Upgrading Jenkins involves downloading and deploying the new WAR file.
To check for new Jenkins versions, monitor the console for update notifications. Click the link provided to download the updated WAR file.
We’ve explored various methods to install Jenkins. Currently, we’re running Jenkins as a standalone service on Ubuntu. Locate the WAR file at /usr/share/jenkins/. If unsure, use a command like find / -name jenkins.war to search for it.
It’s advisable to back up the old WAR file before replacing it. Use a command like sudo cp -p /usr/share/jenkins/jenkins.war /usr/share/jenkins/jenkins.war.old for this purpose.
Replace the old WAR file with the downloaded one: mv ~/downloads/jenkins.war /usr/share/jenkins/
Restart Jenkins with sudo systemctl restart jenkins. Upon login, observe the updated version number displayed at the bottom left corner of the screen.
Over the past 20+ years, I have been working as a software engineer, architect, and programmer, creating, designing, and programming various applications. My main focus has always been to achieve business goals and transform business ideas into digital reality. I have successfully solved numerous business problems and increased productivity for small businesses as well as enterprise corporations through the solutions that I created.
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Embarking on your journey with Jenkins involves setting up your first job project. This initial task serves as a practical demonstration, guiding you through the process of configuring a job to perform a simple action: creating a file with the phrase “Hello World”. By following these steps, you’ll gain a foundational understanding of how Jenkins operates and how to execute basic tasks within its framework.
