fix 101-web-app-linux-java example (#174)

quickstart/101-web-app-linux-java/app_service.tf

@@ -1,24 +1,24 @@
 
 resource "azurerm_app_service_plan" "default" {
-  name                = "${var.name}-plan"
-  location            = "${azurerm_resource_group.default.location}"
-  resource_group_name = "${azurerm_resource_group.default.name}"
+  name                = "${random_pet.prefix.id}-plan"
+  location            = azurerm_resource_group.default.location
+  resource_group_name = azurerm_resource_group.default.name
   kind                = "Linux"
 
   # Reserved must be set to true for Linux App Service Plans
   reserved = true
 
   sku {
-    tier = "${var.plan_tier}"
-    size = "${var.plan_sku}"
+    tier = var.plan_tier
+    size = var.plan_sku
   }
 }
 
-resource "azurerm_app_service" "default" {
-  name                = "${var.dns_prefix}-${var.name}-${var.environment}-app"
-  location            = "${azurerm_resource_group.default.location}"
-  resource_group_name = "${azurerm_resource_group.default.name}"
-  app_service_plan_id = "${azurerm_app_service_plan.default.id}"
+resource "azurerm_app_service" "main" {
+  name                = "${var.dns_prefix}-${random_pet.prefix.id}-${var.environment}-app"
+  location            = azurerm_resource_group.default.location
+  resource_group_name = azurerm_resource_group.default.name
+  app_service_plan_id = azurerm_app_service_plan.default.id
 
   site_config {
     always_on        = true

quickstart/101-web-app-linux-java/main.tf

@@ -1,8 +1,9 @@
-provider "azurerm" {
-  version = "=1.36.0"
+resource "azurerm_resource_group" "default" {
+  name     = "${random_pet.prefix.id}-${var.environment}-rg"
+  location = var.location
 }
 
-resource "azurerm_resource_group" "default" {
-  name     = "${var.name}-${var.environment}-rg"
-  location = "${var.location}"
-}
+resource "random_pet" "prefix" {
+  prefix = var.prefix
+  length = 2
+}

quickstart/101-web-app-linux-java/providers.tf

@@ -0,0 +1,18 @@
+terraform {
+  required_version = ">= 1.0"
+
+  required_providers {
+    azurerm = {
+      source  = "hashicorp/azurerm"
+      version = ">= 3.0, < 4.0"
+    }
+    random = {
+      source  = "hashicorp/random"
+      version = ">= 3.0"
+    }
+  }
+}
+
+provider "azurerm" {
+  features {}
+}

quickstart/101-web-app-linux-java/variables.tf

@@ -1,35 +1,35 @@
-variable "name" {
-  type        = "string"
-  description = "Location of the azure resource group."
-  default     = "demo-tfquickstart"
+variable "prefix" {
+  type        = string
+  default     = "web-app-linux-java"
+  description = "Prefix of the resource name"
 }
 
 variable "environment" {
-  type        = "string"
+  type        = string
   description = "Name of the deployment environment"
   default     = "dev"
 }
 
 variable "location" {
-  type        = "string"
+  type        = string
   description = "Location to deploy the resource group"
-  default     = "West US 2"
+  default     = "eastus"
 }
 
 variable "dns_prefix" {
-  type        = "string"
+  type        = string
   description = "A prefix for any dns based resources"
   default     = "tfq"
 }
 
 variable "plan_tier" {
-  type        = "string"
+  type        = string
   description = "The tier of app service plan to create"
   default     = "Standard"
 }
 
 variable "plan_sku" {
-  type        = "string"
+  type        = string
   description = "The sku of app service plan to create"
   default     = "S1"
 }