main.tf

# variables

variable "environment" {
  default = "eastus"
}

variable "location" {
  default = "eastus"
}

variable "prefix" {
  default = "alvaro"
}
variable "ARM_SUBSCRIPTION_ID" {
  description = "The Azure subscription ID"
}

variable "ARM_CLIENT_ID" {
  description = "The Azure client ID"
}

variable "ARM_CLIENT_SECRET" {
  description = "The Azure secret access key"
}

variable "ARM_TENANT_ID" {
  description = "The Azure tenant ID"
}

# Configure the Microsoft Azure Provider
provider "azurerm" {
  subscription_id = "${var.ARM_SUBSCRIPTION_ID}"
  client_id       = "${var.ARM_CLIENT_ID}"
  client_secret   = "${var.ARM_CLIENT_SECRET}"
  tenant_id       = "${var.ARM_TENANT_ID}"
}


# Application Gateway public IP 
resource "azurerm_public_ip" "ag_pubip" {
  name                = "${var.environment}-AG-PublicIP"
  location            = "${var.location}"
  resource_group_name = "${azurerm_resource_group.rg.name}"
  allocation_method   = "Dynamic"
  sku                 = "Basic"
  domain_name_label   = "${lower(var.environment)}-control"
}

data "azurerm_public_ip" "ag_pubip" {
  name                = "${azurerm_public_ip.ag_pubip.name}"
  resource_group_name = "${azurerm_resource_group.rg.name}"
}

output "data_ag_pubip" {
  value = "${data.azurerm_public_ip.ag_pubip.ip_address}"
}

# Create a resource group if it does not exist
resource "azurerm_resource_group" "rg" {
  name     = "${var.prefix}ResourceGroup"
  location = "${var.location}"

  tags {
    environment = "${var.prefix} Terraform Demo"
  }
}

resource "azurerm_lb" "test" {
  name                = "TestLoadBalancer"
  location            = "${var.location}"
  resource_group_name = "${azurerm_resource_group.rg.name}"

  frontend_ip_configuration {
    name                 = "PublicIPAddress"
    public_ip_address_id = "${azurerm_public_ip.ag_pubip.id}"
  }
}