"Inside the Azure App Service Architecture" still accurate?

Question

Is is the article "Inside the Azure App Service Architecture" still accurate?
https://learn.microsoft.com/en-us/archive/msdn-magazine/2017/february/azure-inside-the-azure-app-service-architecture

Answer 1

Hi @Luke Narramore,

The article "Inside the Azure App Service Architecture" originally published in February 2017 still provides a solid foundational overview of how Azure App Service is structured, especially in terms of its high-level components like front ends, workers, file servers, and the shared infrastructure model, it is not fully up to date with the current state of Azure App Service.

Azure has evolved significantly since 2017, with many improvements in areas such as:

• Regional VNet Integration
• App Service Environments v3 (ASEv3)
• Linux support and custom container hosting
• Scaling and performance improvements
• Built-in CI/CD and GitHub Actions support
• Private Endpoints and advanced networking options

So, while the core architecture principles still hold true, the details and capabilities have advanced.

To stay current with today’s Azure App Service platform, I’d highly recommend reviewing these official Microsoft Learn resources:

1. https://learn.microsoft.com/en-us/azure/app-service/ => This is the most reliable and updated source for everything from app hosting to networking and DevOps integration.
2. https://learn.microsoft.com/en-us/azure/app-service/environment/overview => Useful for understanding fully isolated and high-scale environments.
3. https://learn.microsoft.com/en-us/azure/app-service/networking-features => Details current options like VNet integration, Private Endpoints, and access restrictions.

I hope this information is helpful.

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Answer 2

great question luke! Luke Narramoret hanks for throwing this into the q&a :)

so that article is from 2017 right? and azure app service has evolved like CRAZY since then )) the core ideas are still kinda there, but microsoft has tweaked, improved, and straight up replaced some parts. like, the whole scaling and networking stuff? totally different now.

Im sure u want to understand how app service currently works, u should check the official docs. they've got fresh 2025 updates that explain the new architecture. for example, the networking part now uses something called "virtual network integration" which is way smoother than the old setup. here's the link to the latest docs: azure app service networking docs.

the pricing tiers have changed too. back in 2017 they had like, what, three options? now there's a whole buffet of choices depending on ur needs. wanna see the current list? here u go: app service pricing tiers.

the article's not useless tho! it gives u a historical perspective, like how app service grew from its early days. but if u're building something now, u gotta stick with the 2025 docs. things like the "azure app service environment" have gotten major upgrades, and the security model is way more granular now.

so yeah, tl;dr: cool for nostalgia, not for production )) check the new stuff instead. and if u get stuck with any of the modern app service quirks, just ask! the community's got ur back )

(ps: microsoft really needs to slap a "historical" label on those old articles amirite? ;)))))))))) just a joke.

Best regards,

Alex

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