Merge pull request #8 from devwithkrishna/feature/vmss-linux

Feature/vmss linux

.github/workflows/terraform-docs.yml

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

storage-account/variables.tf

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

vmss-linux/cloudinit.conf

@@ -0,0 +1,20 @@
+#cloud-config
+package_update: true
+packages:
+  - unzip
+  - git
+  - wget
+  - apt-transport-https
+  - software-properties-common
+  - azure-cli
+  - terraform
+  - ca-certificates
+  - curl
+  - gnupg 
+  - lsb-release
+runcmd:
+  - sudo apt-get update
+  - sudo apt install nginx -y
+  - sudo curl -fsSL https://get.docker.com -o get-docker.sh
+  - sudo sh ./get-docker.sh
+  - docker --info

vmss-linux/data.tf

@@ -0,0 +1,9 @@
+data "azurerm_subnet" "subnet" {
+  name                 = var.subnet_name
+  resource_group_name  = var.vnet_resource_group
+  virtual_network_name = var.vnet_name
+}
+
+data "local_file" "cloudinit" {
+  filename = "${path.module}/cloudinit.conf"
+}

vmss-linux/load_balancer.tf

@@ -0,0 +1,42 @@
+resource "azurerm_public_ip" "lb_pub_ip" {
+  name                = "${var.vmss_name}-publicip"
+  location            = azurerm_resource_group.rg.location
+  resource_group_name = azurerm_resource_group.rg.name
+  allocation_method   = "Static"
+}
+
+resource "azurerm_lb" "lb" {
+  name                = "${var.vmss_name}-lb"
+  location            = azurerm_resource_group.rg.location
+  resource_group_name = azurerm_resource_group.rg.name
+  sku                 = var.load_balancer_sku
+
+  frontend_ip_configuration {
+    name                 = "${var.vmss_name}-frontend-ip"
+    public_ip_address_id = azurerm_public_ip.lb_pub_ip.id
+  }
+}
+
+resource "azurerm_lb_backend_address_pool" "backend_address_pool" {
+  loadbalancer_id = azurerm_lb.lb.id
+  name            = "${var.vmss_name}-lb-backendaddresspool"
+
+}
+
+resource "azurerm_lb_rule" "lb_rule" {
+  loadbalancer_id                = azurerm_lb.lb.id
+  name                           = "port-${var.frontend_port}"
+  protocol                       = "Tcp"
+  frontend_port                  = var.frontend_port
+  backend_port                   = var.backend_port
+  frontend_ip_configuration_name = "${var.vmss_name}-frontend-ip"
+  backend_address_pool_ids       = ["${azurerm_lb_backend_address_pool.backend_address_pool.id}"]
+}
+
+resource "azurerm_lb_probe" "health" {
+  loadbalancer_id = azurerm_lb.lb.id
+  name            = "${var.vmss_name}-health-check"
+  port            = var.frontend_port
+  protocol        = var.protocol
+  request_path    = var.request_path
+}

vmss-linux/outputs.tf

@@ -0,0 +1,50 @@
+output "subnet_id" {
+  value       = data.azurerm_subnet.subnet.id
+  description = "Azure Subnet id"
+}
+
+output "azure_vmss_name" {
+  value       = azurerm_linux_virtual_machine_scale_set.vmss.name
+  description = "Azure VMSS name"
+}
+
+output "azure_vmss_rg" {
+  value       = azurerm_resource_group.rg.name
+  description = "Azure VMSS Rg"
+}
+
+output "type_of_instances" {
+  value       = azurerm_linux_virtual_machine_scale_set.vmss.priority
+  description = "Spot or Regular instances"
+}
+
+output "data_disks" {
+  value       = azurerm_linux_virtual_machine_scale_set.vmss.data_disk
+  description = "VMSS data disks"
+}
+
+output "os_disk" {
+  value       = azurerm_linux_virtual_machine_scale_set.vmss.os_disk[0].disk_size_gb
+  description = "VMSS os disk size"
+}
+
+output "admin_username" {
+  value       = var.admin_username
+  description = "VMSS user name"
+}
+
+output "admin_password" {
+  value       = random_password.password.result
+  sensitive   = false
+  description = "VMSS user password"
+}
+
+output "loadbalancer_id" {
+  value       = azurerm_lb.lb.id
+  description = "AzureLoad balancer Id"
+}
+
+output "load_balancer_frontend_public_ip" {
+  value       = azurerm_public_ip.lb_pub_ip.ip_address
+  description = "Azure load balancer frontend ip address"
+}

vmss-linux/providers.tf

@@ -0,0 +1,16 @@
+terraform {
+  required_version = "~> 1.3"
+  required_providers {
+    azurerm = {
+      source  = "hashicorp/azurerm"
+      version = "~> 3.0"
+    }
+    random = {
+      source  = "hashicorp/random"
+      version = ">= 3.1"
+    }
+  }
+}
+provider "azurerm" {
+  features {}
+}

