provider/azurerm: Add example of traffic manager (#14337)

* initial commit - 101-vm-from-user-image

* changed branch name

* not deploying - storage problems

* provisions vm but image not properly prepared

* storage not correct

* provisions properly

* changed main.tf to azuredeploy.tf

* added tfvars and info for README

* tfvars ignored and corrected file ext

* added CI config; added sane defaults for variables; updated deployment script, added mac specific deployment for local testing

* deploy.sh to be executable

* executable deploy files

* added CI files; changed vars

* prep for PR

* removal of old folder

* prep for PR

* wrong args for travis

* more PR prep

* updated README

* commented out variables in terraform.tfvars

* Topic 101 vm from user image (#2)

* initial commit - 101-vm-from-user-image
* added tfvars and info for README
* added CI config; added sane defaults for variables; updated deployment script, added mac specific deployment for local testing
* prep for PR

* added new template

* oops, left off master

* prep for PR

* correct repository for destination

* renamed scripts to be more intuitive; added check for docker

* merge vm simple; vm from image

* initial commit

* deploys locally

* updated deploy

* consolidated deploy and after_deploy into a single script; simplified ci process; added os_profile_linux_config

* added terraform show

* changed to allow http & https (like ARM tmplt)

* changed host_name & host_name variable desc

* added az cli check

* on this branch, only build test_dir; master will aggregate all the examples

* merge master

* added new constructs/naming for deploy scripts, etc.

* suppress az login output

* suppress az login output

* forgot about line breaks

* breaking build as an example

* fixing broken build example

* work in progress

* merge of CI config

* fixed grammar in readme

* prep for PR

* deploys locally

* deploys locally

* small README change

* took out armviz button and minor README changes

* changed host_name

* fixed merge conflicts

* changed host_name variable

* updating Hashicorp's changes to merged simple linux branch

* updating files to merge w/master and prep for Hashicorp pr

* Revert "updating files to merge w/master and prep for Hashicorp pr"

This reverts commit b850cd5d2a858eff073fc5a1097a6813d0f8b362.

* Revert "updating Hashicorp's changes to merged simple linux branch"

This reverts commit dbaf8d14a9cdfcef0281919671357f6171ebd4e6.

* added provider to main.tf

* took out armviz button; resolved conflicts in .travis.yml

* removing vm from user image example from this branch

* removed old branch

* azure-2-vms-loadbalancer-lbrules (#13)

* initial commit

* need to change lb_rule & nic

* deploys locally

* updated README

* updated travis and deploy scripts for Hari's repo

* renamed deploy script

* clean up

* prep for PR

* updated readme

* fixing conflict in .travis.yml

* add CI build tag

* azure-traffic-manager-vm (#17)

adding example of azure traffic manager

* prepped for Hashicorp PR

* merging with hashicorp master

examples/azure-cdn-with-storage-account/deploy.ci.sh

@@ -26,4 +26,4 @@ docker run --rm -it \
   --workdir=/data \
   --entrypoint "/bin/sh" \
   hashicorp/terraform:light \
-  -c "/bin/terraform destroy -force -var resource_group=$KEY;"
+  -c "/bin/terraform destroy -force -var resource_group=$KEY;"

examples/azure-traffic-manager-vm/README.md

@@ -0,0 +1,29 @@
+# Azure Traffic Manager with virtual machines
+
+This Terraform template was based on [this](https://github.com/Azure/azure-quickstart-templates/tree/master/201-traffic-manager-vm) Azure Quickstart Template. Changes to the ARM template that may have occurred since the creation of this example may not be reflected here.
+
+This template shows how to create an Azure Traffic Manager profile to load-balance across a couple of Azure virtual machines. Each endpoint has an equal weight but different weights can be specified to distribute load non-uniformly.
+
+See also:
+
+- <a href="https://azure.microsoft.com/en-us/documentation/articles/traffic-manager-routing-methods/">Traffic Manager routing methods</a> for details of the different routing methods available.
+- <a href="https://msdn.microsoft.com/en-us/library/azure/mt163581.aspx">Create or update a Traffic Manager profile</a> for details of the JSON elements relating to a Traffic Manager profile.
+
+## main.tf
+The `main.tf` file contains the actual resources that will be deployed. It also contains the Azure Resource Group definition and any defined variables.
+
+## outputs.tf
+This data is outputted when `terraform apply` is called, and can be queried using the `terraform output` command.
+
+## provider.tf
+Azure requires that an application is added to Azure Active Directory to generate the `client_id`, `client_secret`, and `tenant_id` needed by Terraform (`subscription_id` can be recovered from your Azure account details). Please go [here](https://www.terraform.io/docs/providers/azurerm/) for full instructions on how to create this to populate your `provider.tf` file.
+
+## terraform.tfvars
+If a `terraform.tfvars` file is present in the current directory, Terraform automatically loads it to populate variables. We don't recommend saving usernames and password to version control, but you can create a local secret variables file and use `-var-file` to load it.
+
+If you are committing this template to source control, please insure that you add this file to your `.gitignore` file.
+
+## variables.tf
+The `variables.tf` file contains all of the input parameters that the user can specify when deploying this Terraform template.
+
+![`terraform graph`](/examples/azure-traffic-manager-vm/graph.png)

