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terraform-azurerm-loadbalancer

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A terraform module to provide load balancers in Azure with the following characteristics:

  • Ability to specify public or private loadbalancer using: var.type. Default is public.
  • Specify subnet to use for the loadbalancer: frontend_subnet_id
  • For private loadbalancer, specify the private ip address usingfrontend_private_ip_address
  • Specify the type of the private ip address with frontend_private_ip_address_allocation, Dynamic or Static , default is Dynamic

Usage in Terraform 0.13

Public loadbalancer example:

provider "azurerm" {
  features {}
}

resource "azurerm_resource_group" "example" {
  name     = "example-lb"
  location = "West Europe"
}

module "mylb" {
  source              = "Azure/loadbalancer/azurerm"
  resource_group_name = azurerm_resource_group.example.name
  name                = "lb-terraform-test"
  pip_name            = "pip-terraform-test"

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

  lb_port = {
    http = ["80", "Tcp", "80"]
  }

  lb_probe = {
    http = ["Tcp", "80", ""]
  }

  depends_on = [azurerm_resource_group.example]
}

Usage in Terraform 0.12

Public loadbalancer example:

provider "azurerm" {
  features {}
}

resource "azurerm_resource_group" "example" {
  name     = "example-lb"
  location = "West Europe"
}

module "mylb" {
  source              = "Azure/loadbalancer/azurerm"
  resource_group_name = azurerm_resource_group.example.name
  prefix              = "terraform-test"

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

  lb_port = {
    http = ["80", "Tcp", "80"]
  }

  lb_probe = {
    http = ["Tcp", "80", ""]
  }

}

Private loadbalancer example:

provider "azurerm" {
  features {}
}

resource "azurerm_resource_group" "example" {
  name     = "example-lb"
  location = "West Europe"
}

module "mylb" {
  source                                 = "Azure/loadbalancer/azurerm"
  resource_group_name                    = azurerm_resource_group.example.name
  type                                   = "private"
  frontend_subnet_id                     = module.network.vnet_subnets[0]
  frontend_private_ip_address_allocation = "Static"
  frontend_private_ip_address            = "10.0.1.6"
  lb_sku                                 = "Standard"
  pip_sku                                = "Standard" #`pip_sku` must match `lb_sku` 

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

  lb_port = {
    http  = ["80", "Tcp", "80"]
    https = ["443", "Tcp", "443"]
  }

  lb_probe = {
    http  = ["Tcp", "80", ""]
    http2 = ["Http", "1443", "/"]
  }

  tags = {
    cost-center = "12345"
    source      = "terraform"
  }
}

module "network" {
  source              = "Azure/network/azurerm"
  resource_group_name = azurerm_resource_group.example.name
  address_space       = "10.0.0.0/16"
  subnet_prefixes     = ["10.0.1.0/24", "10.0.2.0/24", "10.0.3.0/24"]
  subnet_names        = ["subnet1", "subnet2", "subnet3"]

  tags = {
    environment = "dev"
    costcenter  = "it"
  }
}

Test

Configurations

We provide 2 ways to build, run, and test the module on a local development machine. Native (Mac/Linux) or Docker.

Native(Mac/Linux)

Prerequisites

Environment setup

We provide simple script to quickly set up module development environment:

$ curl -sSL https://raw.githubusercontent.com/Azure/terramodtest/master/tool/env_setup.sh | sudo bash

Run test

Then simply run it in local shell:

$ cd $GOPATH/src/{directory_name}/
$ bundle install
$ rake build
$ rake e2e

Docker

We provide a Dockerfile to build a new image based FROM the microsoft/terraform-test Docker hub image which adds additional tools / packages specific for this module (see Custom Image section). Alternatively use only the microsoft/terraform-test Docker hub image by using these instructions.

Prerequisites

Custom Image

This builds the custom image:

$ docker build --build-arg BUILD_ARM_SUBSCRIPTION_ID=$ARM_SUBSCRIPTION_ID --build-arg BUILD_ARM_CLIENT_ID=$ARM_CLIENT_ID --build-arg BUILD_ARM_CLIENT_SECRET=$ARM_CLIENT_SECRET --build-arg BUILD_ARM_TENANT_ID=$ARM_TENANT_ID -t azure-loadbalancer .

This runs the build and unit tests:

$ docker run --rm azure-loadbalancer /bin/bash -c "bundle install && rake build"

This runs the end to end tests:

$ docker run --rm azure-loadbalancer /bin/bash -c "bundle install && rake e2e"

This runs the full tests:

$ docker run --rm azure-loadbalancer /bin/bash -c "bundle install && rake full"

Authors

Originally created by David Tesar

License

MIT

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Terraform Azure RM Module for Load Balancer

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