To deploy a hot DR site for Azure Functions, we need to enable geo-replication of the Function App to multiple Azure regions. To enable geo-replication of the application, we will need to deploy the same Function App in multiple regions and then use an Azure Traffic Manager to load balance the traffic between the regions.
Azure Traffic Manager is a DNS resolver that will route the traffic to the most appropriate endpoint based on the routing method you select. To learn more about Azure Traffic Manager, please visit the following link:
https://docs.microsoft.com/en-us/azure/traffic-manager/traffic-manager-overview
Currently, you can only use Traffic Manager with Functions deployed under the App Service hosting plan.
Traffic ...