examples/azure-traffic-manager-vm/deploy.ci.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+set -o errexit -o nounset
+
+docker run --rm -it \
+  -e ARM_CLIENT_ID \
+  -e ARM_CLIENT_SECRET \
+  -e ARM_SUBSCRIPTION_ID \
+  -e ARM_TENANT_ID \
+  -v $(pwd):/data \
+  --workdir=/data \
+  --entrypoint "/bin/sh" \
+  hashicorp/terraform:light \
+  -c "/bin/terraform get; \
+      /bin/terraform validate; \
+      /bin/terraform plan -out=out.tfplan -var dns_name=$KEY -var resource_group=$KEY -var admin_password=$PASSWORD; \
+      /bin/terraform apply out.tfplan; \
+      /bin/terraform show;"
+
+# cleanup deployed azure resources via azure-cli
+docker run --rm -it \
+  azuresdk/azure-cli-python \
+  sh -c "az login --service-principal -u $ARM_CLIENT_ID -p $ARM_CLIENT_SECRET --tenant $ARM_TENANT_ID > /dev/null; \
+         az vm show -g $KEY -n rgvm"
+
+# cleanup deployed azure resources via terraform
+docker run --rm -it \
+  -e ARM_CLIENT_ID \
+  -e ARM_CLIENT_SECRET \
+  -e ARM_SUBSCRIPTION_ID \
+  -e ARM_TENANT_ID \
+  -v $(pwd):/data \
+  --workdir=/data \
+  --entrypoint "/bin/sh" \
+  hashicorp/terraform:light \
+  -c "/bin/terraform destroy -force -var dns_name=$KEY -var resource_group=$KEY -var admin_password=$PASSWORD;"

examples/azure-traffic-manager-vm/deploy.mac.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -o errexit -o nounset
+
+if docker -v; then
+
+  # generate a unique string for CI deployment
+  export KEY=$(cat /dev/urandom | env LC_CTYPE=C tr -cd 'a-z' | head -c 12)
+  export PASSWORD=$KEY$(cat /dev/urandom | env LC_CTYPE=C tr -cd 'A-Z' | head -c 2)$(cat /dev/urandom | env LC_CTYPE=C tr -cd '0-9' | head -c 2)
+
+  /bin/sh ./deploy.ci.sh
+
+else
+  echo "Docker is used to run terraform commands, please install before run:  https://docs.docker.com/docker-for-mac/install/"
+fi

examples/azure-traffic-manager-vm/main.tf

@@ -0,0 +1,125 @@
+# provider "azurerm" {
+#   subscription_id = "REPLACE-WITH-YOUR-SUBSCRIPTION-ID"
+#   client_id       = "REPLACE-WITH-YOUR-CLIENT-ID"
+#   client_secret   = "REPLACE-WITH-YOUR-CLIENT-SECRET"
+#   tenant_id       = "REPLACE-WITH-YOUR-TENANT-ID"
+# }
+
+resource "azurerm_resource_group" "rg" {
+  name     = "${var.resource_group}"
+  location = "${var.location}"
+}
+
+resource "azurerm_public_ip" "pip" {
+  name                         = "ip${count.index}"
+  location                     = "${var.location}"
+  resource_group_name          = "${azurerm_resource_group.rg.name}"
+  public_ip_address_allocation = "dynamic"
+  domain_name_label            = "${var.dns_name}${count.index}"
+  count                        = "${var.num_vms}"
+}
+
+resource "azurerm_virtual_network" "vnet" {
+  name                = "${var.vnet}"
+  location            = "${var.location}"
+  address_space       = ["${var.address_space}"]
+  resource_group_name = "${azurerm_resource_group.rg.name}"
+}
+
+resource "azurerm_subnet" "subnet" {
+  name                 = "${var.subnet_name}"
+  virtual_network_name = "${azurerm_virtual_network.vnet.name}"
+  resource_group_name  = "${azurerm_resource_group.rg.name}"
+  address_prefix       = "${var.subnet_prefix}"
+}
+
+resource "azurerm_network_interface" "nic" {
+  name                = "nic${count.index}"
+  location            = "${var.location}"
+  resource_group_name = "${azurerm_resource_group.rg.name}"
+  count               = "${var.num_vms}"
+
+  ip_configuration {
+    name                          = "ipconfig${count.index}"
+    subnet_id                     = "${azurerm_subnet.subnet.id}"
+    private_ip_address_allocation = "Dynamic"
+    public_ip_address_id          = "${element(azurerm_public_ip.pip.*.id, count.index)}"
+  }
+}
+
+resource "azurerm_virtual_machine" "vm" {
+  name                  = "vm${count.index}"
+  location              = "${var.location}"
+  resource_group_name   = "${azurerm_resource_group.rg.name}"
+  vm_size               = "${var.vm_size}"
+  count                 = "${var.num_vms}"
+  network_interface_ids = ["${element(azurerm_network_interface.nic.*.id, count.index)}"]
+
+  storage_image_reference {
+    publisher = "${var.image_publisher}"
+    offer     = "${var.image_offer}"
+    sku       = "${var.image_sku}"
+    version   = "${var.image_version}"
+  }
+
+  storage_os_disk {
+    name          = "osdisk${count.index}"
+    create_option = "FromImage"
+  }
+
+  os_profile {
+    computer_name  = "vm${count.index}"
+    admin_username = "${var.admin_username}"
+    admin_password = "${var.admin_password}"
+  }
+
+  os_profile_linux_config {
+    disable_password_authentication = false
+  }
+}
+
+resource "azurerm_virtual_machine_extension" "ext" {
+  depends_on                 = ["azurerm_virtual_machine.vm"]
+  name                       = "CustomScript"
+  location                   = "${var.location}"
+  resource_group_name        = "${azurerm_resource_group.rg.name}"
+  virtual_machine_name       = "vm${count.index}"
+  publisher                  = "Microsoft.Azure.Extensions"
+  type                       = "CustomScript"
+  type_handler_version       = "2.0"
+  count                      = "${var.num_vms}"
+  auto_upgrade_minor_version = true
+
+  settings = <<SETTINGS
+    {
+        "commandToExecute": "sudo bash -c 'apt-get update && apt-get -y install apache2' "
+    }
+SETTINGS
+}
+
+resource "azurerm_traffic_manager_profile" "profile" {
+  name                   = "trafficmanagerprofile"
+  resource_group_name    = "${azurerm_resource_group.rg.name}"
+  traffic_routing_method = "Weighted"
+
+  dns_config {
+    relative_name = "${azurerm_resource_group.rg.name}"
+    ttl           = 30
+  }
+
+  monitor_config {
+    protocol = "http"
+    port     = 80
+    path     = "/"
+  }
+}
+
+resource "azurerm_traffic_manager_endpoint" "endpoint" {
+  name                = "endpoint${count.index}"
+  resource_group_name = "${azurerm_resource_group.rg.name}"
+  profile_name        = "${azurerm_traffic_manager_profile.profile.name}"
+  target_resource_id  = "${element(azurerm_public_ip.pip.*.id, count.index)}"
+  type                = "azureEndpoints"
+  weight              = 1
+  count               = 3
+}

