main.tf

# Configure the Microsoft Azure Provider
provider "azurerm" {
}

variable "echostatement" {
  type = string
  description = "echo statment"
  default = "hello daniel"
}

# Create a resource group if it doesn’t exist
resource "azurerm_resource_group" "myterraformgroup" {
    name     = "myResourceGroup"
    location = "eastus"

    tags = {
        environment = "Terraform Demo"
    }
}

# Create virtual network
resource "azurerm_virtual_network" "myterraformnetwork" {
    name                = "myVnet"
    address_space       = ["10.0.0.0/16"]
    location            = "eastus"
    resource_group_name = "${azurerm_resource_group.myterraformgroup.name}"

    tags = {
        environment = "Terraform Demo"
    }
}

# Create subnet
resource "azurerm_subnet" "myterraformsubnet" {
    name                 = "mySubnet"
    resource_group_name  = "${azurerm_resource_group.myterraformgroup.name}"
    virtual_network_name = "${azurerm_virtual_network.myterraformnetwork.name}"
    address_prefix       = "10.0.1.0/24"
}

# Create public IPs
resource "azurerm_public_ip" "myterraformpublicip" {
    name                         = "myPublicIP"
    location                     = "eastus"
    resource_group_name          = "${azurerm_resource_group.myterraformgroup.name}"
    allocation_method            = "Dynamic"

    tags = {
        environment = "Terraform Demo"
    }
}

output "ip" {
    value = "${azurerm_public_ip.myterraformpublicip.ip_address}"
}

# Create Network Security Group and rule
resource "azurerm_network_security_group" "myterraformnsg" {
    name                = "myNetworkSecurityGroup"
    location            = "eastus"
    resource_group_name = "${azurerm_resource_group.myterraformgroup.name}"

    security_rule {
        name                       = "ALL"
        priority                   = 100
        direction                  = "Outbound"
        access                     = "Allow"
        protocol                   = "Tcp"
        source_port_range          = "*"
        destination_port_range     = "*"
        source_address_prefix      = "*"
        destination_address_prefix = "*"
    }
    
    security_rule {
        name                       = "SSH"
        priority                   = 1001
        direction                  = "Inbound"
        access                     = "Allow"
        protocol                   = "Tcp"
        source_port_range          = "*"
        destination_port_range     = "22"
        source_address_prefix      = "*"
        destination_address_prefix = "*"
    }

    security_rule {
        name                       = "app"
        priority                   = 1002
        direction                  = "Inbound"
        access                     = "Allow"
        protocol                   = "Tcp"
        source_port_range          = "*"
        destination_port_range     = "80"
        source_address_prefix      = "*"
        destination_address_prefix = "*"
    }

    tags = {
        environment = "Terraform Demo"
    }
}

# Create network interface
resource "azurerm_network_interface" "myterraformnic" {
    name                      = "myNIC"
    location                  = "eastus"
    resource_group_name       = "${azurerm_resource_group.myterraformgroup.name}"
    network_security_group_id = "${azurerm_network_security_group.myterraformnsg.id}"

    ip_configuration {
        name                          = "myNicConfiguration"
        subnet_id                     = "${azurerm_subnet.myterraformsubnet.id}"
        private_ip_address_allocation = "Dynamic"
        public_ip_address_id          = "${azurerm_public_ip.myterraformpublicip.id}"
    }

    tags = {
        environment = "Terraform Demo"
    }
}

# Create virtual machine
resource "azurerm_virtual_machine" "myterraformvm" {
    name                  = "myVM"
    location              = "eastus"
    resource_group_name   = "${azurerm_resource_group.myterraformgroup.name}"
    network_interface_ids = ["${azurerm_network_interface.myterraformnic.id}"]
    vm_size               = "Standard_DS1_v2"

    storage_os_disk {
        name              = "myOsDisk"
        caching           = "ReadWrite"
        create_option     = "FromImage"
        managed_disk_type = "Premium_LRS"
    }

    storage_image_reference {
        publisher = "Canonical"
        offer     = "UbuntuServer"
        sku       = "16.04.0-LTS"
        version   = "latest"
    }

    os_profile {
        computer_name  = "myvm"
        admin_username = "azureuser"
        admin_password = "Trucksaregr8"
    }

    os_profile_linux_config {
        disable_password_authentication = false
    }

    tags = {
        environment = "Terraform Demo"
    }
}

resource "azurerm_virtual_machine_extension" "nodeappinstall" {
  name                 = "nodeapp_install"
  location             = "eastus"
  resource_group_name  = "${azurerm_resource_group.myterraformgroup.name}"
  virtual_machine_name = "${azurerm_virtual_machine.myterraformvm.name}"
  publisher            = "Microsoft.Azure.Extensions"
  type                 = "CustomScript"
  type_handler_version = "2.0"
  settings = <<SETTINGS
   {
    "fileUris": [ "https://raw.githubusercontent.com/dstrimble/nodejs-terraform-example/master/mynodeapp.sh" ],
    "commandToExecute": "bash mynodeapp.sh '${var.echostatement}'"
   }
SETTINGS
}