Terraform skeleton

Author: alvagante

terraform/main.tf

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+## AWS
+module "aws" {
+  source    = "./modules/aws"
+  count     = var.enable_aws ? 1 : 0
+  instances = var.instance_count
+  subnet    = var.aws_subnet
+}
+
+## Azure
+module "azure" {
+  source                  = "./modules/azure"
+  count                   = var.enable_azure ? 1 : 0
+  instances               = var.instance_count
+  resource_group_name     = var.resource_group_name
+  resource_group_location = var.resource_group_location
+}

terraform/modules/aws/aws.tf

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+resource "aws_instance" "inst" {
+  count         = var.instances
+  ami           = var.ami_id
+  instance_type = var.instance_type
+  subnet_id     = var.subnet
+
+  tags = {
+    Name = "EX42-${count.index}"
+  }
+}

terraform/modules/aws/outputs.tf

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+output "instance_name" {
+  value = aws.inst.*.tags.Name
+}

terraform/modules/aws/variables.tf

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+variable "instances" {}
+
+variable "ami_id" {
+  type = string
+  default = "ami-0729e439b6769d6ab"
+}
+
+variable "instance_type" {
+  type = string
+  default = "t3.micro"
+}
+
+variable "subnet" {}

terraform/modules/azure/azure.tf

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+# Import Resource Group
+resource "azurerm_resource_group" "rg" {
+  name      = var.resource_group_name
+  location  = var.resource_group_location
+}
+
+# Create virtual network
+resource "azurerm_virtual_network" "vnet" {
+  name                = "Vnet"
+  address_space       = ["10.0.0.0/16"]
+  location            = azurerm_resource_group.rg.location
+  resource_group_name = azurerm_resource_group.rg.name
+}
+
+# Create subnet
+resource "azurerm_subnet" "subnet" {
+  name                 = "Subnet"
+  resource_group_name  = azurerm_resource_group.rg.name
+  virtual_network_name = azurerm_virtual_network.vnet.name
+  address_prefixes     = ["10.0.1.0/24"]
+}
+
+
+# Create network interface
+resource "azurerm_network_interface" "nic" {
+  count               = var.instances
+  name                = "NIC${count.index}"
+  location            = azurerm_resource_group.rg.location
+  resource_group_name = azurerm_resource_group.rg.name
+
+  ip_configuration {
+    name                          = "NicConfig"
+    subnet_id                     = azurerm_subnet.subnet.id
+    private_ip_address_allocation = "Dynamic"
+  }
+}
+
+# Create virtual machine
+resource "azurerm_linux_virtual_machine" "vm" {
+  count                 = var.instances
+  name                  = "EX42-${count.index}"
+  location              = azurerm_resource_group.rg.location
+  resource_group_name   = azurerm_resource_group.rg.name
+  network_interface_ids = [azurerm_network_interface.nic[count.index].id]
+  size                  = "Standard_DS1_v2"
+
+  admin_ssh_key {
+    username   = "admin"
+    public_key = file("~/.ssh/id_rsa.pub")
+  }
+
+  os_disk {
+    caching              = "ReadWrite"
+    storage_account_type = "Standard_LRS"
+  }
+
+  source_image_reference {
+    publisher = "Canonical"
+    offer     = "UbuntuServer"
+    sku       = "18.04-LTS"
+    version   = "latest"
+  }
+
+     computer_name                   = "VM-${count.index}"
+     admin_username                  = "admin"
+     admin_password                  = "wqe2sdf3"
+     disable_password_authentication = false
+}

terraform/modules/azure/outputs.tf

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+output "instance_name" {
+  value = azurerm_linux_virtual_machine.vm.*.name
+}

terraform/modules/azure/variables.tf

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+variable "instances" {}
+
+variable "resource_group_name" {}
+
+variable "resource_group_location" {}
+

terraform/hetznercloud/README.md terraform/modules/hetzner/README.md

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+output "aws_instances" {
+  value = module.aws.*.instance_name
+}
+
+output "azure_instances" {
+  value = module.azure.*.instance_name
+}

terraform/hetznercloud/hcloud.tf terraform/modules/hetzner/hcloud.tf

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+terraform {
+  required_version = ">= 0.14.9"
+
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "~> 4.25"
+    }
+
+    azurerm = {
+      source  = "hashicorp/azurerm"
+      version = "~>3.17"
+    }
+  }
+}
+
+provider "aws" {
+  region  = "eu-north-1"
+  profile = "default"
+}
+
+provider "azurerm" {
+  features {}
+
+  skip_provider_registration = true
+}

terraform/hetznercloud/output.tf terraform/modules/hetzner/output.tf

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+variable "enable_aws" {
+  description = "Enable / Disable AWS Deployment"
+  type        = bool
+  default     = true
+}
+
+variable "enable_azure" {
+  description = "Enable / Disable Azure Deployment"
+  type        = bool
+  default     = false
+}
+
+variable "instance_count" {
+  description = "Number of Instances"
+  type        = string
+  default     = 2
+}
+
+variable "aws_subnet" {
+  description = "AWS Subnet"
+  type        = string
+  default     = "subnet-01e0d908d980f33cc"
+}
+
+variable "resource_group_name" {
+  description = "Resource Group Name"
+  type        = string
+  default     = "1-a46ba6a8-playground-sandbox"
+}
+
+variable "resource_group_location" {
+  description = "Resource Group Location"
+  type        = string
+  default     = "centralus"
+}