At Mashion our usual pairing setup means we have one laptop that’s not doing much work. It’s handy to have for email, or breaking off to google something but it’s idle most of the time.
When looking for a CI solution on a recent project, it made sense to me to use that second machine rather than spend money on a VPS. So I set out to make a simple local Jenkins server. Here’s what I came up with.
First install the jenkins.rb gem and start the server:
Once the server is up and running (check localhost:3001) use the Java Jenkins CLI to install the git plugin or whatever plugins you need for your setup.
Here I opted not to use a project template. The ones that come with jenkins.rb don’t poll Git or email on failures. I also prefer keeping the build steps in
script/ci in the project’s git repo since it’s easier to update and port across languages and frameworks.
So head to your Jenkins server and configure your job to poll git every 5 minutes with this cron expression:
echo build step with
script/ci. And add an E-mail Notification to yourself or whoever should know about failures (space separated). Then save your job config.
You’re all set. Commit some new code or click the “Build Now” link to run a test build. To stop the Jenkins server run:
Hope that helps some, feel free to leave a comment or email me if you have any questions.