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Developing scalable enterprise serverless applications on azure with .net
Callon Campbell is a solutions architect and Microsoft MVP with 20 years of experience in enterprise development, focusing on serverless architecture with Azure. The presentation covers the goals and benefits of serverless computing, practical implementation strategies, and real-world applications, including code demos and examples. Key topics include Azure Functions, deployment options, scaling, and incorporating AI tools for enhanced application performance.
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Developing scalable enterprise serverless applications on azure with .net
- 1. Callon Campbell Solutions Architect| Developer | Microsoft MVP Cloud Mavericks Inc. Developing scalable enterprise serverless applications with .NET
- 2. Microsoft Azure Callon Campbell SolutionArchitect | Developer Microsoft MVP in Azure He/him/his Speaker introduction • 20 years enterprise development with Microsoft technologies – .NET, Azure, Web, Desktop, SQL, and Mobile • Blogging at https://theflyingmaverick.com • Speaker at community events and meetups • Co-creator of ReflectInsight, a live .NET log viewer
- 3. Microsoft Azure Agenda •Goals ofserverless •Adopting serverless and cloud native for your application architecture •Building for scale, high availability and resiliency •Real world example – code and demos •Q&A 3
- 4. Microsoft Azure The goalsof “serverless”
- 5. Microsoft Azure Serverless Full abstractionof servers Instant scale Pay-per-use
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- 7. Microsoft Azure Leader inFunctions-as-a-Service platform Forrester has named Microsoft as a leader in the inaugural report, The Forrester New Wave™: Function-As-A-Service Platforms, Q1 2020 based on their evaluation of Azure Functions and integrated development tooling. “robust programming model and integration capabilities” "engineering and support teams as key to their success” Report: https://reprints.forrester.com/#/assets/2/108/RES155938/reports
- 8. Microsoft Azure Full abstractionof servers Instant scale Pay-per-use Serverless for the enterprise Development process flexibility Secure and compliant Enterprise-level scale with control Advanced observability Hybrid and multi-cloud
- 9. Microsoft Azure Adopting serverlessand cloud native
- 10. Microsoft Azure Azure serverlessecosystem Event driven serverless offerings…
- 11. Microsoft Azure Azure serverlessecosystem
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- 13. Microsoft Azure PlatformApplicationdeliveryOperatingsystem ●●● ●●● ●●● + https://github.com/azure/azure-functions-host (+otherrepos) Azure Functions host runtime Azure Functions Core Tools Azure Functions base Docker image Azure Functions .NET Docker image Azure Functions Node Docker image ●●● Functions everywhere
- 14. Microsoft Azure Scale andlatency
- 15. Microsoft Azure Cold-starts • Whenchoosing the ‘Consumption’ plan, you will have elastic scale but at the cost of cold starts. • A cold-start is a small amount of time needed to warm up the resources and execute your functions. Consumption plan runs on a shared environment and resources need to be allocated. • Cold-start could take 1-3 seconds. 15
- 16. Microsoft Azure Premium Functions •Avoid cold-start with perpetually warm instances • Dynamically scale as needed • Consistent performance • Network isolation, VNet connectivity • Long running execution (60min guaranteed) • Better predictable pricing 16
- 17. Microsoft Azure Premium Functionsrecap Powerful hardware Elastic scale with control Advanced networking options Reserved instances
- 18. Microsoft Azure Running healthyapps in the cloud
- 19. Microsoft Azure Use multipleinstances & deploy to multiple regions 19 Multiple instances: • Azure Functions provides the means to automatically scale when needed • Allocate minimum instances in the Scale out (App Service Plan) blade • Set number of pre-warmed instances Deploy to multiple regions: • Leverage Azure Front Door or Traffic Manager to intercept traffic before it hits your site • Helps with routing and distribution between your instances and regions • Route incoming requests based on the customer’s geography
- 20. Microsoft Azure Leverage deploymentslots 20 Why use slots? • Different environments for different purposes – test your changes • Prewarming • Easy fallbacks How are functions affected by swapping slots? • Traffic redirection is seamless; no requests are dropped because of a swap. • If a function is running during a swap, execution continues, and the next triggers are routed to the swapped app instance. https://docs.microsoft.com/en-us/azure/azure-functions/functions-deployment-slots
- 21. Microsoft Azure Cosmos DB 21 SQL-API •Write scalability around the world • Low latency (<10ms P99 for 1kb document) writes around the world • 99.999% High Availability around the world • Well-defined consistency models • Automatic conflict management
- 22. Microsoft Azure Storage (RS-GRS) 22 READ-ACCESSGEO-REDUNDANT STORAGE Redundancy in the primary region • Locally redundant storage (LRS) copies your data synchronously three times within a single physical location in the primary region. • Zone-redundant storage (ZRS) copies your data synchronously across three Azure availability zones in the primary region. Redundancy in a secondary region • Geo-redundant storage (with GRS or GZRS) replicates your data to another physical location in the secondary region to protect against regional outages. • Design your applications for read access to the secondary region.
