This proof of concept implements a 3 region multi path website controlled by Traffic Manager to route traffic to the proper location.
Architecture Diagram
This proof of concept uses the following Azure load-balancing and services portfolio: Traffic Manager, Application Gateway, App Service Plan, and Web Apps.
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Traffic Manager provides global DNS load balancing. It looks at incoming DNS requests and responds with a healthy endpoint. Performance is the currently selected routing option.
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Application Gateway provides the delivery controller using the Layer 7 load balancing capabilities to route traffic based on the URI to different Web Apps.
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App Services provides the hosting of the Web App and API App.
The following design goals were achieved by this POC.
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Multi-geo redundancy: If one region goes down, Traffic Manager routes traffic seamlessly to the closest region without any involvment from the application owner.
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Reduced Latency: Traffic Manager automatically directs the customer to the closet region
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Application Seperation: The application is deployed as seperate websites but are presented as a single website and solves for complex CORS rules and presents the ability to do SSL offloading.
Note: This proof of concept automatically deploys a small hello world sample PHP app to the web and api sites to show what backend is delivering the content.
Automatically Deploy the Solution:
Manually Deploy the Solution:
# Azure CLI Instructions
az group create --name demo --location southcentralus
az group deployment create --name appgw-path-demo `
--template-file azuredeploy.json `
--resource-group demo
# Azure Powershell Instructions
New-AzureRmResourceGroup -Name demo -Location southcentralus
New-AzureRmResourceGroupDeployment -Name appgw-path-demo `
-TemplateFile azuredeploy.json `
-ResourceGroupName demo