Cloud-Native all-the-things: Definition, Praktiken & Patterns

Cloud-Native bedeutet nicht zwangsläufig Kubernetes oder gar Public Cloud. Vielmehr definiert Cloud-Native eine Reihe von Attributen, die es beim Design und der Implementierung von verteilten Anwendungen zu beherzigen gilt. In diesem Vortrag räumen Christian Weyer und Thorsten Hans auf pragmatische Art und Weise mit den Begrifflichkeiten auf und diskutieren Praktiken, wie man moderne Cloud-Native-Anwendungen entwerfen und umsetzen kann. Zudem zeigen sie praxiserprobte und bewährte Architektur-Patterns, mit denen essenzielle Themen wie Robustheit, Skalierbarkeit, Überwachbarkeit, und Konfigurierbarkeit ganzheitlich adressiert werden können. Egal ob lokal, im privaten Rechenzentrum oder in der öffentlichen Cloud: Als .NET-Entwickler ist es an der Zeit, sich Cloud-Native anzuschauen.

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1. Cloud-Native all-the-things: Definition, Praktiken & Patterns Thorsten Hans @thorstenhans Technology Catalyst & Cloud-Native-Enthusiast Christian Weyer @christianweyer CTO, Technology Catalyst
2. Cloud-Native Consultant @ Thinktecture AG #Cloud-Native #Kubernetes #Azure #Terraform Thorsten Hans Definition, Praktiken & Patterns Cloud-Native all-the-things thorsten.hans@thinktecture.com thinktecture.com thorsten-hans.com @ThorstenHans
3. § Technology catalyst § AI-powered solutions § Pragmatic end-to-end architectures § Microsoft Regional Director § Microsoft MVP for Developer Technologies & Azure ASPInsider, AzureInsider § Google GDE for Web Technologies christian.weyer@thinktecture.com @christianweyer https://www.thinktecture.com Cloud-Native all-the-things Definition, Praktiken & Patterns Christian Weyer Co-Founder & CTO @ Thinktecture AG 3
4. Cloud-Native all-the-things Definition, Praktiken & Patterns Talking Points Attributes Techniques & Practices for .NET Patterns Running Applications Automation Myth Busting & Definitions 4
5. Cloud-Native all-the-things Definition, Praktiken & Patterns 5 Myth Busting & Definitions Aka “WTF?”
6. Cloud-Native What is it NOT Cloud-Native all-the-things Definition, Praktiken & Patterns Myth Busting & Definitions 6
7. Cloud-Native all-the-things Definition, Praktiken & Patterns Myth Busting & Definitions 7 X X X
8. Cloud-Native What is it Cloud-Native all-the-things Definition, Praktiken & Patterns Myth Busting & Definitions 8
9. ”… is highly distributed, must operate in a constantly changing environment, and is itself constantly changing.” Cornelia Davis, Author of Cloud Native Patterns: Designing change-tolerant software Cloud-Native all-the-things Definition, Praktiken & Patterns Cloud-Native Software Myth Busting & Definitions 9
10. Cloud-Native all-the-things Definition, Praktiken & Patterns 10 D E M O Myth Busting & Definitions
11. Cloud-Native all-the-things Definition, Praktiken & Patterns End-to-End Demo Application 11 Myth Busting & Definitions
12. Yes, it is all about Linux. Windows is more expensive and resource-intensive. Cloud-Native all-the-things Definition, Praktiken & Patterns Cloud-Native Software Myth Busting & Definitions 12
13. Cloud-Native & Cloud What’s in a name? Cloud-Native all-the-things Definition, Praktiken & Patterns Myth Busting & Definitions 13
14. "Cloud is about where we're computing. Cloud-Native is about how.” Cornelia Davis, Author of Cloud Native Patterns: Designing change-tolerant software Cloud-Native all-the-things Definition, Praktiken & Patterns Cloud-Native & Cloud Myth Busting & Definitions 14
15. Cloud-Native Landscape Complex matters Cloud-Native all-the-things Definition, Praktiken & Patterns Myth Busting & Definitions 15
16. Cloud-Native all-the-things Definition, Praktiken & Patterns https://landscape.cncf.io/ Myth Busting & Definitions 16
17. Cloud Agnostism Fully cloud-agnostic ➡ Re-implementing stuff that’s already there Cloud-Native all-the-things Definition, Praktiken & Patterns Cloud-Native & Cloud Myth Busting & Definitions 17
18. From Build vs. Buy to Run vs. Rent Cloud-Native all-the-things Definition, Praktiken & Patterns Cloud-Native & Cloud Myth Busting & Definitions 18
19. Cloud-Native Attributes What & why Cloud-Native all-the-things Definition, Praktiken & Patterns 19
