Recently I investigate the scalability of Jenkins. In my idea, I want to make hot standby Jenkins server with NFS. So the plugins which enable us to do that are required. And for my study, I decided to develop on Vagrant and VirtualBox. It costs me very little because there is no need to get real server. So in this post, I will describe how to set up your jenkins plugin environment on your vagrant Ubuntu.
Vagrantfile is below. Before this, you should download precise64 box on vagrant site
# -*- mode: ruby -*- # vi: set ft=ruby : Vagrant.configure("2") do |config| # Every Vagrant virtual environment requires a box to build off of. config.vm.box = "ubuntu" # Create a forwarded port mapping which allows access to a specific port # within the machine from a port on the host machine. In the example below, # accessing "localhost:8080" will access port 80 on the guest machine. config.vm.network :forwarded_port, guest: 8080, host: 8080 end
Jenkins plugin server starts on port 8080. So you need to write guest port 8080. Host port can be written any number. And start vagrant.
$ vagrant up
Jenkins plugins are build with Maven. In this time, Maven3 can build sample plugin easily, so I recommend that you download maven3.
$ sudo apt-get install maven
Write settings.xml as below.
<settings> <pluginGroups> <pluginGroup>org.jenkins-ci.tools</pluginGroup> </pluginGroups> <profiles> <!-- Give access to Jenkins plugins --> <profile> <id>jenkins</id> <activation> <activeByDefault>true</activeByDefault> <!-- change this to false, if you don't like to have it on per default --> </activation> <repositories> <repository> <id>repo.jenkins-ci.org</id> <url>http://repo.jenkins-ci.org/public/</url> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>repo.jenkins-ci.org</id> <url>http://repo.jenkins-ci.org/public/</url> </pluginRepository> </pluginRepositories> </profile> </profiles> <mirrors> <mirror> <id>repo.jenkins-ci.org</id> <url>http://repo.jenkins-ci.org/public/</url> <mirrorOf>m.g.o-public</mirrorOf> </mirror> </mirrors> </settings>
I failed to create my plugin in this time bacause of lack of JDK. Ubuntu 12.04 LTS doesn’t have JDK in own image. You have to install it.
$ sudo apt-get install default-jdk
Building plugin with maven command.
$ mvn install
And demonstrate your plugin.
$ mvn hpi:run
You can see Jenkins web UI on http://localhost:8080/jenkins unless maven command has not exit. So now, I can get multi Jenkins server for mutual mount on NFS. My Jenkins study has been continued.Written on November 16th, 2013 by Kai Sasaki