        region = var.region
      }
      
      data "alicloud_zones" "default" {
        available_disk_category     = "cloud_efficiency"
        available_resource_creation = "VSwitch"
        available_instance_type     = var.instance_type
      }
      
      resource "alicloud_vpc" "vpc" {
        vpc_name   = "tf_test_foo"
        cidr_block = "172.16.0.0/12"
      }
      
      resource "alicloud_vswitch" "vsw" {
        vpc_id     = alicloud_vpc.vpc.id
        cidr_block = "172.16.0.0/21"
        zone_id    = data.alicloud_zones.default.zones.0.id
      }

   2. Run the terraform init command for initialization.

   3. Run the terraform apply command to create the VPC and vSwitch.

   4. Run the terraform show command to view the created VPC and vSwitch.

      You can also log on to the VPC console to view the attributes of the VPC and vSwitch.

2. Create a security group for the VPC and add a security group rule to allow access from all IP addresses.

   1. In the terraform.tf file, add the following content:

      resource "alicloud_security_group" "default" {
        security_group_name = "default"
        vpc_id              = alicloud_vpc.vpc.id
      }
      
      resource "alicloud_security_group_rule" "allow_all_tcp" {
        type              = "ingress"
        ip_protocol       = "tcp"
        nic_type          = "intranet"
        policy            = "accept"
        port_range        = "1/65535"
        priority          = 1
        security_group_id = alicloud_security_group.default.id
        cidr_ip           = "0.0.0.0/0"
      }

   2. Run the terraform apply command to create the security group and security group rule.

   3. Run the terraform show command to view the created security group and security group rule.

      You can also log on to the ECS console to view the security group and security group rule.

3. Create an ECS instance.

   1. In the terraform.tf file, add the following content:

      resource "alicloud_instance" "instance" {
        # cn-beijing
        availability_zone = data.alicloud_zones.default.zones.0.id
        security_groups   = alicloud_security_group.default.*.id
        # series III
        instance_type              = var.instance_type
        system_disk_category       = "cloud_efficiency"
        image_id                   = var.image_id
        instance_name              = "test_foo"
        vswitch_id                 = alicloud_vswitch.vsw.id
        internet_max_bandwidth_out = 10
      }
      
      output "public_ip" {
          value = alicloud_instance.instance.public_ip
      }

      Note

      • In the preceding code, the internet_max_bandwidth_out parameter is set to 10. In this case, the system assigns a public IP address to the ECS instance and returns the assigned public IP address in the output element.

      • For information about the descriptions of the parameters, see Parameter descriptions.

   2. Run the terraform apply command to create the ECS instance.

   3. Run the terraform show command to view the created ECS instance.

   4. Run the ssh root@<Public IP address of the ECS instance> command and enter the configured password to connect to the ECS instance.