Azure Load Balancer Terraform Module

A terraform module to provide load balancers in Azure.

Usage

Public loadbalancer example:

resource "azurerm_resource_group" "main" {
  name     = var.resource_group_name
  location = "westus"

  tags = {
    environment = "nonprod"
    costcenter  = "12345"
    ppm         = "N/A"
    fgid        = "1234"
    appname     = "myapp"
  }
}

module "public-lb" {
  source              = "highwayoflife/terraform-azurerm-load-balancer"
  type                = "Public"
  resource_group_name = azurerm_resource_group.main.name
  prefix              = "terraform-test"

  remote_port = {
    ssh = ["Tcp", "22"]
  }

  lb_port = {
    http = ["443", "Tcp", "443"]
  }

  depends_on = {
    azurerm_resource_group.main
  }
}

Private Load Balancer Example:

resource "azurerm_resource_group" "group" {
  name     = var.resource_group_name
  location = "westus"

  tags = {
    environment = "nonprod"
    costcenter  = "12345"
    ppm         = "N/A"
    fgid        = "1234"
    appname     = "myapp"
  }
}

data "azurerm_subnet" "subnet" {
  name                 = var.subnet_name
  virtual_network_name = var.vnet_name
  resource_group_name  = var.vnet_resource_group_name
}

module "private-lb" {
  source              = "highwayoflife/terraform-azurerm-load-balancer"
  type                = "private"
  prefix              = "MyTerraformLB"
  resource_group_name = azurerm_resource_group.rg.name
  subnet_id           = data.azurerm_subnet.subnet.id

  # Define a static IP, if empty or not defined, IP will be dynamic
  private_ip_address = "10.0.1.6"

  remote_port = {
    ssh = ["Tcp", "22"]
  }

  lb_port = {
    https = ["443", "Tcp", "443"]
  }

  depends_on = {
    azurerm_resource_group.group
  }
}

Requirements

Name	Version
terraform	>= 0.13

Providers

Name	Version
azurerm	n/a

Modules

No modules.

Resources

Name	Type
azurerm_lb.lb	resource
azurerm_lb_backend_address_pool.azlb	resource
azurerm_lb_nat_rule.azlb	resource
azurerm_lb_probe.azlb	resource
azurerm_lb_rule.azlb	resource
azurerm_public_ip.ip	resource
azurerm_resource_group.group	data source

Inputs

Name	Description	Type	Default	Required
prefix	(Required) Default prefix to use with your resource names.	string	n/a	yes
resource_group_name	(Required) The name of the existing resource group where the load balancer resources will be placed.	string	n/a	yes
frontend_name	(Optional) Specifies the name of the frontend ip configuration.	string	"FrontendIP"	no
lb_port	Protocols to be used for lb health probes and rules. [frontend_port, protocol, backend_port]	map(list(string))	{}	no
lb_probe_interval	Interval in seconds the load balancer health probe rule does a check	number	5	no
lb_probe_unhealthy_threshold	(Optional) Number of times the load balancer health probe has an unsuccessful attempt before considering the endpoint unhealthy. Default = 2.	number	2	no
location	(Optional) The location/region where the load balancer will be created. If not provided, will use the location of the resource group.	string	""	no
private_ip_address	(Optional) Private ip address to assign to frontend. Use it with type = private	string	""	no
remote_port	Protocols to be used for remote vm access. [protocol, backend_port]. Frontend port will be automatically generated starting at 50000 and in the output.	map(list(string))	{}	no
subnet_id	(Optional) Frontend subnet id to use when in private mode	string	""	no
tags	(optional) Tags to use in addition to tags assigned to the resource group.	map(string)	{ "source": "terraform" }	no
type	(Optional) Defined if the loadbalancer is private or public. Default private.	string	"private"	no

Outputs

Name	Description
lb_backend_address_pool_id	The id for the azurerm_lb_backend_address_pool resource
lb_frontend_ip_configuration	The frontend_ip_configuration for the azurerm_lb resource
lb_id	The id for the azurerm_lb resource
lb_nat_rule_ids	The ids for the azurerm_lb_nat_rule resources
lb_private_ip_address	The first private IP address assigned to the load balancer in frontend_ip_configuration blocks, if any.
lb_probe_ids	The ids for the azurerm_lb_probe resources
public_ip_address	The ip address for the azurerm_lb_public_ip resource
public_ip_id	The id for the azurerm_lb_public_ip resource

Contributors

• David Lewis
• Originally based on terraform-azurerm-loadbalancer by David Tesar

License

MIT