Scale an App Service app worldwide with a high-availability architecture using Azure CLI

This sample script creates a resource group, two App Service plans, two apps, a traffic manager profile, and two traffic manager endpoints. Once the exercise is complete, you have a high-available architecture, which provides global availability of your app based on the lowest network latency.

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

Use Azure Cloud Shell

Azure hosts Azure Cloud Shell, an interactive shell environment that you can use through your browser. Cloud Shell lets you use either bash or PowerShell to work with Azure services. You can use the Cloud Shell pre-installed commands to run the code in this article without having to install anything on your local environment.

To launch Azure Cloud Shell:

Option Example/Link
Select Try It in the upper-right corner of a code block. Selecting Try It doesn't automatically copy the code to Cloud Shell. Example of Try It for Azure Cloud Shell
Go to https://shell.azure.com or select the Launch Cloud Shell button to open Cloud Shell in your browser.
Select the Cloud Shell button on the top-right menu bar in the Azure portal. Cloud Shell button in the Azure portal

To run the code in this article in Azure Cloud Shell:

  1. Launch Cloud Shell.
  2. Select the Copy button on a code block to copy the code.
  3. Paste the code into the Cloud Shell session with Ctrl+Shift+V on Windows and Linux, or Cmd+Shift+V on macOS.
  4. Press Enter to run the code.

If you choose to install and use the CLI locally, you need Azure CLI version 2.0 or later. To find the version, run az --version. If you need to install or upgrade, see Install the Azure CLI.

Sample script

#/bin/bash

# Variables
trafficManagerDnsName="myDnsName$random"
app1Name="AppServiceTM1$random"
app2Name="AppServiceTM2$random"
location1="WestUS"
location2="EastUS"

# Create a Resource Group
az group create --name myResourceGroup --location $location1

# Create a Traffic Manager Profile
az network traffic-manager profile create --name $trafficManagerDnsName-tmp --resource-group myResourceGroup --routing-method Performance --unique-dns-name $trafficManagerDnsName

# Create App Service Plans in two Regions
az appservice plan create --name $app1Name-Plan --resource-group myResourceGroup --location $location1 --sku S1
az appservice plan create --name $app2Name-Plan --resource-group myResourceGroup --location $location2 --sku S1

# Add a Web App to each App Service Plan
site1=$(az webapp create --name $app1Name --plan $app1Name-Plan --resource-group myResourceGroup --query id --output tsv)
site2=$(az webapp create --name $app2Name --plan $app2Name-Plan --resource-group myResourceGroup --query id --output tsv)

# Assign each Web App as an Endpoint for high-availabilty
az network traffic-manager endpoint create -n $app1Name-$location1 --profile-name $trafficManagerDnsName-tmp -g myResourceGroup --type azureEndpoints --target-resource-id $site1
az network traffic-manager endpoint create -n $app2Name-$location2 --profile-name $trafficManagerDnsName-tmp -g myResourceGroup --type azureEndpoints --target-resource-id $site2

Clean up deployment

After the sample script has been run, the following 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 to create a resource group, App Service app, traffic manager profile, and all related resources. 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 App Service app.
az network traffic-manager profile create Creates an Azure Traffic Manager profile.
az network traffic-manager endpoint create Adds an endpoint to an Azure Traffic Manager Profile.

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.