1. IN PRODUCTION
A YEAR OF GITOPS

2. WHAT IS CURRENTLY RUNNING IN YOUR PRODUCTION?

3. ABOUT ME
▸ Dmitri Lerko
▸ Ask questions https://www.linkedin.com/in/lerko/
▸ I will blog about GitOps here https://deploy.live
▸ GCP, Kubernetes, AWS Certified

4. WHAT IS GITOPS?
▸ Push > Pull
▸ Definition
▸ Making changes

5. WHAT IS GITOPS?
▸ Push > Pull
▸ Definition
▸ Making changes

6. WHAT IS GITOPS?
▸ Push > Pull
▸ Definition
▸ Making changes

7. CALL OF HANDS
Photo by Kaleb Nimz on Unsplash

8. BEFORE CLOUD, KUBERNETES, GITOPS
▸ Physical servers

9. BEFORE CLOUD, KUBERNETES, GITOPS
▸ Physical servers
▸ KVM VMs

10. BEFORE CLOUD, KUBERNETES, GITOPS
▸ Physical servers
▸ KVM VMs
▸ Jenkins

11. BEFORE CLOUD, KUBERNETES, GITOPS
▸ Physical servers
▸ KVM VMs
▸ Jenkins
▸ Ansible

12. CI WITH JENKINS

13. CD WITH JENKINS
▸ Also known as CIOps

14. SNOWFLAKEOPS
Photo by Kalle Kortelainen on Unsplash

15. I LOVE JENKINS
▸ 42 Tabs
▸ 268 Jobs
▸ 142 Plugins

16. JENKINS UI ROCKS

17. CLOUD NATIVE ERA
Photo by Samuel Zeller on Unsplash

18. CI/CD GOALS
▸ Full audit trail

19. CI/CD GOALS
▸ Full audit trail
▸ Everything as code

20. CI/CD GOALS
▸ Full audit trail
▸ Everything as code
▸ No cap on concurrency and parallelism

21. CI/CD GOALS
▸ Full audit trail
▸ Everything as code
▸ No cap on concurrency and parallelism
▸ Minimise configurational drift

22. CI/CD GOALS
▸ Full audit trail
▸ Everything as code
▸ No cap on concurrency and parallelism
▸ Minimise configurational drift
▸ Don’t give CI/CD a wildcard access to your environments

23. GITOPS IS THE ANSWER
▸ Full audit trail
▸ Everything as code
▸ No cap on concurrency and parallelism
▸ Minimise configurational drift
▸ Don’t give CI/CD a wildcard access to your environments

24. POOR MAN’S GITOPS
▸ while true
▸ git pull
▸ kubectl apply -f
▸ sleep 30

25. BETTER GITOPS
https://github.com/weaveworks/flux

26. CLOUD NATIVE CI
▸ Google Cloud Build

27. CLOUD NATIVE CI
▸ Google Cloud Build
▸ Minimalistic

28. CLOUD NATIVE CI
▸ Google Cloud Build
▸ Minimalistic
▸ Unlimited parallel builds

29. CLOUD NATIVE CI
▸ Google Cloud Build
▸ Minimalistic
▸ Unlimited parallel builds
▸ Declarative

30. CLOUD NATIVE CI
▸ Google Cloud Build
▸ Minimalistic
▸ Unlimited parallel builds
▸ Declarative

31. CLOUD NATIVE CI - IN THEORY

32. CLOUD NATIVE CI - IN PRACTICE

33. GITOPS BUILD STEP
▸ Use git, hub (GitHub’s CLI), yq (jq for YAML)
▸ Check out GitOps repo with git
▸ Make a branch
▸ Update image version using yq
▸ Commit changes
▸ Push branch
▸ Create a PR with hub
https://github.com/github/hub/releases/
https://github.com/mikefarah/yq/releases/

34. CLOUD NATIVE CD

35. GITOPS IS THE ANSWER
▸ Full audit trail
▸ Everything as code
▸ No cap on concurrency and parallelism
▸ Minimise configurational drift
▸ Don’t give CI/CD a wildcard access to your environments

36. WHY BOTHER?
▸ Best practices

37. WHY BOTHER?
▸ Best practices
▸ Developer friendly

38. WHY BOTHER?
▸ Best practices
▸ Developer friendly
▸ Quick to try

39. ANY DOWNSIDES?
▸ The incident

40. ANY DOWNSIDES?
▸ The incident
▸ Broken YAML manifests upset GitOps

41. LOVEHOLIDAYS + GITOPS
▸ 11,190

42. LOVEHOLIDAYS + GITOPS
▸ 11,190
▸ GitHub vs kubectl

43. FUTURE OF GITOPS AT LOVEHOLIDAYS
▸ Istio for canary and continuous deployments

44. FUTURE OF GITOPS AT LOVEHOLIDAYS
▸ Istio for canary and continuous deployments
▸ Roll-out https://github.com/weaveworks/kubediff

45. FUTURE OF GITOPS AT LOVEHOLIDAYS
▸ Istio for canary and continuous deployments
▸ Roll-out https://github.com/weaveworks/kubediff
▸ Teach kubediff how to self-heal violations

46. HOW TO START
https://github.com/weaveworks/flux
https://www.weave.works/blog/gitops-is-cloud-native
alternatives:
https://argoproj.github.io/argo-cd/
https://razee.io

47. WE ARE HIRING
CAREERS.LOVEHOLIDAYS.COM
QUESTIONS?