Map a custom domain to a web app

This sample script creates a web app in App Service with its related resources, and then maps www.<yourdomain> to it.

If you don't have an Azure subscription, create a free account before you begin.

Launch Azure Cloud Shell

The Azure Cloud Shell is a free Bash shell that you can run directly within the Azure portal. It has the Azure CLI preinstalled and configured to use with your account. Click the Cloud Shell button on the menu in the upper-right of the Azure portal.

Cloud Shell

The button launches an interactive shell that you can use to run the steps in this topic:

Screenshot showing the Cloud Shell window in the portal

If you choose to install and use the CLI locally, this topic requires that you are running the Azure CLI version 2.0 or later. Run az --version to find the version. If you need to install or upgrade, see Install Azure CLI 2.0.

Sample script

#!/bin/bash

fqdn=<Replace with www.{yourdomain}>
webappname=mywebapp$RANDOM

# Create a resource group.
az group create --location westeurope --name myResourceGroup

# Create an App Service plan in SHARED tier (minimum required by custom domains).
az appservice plan create --name $webappname --resource-group myResourceGroup --sku SHARED

# Create a web app.
az webapp create --name $webappname --resource-group myResourceGroup \
--plan $webappname

echo "Configure a CNAME record that maps $fqdn to $webappname.azurewebsites.net"
read -p "Press [Enter] key when ready ..."

# Before continuing, go to your DNS configuration UI for your custom domain and follow the 
# instructions at https://aka.ms/appservicecustomdns to configure a CNAME record for the 
# hostname "www" and point it your web app's default domain name.

# Map your prepared custom domain name to the web app.
az webapp config hostname add --webapp-name $webappname --resource-group myResourceGroup \
--hostname $fqdn

echo "You can now browse to http://$fqdn"

Clean up deployment

After the script sample has been run, the follow command can be used to remove the resource group and all resources associated with it.

az group delete --name myResourceGroup

Script explanation

This script uses the following commands. Each command in the table links to command specific documentation.

Command Notes
az group create Creates a resource group in which all resources are stored.
az appservice plan create Creates an App Service plan.
az webapp create Creates an Azure web app.
az webapp config hostname add Maps a custom domain to a web app.

Next steps

For more information on the Azure CLI, see Azure CLI documentation.

Additional App Service CLI script samples can be found in the Azure App Service documentation.