examples/azure-traffic-manager-vm/outputs.tf

@@ -0,0 +1,3 @@
+output "dns_name" {
+  value = "${var.dns_name}"
+}

examples/azure-traffic-manager-vm/variables.tf

@@ -0,0 +1,71 @@
+variable "resource_group" {
+  description = "The name of the resource group in which to create the virtual network, virtual machines, and traffic manager."
+}
+
+variable "location" {
+  description = "The location/region where the virtual network is created. Changing this forces a new resource to be created."
+  default     = "southcentralus"
+}
+
+variable "dns_name" {
+  description = "Relative DNS name for the traffic manager profile, resulting FQDN will be <uniqueDnsName>.trafficmanager.net, must be globally unique."
+}
+
+variable "vnet" {
+  description = "The name of virtual network"
+  default     = "vnet"
+}
+
+variable "num_vms" {
+  description = "The number of virtual machines you will provision. This variable is also used for NICs and PIPs in this Terraform script."
+  default     = "3"
+}
+
+variable "address_space" {
+  description = "The address space that is used by the virtual network. You can supply more than one address space. Changing this forces a new resource to be created."
+  default     = "10.0.0.0/16"
+}
+
+variable "subnet_name" {
+  description = "The name of the subnet"
+  default     = "subnet"
+}
+
+variable "subnet_prefix" {
+  description = "The address prefix to use for the subnet"
+  default     = "10.0.0.0/24"
+}
+
+variable "vm_size" {
+  description = "The size of the virtual machine"
+  default     = "Standard_D1"
+}
+
+variable "image_publisher" {
+  description = "The name of the publisher of the image (az vm image list)"
+  default     = "Canonical"
+}
+
+variable "image_offer" {
+  description = "The name of the offer (az vm image list)"
+  default     = "UbuntuServer"
+}
+
+variable "image_sku" {
+  description = "The Ubuntu version for the VM. This will pick a fully patched image of this given Ubuntu version. Allowed values: 12.04.5-LTS, 14.04.2-LTS, 15.10."
+  default     = "14.04.2-LTS"
+}
+
+variable "image_version" {
+  description = "the version of the image to apply (az vm image list)"
+  default     = "latest"
+}
+
+variable "admin_username" {
+  description = "Username for virtual machines"
+  default     = "vmadmin"
+}
+
+variable "admin_password" {
+  description = "Password for virtual machines"
+}

examples/azure-vm-simple-linux-managed-disk/README.md

@@ -1,4 +1,4 @@
-# Very simple deployment of a Linux VM
+# Very simple deployment of a Linux VM 
 
 This template allows you to deploy a simple Linux VM using a few different options for the Ubuntu version, using the latest patched version. This will deploy an A0 size VM in the resource group location and return the FQDN of the VM.