Kubernetes 101 Google IO Talk

What is Kubernetes 101?
How do I manage application at scale? That’s a common question facing developers today and this code lab helps to make sense of the ever changing scalable app landscape. We'll use Docker and Kubernetes to deploy, scale, and manage a microservices based application in this 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