Merge 3babcbd into d7e8670

Author: brown9804

3_networking/load-balancer/README.md

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+# Terraform Template - Azure Load Balancer
+
+Costa Rica
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+[brown9804](https://github.com/brown9804)
+
+Last updated: 2025-06-11
+
+----------
+
+> This template contains Terraform configurations to create and manage an Azure Load Balancer with its associated components including public IP, backend pool, health probe, and load balancing rules.
+
+> [!NOTE]
+> The Load Balancer configuration uses Standard SKU which provides enhanced features and scalability compared to Basic SKU.
+
+<p align="center">
+    <img width="750" alt="image" src="https://github.com/user-attachments/assets/b4f46023-3b27-4ff3-a637-dfc9deedf4aa">
+</p>
+
+## File Descriptions
+
+- **main.tf**: Contains the main configuration for creating the Azure Load Balancer and its associated resources.
+- **variables.tf**: Defines the input variables used in the Terraform configuration.
+- **provider.tf**: Configures the Azure provider to interact with Azure resources.
+- **terraform.tfvars**: Provides default values for the variables defined in `variables.tf`.
+- **outputs.tf**: Defines the outputs such as Load Balancer ID and public IP address.
+
+## Variables
+
+Below is a list of variables used in this template, their expected values, types, and examples:
+
+| Variable Name | Description | Type | Example Value |
+|--------------|-------------|------|---------------|
+| `subscription_id` | The Azure subscription ID | string | `"your-subscription-id"` |
+| `resource_group_name` | The name of the resource group | string | `"my-resource-group"` |
+| `location` | The Azure region to deploy resources | string | `"eastus"` |
+| `load_balancer_name` | The name of the load balancer | string | `"my-load-balancer"` |
+| `public_ip_name` | The name of the public IP address | string | `"my-lb-public-ip"` |
+| `frontend_ip_configuration_name` | Name of the frontend IP configuration | string | `"frontend-ip-config"` |
+| `backend_pool_name` | Name of the backend address pool | string | `"backend-pool"` |
+| `health_probe_name` | Name of the health probe | string | `"health-probe"` |
+| `lb_rule_name` | Name of the load balancer rule | string | `"lb-rule"` |
+| `lb_sku` | SKU of the load balancer | string | `"Standard"` |
+| `probe_protocol` | Protocol for health probe | string | `"Tcp"` |
+| `probe_port` | Port for health probe | number | `80` |
+| `frontend_port` | Frontend port for load balancer rule | number | `80` |
+| `backend_port` | Backend port for load balancer rule | number | `80` |
+| `tags` | Tags to apply to all resources | map | `{ "Environment": "Production" }` |
+
+## Usage
+
+1. Clone the repository and navigate to the load balancer directory
+2. Update the `terraform.tfvars` file with your values
+3. Initialize and apply the Terraform configuration:
+
+```bash
+terraform init
+terraform plan
+terraform apply
+```
+
+## Outputs
+
+| Output Name | Description |
+|-------------|-------------|
+| `load_balancer_id` | The ID of the Load Balancer |
+| `public_ip_address` | The public IP address of the Load Balancer |
+| `backend_pool_id` | The ID of the Backend Address Pool |
+| `frontend_ip_configuration_id` | The ID of the Frontend IP Configuration |
+
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