Automate Your Cloud with Terraform and Azure CLI: Step-by-Step Tutorial

What is Terraform?
Terraform is a tool that helps you create and manage cloud resources like virtual machines, networks, databases, and more using code. Instead of manually clicking through a cloud provider's interface, you write a file describing what you want,and Terraform makes it happen.

Why Use Terraform?

1. Automation: No need to manually configure resources.

2. Consistency: The same code can be reused to deploy environments.

3. Version Control: Store configurations in Git to track changes.

4. Multi-Cloud Support: Works with AWS, Azure, Google Cloud, and more.

STEPS TO INSTALL,CONFIGURE AND USE TERRAFORM

• First step is to install Terraform on our local environment (Linux) to do that we click the link
  https://developer.hashicorp.com/terraform/tutorials/aws-get-started/install-cli Then we click on Linux and we copy the first code and paste on our environment terminal.

• Move to the next code, copy and paste in your environment.

• Copy the next code also and do the same.

• Do the same also for the next code.

• Copy the next two code simultaneously and paste on your terminal in your local environment.

• Next we need to verify that we have successfully installed terraform we type terraform -help

What is AZURE CLI

Azure Command-Line Interface is a tool u can use to manage Azure Resources directly from your command line. It is a way to communicate with Azure using text commands instead of clicking around in a web portal.

Why Use Azure CLI?

1. Efficiency: Quickly perform tasks without navigating through a web interface.

2. Automation: Easily script and automate repetitive tasks.

3. Cross-Platform: Works on Windows, macOS, and Linux.

Getting Started

• Install Azure CLI: Follow the installation guide for your operating system, for this we are using LINUX operating System https://learn.microsoft.com/en-us/cli/azure/install-azure-cli-linux?pivots=apt copy the code and paste in ur local environment

• To Prove that it worked we type the code az login then u will get a url at the end of the page to redirect you to your azure login page

• After successfully logging into your Azure account from the URL provided you should get this popping up.

• You choose your current subscription if you have multiple.

• Next we are going to create a RG (resource group), using the command
  az create --name (rg name) --location (Preferred location)

If u check your azure account, you will see that u have a created a resource group and location.

CREATING A TERRAFORM / Running Terraform

1. Initialize: terraform init

2. Plan: terraform plan

3. Apply: terraform apply

• We are going to create a directory using mkdir (name of the directory) and CD (name of the directory) into the directory.

• Next we create a terraform file using our text editor VIM to create and edit the file i am going to name it main.tf

Note: TOUCH command only creates the file, But VIM allows use to create and edit the text file press I to be in insert mode to be able to type in our text file

• Next we generate a main.tf file that will deploy a resource group to azure in our text file making sure your azure subscription is added. To save this and exit our text editor we hit Shift column wq

• Next we hit the code terraform init this will initialize a working directory containing. It is the first command you run when you start working with Terraform.

• Next we need to hit terraform plan this helps you preview the changes Terraform will make to your infrastructure before actually applying them.

• Terraform Apply is the next code will implement the terraform plan.

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