The Jenkins project provides Docker images for controllers (and more). Beginning with Jenkins 2.344 released April 18, 2022 and Jenkins 2.332.3 released May 04, 2022, the behavior of the "Exit" and "Restart" lifecycle of the controller image jenkins/jenkins changed. TL;DR; Ensure that you have a Container Restart Policy For quick readers: check the How to Add a Container Restart Policy section for immediate actions to be taken. Application...

A continuous integration environment is a mixed bag of machines, platforms, build toolchains and operating systems. Ideally, you want as much flexibility as possible in managing these environments. You want your build machines to be interchangeable and you don’t want to tie your builds to a particular machine. Using containers as build agents is an effective way to get the flexibility you need to create applications faster...

The Jenkins project provides Docker images for controllers, inbound agents, outbound agents, and more. Beginning with Jenkins 2.307 released August 17, 2021 and Jenkins 2.303.1 released August 25, 2021, the Docker images provided by the Jenkins project will use Java 11 instead of Java 8. Controllers use Java 11 by default If you are running one of the Jenkins Docker controller images that does not include a...

Beginning with Jenkins 2.279 and Jenkins 2.263.4, the Jenkins project is upgrading the base operating system and Java version used in the jenkins/jenkins:latest and jenkins/jenkins:lts images. The update replaces OpenJDK 8u242 with AdoptOpenJDK 8u282 and replaces Debian 9 ("Stretch") with Debian 10 ("Buster"). Why? We’re changing the base image so that we have a better supported operating system and a more current Java release for Jenkins controllers. Better...

We would like to announce the availability of official Windows agent images for Docker. These images allow provisioning Jenkins agents with Windows OS on Docker and Kubernetes. New images All official Docker images for agents now provide nanoserver-1809 and windowsservercore-1809 tags which include Windows images and, at the moment, Java 8 (these are like the latest tag). We also provide tags with explicit Java selection, e.g. jdk8-windowsservercore-1809 or...

We would like to announce the renaming of the official Docker images for Jenkins agents. It does not have any immediate impact on Jenkins users, but they are expected to gradually upgrade their instances. This article provides information about the new official names, upgrade procedure, and the support policy for the old images. We will also talk about what’s next for the Docker packaging in Jenkins. New image...

There are now three different Docker Hub repositories that are or have been used as the "official" Jenkins image. This article aims at providing a clarification about which one is the current official one (as of December 2018 :-)). The official one docker pull jenkins/jenkins i.e. https://hub.docker.com/r/jenkins/jenkins/ is the right repository to use. I also documented some time ago on my blog the recommended way to run Jenkins using...

I would like to introduce Custom WAR Packager - a new tool for Jenkins administrators and developers. This tool allows packaging custom Jenkins distributions as WAR files, Docker images and Jenkinsfile Runner bundles. This tool allows packaging Jenkins, plugins, and configurations in a ready-to-fly distribution. Custom WAR packager is a part of the Ephemeral Jenkins controller toolchain which we presented in our A Cloud Native Jenkins blogpost. This toolchain is already used...

More and more today, continuous delivery (CD) pipelines are making use of containers. In many implementations, the primary workflow/orchestration tool for CD pipelines is Jenkins. And the primary container orchestration tool is Docker. Together these two applications provide a powerful, yet simple to understand and use, model for leveraging containers in your CD pipeline. When creating a pipeline script in Jenkins, there are multiple ways to incorporate Docker...

This is a guest post by Liam Newman, Technical Evangelist at CloudBees. There are less than three weeks left until Jenkins World 2017. Like last year, I’ll be at the "Ask the Experts" booth to answer questions about all things Jenkins. In preparation, I’ve started a continuing series of quick tutorial videos that answer some of the most common questions I’ve seen asked in the community forums. These are by no means...