Automatic Install of Maven with Jenkins and use within Pipeline

Assume you want a specific version of  Maven to be installed automatically when doing a build e.g because you need to have a build executed on a remote node.

This is what you need to do to perform this :

• Install the following 2 plugins on your Jenkins 2x instance ( if not already preseent :
• Config File Provider - https://wiki.jenkins-ci.org/display/JENKINS/Config+File+Provider+Plugin 
• Pipeline Maven Plugin - https://wiki.jenkins-ci.org/display/JENKINS/Pipeline+Maven+Plugin 
• Restart your Jenkins such as the Plugins can take effect
• Define your settings.xml file within  Jenkins > Manage Jenkins > Managed Files
• Click on Add a new Config
• choose Global Maven settings 
• choose a valid id name e.g GlobalMavenSettingsForXXX
• copy paste the settings.xml of your project on next page
• Note the settings.xml should allow you to get your plugins and dependencies from your repositories

• Define your Maven tool within the menu Jenkins > Manage Jenkins > Global Tool Configuration page
• Click on Maven Installations
• Specify name for your maven 
• Specify maven home directory e.g /usr/local/maven-3.2.5
• Check the Automatic install option
• Choose Install from Apache e.g maven-3.2.5

• Make sure that you Jenkins has access to install Maven within your maven home directory by executing the following command (on your slave ):
• sudo chmod -R ugo+rw /usr/local/maven-3.2.5

• Now you can use maven in your Jenkins pipeline using a command such as :

withMaven(globalMavenSettingsConfig: 'maven-atlas-global-settings', jdk: 'JDK6', maven: 'M3_3.2.5', mavenLocalRepo: '/home/ubuntu/.m2/repository/') {

   

           sh 'mvn  clean install ' 

            

        }

Note that you can use the Pipeline Syntax helper to fill the options you want to use with Maven .