SamuelIsaiParedesMorales-8595, Just following-up, checking in to see if you had got a chance to see the previous post, and if it helped answer your question or point you in the right direction.
Kindly let us know with more information about your exact requirement for this setup, we would be more than happy to assist you.
Just adding more options:
If your requirement fits, you could clone an existing WebApp to a newly created app in a different region. This option lets you deploy a number of apps across different regions quickly and easily. App cloning is currently only supported for premium tier app service plans. However, presently database content is not cloned.
Refer the document Azure App Service App Cloning Using PowerShell for more details.
You can use Azure Traffic Manager to control how requests from web clients are distributed to apps in Azure App Service
Kindly see these reference architecures
Highly available multi-region web application
Multi-region N-tier application
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