Disaster recovery strategy for application gateway/load balancer

WinTechie 281 Reputation points
2023-02-16T18:13:09.32+00:00

Hi,

I have many application gateways, Internal load balancers where lots of endpoints are configured. In the event of region level disaster, I want to make these resources deployed in target region with preserving configurations like listener names, rules, backend settings, probes etc.

I assume frontend public IPs won't be preserved (as it is limited to specific region) hence a new public IP will have to be created and attached and accordingly DNS will have to be updated.

I have explored 2 options here:

  1. Export ARM templates, but during disaster scenarios, expected recovery time objectives would be so low that I can't be adjusting each parameter for each resource group based deployment
  2. Exploration of global solutions like Front door/Traffic manager

I am more inclined towards automated deployment of resources with preserving configuration with minimum possible time for business.

looking for some guidance and ideas here..

Azure Application Gateway
Azure Application Gateway
An Azure service that provides a platform-managed, scalable, and highly available application delivery controller as a service.
1,000 questions
Azure Automation
Azure Automation
An Azure service that is used to automate, configure, and install updates across hybrid environments.
1,173 questions
Azure Load Balancer
Azure Load Balancer
An Azure service that delivers high availability and network performance to applications.
416 questions

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. KapilAnanth-MSFT 39,211 Reputation points Microsoft Employee
    2023-02-17T08:40:19.5866667+00:00

    @WinTechie

    Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

    I understand that you are looking for Disaster recovery scenarios for Application Gateway.

    I would suggest the best and recommended way to achieve DR is by using a Traffic Manager

    User's image

    For more detailed information on different DR scenarios, refer here

    User's image

    While you can export the ARM template and redeploy it, as you mentioned, it presents a challenge that you should maintain the latest ARM templates of the affected Application gateways.

    Also, this would require you to match the backend configurations

    P.S : Deploy Zone-Redundant App gateways to overcome Zonal failures.

    Additional documents that may come handy:

    Traffic Manager

    Disaster recovery using Azure DNS and Traffic Manager

    Thanks,

    Kapil

    Please don’t forget to close the thread by clicking "Accept the answer" wherever the information provided helps you, as this can be beneficial to other community members.