https://github.com/claranet/terraform-azurerm-subnet

Terraform module for Azure virtual networks subnets
https://github.com/claranet/terraform-azurerm-subnet

azure claranet module terraform

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Terraform module for Azure virtual networks subnets

Host: GitHub
URL: https://github.com/claranet/terraform-azurerm-subnet
Owner: claranet
License: apache-2.0
Created: 2019-09-25T15:45:13.000Z (almost 6 years ago)
Default Branch: master
Last Pushed: 2025-04-05T02:34:27.000Z (3 months ago)
Last Synced: 2025-04-05T03:24:06.449Z (3 months ago)
Topics: azure, claranet, module, terraform
Language: HCL
Homepage:
Size: 219 KB
Stars: 9
Watchers: 8
Forks: 24
Open Issues: 0
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS

Awesome Lists containing this project

README

        # Azure network - Subnet

[![Changelog](https://img.shields.io/badge/changelog-release-green.svg)](CHANGELOG.md) [![Notice](https://img.shields.io/badge/notice-copyright-blue.svg)](NOTICE) [![Apache V2 License](https://img.shields.io/badge/license-Apache%20V2-orange.svg)](LICENSE) [![OpenTofu Registry](https://img.shields.io/badge/opentofu-registry-yellow.svg)](https://search.opentofu.org/module/claranet/subnet/azurerm/)

Common Azure module to generate a [Virtual Network Subnet](https://docs.microsoft.com/en-us/azure/virtual-network/virtual-network-manage-subnet).

This module must be used within a [Virtual Network](https://docs.microsoft.com/en-us/azure/virtual-network/virtual-networks-overview).

## Global versioning rule for Claranet Azure modules

| Module version | Terraform version | OpenTofu version | AzureRM version |

| -------------- | ----------------- | ---------------- | --------------- |

| >= 8.x.x       | **Unverified**    | 1.8.x            | >= 4.0          |

| >= 7.x.x       | 1.3.x             |                  | >= 3.0          |

| >= 6.x.x       | 1.x               |                  | >= 3.0          |

| >= 5.x.x       | 0.15.x            |                  | >= 2.0          |

| >= 4.x.x       | 0.13.x / 0.14.x   |                  | >= 2.0          |

| >= 3.x.x       | 0.12.x            |                  | >= 2.0          |

| >= 2.x.x       | 0.12.x            |                  | < 2.0           |

| <  2.x.x       | 0.11.x            |                  | < 2.0           |

## Contributing

If you want to contribute to this repository, feel free to use our [pre-commit](https://pre-commit.com/) git hook configuration

which will help you automatically update and format some files for you by enforcing our Terraform code module best-practices.

More details are available in the [CONTRIBUTING.md](./CONTRIBUTING.md#pull-request-process) file.

## Usage

This module is optimized to work with the [Claranet terraform-wrapper](https://github.com/claranet/terraform-wrapper) tool

which set some terraform variables in the environment needed by this module.

More details about variables set by the `terraform-wrapper` available in the [documentation](https://github.com/claranet/terraform-wrapper#environment).

⚠️ Since modules version v8.0.0, we do not maintain/check anymore the compatibility with

[Hashicorp Terraform](https://github.com/hashicorp/terraform/). Instead, we recommend to use [OpenTofu](https://github.com/opentofu/opentofu/).

```hcl

module "route_table" {

  source  = "claranet/route-table/azurerm"

  version = "x.x.x"

  client_name         = var.client_name

  environment         = var.environment

  stack               = var.stack

  location            = module.azure_region.location

  location_short      = module.azure_region.location_short

  resource_group_name = module.rg.name

}

# module "network_security_group" {

#   source  = "claranet/nsg/azurerm"

#   version = "x.x.x"

#   client_name         = var.client_name

#   environment         = var.environment

#   location            = module.azure_region.location

#   location_short      = module.azure_region.location_short

#   stack               = var.stack

#   resource_group_name = module.rg.name

# }

module "subnet" {

  source  = "claranet/subnet/azurerm"

  version = "x.x.x"

  environment    = var.environment

  location_short = module.azure_region.location_short

  client_name    = var.client_name

  stack          = var.stack

  resource_group_name = module.rg.name

  virtual_network_name = module.vnet.name

  cidrs                = ["10.0.1.0/26"]

  delegations = {

    app-service-plan = [

      {

        name    = "Microsoft.Web/serverFarms"

        actions = ["Microsoft.Network/virtualNetworks/subnets/action"]

      }

    ]

  }

  route_table_name = module.route_table.name

  # network_security_group_name = module.network_security_group.name

  service_endpoints = ["Microsoft.Storage", "Microsoft.KeyVault", "Microsoft.ServiceBus", "Microsoft.Web"]

}

```

## Providers

| Name | Version |

|------|---------|

| azurecaf | ~> 1.2.28 |

| azurerm | ~> 4.0 |

## Modules

No modules.

