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SERVERLESS MIDDLEWARE IN AZURE FUNCTIONS
The document discusses serverless middleware in Azure Functions, highlighting compatibility, configuration options, and the benefits of using .NET 5 worker processes. It emphasizes the challenges of serverless architecture and outlines the advantages of an out-of-process model for Azure Functions. Additionally, it provides resources and links for further learning on middleware and Azure Functions.
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SERVERLESS MIDDLEWARE IN AZURE FUNCTIONS
- 1. © Copyright MicrosoftCorporation. All rights reserved. Serverless Middleware in Azure Functions Divakar Kumar Senior Software Engineer @Prokarma https://www.linkedin.com/in/divakar-kumar/ https://github.com/Divakar-kumar
- 2. 👋 Hi https://www.linkedin.com/in/divakar-kumar/ https://github.com/Divakar-kumar 🏆 Certifications: ✔️Microsoft Certified Trainer ✔️ Microsoft Certified: DevOps Engineer Expert ✔️ Microsoft Certified: Azure Developer Associate ✔️ Microsoft Certified: Azure IoT Developer Specialty ✔️ Microsoft Certified: Azure Fundamentals ✔️ Aviatrix Certified Engineer - Multi-Cloud Network Associate 👨 💻
- 3. © Copyright MicrosoftCorporation. All rights reserved. Agenda Middleware Serverless Architecture Middleware compatibility in Azure functions Demo Recreate middleware pipeline in current runtime Microsoft Announcement
- 4. © Copyright MicrosoftCorporation. All rights reserved. Middleware
- 5. • Handle HTTPRequest or Response • Holds HTTP context and Requestdelegate • In ASP .NET core we have 3 middleware options • Use() • Run() • Map() • Process an incoming HTTP request, modify it, and pass it on to another piece of middleware. • Handle an incoming HTTP request by generating an HTTP response. • Reroute an incoming HTTP request to another middleware or web server Middleware & Configuration options
- 6. ASP.NET Core inAction - What is middleware? Andrew https://andrewlock.net/asp-net-core-in-action-what-is-middleware/
- 7. © Copyright MicrosoftCorporation. All rights reserved. Agenda Middleware Serverless Architecture Middleware compatibility in Azure functions Demo Recreate middleware pipeline in current runtime Microsoft Announcement
- 8. ©Microsoft Corporation Azure • Lowmanagement overhead • Pay per use • Elastically scalable Benefits
- 9. Serverless to theMax: Doing Big Things for Small Dollars with Cloudflare Workers and Azure Functions - Troy https://www.troyhunt.com/serverless-to-the-max-doing-big-things-for-small- dollars-with-cloudflare-workers-and-azure-functions/ Don’t use Azure Functions as a web application - Maarten https://blog.maartenballiauw.be/post/2019/10/02/dont-use-azure-functions-as- a-web-application.html
- 10. ©Microsoft Corporation Azure • Logging •Exception handling • Tracing • CORS • Authentication • Authorization • Caching • Data validation • Monitoring • Health check Challenges in Serverless Architecture
- 11. © Copyright MicrosoftCorporation. All rights reserved. Agenda Middleware Serverless Architecture Middleware compatibility in Azure functions Demo Recreate middleware pipeline in current runtime Microsoft Announcement
- 12. ©Microsoft Corporation Azure • Tightlycoupled • Target framework • Dependent on host .NET runtime version • In-process model • Access to invocation pipeline is not possible Middleware compatibility in Azure Functions (1.x to 3.x )
- 13. © Copyright MicrosoftCorporation. All rights reserved. Agenda Middleware Serverless Architecture Middleware compatibility in Azure functions Demo Recreate middleware pipeline in current runtime Microsoft Announcement
- 14.
- 15. © Copyright MicrosoftCorporation. All rights reserved. Out-of-process Model
- 16. ©Microsoft Corporation Azure Out-of-process model •Proxies through IIS • Built in kestrel web server in ASP .NET core • Edge server • Performance issues
- 17. ASP.NET Core InProcess Hosting on IIS with ASP.NET Core - Rick https://weblog.west-wind.com/posts/2019/Mar/16/ASPNET-Core-Hosting-on-IIS- with-ASPNET-Core-22
- 18. © Copyright MicrosoftCorporation. All rights reserved. .NET 5 Worker Process
- 19. ©Microsoft Corporation Azure • StandaloneProcess • Decouples .NET function from Azure function host • Out of process model .NET 5 worker process
- 20. © Copyright MicrosoftCorporation. All rights reserved. Visualizing .NET 5 worker process in Azure Functions
- 21. ©Microsoft Corporation Azure .NET 5worker process model • 2 separate process • gRPC communication • Preview stage
- 22. © Copyright MicrosoftCorporation. All rights reserved. Benefits of .NET5 worker process
- 23. ©Microsoft Corporation Azure • Fewerconflicts • Full control of the process • Dependency injection Benefits
- 24.
- 25. © Copyright MicrosoftCorporation. All rights reserved. Required Artifacts - .NET 5 Azure Function App
- 26.
- 27.
- 28. Glance at Program.csfile :
- 29.
- 30. Demonstration: .NET 5worker process • Run local solution • Host in azure functions
- 31. © Copyright MicrosoftCorporation. All rights reserved. Agenda Middleware Serverless Architecture Middleware compatibility in Azure functions Demo Recreate middleware pipeline in current runtime Microsoft Announcement
- 32. • Understanding OWIN •Guide for Running Azure Functions on .NET 5 • .NET on Azure Functions Roadmap • Source Code – Serverless Middleware • Learn (http://aka.ms/learn)
- 33.