Terraform

Unlike Bicep Terraform allows us to separate the variables of the definition files from the state of our infrastructure, the working folder is c:\osdcloud\terraform

File main.tf

This is the main file of terraform and contains the complete description of the future infrastructure.

resource "azurerm_resource_group" "RessourceGroup" {
    location    = var.osdcloud_Location
    name      = var.osdcloud_resourcegroup
}

resource "azurerm_storage_account" "OSDCloud" {
  account_replication_type = "LRS"
  account_tier             = "Standard"
  location                 = var.osdcloud_Location
  name                     = var.osdcloud_StorageAccountOSDCloud
  resource_group_name      = var.osdcloud_resourcegroup
  access_tier              = "Hot"
  min_tls_version          = "TLS1_2"
  account_kind             = "StorageV2"
  shared_access_key_enabled = true
  allow_nested_items_to_be_public = true
    blob_properties {
      change_feed_enabled = true
    }
  
  tags = {
    OSDCloud = "production"
  }
  depends_on = [
    azurerm_resource_group.RessourceGroup,
  ]
}
resource "azurerm_storage_account" "OSDScripts" {
    depends_on = [
    azurerm_resource_group.RessourceGroup,
  ]

  account_replication_type = "LRS"
  account_tier             = "Standard"
  location                 = var.osdcloud_Location
  name                     = var.osdcloud_StorageAccountOSDScripts
  resource_group_name      = var.osdcloud_resourcegroup
  min_tls_version          = "TLS1_2"
  access_tier              = "Hot"
  account_kind             = "StorageV2"
  shared_access_key_enabled = true
  allow_nested_items_to_be_public = true
    blob_properties {
      change_feed_enabled = true
    }
  tags = {
    OSDScripts = "powershell"
  }
}

resource "azurerm_storage_container" "ContainerOSDCloud" {
   depends_on = [
    azurerm_resource_group.RessourceGroup,
    azurerm_storage_account.OSDCloud,
  ]

  count = length(var.osdcloud_containers)
  name                  = var.osdcloud_containers[count.index]
  storage_account_name  = azurerm_storage_account.OSDCloud.name
  container_access_type = "container"
}

resource "azurerm_storage_container" "ContainerOSDScripts" {
  count = length(var.osdscript_containers)
  name                  = var.osdscript_containers[count.index]
  storage_account_name  = azurerm_storage_account.OSDScripts.name
  container_access_type = "container"
}

resource "azurerm_role_assignment" "RBAC_OSDCloud" {
  scope                = azurerm_storage_account.OSDCloud.id
  role_definition_name = "Storage Blob Data Reader"
  principal_id         = var.technicien_id
}
resource "azurerm_role_assignment" "RBAC_OSDScripts" {
  scope                = azurerm_storage_account.OSDScripts.id
  role_definition_name = "Storage Blob Data Reader"
  principal_id         = var.technicien_id
}

File provider.tf

The providers file contains the information to connect to Azure.

terraform {
  backend "local" {}
  required_providers {
    azurerm = {
      source = "hashicorp/azurerm"
      version = "3.9.0"
    }
  }
}

provider "azurerm" {
  subscription_id = var.subscription_id
  tenant_id =  var.tenant_id
  features {}
}

File variables.tf

This file allows you to understand the role of each variable as well as the type that accepts variables, objects, lists, integer etc...

variable "osdcloud_containers" {
    description = "List of containers to create for OSDCloud"
    type = list
}
variable "osdscript_containers" {
    description = "List of containers to create for OSDScripts"
    type = list
}
variable "osdcloud_resourcegroup" {
    description = " Name for the resource group"
    type = string
}
variable "osdcloud_StorageAccountOSDCloud" {
    description = "The name of the storage account for OSDCloud"
    type = string
}
 variable "osdcloud_StorageAccountOSDScripts" {
    description = "The name of the storage account for OSDScripts"
    type = string   
 }   
variable "osdcloud_Location" {
    description = "Select your Azure region"
    type = string

 validation {
    condition = contains(
      ["eastasia", "southeastasia", "centralus","eastus","eastus2","westus","northcentralus","southcentralus","northeurope","westeurope","japanwest","japaneast","brazilsouth","australiaeast","australiasoutheast","southindia","centralindia","westindia","canadacentral","canadaeast","uksouth","ukwest","westcentralus","germanywestcentral","norwaywest","norwayeast","brazilsoutheast","westus3","swedencentral"],
      var.osdcloud_Location
    )
    error_message = "Err: This location is not valid for Azure."
  }
}
variable "subscription_id" {
    description = " your Azure subscription id"
    type = string
}

variable "technicien_id" {
    description = " your AzureAD User Id, it can only connect to storage account download and list objects"
    type = string
}
variable "tenant_id" {
    description = " your Azure tenant id"
    type = string
}

file terraform.tfvars

It is in this file that we must fill in all the necessary information.

• The Azure regrion

• The subscription Id

• The Technicien Id

• The tenant Id

osdcloud_containers = ["server", "retail", "insiders", "driverpack", "bootimage"]
osdscript_containers = ["scripts", "packages", "unattend", "others"]
osdcloud_resourcegroup = "AzOSDCloud"
osdcloud_StorageAccountOSDScripts = "osdscripts"
osdcloud_StorageAccountOSDCloud = "osdcloud"
osdcloud_Location = ""
subscription_id = ""
technicien_id = ""
tenant_id = ""

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