20. Cloud-Native all-the-things Definition, Praktiken & Patterns Availability Scalability Resilience Configurability Observability Cloud-Native Applications Cloud-Native Attributes 20
21. Cloud-Native all-the-things Definition, Praktiken & Patterns 21 Techniques & Practices Play nicely as a .NET developer
22. “It’s simply that the application has to give up a lot of control, to the platform - and has to be cleanly integrable from the outside.” Thorsten Hans, Cloud-Native-Enthusiast Thinktecture Consultant Cloud-Native all-the-things Definition, Praktiken & Patterns Main Metaphor for Cloud-Native Code Techniques & Practices 22
23. Containerization Create & use Docker Images Cloud-Native all-the-things Definition, Praktiken & Patterns Techniques & Practices 23
24. Configurability & Observability in .NET IConfiguration ILogger OpenTelemetry Health Checks Cloud-Native all-the-things Definition, Praktiken & Patterns Techniques & Practices 24
25. Cloud-Native all-the-things Definition, Praktiken & Patterns 25 D E M O Techniques & Practices
26. Cloud-Native all-the-things Definition, Praktiken & Patterns 26 Cloud-Native Patterns Proven, applied & enforced
27. Cloud-Native all-the-things Definition, Praktiken & Patterns Infrastructure, FTW! Statelessness Service-to-Service Instrumentation Loose (runtime) coupling (many more) Cloud-Native Patterns Patterns 27
28. § Asynchronous message passing for decoupling services § Different message exchange patterns at your hand § RabbitMQ as popular on-prem broker-based system § Azure Service Bus as very mature & robust Cloud offering § Care for resiliency when communicating § Retries & error handling Cloud-Native all-the-things Definition, Praktiken & Patterns Messaging, Queuing, Pub-Sub 28 X P S S Patterns
29. Cloud-Native all-the-things Definition, Praktiken & Patterns End-to-End Demo Application 29 Patterns
30. Cloud-Native all-the-things Definition, Praktiken & Patterns 30 D E M Patterns
31. Cloud-Native all-the-things Definition, Praktiken & Patterns 31 Running Applications Locally, on-prem & Cloud
32. § We can choose and mix from the continuum Cloud-Native all-the-things Definition, Praktiken & Patterns Cloud Compute Continuum PaaS IaaS On-Premises Serverless Managed Kubernetes Running applications 32
33. Cloud-Native all-the-things Definition, Praktiken & Patterns Hosting Options - Comparison Running applications 33
34. Cloud-Native all-the-things Definition, Praktiken & Patterns 34 Automation All-the-things!
35. Automation in Cloud-Native Is the key to success! Automate EVERYTHING Cloud-Native all-the-things Definition, Praktiken & Patterns Automation 35
36. Cloud-Native all-the-things Definition, Praktiken & Patterns Automation Layers Inner-Loop Infrastructure CI & CD Automation 36
37. Cloud-Native all-the-things Definition, Praktiken & Patterns 37 D E M Automation
38. Cloud-Native all-the-things Definition, Praktiken & Patterns 38 Conclusion
39. Cloud-Native all-the-things Definition, Praktiken & Patterns Recap 39 Cloud-Native != Cloud Running distributed applications anywhere Ecosystem is overwhelming Everything beyond writing application code can be very overwhelming Patterns & practices ease development & operation Constantly changing applications & environments
40. https://www.thinktecture.com/ueber-uns/karriere/ Dankeschön! Christian Weyer https://thinktecture.com/christian-weyer Demos aus der Session: https://github.com/thinktecture-labs/ cloud-native-sample Thorsten Hans https://thinktecture.com/thorsten-hans 40
41. Appendix Cloud-Native all-the-things Definition, Praktiken & Patterns 41
42. Disadvantages of Windows Containers • Bigger in size • longer push/pull times • Require more storage (affects Kubernetes & PaaS) • Higher resource consumption • Windows Containers & Hosts need more CPU & memory • Direct impact on infrastructure budged • Host & container OS must have same version (strict policy) • https://kubernetes.io/docs/concepts/windows/intro/#windows-os-version-support • Meaning you may end up with way more infrastructure Cloud-Native all-the-things Definition, Praktiken & Patterns Cloud-Native Software 42 Myth Busting & Definitions