Continuous Deployment with Gerrit and Jenkins

1. Continuous Deployment with Gerrit and Jenkins R. Tyler Croy Lookout, Inc. http://mylookout.com/about/jobs

2. Who is this guy?

3. I work here

7. Brief overview of Continuous Deployment Meet Gerrit A Basic Commit-to-Deploy Pipeline Multiple branches with Gerrit + Jenkins The Human Factor Pro-tips/best practices

8. Continuous Deployment

9. What it isn't

11. What it is

12. Who is using it?

13. Why Code Review?

14. Why Code Review?

15. Meet Gerrit

17. As a code review tool

18. As a code review tool

19. As a Git repository server ~ % git checkout -b change-4 Switched to a new branch 'change-4' ~ % git fetch gerrit refs/changes/04/4/1 From gerrit:ttyclock * branch refs/changes/04/4/1 -> FETCH_HEAD ~ % git cherry-pick FETCH_HEAD Finished one cherry-pick. [change-4 1d4351c] Greatly improve the stability of tty-clock 1 files changed, 3 insertions(+), 0 deletions(-) ~ %

20. As a collaboration tool

21. As a collaboration tool

22. As a collaboration tool

23. As a collaboration tool

24. Code Review “Points”

25. Code Review “Points”

26. Changes in Gerrit Change 123 Patchset 1 Commit cdeb34 Patchset 2 Commit 41dbe5

27. Changes in Gerrit Change 123 Patchset 1 Commit cdeb34 Patchset 2 Commit 41dbe5

29. Developer Workflow

30. The Gerrit Flow gerrit upstream dev-b dev-a

31. Flow of changes Create Local Branch % git checkout -b topic-branch work Push to Gerrit % git push gerrit HEAD:refs/for/master

32. Flow of changes Create Local Branch % git checkout -b topic-branch work Push to Gerrit % git push gerrit HEAD:refs/for/master

33. Flow of changes Create Local Branch Fix commit work rejected rebased! Review Push to Gerrit Upstream repo approved/ submitted

34. Flow of changes Create Local Branch Fix commit work rejected rebased! Review Push to Gerrit Upstream repo approved/ submitted

35. Your development workflow in commands git checkout -b local-topic-branch work work work git rebase -i upstream/master # fix up commits git push gerrit HEAD:refs/for/master Create new commits based on reviews git rebase -i upstream/master # squash up git push gerrit HEAD:refs/for/master

36. REBASE IS SCARY (but necessary)

37. How it works upstream/master A B C % git rebase upstream/master local-topic-branch A B D E

38. How it works upstream/master A B C local-topic-branch A B C D E

39. How it works upstream/master A B C % git rebase -i upstream/master local-topic-branch A B C D E Change-Id: Icde43 Change-Id: I51bdc2

40. ~ % git rebase -i origin/master pick e59df21 Greatly improve the stability of tty-clock squash 6c1ffe1 Fix some whitespace [detached HEAD 785692b] Greatly improve the stability of tty-clock 1 files changed, 2 insertions(+), 0 deletions(-) Successfully rebased and updated refs/heads/change-4. ~ %

41. How it works upstream/master A B C local-topic-branch A B C DE Change-Id: Icde43

42. How it works upstream/master A B C local-topic-branch A B C DE Change-Id: Icde43

43. Gerrit Trigger Plugin

44. Creating a role account ~ % ssh gerrit gerrit create-account

45. gerrit Jenkins Commands sent over SSH Streamed events over SSH

47. A simple pipeline

48. Creating a Jenkins “verifier” job

49. Creating a Jenkins “verifier” job

50. Creating a Jenkins “verifier” job