Jenkins Interview Question

What is Jenkins?

Jenkins is an open source tool with plugin built for continuous integration purpose. The principle functionality of Jenkins is to keep a track of version control system and to initiate and monitor a build system if changes occur. It monitors the whole process and provides reports and notifications to alert.

What is the requirement for using Jenkins?

To use Jenkins you require

A source code repository which is accessible, for instance, a Git repository
A working build script, e.g., a Maven script, checked into the repository

What are the advantages of Jenkins?

Advantage of Jenkins include

At integration stage, build failures are cached
For each code commit changes an automatic build report notification generates
To notify developers about build report success or failure, it is integrated with LDAP mail server
Achieves continuous integration agile development and test driven development
With simple steps, maven release project is automated
Easy tracking of bugs at early stage in development environment than production

How you can move or copy Jenkins from one server to another?

Slide a job from one installation of Jenkins to another by copying the related job directory
Make a copy of an already existing job by making clone of a job directory by a different name
Renaming an existing job by renaming a directory.

What are the commands you can use to start Jenkins manually?

To start Jenkins manually, you can use either of the following

(Jenkins_url)/restart: Forces a restart without waiting for builds to complete
(Jenkin_url)/safeRestart: Allows all running builds to complete

How can create a backup and copy files in Jenkins?

Jenkins saves all the setting, build artifacts and logs in its home directory, to create a backup of your Jenkins setup, just copy this directory. You can also copy a job directory to clone or replicate a job or rename the directory.

How you can set up Jenkins job?

To create a project that is handled via jobs in Jenkins. Select New item from the menu, once this done enter a name for the job and select free-style job. Then click OK to create new job in Jenkins. The next page enables you to configure your job.

Jenkins Interview Question