text: variable "foo" {
         default = "bar"
      description =     "bar"
  }
  
  developer = [     "fatih",       "arslan"]
  
  provider "aws" {
                              access_key ="foo"
       secret_key =         "bar"
  }
  
            provider "do" {
    api_key = "${var.foo}"
  }
  
  resource "aws_security_group" "firewall" {
            count = 5
        }
  
      resource aws_instance "web" {
        ami = "${var.foo}"
             security_groups = [
              "foo",
              "${aws_security_group.firewall.foo}"
                    ]
  
             network_interface {
                   device_index = 0
                      description = "Main network interface"
          }
  
             network_interface = {
                   device_index = 1
                      description = <<EOF
  ANOTHER NETWORK INTERFACE
  EOF
          }
      }
  
  resource "aws_instance" "db" {
          security_groups = "${aws_security_group.firewall.*.id}"
      VPC = "foo"
  
      depends_on = ["aws_instance.web"]
  }
  
  output "web_ip" {
  
      value=<<EOF
  TUBES
  EOF
  }
  