Azure Load Balancer Setup with Terraform

This Terraform configuration sets up an Azure Load Balancer (LB) to distribute traffic among multiple virtual machines (VMs) in a backend pool. It includes configurations for network interfaces, public IP, load balancer, backend pool, health probe, rules, NAT rules, DNS setup, and more.

Prerequisites

• Azure CLI installed and configured
• Terraform installed (version >= 0.13)
• Azure subscription

Getting Started

1. Clone this repository:

   git clone <repository_url>
   cd <repository_directory>
   

2. Initialize Terraform:

   terraform init
   

3. Modify variables.tf with your specific configurations.

4. Review and apply the Terraform plan:

   terraform plan
   terraform apply
   

Configuration Details

Network Interfaces

Defines network interfaces for VMs with dynamic private IP allocation.

Public IP

Static allocation method for the Load Balancer's public IP address.

Load Balancer

Standard SKU load balancer with a frontend IP configuration using the allocated public IP.

Backend Address Pool

Defines a backend pool with VMs' private IP addresses.

Health Probe

TCP probe to check VMs' SSH availability on port 22.

Load Balancer Rule

TCP rule to forward traffic from port 80 on the Load Balancer to port 80 on backend VMs.

NAT Rule

Allows SSH access (port 22) to backend VMs through a range of frontend ports (2200-2300).

DNS Setup

Creates a DNS zone and A record to point your domain (www.rimtest.com) to the Load Balancer's public IP.

Outputs

• DNS zone name servers for configuring your domain's DNS settings.

Cleanup

To avoid unnecessary charges, destroy the Terraform-managed resources:

terraform destroy

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This README provides a structured overview of your Terraform configuration for setting up an Azure Load Balancer. Adjust the content based on your specific project details and requirements.