## Resources

| Name | Type |

|------|------|

| [azurerm_subnet.main](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/subnet) | resource |

| [azurerm_subnet_network_security_group_association.main](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/subnet_network_security_group_association) | resource |

| [azurerm_subnet_route_table_association.main](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/subnet_route_table_association) | resource |

| [azurecaf_name.subnet](https://registry.terraform.io/providers/claranet/azurecaf/latest/docs/data-sources/name) | data source |

| [azurerm_subscription.main](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/data-sources/subscription) | data source |

## Inputs

| Name | Description | Type | Default | Required |

|------|-------------|------|---------|:--------:|

| cidrs | The address prefix list to use for the subnet. | `list(string)` | n/a | yes |

| client\_name | Client name/account used in naming. | `string` | n/a | yes |

| custom\_name | Optional custom subnet name. | `string` | `null` | no |

| default\_outbound\_access\_enabled | Enable or disable `default_outbound_access`. See [documentation](https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/default-outbound-access). | `bool` | `false` | no |

| delegations | Subnet delegations configuration. | 
map(list(object({
    name    = string
    actions = list(string)
  }))) | `{}` | no |

| environment | Project environment. | `string` | n/a | yes |

| location\_short | Short string for Azure location. | `string` | n/a | yes |

| name\_prefix | Optional prefix for the generated name. | `string` | `""` | no |

| name\_suffix | Optional suffix for the generated name. | `string` | `""` | no |

| network\_security\_group\_name | The Network Security Group name to associate with the subnets. | `string` | `null` | no |

| network\_security\_group\_rg | The Network Security Group RG to associate with the subnet. Default is the same RG than the subnet. | `string` | `null` | no |

| private\_endpoint\_network\_policies | Enable or disable network policies for the private endpoint on the subnet. Possible values are `Disabled`, `Enabled`, `NetworkSecurityGroupEnabled` and `RouteTableEnabled`. | `string` | `null` | no |

| private\_link\_endpoint\_enabled | Enable or disable network policies for the Private Endpoint on the subnet. | `bool` | `true` | no |

| private\_link\_service\_enabled | Enable or disable network policies for the Private Link Service on the subnet. | `bool` | `null` | no |

| resource\_group\_name | Resource group name. | `string` | n/a | yes |

| route\_table\_name | The Route Table name to associate with the subnet. | `string` | `null` | no |

| route\_table\_rg | The Route Table RG to associate with the subnet. Default is the same RG than the subnet. | `string` | `null` | no |

| service\_endpoint\_policy\_ids | The list of IDs of Service Endpoint Policies to associate with the subnet. | `list(string)` | `null` | no |

| service\_endpoints | The list of Service endpoints to associate with the subnet. | `list(string)` | `[]` | no |

| stack | Project stack name. | `string` | n/a | yes |

| virtual\_network\_name | Virtual network name. | `string` | n/a | yes |

## Outputs

| Name | Description |

|------|-------------|

| cidrs | CIDR list of the created subnets. |

| cidrs\_map | Map with names and CIDRs of the created subnets. |

| id | ID of the created subnet. |

| ips | The collection of IPs within this subnet. |

| name | Name of the created subnet. |

| nsg\_association | Subnet network security group association resource object. |

| nsg\_association\_id | Subnet network security group association ID. |

| resource | Subnet resource object. |

| rt\_association | Subnet route table association resource object. |

| rt\_association\_id | Subnet route table association ID. |

## Related documentation

Microsoft Azure documentation: [docs.microsoft.com/en-us/azure/virtual-network/virtual-network-manage-subnet](https://docs.microsoft.com/en-us/azure/virtual-network/virtual-network-manage-subnet)

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