Jenkins Freestyle Job

(this post if part of the material I cover in my devops course)

In this walkthrough we'll create a new project (job).
Note that Jenkins GUI looks better in Chrome, so you can go ahead and install Chrome in your linux machine.

Create an example project

• Create the job
  • Click on New Item
  • fill my_freestyle in the top edit fiels (project name)
  • Select Freestyle Project
  • click on OK at the bottom
• Jenkins automatically lands on the new job configuration:
  • Write something in the description window
  • click on Save (the save button at the bottom)
• Go back to configuration by clicking at the configure button on the left
  • Note that the sections on the left are just locations inside the long configuration page.
  • Note that checkboxes can open a more configuration options

Add steps

• Scroll down and find Build Steps
  • click the drop-down arrow and select Execute Shell
  • Paste the following command in the edit windows:

1echo hello > /tmp/myfiles/hello

• Note that your command will not work, as there is no such a directory
• click the Save button at the bottom
• Jenkins land at the job main page, so click on Build Now menu option on the left
• Your job appears at the bootom left, and seems to have failed.

  

Fix your job

• Click on Configure at the left to go back to configuration mode
  • Add another step (which will appear after the first one), and paste the following:

1[ -d /tmp/myfiles ] || mkdir /tmp/myfiles

(we want to be able to run this multiple times and succeed)

• Now look for the menu sign (3 short line) left of the step name.
• Use it to drag the new step, and make it appear first, before the previous step.
• save
• Run your job again again

Build History

• Go to Dashboard level
  • click Build History menu item on the left
  • Explore the entries, and notice the output icon at the right side