Azure Front Door overview - Commands & Configuration

Introduction

When you have websites or apps that many people use worldwide, you want them to load fast and stay online even if some servers have problems. Azure Front Door helps by directing users to the closest and healthiest server, making your app faster and more reliable.

When you want your website to load quickly for users in different countries by sending them to the nearest server.

When you want to keep your app running smoothly even if one server goes down by automatically switching to a backup.

When you want to protect your app from sudden traffic spikes or attacks by filtering and controlling incoming requests.

When you want to manage traffic across multiple cloud regions to improve performance and availability.

When you want to simplify your app's URL by using a single global endpoint that routes traffic intelligently.

Commands

This command creates a new Azure Front Door named 'myFrontDoor' in the resource group 'myResourceGroup' and sets 'myapp.azurewebsites.net' as the backend server where traffic will be sent.

Terminal

az network front-door create --name myFrontDoor --resource-group myResourceGroup --backend-address myapp.azurewebsites.net

Expected Output

{

  "id": "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/myResourceGroup/providers/Microsoft.Network/frontDoors/myFrontDoor",

  "name": "myFrontDoor",

  "resourceGroup": "myResourceGroup",

  "type": "Microsoft.Network/frontDoors",

  "backendPools": [

    {

      "name": "defaultBackendPool",

      "backends": [

        {

          "address": "myapp.azurewebsites.net",

          "enabledState": "Enabled"

        }

      ]

    }

  ],

  "frontendEndpoints": [

    {

      "name": "defaultFrontendEndpoint",

      "hostName": "myFrontDoor.azurefd.net"

    }

  ]

}

→

--name - Sets the name of the Front Door instance.

→

--resource-group - Specifies the Azure resource group to use.

→

--backend-address - Defines the backend server address where traffic is routed.

This command shows the details of the Azure Front Door named 'myFrontDoor' to verify it was created correctly and to see its configuration.

Terminal

az network front-door show --name myFrontDoor --resource-group myResourceGroup

Expected Output

{

  "id": "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/myResourceGroup/providers/Microsoft.Network/frontDoors/myFrontDoor",

  "name": "myFrontDoor",

  "resourceGroup": "myResourceGroup",

  "frontendEndpoints": [

    {

      "name": "defaultFrontendEndpoint",

      "hostName": "myFrontDoor.azurefd.net"

    }

  ],

  "backendPools": [

    {

      "name": "defaultBackendPool",

      "backends": [

        {

          "address": "myapp.azurewebsites.net",

          "enabledState": "Enabled"

        }

      ]

    }

  ]

}

→

--name - Specifies the Front Door name to show.

→

--resource-group - Specifies the resource group of the Front Door.

This command shows the frontend endpoint details, including the URL users will access to reach your app through Azure Front Door.

Terminal

az network front-door frontend-endpoint show --front-door-name myFrontDoor --name defaultFrontendEndpoint --resource-group myResourceGroup

Expected Output

{

  "name": "defaultFrontendEndpoint",

  "hostName": "myFrontDoor.azurefd.net",

  "sessionAffinityEnabledState": "Disabled",

  "webApplicationFirewallPolicyLink": null

}

→

--front-door-name - Specifies the Front Door instance name.

→

--name - Specifies the frontend endpoint name.

→

--resource-group - Specifies the resource group.

Key Concept

If you remember nothing else from this pattern, remember: Azure Front Door directs users to the fastest and healthiest server worldwide to keep your app fast and reliable.

Common Mistakes

Using a backend address that is not reachable or does not exist.

Azure Front Door cannot route traffic to a backend that is offline or incorrectly named, causing failures.

Always verify the backend server address is correct and accessible before creating the Front Door.

Not specifying the correct resource group when running commands.

Commands will fail or show no results if the resource group does not match where the Front Door is created.

Double-check the resource group name in all commands to ensure they target the right resources.

Summary

Create Azure Front Door with a backend server to route traffic globally.

Check the Front Door configuration to confirm it is set up correctly.

View the frontend endpoint URL that users will use to access your app.