Route traffic for high availability of applications - Azure CLI

This script creates a resource group, two app service plans, two web apps, a traffic manager profile, and two traffic manager endpoints. Traffic Manager directs traffic to the application in one region as the primary region, and to the secondary region when the application in the primary region is unavailable. Before executing the script, you must change the MyWebApp, MyWebAppL1 and MyWebAppL2 values to unique values across Azure. After running the script, you can access the app in the primary region with the URL mywebapp.trafficmanager.cn.

To run this sample, install the latest version of the Azure CLI. To start, run az login to create a connection with Azure.

Samples for the Azure CLI are written for the bash shell. To run this sample in Windows PowerShell or Command Prompt, you may need to change elements of the script.

If you don't have an Azure trial subscription, create an Azure trial subscription before you begin.

Sample script

#!/bin/bash

RgName1="MyResourceGroup1"
RgName2="MyResourceGroup2"
Location1="chinanorth"
Location2="chinanorth"

# The values of the variables below must be unique (replace with your own names).
WebApp="MyWebApp"
WebAppL1="MyWebAppL1"
WebAppL2="MyWebAppL2"

# Create a resource group in location one.
az group create \
  --name $RgName1 \
  --location $Location1

# Create a resource group in location two.
az group create \
  --name $RgName2 \
  --location $Location2

# Create a website deployed from GitHub in both regions (replace with your own GitHub URL).
gitrepo="https://github.com/Azure-Samples/app-service-web-dotnet-get-started.git"

# Create a hosting plan and website and deploy it in location one (requires Standard 1 minimum SKU).
az appservice plan create \
  --name $WebAppL1 \
  --resource-group $RgName1 \
  --sku S1
az webapp create \
  --name $WebAppL1 \
  --resource-group $RgName1 \
  --plan $WebAppL1
az webapp deployment source config \
  --name $WebAppL1 \
  --resource-group $RgName1 \
  --repo-url $gitrepo \
  --branch master \
  --manual-integration

# Create a hosting plan and website and deploy it in chinanorth (requires Standard 1 minimum SKU).
az appservice plan create \
  --name $WebAppL2 \
  --resource-group $RgName2 \
  --sku S1
az webapp create \
  --name $WebAppL2 \
  --resource-group $RgName2 \
  --plan $WebAppL2
az webapp deployment source config \
  --name $WebAppL2 \
  --resource-group $RgName2 \
  --repo-url $gitrepo \
  --branch master --manual-integration

# Create a Traffic Manager profile.
az network traffic-manager profile create \
  --name MyTrafficManagerProfile \
  --resource-group $RgName1 \
  --routing-method Priority \
  --unique-dns-name $WebApp

# Create an endpoint for the location one website deployment and set it as the priority target.
L1Id=$(az webapp show \
  --resource-group $RgName1 \
  --name $WebAppL1 \
  --query id \
  --out tsv)
az network traffic-manager endpoint create \
  --name MyEndPoint1 \
  --profile-name MyTrafficManagerProfile \
  --resource-group $RgName1 \
  --type azureEndpoints \
  --priority 1 \
  --target-resource-id $L1Id

# Create an endpoint for the location two website deployment and set it as the secondary target.
L2Id=$(az webapp show \
  --resource-group $RgName2 \
  --name $WebAppL2 \
  --query id --out tsv)
az network traffic-manager endpoint create \
  --name MyEndPoint2 \
  --profile-name MyTrafficManagerProfile \
  --resource-group $RgName1 \
  --type azureEndpoints \
  --priority 2 \
  --target-resource-id $L2Id

Clean up deployment

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

az group delete --name myResourceGroup1 --yes
az group delete --name myResourceGroup2 --yes

Script explanation

This script uses the following commands to create a resource group, web app, traffic manager profile, and all related resources. Each command in the table links to command specific documentation.

Next steps

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