1. Database
Infrastructure with
Open Source
Kubernetes Operators
Inel Pandzic, Software Engineer

2. ©2023 Percona
About Me
● Inel Pandzic
● Software Engineer @ Percona
● Blogging @ inelpandzic.com

3. ©2023 Percona
Agenda

4. ©2023 Percona
Agenda
● Context

5. ©2023 Percona
Agenda
● Context
● Databases on Kubernetes the hard way

6. ©2023 Percona
Agenda
● Context
● Databases on Kubernetes the hard way
● Kubernetes operators

7. ©2023 Percona
Agenda
● Context
● Databases on Kubernetes the hard way
● Kubernetes operators
● Summary

8. ©2023 Percona
Database Infrastructure

9. ©2023 Percona
Database Infrastructure
● Simple for simple things

10. ©2023 Percona
Database Infrastructure
● Simple for simple things
● Complex for demanding things

11. ©2023 Percona
Database Infrastructure

12. ©2023 Percona
Database Infrastructure

13. ©2023 Percona
Why run a database on K8s?

14. ©2023 Percona
Why run a database on K8s?
● Evolution

15. ©2023 Percona
Why run a database on K8s?
● Evolution

16. ©2023 Percona
Why run a database on K8s?
● Evolution

17. ©2023 Percona
Why run a database on K8s?
● Evolution

18. ©2023 Percona
Why run a database on K8s?
● Evolution

19. ©2023 Percona
Why run a database on K8s?
● Evolution
● Customer driven

20. ©2023 Percona
Why run a database on K8s?
● Evolution
● Customer driven
“90% believe it is ready for stateful workloads, and a large majority (70%) are running
them in production with databases topping the list. Companies report significant
benefits to standardization, consistency, and management as key drivers.” - DoKC 2021
Report

21. ©2023 Percona
Why run a database on K8s?
● Evolution
● Customer driven
“90% believe it is ready for stateful workloads, and a large majority (70%) are running
them in production with databases topping the list. Companies report significant
benefits to standardization, consistency, and management as key drivers.” - DoKC 2021
Report
“This year’s report found that running data on Kubernetes benefits the whole
organization, not just engineering. Leaders believe DoK is transformative for
business growth” - DoKC 2022 Report

22. ©2023 Percona
Databases on K8S the hard way

23. ©2023 Percona
Databases on K8S the hard way

24. ©2023 Percona
Databases on K8S the hard way

25. ©2023 Percona
Databases on K8S the hard way

26. ©2023 Percona
Databases on K8S the hard way

27. ©2023 Percona
Databases on K8S the hard way

28. ©2023 Percona
Databases on K8S the hard way

29. ©2023 Percona
Databases on K8S the hard way

30. ©2023 Percona
Databases on K8S the hard way

31. ©2023 Percona
Databases on K8S the hard way

32. ©2023 Percona
Databases with K8s Operators

33. ©2023 Percona
Databases with K8s Operators
● What is a K8s operator?

34. ©2023 Percona
Databases with K8s Operators
● What is a K8s operator?
○ Custom Kubernetes controller

35. ©2023 Percona
Databases with K8s Operators
● What is a K8s operator?
○ Custom Kubernetes controller
○ Extensions to the K8s API (Custom Resource)

36. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives

37. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
cr.yaml

38. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified

39. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml

40. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated

41. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated
○ Scaling

42. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated
○ Scaling
cr.yaml

43. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated
○ Scaling
○ Backups/Restores
cr.yaml

44. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated
○ Scaling
○ Backups/Restores
cr.yaml

45. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated
○ Scaling
○ Backups/Restores
cr.yaml

46. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated
○ Scaling
○ Backups/Restores
○ Upgrades

47. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated
○ Scaling
○ Backups/Restores
○ Upgrades
○ Monitoring (Percona Monitoring and Management)

48. ©2023 Percona
Databases with K8s Operators
● Manages the database and K8s primitives
● Day-1 operations simplified
○ kubectl apply -f cr.yaml
● Day-2 operations automated
○ Scaling
○ Backups/Restores
○ Upgrades
○ Monitoring (Percona Monitoring and Management)
○ Maintenance

49. ©2023 Percona
Databases with K8s Operators

50. ©2023 Percona
Databases with K8s Operators

51. ©2023 Percona
Databases with K8s Operators

52. ©2023 Percona
Summary

53. ©2023 Percona
Summary
● Databases on K8s is prefered

54. ©2023 Percona
Summary
● Databases on K8s is prefered
● Kubernetes operators

55. ©2023 Percona
Summary
● Databases on K8s is prefered
● Kubernetes operators
○ Percona Operator for MySQL
○ Percona Operator for MongoDB
○ Percona Operator for PostgreSQL

56. Thank You!