vmss-linux/variables.tf

@@ -0,0 +1,158 @@
+variable "resource_group_name" {
+  default     = ""
+  description = "Azure VMSS resource group name"
+  type        = string
+}
+
+variable "vmss_name" {
+  default     = ""
+  description = "Azure VMSS name"
+  type        = string
+}
+
+variable "location" {
+  default     = ""
+  description = "Azure location"
+  type        = string
+}
+
+variable "sku_size" {
+  default     = ""
+  description = "Azure VMSS sku"
+  type        = string
+}
+
+variable "default_instance_count" {
+  default     = 0
+  description = "Default instance count for the VMSS"
+  type        = number
+}
+
+variable "admin_username" {
+  default     = "admin_user"
+  description = "VMSS default user name"
+  type        = string
+}
+
+
+variable "subnet_name" {
+  default     = ""
+  description = "Azure subnet name to create vmss"
+  type        = string
+}
+
+variable "vnet_name" {
+  default     = ""
+  description = "Azure Vnet Name"
+  type        = string
+}
+
+variable "vnet_resource_group" {
+  default     = ""
+  description = "Azure Vnet resource group"
+  type        = string
+}
+
+
+variable "os_disk_storage_account_type" {
+  default     = "Standard_LRS"
+  description = "OS disk storage account type"
+  type        = string
+  validation {
+    condition     = contains(["Standard_LRS", "StandardSSD_LRS", "StandardSSD_ZRS", "Premium_LRS", "Premium_ZRS"], var.os_disk_storage_account_type)
+    error_message = "OS disk storage account type must be one among Standard_LRS,StandardSSD_LRS,StandardSSD_ZRS,Premium_LRS,Premium_ZRS."
+  }
+}
+
+variable "os_disk_size" {
+  default     = 30
+  description = "OS disk size in GB"
+  type        = number
+}
+
+
+variable "additional_data_disks" {
+  description = "Adding additional disks capacity to add each instance in GB"
+  type        = list(number)
+  default     = []
+}
+
+variable "additional_data_disks_storage_account_type" {
+  description = "The Type of Storage Account which should back this Data Disk. Possible values include Standard_LRS, StandardSSD_LRS, Premium_LRS and UltraSSD_LRS."
+  default     = "Standard_LRS"
+  type        = string
+  validation {
+    condition     = contains(["Standard_LRS", "StandardSSD_LRS", "StandardSSD_ZRS", "Premium_LRS", "Premium_ZRS"], var.additional_data_disks_storage_account_type)
+    error_message = "Data disk storage account type must be one among Standard_LRS,StandardSSD_LRS,StandardSSD_ZRS,Premium_LRS,Premium_ZRS."
+  }
+}
+
+variable "application_name" {
+  default     = ""
+  description = "Azure application name tag"
+  type        = string
+}
+
+variable "environment" {
+  default     = ""
+  description = "Environment tag value in Azure"
+  type        = string
+  validation {
+    condition     = contains(["DEV", "QA", "UAT", "PROD"], var.environment)
+    error_message = "Environment value should be one among DEV or QA or UAT or PROD."
+  }
+}
+
+variable "priority" {
+  default     = ""
+  description = "Type of vmss instances Spot or regular"
+  type        = string
+  validation {
+    condition     = contains(["Spot", "Regular"], var.priority)
+    error_message = "Priority Should be either Regular or Spot."
+  }
+}
+
+variable "eviction_policy" {
+  default     = "Delete"
+  description = "Azure Spot VM eviction policy Delete or Deallocate"
+  type        = string
+}
+
+variable "load_balancer_sku" {
+  default     = "Basic"
+  description = "Azure Loadbalancer Skus"
+  type        = string
+  validation {
+    condition     = contains(["Basic", "Standard", "Gateway"], var.load_balancer_sku)
+    error_message = "Load balancer SKU must be one among Basic , Standard or Gateway type."
+  }
+}
+
+variable "frontend_port" {
+  default     = 80
+  type        = number
+  description = "Port on which queries for status of application"
+}
+
+variable "backend_port" {
+  default     = 80
+  type        = number
+  description = "Port on which traffic is passed on to application backends"
+}
+variable "request_path" {
+  default     = "/"
+  type        = string
+  description = "Health check path"
+}
+
+variable "protocol" {
+  default     = "Http"
+  description = "Protocol for Load balancing"
+  type        = string
+  validation {
+    condition     = contains(["Http", "Https", "Tcp"], var.protocol)
+    error_message = "Protocol value should be one among Http, Https or Tcp."
+  }
+}
+