Building Microservice Systems Without Cooking Your Laptop: Going “Remocal” with Docker, Telepresence & Kubernetes
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The document discusses the challenges of developing microservices with Kubernetes and the importance of fast feedback loops in this context. It introduces tools like Docker Desktop and Telepresence, which enhance local development by bridging the developer's machine with the Kubernetes cluster. The presentation emphasizes the goal of achieving efficient 'remocal' development workflows to improve productivity.
Building Microservice Systems Without Cooking Your Laptop: Going “Remocal” with Docker, Telepresence & Kubernetes
- 1. Building Microservice Systems Without Cooking Your Laptop Going “Remocal” with Docker, Telepresence & Kubernetes Daniel Bryant @danielbryantuk Felipe Cruz @felipecruz
- 2. @danielbryantuk | @felipecruz tl;dr 2 • The inner development loop can be painful with microservices & Kubernetes • Docker Desktop enables your development journey to cloud native • Telepresence “proxies” your local machine into the cluster, increasing fast feedback • Docker Desktop Extension for Telepresence enables “remocal” development • Telepresence supports several workflows to make you more productive
- 3. @danielbryantuk | @felipecruz @danielbryantuk 3 Daniel Bryant @danielbryantuk Ambassador Labs Felipe Cruz @felipecruz Docker
- 4. @danielbryantuk | @felipecruz Setting the Scene 4
- 5. @danielbryantuk | @felipecruz Inner and outer dev loops 5 Hat tip to Mitch Denny (now 404): https://mitchdenny.com/the-inner-loop/ http://jorgemoral.es/posts/2020_03_17-develop_apps…
- 6. @danielbryantuk | @felipecruz SOA: There’s just more stu ff (and dependencies) 6
- 7. @danielbryantuk | @felipecruz So, let’s run everything locally… 7
- 8. @danielbryantuk | @felipecruz Docker Desktop becomes your second IDE Body Text 8
- 9. @danielbryantuk | @felipecruz But if you’re successful… Mo’ services, mo’ problems 9
- 10. @danielbryantuk | @felipecruz tl;dr 10 “My laptop only has 16GB RAM and you’re asking it to run Kubernetes and a JVM and a database???”
- 11. @danielbryantuk | @felipecruz Okay, let’s run everything remotely… 11
- 12. @danielbryantuk | @felipecruz Inner and outer dev loops with K8s can be the same 12 • Write code • Build container • Push to registry • Deploy to cluster • Test And can be …. SLOW.
- 13. @danielbryantuk | @felipecruz Automation can help… 13
- 14. @danielbryantuk | @felipecruz tl;dr 14 But you want a really fast inner loop (no docker build/push) …
- 15. @danielbryantuk | @felipecruz tl;dr 15 And you want to use your own tools.
- 16. @danielbryantuk | @felipecruz tl;dr 16 And you want to avoid the “works on my machine” production vs local development debacle
- 18. @danielbryantuk | @felipecruz What are Docker Extensions? Extend Docker Desktop A way to add new functionality into Docker Desktop Improve your team workflows Connect your favorite dev tools to your application development and deployment workflows Distribution channel for your tooling A way for the community and partners to reach million of developers 18
- 19. @danielbryantuk | @felipecruz What is Telepresence 19 • “Fancy Kubernetes VPN for development” • “kubectl port-forward on steroids” • “kubectl proxy all-the-things” • A network bridge between your laptop and the Kubernetes cluster
- 20. @danielbryantuk | @felipecruz Demo Time! 20
- 21. @danielbryantuk | @felipecruz Our Emoji-User Demo App $$$ 21 Web Emoji User Ambassador Edge Stack (Ingress) T A Traf fi c- manager User
- 22. @danielbryantuk | @felipecruz Docker Desktop Extension for Telepresence 22 getambassador.io/testing-with-telepresence-and-docker
- 23. @danielbryantuk | @felipecruz Key scenarios 23
- 24. @danielbryantuk | @felipecruz Remocal development 24 www.slideshare.net/dbryant_uk/jax-london-22-debugging-microservices-remocally-in-kubernetes-with-telepresence
- 25. @danielbryantuk | @felipecruz Testing Microservices: What to use, when 25 Mocks Service virtualization Remocal Unit tests ✅ Integration tests ✅ ✅ Component tests ✅ ✅ ✅ End-to-end tests ✅ ✅ Poking around an existing API ✅ Building an API ✅ ✅
- 26. @danielbryantuk | @felipecruz Continuous Delivery 26 https://learning.oreilly.com/library/view/continuous-delivery-in/9781491986011/ch01.html#idm140291459013360 https://www.youtube.com/watch?v=hJkhPP2OLA8&t=291s
- 27. @danielbryantuk | @felipecruz 27 Continuous Delivery and build pipelines
- 28. @danielbryantuk | @felipecruz Wrapping up 28
- 29. @danielbryantuk | @felipecruz Telepresence is a CNCF project, with a wide variety of users 29
- 30. @danielbryantuk | @felipecruz Conclusion 30 • The inner development loop can be painful with microservices & Kubernetes • Docker Desktop enables your development journey to cloud native • Telepresence “proxies” your local machine into the cluster, increasing fast feedback • Docker Desktop Extension for Telepresence enables “remocal” development • Telepresence supports several workflows to make you more productive
- 31. @danielbryantuk | @felipecruz Thank you! Questions? 31 Sample code and extensions: • github.com/ambassadorlabs/docker-extension-telepresence-java • docs.docker.com/desktop/extensions/ Learn more: • www.getambassador.io/kubernetes-learning-center/telepresence-docker-extension/ • hub.docker.com/extensions/ambassador/telepresence-docker-extension