Scale a web app worldwide with a high-availability architecture

In this scenario you will create a resource group, two app service plans, two web apps, a traffic manager profile, and two traffic manager endpoints. Once the exercise is complete you will have a high-available architecture which allows provides global availability of your web app based on the lowest network latency.

If needed, install the Azure PowerShell using the instruction found in the Azure PowerShell guide, and then run Connect-AzAccount to create a connection with Azure.

Sample script

Note

We recommend that you use the Azure Az PowerShell module to interact with Azure. See Install Azure PowerShell to get started. To learn how to migrate to the Az PowerShell module, see Migrate Azure PowerShell from AzureRM to Az.

# Generates a Random Value
$Random=(New-Guid).ToString().Substring(0,8)

# Variables
$ResourceGroupName="myResourceGroup$Random"
$App1Name="AppServiceTM1$Random"
$App2Name="AppServiceTM2$Random"
$Location1="WestUS"
$Location2="EastUS"

# Create a Resource Group
New-AzResourceGroup -Name $ResourceGroupName -Location $Location1

# Create Traffic Manager Profile
New-AzTrafficManagerProfile -Name "$ResourceGroupName-tmp" -ResourceGroupName $ResourceGroupName -TrafficRoutingMethod Performance -MonitorPath '/' -MonitorProtocol "HTTP" -RelativeDnsName $ResourceGroupName -Ttl 30 -MonitorPort 80

# Create an App Service Plan
New-AzAppservicePlan -Name "$App1Name-Plan" -ResourceGroupName $ResourceGroupName -Location $Location1 -Tier Standard
New-AzAppservicePlan -Name "$App2Name-Plan" -ResourceGroupName $ResourceGroupName -Location $Location2 -Tier Standard

# Create a Web App in the App Service Plan
$App1ResourceId=(New-AzWebApp -Name $App1Name -ResourceGroupName $ResourceGroupName -Location $Location1 -AppServicePlan "$App1Name-Plan").Id
$App2ResourceId=(New-AzWebApp -Name $App2Name -ResourceGroupName $ResourceGroupName -Location $Location2 -AppServicePlan "$App2Name-Plan").Id

# Create Traffic Manager Endpoints for Web Apps
New-AzTrafficManagerEndpoint -Name "$App1Name-$Location1" -ResourceGroupName $ResourceGroupName -ProfileName "$ResourceGroupName-tmp" -Type AzureEndpoints -TargetResourceId $App1ResourceId -EndpointStatus "Enabled"
New-AzTrafficManagerEndpoint -Name "$App2Name-$Location2" -ResourceGroupName $ResourceGroupName -ProfileName "$ResourceGroupName-tmp" -Type AzureEndpoints -TargetResourceId $App2ResourceId -EndpointStatus "Enabled"

Clean up deployment

After the script sample has been run, the following command can be used to remove the resource group, web app, and all related resources.

Remove-AzResourceGroup -Name myResourceGroup -Force

Script explanation

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

Command	Notes
New-AzResourceGroup	Creates a resource group in which all resources are stored.
New-AzTrafficManagerProfile	Creates a Traffic Manager profile.
New-AzAppServicePlan	Creates an App Service plan.
New-AzWebApp	Creates a web app.
New-AzTrafficManagerEndpoint	Creates an endpoint in a Traffic Manager profile.

Next steps

For more information on the Azure PowerShell module, see Azure PowerShell documentation.

Additional Azure PowerShell samples for Azure App Service Web Apps can be found in the Azure PowerShell samples.