azure webapp You do not have permission to view this directory or page

Question

Hi I have a simple web app created with terraform, configured with vnet regional integration:

resource "azurerm_app_service" "app-indigo" {
  name                = "app-${var.environment}-${var.app_name}"
  location            = data.azurerm_resource_group.rg.location
  resource_group_name = data.azurerm_resource_group.rg.name
  app_service_plan_id = azurerm_app_service_plan.app-plan.id
  

  site_config {
    dotnet_framework_version = "v4.0"
  } 

resource "azurerm_app_service_virtual_network_swift_connection" "app-indigo-swift" {
  app_service_id = azurerm_app_service.app-app.id
  subnet_id      = data.azurerm_subnet.subnet["integration"].id
}

no matter how I try to access the web app, from internal network or an application gateway, I get the following

You do not have permission to view this directory or page.

and this is the default web-app, no code deployed yet, I'd really appreciate any help here

Answer 1

This error could happen there is a lack of Web.config file in your wwwroot folder. If you leave out the site_config, Terraform will invoke the Azure API to create a default website. This error will disappear.

So you can use code like this:

resource "azurerm_app_service" "app-indigo" {
      name                = "app-${var.environment}-${var.app_name}"
      location            = data.azurerm_resource_group.rg.location
      resource_group_name = data.azurerm_resource_group.rg.name
      app_service_plan_id = azurerm_app_service_plan.app-plan.id         
} 

Alternatively, you could deploy your website including web content. For example, you could create an ASP.NET Framework web app in Azure.

The example provisions a Windows App Service. Other examples of the azurerm_app_service resource can be found in the ./examples/app-service directory within the Github Repository.