The example launches ECS in VPC, vswitch_id parameter is the vswitch id from VPC. It also create disk, and attached the disk on ECS. The variables.tf can let you create specify parameter instances, such as image_id, ecs_type, count etc.

• Planning phase

    terraform plan 
    	var.availability_zones
    		Enter a value: {var.availability_zones}  /*cn-beijing-b*/
    	var.datacenter
    		Enter a value: {datacenter}
    	var.vswitch_id
    		Enter a value: {vswitch_id}
    	....
  

• Apply phase

    terraform apply 
        var.availability_zones
    		Enter a value: {var.availability_zones}  /*cn-beijing-b*/
    	var.datacenter
    		Enter a value: {datacenter}
    	var.vswitch_id
    		Enter a value: {vswitch_id}
    	....
  

• Destroy

    terraform destroy