# Azure Disaster recovery multi-region deployment ## Description 📝 Multi-region Disaster Recovery (DR) with Traffic Manager in Azure provides a way to achieve high availability and fault tolerance for your applications. Azure Traffic Manager is a global DNS-based traffic load balancer that can distribute traffic to multiple endpoints, including those in different regions. Here are the steps to implement a disaster recovery plan using Azure multi-region deployment: Choose a secondary region: Select a secondary Azure region that is geographically distant from your primary region. This ensures that if a disaster affects your primary region, your resources will remain available in the secondary region. Replicate your resources: You can use several Azure services to replicate your resources to the secondary region, including Azure Site Recovery, Azure Storage Replication, and Azure Backup. Choose the service that best suits your needs. Configure network connectivity: Set up a virtual network in the secondary region and configure connectivity to your primary region. This enables traffic to be routed to the secondary region in case of a disaster. Test your disaster recovery plan: Regularly test your disaster recovery plan to ensure that your resources can be recovered in the event of a disaster. This can be done through simulations or drills. Monitor and maintain your disaster recovery solution: Monitor your solution regularly to ensure that it is working as expected. This includes monitoring replication, network connectivity, and failover capabilities. # Architecture components 🏛️ 1. Resource Group 2. Traffic manager 3. Traffic manager profile 4. Service plan 5. Linux WEB App 6. Linux Function APP 7. Storage Account 8. Storage Container 9. Storage replication 10. Virtual network region 1 11. Virtual network region 2 12. Vnet peering 13. Linux VM 14. Network Interface 15. CosmosDB 16. DNS Zone This architecture uses two regions, primary and secondary to achieve higher availability. The application is deployed to each region on the Linux Web App. During regular operations, network traffic is routed to the primary region. Traffic is routed to the secondary region if the primary region becomes unreachable. # Requirements | Name | Configuration | | --- | --- | | Terraform | all versions | | Provider | Azurerm | | Provider version | 3.37 | ## How to use the architecture To use this architecture, clone it within your project and change the following components: | Variable | Description | | --- | --- | | hostname | hostname for your specific application | | location | location for the main resource | | region1 | Location for primary region | | region2 | Location for secondary region | # Maintainer(s) - [Marsela Abdi](mailto:marsela@brainboard.co) - [Brainboard team](mailto:support@brainboard.co)