Tuesday, May 25, 2021

How to create Azure Container Registry using Terraform in Azure Cloud | Setup Azure Container Registry using Terraform

Hashicorp's Terraform is an open-source tool for provisioning and managing cloud infrastructure. Terraform can provision resources on any cloud platform. 

Terraform allows you to create infrastructure in configuration files(tf files) that describe the topology of cloud resources. These resources include virtual machines, storage accounts, and networking interfaces. The Terraform CLI provides a simple mechanism to deploy and version the configuration files to Azure.

Watch the steps in YouTube:

Advantages of using Terraform:
  • Reduce manual human errors while deploying and managing infrastructure.
  • Deploys the same template multiple times to create identical development, test, and production environments.
  • Reduces the cost of development and test environments by creating them on-demand.

How to Authenticate with Azure?

Terraform can authenticate with Azure in many ways, in this example we will use Azure CLI to authenticate with Azure and then we will create resources using Terraform.

Pre-requistes:

Azure CLI needs to be installed.

Terraform needs to be installed.

Logging into the Azure CLI

Login to the Azure CLI using:

az login

The above command will open the browser and will ask your Microsoft account details. Once you logged in, you can see the account info by executing below command:

az account list

Now create a directory to store Terraform files.

mkdir tf-acr

cd tf-acr

Let's create a terraform file to use azure provider. To configure Terraform to use the Default Subscription defined in the Azure CLI, use the below cod.

Create Terraform files

Create variable file first

sudo vi variables.tf

variable "resource_group_name" {
type = string
  description = "RG name in Azure"
}

variable "acr_name" {
type = string
  description = "ACR name in Azure"
}

variable "location" {
type = string
  description = "Resources location in Azure"
}

Define values for variables declared

sudo vi terraform.tfvars
resource_group_name = "rg-tf-acr"
location            = "southcentralus"
acr_name     = "myacrrepo123"

Create main Terraform file

sudo vi main.tf

provider "azurerm" {
  features {}
}
resource "azurerm_resource_group" "rg" {
  name     = var.resource_group_name
  location = var.location
}

resource "azurerm_container_registry" "acr" {
  name     = var.acr_name
  resource_group_name      = azurerm_resource_group.rg.name
  location                 = azurerm_resource_group.rg.location
  sku                      = "Basic"
  admin_enabled            = true
}

output "admin_password" {
  value       = azurerm_container_registry.acr.admin_password
  description = "The object ID of the user"
sensitive = true
}

Perform the below command to initialize the directory.

terraform init

Once directory is initialized, now perform below command to validate terraform files.

terraform validate

Then perform plan command to see how many resources will be created.

terraform plan


terraform apply or terraform apply --auto-approve

Do you want to perform these actions?

type yes 


Now Login into Azure Cloud to see the resources created.


How to destroy the resources ?
Execute terraform destroy

The above command to destroy both resource group and container registry created before.


Sample code is available here in my GitHub repo.


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