Scale a web app manually

In this scenario you will learn to create a resource group, app service plan and web app. You will then scale the App Service Plan from a single instance to multiple instances.

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

# Variables
appName="AppServiceManualScale$random"
location="WestUS"

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

# Create App Service Plans
az appservice plan create --name AppServiceManualScalePlan --resource-group myResourceGroup --location $location --sku B1

# Add a Web App
az webapp create --name $appName --plan AppServiceManualScalePlan --resource-group myResourceGroup

# Scale Web App to 2 Workers
az appservice plan update --number-of-workers 2 --name AppServiceManualScalePlan --resource-group myResourceGroup

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 to create a resource group, web app, 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. This is like a server farm for your Azure web app.
az webapp create Creates an Azure web app.
az appservice plan update Updates properties of the App Service plan.

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.