There are separate run and job execution requirements for Jenkins installations. Modern Jenkins versions have the following Java requirements: Java 8 runtime environments, both 32-bit and 64-bit versions are supported Since Jenkins 2.164 and 2.164.1 [ 1], Java 11 runtime environments are supported.
Since Jenkins is commonly used for building and deploying the java applications, it offers excellent features for the same. As a default one, Jenkins will use the java version which it find from the system path.
From the Jenkins site here, it says versions older than Java 8 are not supported. However, there seem to be a workaround on using Open. Jdk 12 with Jenkins 2.121.3 on this stackoverflow post which could be of help.
If you’re upgrading your Jenkins controller to run on Java 11, you also need to upgrade the JVM on your agents. You can validate the version of each agent with the Versions Node Monitors plugin.
What is Jenkins on Ubuntu?
Jenkins is an open source continuous integration (CI) and continuous delivery (CD) tool built in Java. Jenkins basically builds, tests and deploy software projects. It’s one of the most useful development tools you can master, that’s why today we’ll show you how to install Jenkins on Ubuntu 18.04.
It’s used to automate parts of the testing, build, delivery, and deployment of soft ware . This guide will help you install Jenkins on an Ubuntu 18.04 system. Jenkins is a software platform that supports continuous integration (CI) and continuous delivery (CD). CI pushes code changes regularly into the official repository.
Production deployments should use only LTS versions of Jenkins. The easiest way to run Jenkins on Java 11 is with a Docker image. To use the latest weekly release of the Java 11-based images, use the jdk11 tag. For other releases, append the -jdk11 tag to the version (for example, 2.284-jdk11 ).
What do I need to set up a Jenkins installation?
To follow this tutorial, you will need: One Ubuntu 18.04 server configured with a non-root sudo user and firewall by following the Ubuntu 18.04 initial server setup guide. We recommend starting with at least 1 GB of RAM. See Choosing the Right Hardware for Masters for guidance in planning the capacity of a production Jenkins installation.
How much RAM do I need for Jenkins on Ubuntu?
One Ubuntu 20.04 server configured with a non-root sudo user and firewall by following the Ubuntu 20.04 initial server setup guide. We recommend starting with at least 1 GB of RAM. Visit Jenkins’s “ Hardware Recommendations ” for guidance in planning the capacity of a production-level Jenkins installation.
How do I run Jenkins on a docker container?
For Docker Container: Running Jenkins Server in Docker Container with Systemd Installation of Jenkins on Ubuntu 20.04/18.04 system can be done from Ubuntu packages or by downloading and running its Web application Archive (WAR) file. The most preferred method of installing Jenkins on Ubuntu 20.04/18.04 is from apt repository.
How do I install RedHat Yum on Jenkins?
It can be installed from the redhat-stable yum repository. A new release is produced weekly to deliver bug fixes and features to users and plugin developers. It can be installed from the redhat yum repository. Register the Jenkins service with the command: You can start the Jenkins service with the command:.