Java 17 is available for early adopters when using the Docker images ( jenkins/jenkins: jdk17-preview) These requirements apply to all components of the Jenkins system, including Jenkins controller, all types of agents, CLI clients, and other components.
As of Version 2.38 of Jenkins it’s possible to use JDK 1.8. Jenkins now requires Java 8 or 11. To cite Jenkin’s Java Requirements: There are some precautions to take when upgrading from Java 8 to Java 11 in Jenkins, please follow these guidelines.
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. This plugin provides information about the JVM version of each agent on the node management screen of your Jenkins instance.
What is Jenkins version monitoring for Java?
Modern versions of Jenkins controllers and Jenkins agents verify Java requirements and notify users when they are launched with an unsupported version. The Jenkins Versions Node Monitors plugin provides detailed Java version monitoring.
Which JDK should I use for Jenkins jobs?
You can use any jdk ( 1.5+ 1.7+ for 1.608+ ) you want for Jenkins: this is separate from the JDK that a job would use (either a job running on the master, or on a slave). So it doesn’t really matter: using one JDK for running Jenkins won’t prevent you to use any other JDK for your jobs.
As you mentioned in your question, Jenkins is a platform to allow continuous integration – in simple words automation of procedures involved in development process. One of its common uses is to allow quick deployments of your code to your server whether if it’s development or production.
Can Jenkins run on Apache Tomcat?
Jenkins can also be run as a servlet in different Java servlet containers such as Apache Tomcat or Glass, and fish. In this post, we will learn installing Jenkins on Apache Tomcat Server step by step.
Does jenkins use apache?
Jenkins can be configured to use mod_ajp or mod_proxy_ajp so that Jenkins runs in a different workspace than the typical Tomcat server, but both are available via the Apache web server. Then setup Apache so that it knows that the prefix /jenkins is being served by AJP in the httpd., and conf file:.
Another frequent inquiry is “Can I run Jenkins behind an existing website?”.
In situations where you have existing web sites on your server, you may find it useful to run Jenkins (or the servlet container that Jenkins runs in) behind Apache, so that you can bind Jenkins to the part of a bigger website that you may have. This section discusses some of the approaches for doing this.
Another question we ran across in our research was “Can I hide Jenkins behind an Apache HTTP Server?”.
Running Jenkins Behind an Apache Server If you are running Jenkins in a Unix environment, you may want to hide it behind an Apache HTTP server in order to harmonize the server URLs and simplify maintenance and access.