- 23. Microsoft Azure Enable ApplicationInsights 23 Application map Live metrics stream Search Failures Performance profiling Track dependencies
- 24. Microsoft Azure On-prem Real world sample AzureFunction app to integrate into Twilio calls and messaging platform. Global scale, availability, resiliency. Secure access to on-prem resources. 24 AzureTwilio Calls Messages Caller Recipient
- 25. Microsoft Azure On-prem 25 AzureTwilio Calls Messages Caller Recipient Hybrid Connection Manager SQL Server Traffic Manager DataFactory (ETL pipeline) Cosmos DB SQL API Logic App App Configuration MediaFile StartCall PostCall Blob Storage Queue Storage Hybrid Connection ProcessCall PostCall Orchestrator API Management Call Details
- 26. Microsoft Azure Azure TrafficManager Azure - West US 2 Azure - Global Managed Service Azure - East US 2 http://tm-enterpriseserverless-01.trafficmanager.net/api/startcall 27 DNS-BASED LOAD BALANCING • Flexible routing options • Priority, performance, geographic, weighted round-robin, subnet, and multi-value • Reduce application downtime • Improve app performance and content delivery • Distribute user traffic over multiple locations • Use with your on-premises datacenter • Geographic fencing of your application users
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- 28. Microsoft Azure Demo notes •Twilio test call and SMS • Premium Function • Warmed instances • Deployment slots • Cosmos DB geo replication + multi-master + Autoscale • Storage (RS-GRS) • Configure for secondary URL • Traffic Manager • App Configuration 29
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- 30. Microsoft Azure Tooling Develop andtest locally and disconnected from Azure using: • Visual Studio and/or Visual Studio Code • Cosmos DB Emulator • Microsoft Azure Storage Emulator • Microsoft Azure Storage Explorer • .NET Core 3.1, Function runtime v3, Cosmos DB SQL API 31
- 31. Microsoft Azure Inner andouter loop development Inner Loop Source Control Build and Test (CI) Deploy (CD) Run (Prod) Monitoring & Diagnostics Code, Run, Debug Outer Loop
- 32. Microsoft Azure Getting codeto the cloud Direct publish App Service SCM (Kudu) CI/CD tools “right click publish” CD CD CI Check-in Check-in
- 33. Microsoft Azure Operations Using acombination of Event Grid and Logic Apps •Event Grid listing to changes to storage account and triggers a Logic App to synchronize media files across regions. •Logic App monitors Poison queue in storage and reprocesses. 34
- 34. Microsoft Azure Logic Appworkflows 35
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- 36. Microsoft Azure Demo notes •Developand debug locally •Azure Pipelines • Build • deploy •Monitoring 37
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- 38. Microsoft Azure Your applicationscould benefit from serverless today.
- 39. Microsoft Azure Wrap-up Serverless isthe next big thing for enterprise. Pick what works for you Serverless is more than just compute, functions, and app development Productivity does not preclude enterprise capability
- 40. Microsoft Azure Resources Session Materialson GitHub Session Resources https://github.com/calloncampbell/Enterprise-Serverless-Demo/ All in one resource: https://github.com/calloncampbell/Enterprise-Serverless-Demo/blob/master/RESOURCES.md Get Certified
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