jenkins maven git build machine java ubuntu 12.04

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install openjdk-7-jdk maven        # 500+ MB as maven3 uses Java6

java --version
mvn --version       # reveals Maven home: /usr/share/maven

apt-get install git-core

mkdir ~/.ssh
ssh-keygen -t rsa     (ssh-keygen -t dsa  = protocol 2)
chmod 400 id_rsa

git clone git@server.com:reponame.git   # Test connectivity + ssh key
cd directory-with-pom-xml  # ensure this is the root ancestor parent
mvn clean validate  # test maven configuration and ensure dependencies are downloaded properly
e.g.  mvn -DCOMMON_VERSION_NUMBER=2.0.0-SNAPSHOT clean install

wget http://mirrors.jenkins-ci.org/war/latest/jenkins.war
java -jar jenkins.war

http://10.10.10.233:8080/
http://10.10.10.233:8080/manage
http://yourhost/jenkins/pluginManager  (Available tab)
Git Plugin (download and install and restart browser)
    OR by hand http://updates.jenkins-ci.org/download/plugins/
    THEN download the *.hpi file into the $JENKINS_HOME/plugins

http://10.10.10.233:8080/manage -> CONFIGURE
http://10.10.10.233:8080/configure
Git (Add Git) -> APPLY
Maven (Add Maven) -> /usr/share/maven -> APPLY


http://10.10.10.233:8080/view/All/newJob
Build a maven2/3 project
Source Code Management = Git -> git@server.com:reponame.git
If necessary customize: Build -> Root POM
                        Build -> Goals and options (e.g. clean test package install)
                        ADVANCED -> MAVEN_OPTS = -DCOMMON_VERSION_NUMBER=2.0.0-SNAPSHOT

 mvn -DCOMMON_VERSION_NUMBER=2.0.0-SNAPSHOT -f ~/acmeserver-common/acmecloudservice/parentservercommon/pom.xml clean install

http://10.10.10.233:8080/exit       # shut down jenkins