# Azure Networking Module

**Purpose**: Create Azure Virtual Network with subnets and network security groups
**Status**: ✅ Complete

---

## Usage

```hcl
module "networking" {
  source = "../../modules/azure/networking"

  resource_group_name = "rg-example"
  location           = "eastus"
  vnet_name          = "vnet-example"
  address_space      = ["10.0.0.0/16"]

  subnets = {
    frontend = {
      name             = "snet-frontend"
      address_prefixes = ["10.0.1.0/24"]
      service_endpoints = ["Microsoft.Storage"]
    }
    backend = {
      name             = "snet-backend"
      address_prefixes = ["10.0.2.0/24"]
      service_endpoints = []
    }
  }

  network_security_groups = {
    frontend_nsg = {
      name       = "nsg-frontend"
      subnet_key = "frontend"
      security_rules = [
        {
          name                       = "AllowHTTP"
          priority                   = 100
          direction                  = "Inbound"
          access                     = "Allow"
          protocol                   = "Tcp"
          source_port_range          = "*"
          destination_port_range     = "80"
          source_address_prefix      = "*"
          destination_address_prefix = "*"
        }
      ]
    }
  }

  tags = {
    Environment = "production"
  }
}
```

---

## Inputs

| Name | Description | Type | Default | Required |
|------|-------------|------|---------|----------|
| resource_group_name | Name of the resource group | string | - | yes |
| location | Azure region | string | - | yes |
| vnet_name | Name of the virtual network | string | - | yes |
| address_space | Address space for the virtual network | list(string) | - | yes |
| subnets | Map of subnets to create | map(object) | {} | no |
| network_security_groups | Map of network security groups | map(object) | {} | no |
| tags | Tags to apply | map(string) | {} | no |

---

## Outputs

| Name | Description |
|------|-------------|
| vnet_id | Virtual network ID |
| vnet_name | Virtual network name |
| subnet_ids | Map of subnet names to IDs |
| subnet_names | Map of subnet names |
| nsg_ids | Map of NSG names to IDs |

---

**Status**: ✅ Complete - Ready for use