Gerrit & Jenkins Workflow: An Integrated Demonstration

Code Review and Automation, All In DockerFor Gerrit User Summit 2015

Real World Use Case: Mobile Development

●Gerrit: Centralized Source and Code Review

●Jenkins: Automation and Integration●Repo: Cross-repository Features (Android

use)

Gerrit/Jenkins Solutions●Gerrit Trigger + chained jobs●Gerrit hooks firing Jenkins jobs ●Multiple Jobs with Gerrit trigger

configured*NEW* Gerrit Trigger + Jenkins Workflow *NEW*

○Available as of Aug 2015○Parameterized trigger: supports workflow as of

Aug 2015

Gerrit + CI Pain Points●Fast feedback?●Sequences of test

jobs?●Orphaned jobs?

Workflow

Jenkins Workflow

Why Gerrit Trigger + Workflow for Gerrit CI integration?

●Gerrit hooks or gerrit trigger on multiple jobs solved a problem: how do I handle multiple parallel jobs?

○This does it a lot more cleanly though●Highly configurable●Built-in concurrency & fail-fast options●Lives in SCM, it can live in Gerrit and be

reviewed separately●Failure handling: try/catch and finally

Infrastructure

Standing on the Shoulders of Giants ●Jenkins Gerrit Trigger

Plugin (2011)●Jenkins Workflow (Mid-

2014)●Gerrit Docker Image by ●Gerritforge (April 2015)●Jenkins Docker Image

(Started July 2014)●Repo●Docker all the things

Show &Tell + Key Points

Let’s Talk About The Dockerization

Closing Notes:Blog:

●https://www.cloudbees.com/blog/jenkins-workflow-and-gerrit-putting-pieces-together

Sources:●https://github.com/cloudbees/gerrit-workflow-demo

Email:●samvanoort@gmail.com