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Merge pull request #8 from devwithkrishna/feature/vmss-linux
Feature/vmss linux
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‎.github/workflows/terraform-docs.yml‎

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@@ -14,9 +14,9 @@ jobs:
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generate-terraform-docs:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: actions/checkout@v4
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- name: configure terraform-docs
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run: |
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curl -sSLo ./terraform-docs.tar.gz https://terraform-docs.io/dl/v0.18.0/terraform-docs-v0.18.0-$(uname)-amd64.tar.gz
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tar -xzf terraform-docs.tar.gz

‎storage-account/variables.tf‎

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@@ -6,7 +6,7 @@ variable "resource_group_name" {
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variable "location" {
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type = string
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description = "Azure storage account location"
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default = "centralindia"
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default = ""
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}
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variable "storage_account_name" {

‎vmss-linux/cloudinit.conf‎

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#cloud-config
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package_update: true
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packages:
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- unzip
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- git
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- wget
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- apt-transport-https
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- software-properties-common
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- azure-cli
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- terraform
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- ca-certificates
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- curl
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- gnupg
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- lsb-release
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runcmd:
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- sudo apt-get update
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- sudo apt install nginx -y
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- sudo curl -fsSL https://get.docker.com -o get-docker.sh
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- sudo sh ./get-docker.sh
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- docker --info

‎vmss-linux/data.tf‎

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data "azurerm_subnet" "subnet" {
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name = var.subnet_name
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resource_group_name = var.vnet_resource_group
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virtual_network_name = var.vnet_name
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}
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data "local_file" "cloudinit" {
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filename = "${path.module}/cloudinit.conf"
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}

‎vmss-linux/load_balancer.tf‎

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resource "azurerm_public_ip" "lb_pub_ip" {
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name = "${var.vmss_name}-publicip"
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location = azurerm_resource_group.rg.location
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resource_group_name = azurerm_resource_group.rg.name
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allocation_method = "Static"
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}
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resource "azurerm_lb" "lb" {
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name = "${var.vmss_name}-lb"
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location = azurerm_resource_group.rg.location
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resource_group_name = azurerm_resource_group.rg.name
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sku = var.load_balancer_sku
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frontend_ip_configuration {
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name = "${var.vmss_name}-frontend-ip"
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public_ip_address_id = azurerm_public_ip.lb_pub_ip.id
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}
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}
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resource "azurerm_lb_backend_address_pool" "backend_address_pool" {
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loadbalancer_id = azurerm_lb.lb.id
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name = "${var.vmss_name}-lb-backendaddresspool"
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}
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resource "azurerm_lb_rule" "lb_rule" {
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loadbalancer_id = azurerm_lb.lb.id
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name = "port-${var.frontend_port}"
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protocol = "Tcp"
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frontend_port = var.frontend_port
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backend_port = var.backend_port
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frontend_ip_configuration_name = "${var.vmss_name}-frontend-ip"
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backend_address_pool_ids = ["${azurerm_lb_backend_address_pool.backend_address_pool.id}"]
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}
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resource "azurerm_lb_probe" "health" {
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loadbalancer_id = azurerm_lb.lb.id
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name = "${var.vmss_name}-health-check"
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port = var.frontend_port
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protocol = var.protocol
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request_path = var.request_path
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}

‎vmss-linux/outputs.tf‎

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output "subnet_id" {
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value = data.azurerm_subnet.subnet.id
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description = "Azure Subnet id"
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}
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output "azure_vmss_name" {
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value = azurerm_linux_virtual_machine_scale_set.vmss.name
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description = "Azure VMSS name"
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}
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output "azure_vmss_rg" {
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value = azurerm_resource_group.rg.name
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description = "Azure VMSS Rg"
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}
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output "type_of_instances" {
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value = azurerm_linux_virtual_machine_scale_set.vmss.priority
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description = "Spot or Regular instances"
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}
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output "data_disks" {
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value = azurerm_linux_virtual_machine_scale_set.vmss.data_disk
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description = "VMSS data disks"
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}
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output "os_disk" {
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value = azurerm_linux_virtual_machine_scale_set.vmss.os_disk[0].disk_size_gb
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description = "VMSS os disk size"
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}
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output "admin_username" {
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value = var.admin_username
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description = "VMSS user name"
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}
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output "admin_password" {
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value = random_password.password.result
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sensitive = false
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description = "VMSS user password"
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}
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output "loadbalancer_id" {
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value = azurerm_lb.lb.id
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description = "AzureLoad balancer Id"
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}
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output "load_balancer_frontend_public_ip" {
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value = azurerm_public_ip.lb_pub_ip.ip_address
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description = "Azure load balancer frontend ip address"
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}

