Installing on Linux in Jenkins - Quick Revision & Summary

Recall & Review

beginner

What is Jenkins?

Jenkins is an open-source automation server used to build, test, and deploy software automatically.

beginner

Which command updates the package index on a Debian-based Linux system before installing Jenkins?

The command is sudo apt update. It refreshes the list of available packages.

intermediate

Why do we add the Jenkins repository key before installing Jenkins?

Adding the repository key ensures the packages are trusted and come from the official Jenkins source.

beginner

What is the command to start the Jenkins service on Linux after installation?

Use sudo systemctl start jenkins to start the Jenkins service.

beginner

How do you check if Jenkins is running on your Linux system?

Run sudo systemctl status jenkins. It shows if Jenkins is active and running.

Which package manager is used to install Jenkins on Ubuntu Linux?

A apt

B yum

C pacman

D zypper

Ubuntu uses the apt package manager to install software like Jenkins.

What is the first step before installing Jenkins on a Debian-based system?

A Add Jenkins repository key

B Start Jenkins service

C Install Java

D Update package index

Jenkins requires Java, so installing Java first is essential before Jenkins installation.

Which command adds the Jenkins repository to your system?

A sudo apt install jenkins

B sudo systemctl start jenkins

C sudo apt update

D wget -q -O - https://pkg.jenkins.io/debian-stable/jenkins.io.key | sudo apt-key add -

This command downloads and adds the Jenkins repository key to your system.

How do you enable Jenkins to start automatically on system boot?

A sudo systemctl enable jenkins

B sudo systemctl start jenkins

C sudo apt install jenkins

D sudo systemctl stop jenkins

Enabling Jenkins with systemctl ensures it starts automatically when the system boots.

After installing Jenkins, where do you find the initial admin password?

A /etc/jenkins/config.xml

B /var/lib/jenkins/secrets/initialAdminPassword

C /usr/bin/jenkins

D /home/jenkins/password.txt

The initial admin password is stored in the secrets folder inside Jenkins data directory.

Describe the main steps to install Jenkins on a Debian-based Linux system.

Think about preparing the system, adding Jenkins source, and managing the service.

Explain why it is important to add the Jenkins repository key before installation.

Consider how your system knows the packages are safe.