Kubernetes 101 Google IO Talk

Transcript

1. Best Practices for Orchestrating the Cloud with Kubernetes Carter Morgan

   @_askcarter

2. Photo © Annette Shaff via Canva.com #K8story

3. monolith nginx hello nginx Microservices Monolith auth

4. Use Containers Photo © ptnimages via Canva.com Best Practice

5. Container Demo

6. But that’s just one machine Discovery Scaling Security Monitoring Configuration

   Scheduling Health

7. Automate and Monitor Photo © 3Dalia via Canva.com Best Practice

8. Avoid Vendor Lock-in Photo © Michele Piacquadio via Canva.com Best

   Practice

9. Kubernetes Open Source Container Automation Framework • Open API •

   Based on Google’s experiences

10. Velocity 1.0 1.1 1.2 v1.2: - 5k commits - +50%

    unique contributors Source: http://github.com/kubernetes/kubernetes

11. 1.2 • Deployments • DaemonSets • New UI • Simplified

    Deployments • Automated Cluster Management • Improved Scale 1.3 • Legacy application support • Cluster Federation • More nodes • In-cluster IAM • Scheduled jobs • Cluster autoscaling • Public cloud dashboard

12. Community Companies Contributing Companies Using 1200+ external projects based on

    k8s 800+ unique contributors Top 0.01% of all Github projects

13. Kubernetes Quick Demo

14. Pods Logical Application • One or more containers and volumes

    • Shared namespaces • One IP per pod Pod nginx monolith NFS iSCSI GCE 10.1.0.100

15. Labels Arbitrary metadata attached to any API object • Queryable

    by Selectors • How Kubernetes does grouping Pod nginx monolith Pod nginx monolith labels: version: v1 track: stable labels: version: v1 track: test

16. Labels selector: version=v1 Pod nginx monolith Pod nginx monolith labels:

    version: v1 track: stable labels: version: v1 track: test

17. Labels selector: track=stable Pod nginx monolith Pod nginx monolith labels:

    version: v1 track: stable labels: version: v1 track: test

18. Services Persistent IPs for Pods • Uses Labels to Target

    Pods • Internal or External IPs Pod nginx monolith Pod nginx monolith Service 10.8.244.100 10.1.0.2 10.1.0.1

19. Deployments Drive current state towards desired state Node 1 Pod

    app: hello replicas: 1 hello Node 2

20. Deployments Drive current state towards desired state Node 1 Pod

    app: hello replicas: 2 hello Node 2 Pod hello

21. Deployments Drive current state towards desired state Node 1 Pod

    app: hello replicas: 2 hello Node 2

22. Deployments Drive current state towards desired state Node 1 Pod

    app: hello replicas: 2 hello Node 2 Pod hello

23. monolith nginx hello nginx Microservices Monolith auth

24. Kubernetes Demo

25. What about code updates? Photo © hjalmeida via Canva.com

26. Deploy with care Photo © Green Jo via Canva.com Best

    Practice

27. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Pod hello Node Pod hello Service

28. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Pod hello Node Pod hello Service Pod goodbye

29. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Pod hello Node Pod hello Service Pod goodbye

30. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Pod hello Node Pod hello Service Pod goodbye

31. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Node Pod hello Service Pod goodbye Pod goodbye

32. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Node Pod hello Service Pod goodbye Pod goodbye

33. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Node Pod hello Service Pod goodbye Pod goodbye

34. Rollout Node 1 Pod hello Pod hello Node Pod hello

    Node Node Service Pod goodbye Pod goodbye

35. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Node Service Pod goodbye Pod goodbye Pod goodbye

36. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Node Service Pod goodbye Pod goodbye Pod goodbye

37. Rolling Update Node 1 Pod hello Pod hello Node Pod

    hello Node Node Service Pod goodbye Pod goodbye Pod goodbye

38. Rolling Update Node 1 Pod hello Pod hello Node Node

    Node Service Pod goodbye Pod goodbye Pod goodbye

39. Rollout Demo

40. Best Practices Recap The App: Use containers The Infra: Automate

    and Monitor The Infra: Avoid Lock-in The Wild: Deploy with Care

41. DevOps Engineer Nanodegree Program Scalable Microservices with Kubernetes course

42. Scalable Microservices with Kubernetes

43. #K8story Carter Morgan @_askcarter