‎vmss-linux/providers.tf‎

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terraform {
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required_version = "~> 1.3"
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required_providers {
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azurerm = {
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source = "hashicorp/azurerm"
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version = "~> 3.0"
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}
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random = {
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source = "hashicorp/random"
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version = ">= 3.1"
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}
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}
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}
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provider "azurerm" {
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features {}
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}

‎vmss-linux/variables.tf‎

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variable "resource_group_name" {
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default = ""
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description = "Azure VMSS resource group name"
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type = string
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}
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variable "vmss_name" {
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default = ""
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description = "Azure VMSS name"
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type = string
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}
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variable "location" {
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default = ""
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description = "Azure location"
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type = string
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}
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variable "sku_size" {
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default = ""
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description = "Azure VMSS sku"
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type = string
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}
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variable "default_instance_count" {
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default = 0
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description = "Default instance count for the VMSS"
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type = number
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}
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variable "admin_username" {
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default = "admin_user"
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description = "VMSS default user name"
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type = string
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}
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variable "subnet_name" {
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default = ""
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description = "Azure subnet name to create vmss"
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type = string
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}
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variable "vnet_name" {
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default = ""
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description = "Azure Vnet Name"
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type = string
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}
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variable "vnet_resource_group" {
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default = ""
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description = "Azure Vnet resource group"
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type = string
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}
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variable "os_disk_storage_account_type" {
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default = "Standard_LRS"
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description = "OS disk storage account type"
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type = string
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validation {
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condition = contains(["Standard_LRS", "StandardSSD_LRS", "StandardSSD_ZRS", "Premium_LRS", "Premium_ZRS"], var.os_disk_storage_account_type)
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error_message = "OS disk storage account type must be one among Standard_LRS,StandardSSD_LRS,StandardSSD_ZRS,Premium_LRS,Premium_ZRS."
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}
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}
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variable "os_disk_size" {
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default = 30
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description = "OS disk size in GB"
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type = number
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}
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variable "additional_data_disks" {
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description = "Adding additional disks capacity to add each instance in GB"
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type = list(number)
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default = []
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}
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variable "additional_data_disks_storage_account_type" {
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description = "The Type of Storage Account which should back this Data Disk. Possible values include Standard_LRS, StandardSSD_LRS, Premium_LRS and UltraSSD_LRS."
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default = "Standard_LRS"
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type = string
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validation {
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condition = contains(["Standard_LRS", "StandardSSD_LRS", "StandardSSD_ZRS", "Premium_LRS", "Premium_ZRS"], var.additional_data_disks_storage_account_type)
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error_message = "Data disk storage account type must be one among Standard_LRS,StandardSSD_LRS,StandardSSD_ZRS,Premium_LRS,Premium_ZRS."
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}
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}
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variable "application_name" {
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default = ""
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description = "Azure application name tag"
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type = string
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}
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variable "environment" {
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default = ""
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description = "Environment tag value in Azure"
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type = string
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validation {
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condition = contains(["DEV", "QA", "UAT", "PROD"], var.environment)
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error_message = "Environment value should be one among DEV or QA or UAT or PROD."
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}
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}
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variable "priority" {
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default = ""
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description = "Type of vmss instances Spot or regular"
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type = string
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validation {
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condition = contains(["Spot", "Regular"], var.priority)
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error_message = "Priority Should be either Regular or Spot."
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}
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}
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variable "eviction_policy" {
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default = "Delete"
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description = "Azure Spot VM eviction policy Delete or Deallocate"
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type = string
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}
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variable "load_balancer_sku" {
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default = "Basic"
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description = "Azure Loadbalancer Skus"
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type = string
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validation {
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condition = contains(["Basic", "Standard", "Gateway"], var.load_balancer_sku)
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error_message = "Load balancer SKU must be one among Basic , Standard or Gateway type."
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}
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}
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variable "frontend_port" {
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default = 80
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type = number
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description = "Port on which queries for status of application"
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}
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variable "backend_port" {
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default = 80
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type = number
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description = "Port on which traffic is passed on to application backends"
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}
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variable "request_path" {
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default = "/"
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type = string
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description = "Health check path"
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}
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variable "protocol" {
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default = "Http"
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description = "Protocol for Load balancing"
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type = string
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validation {
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condition = contains(["Http", "Https", "Tcp"], var.protocol)
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error_message = "Protocol value should be one among Http, Https or Tcp."
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}
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}
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