Monitoring a shell script (external job) running on CentOS with Jenkins

So I wanted to setup Jenkins external monitoring on a web server I have on a Centos VM, and I found a combination of these three blog posts worked!

• http://kvdev.wordpress.com/2012/03/01/jenkins-monitoring-external-jobs/
• http://stackoverflow.com/questions/11830098/setup-jenkins-to-monitor-external-job
• https://gist.github.com/junaid18183/8450761

Firstly, run the following commands : wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo rpm --import http://pkg.jenkins-ci.org/redhat/jenkins-ci.org.key yum -y install jenkins … or download the RPM at http://pkg.jenkins-ci.org/redhat/ and run “rpm -Uhv jenkinx*.rpm”

• run the following:

cd /usr/lib/jenkins
unzip /usr/lib/jenkins/jenkins.war

• Install OpenJDK while you’re at it.
• Go to Jenkins and create a “Monitor an external job” called “New Job”

\* Create an environment variable by 
$export JENKINS\_HOME=http://jenkins\_host:8080 , replacing "jenkins\_host" with the server running Jenkins

• To have Jenkins monitor a script, run a command like the following…

java -jar /usr/lib/jenkins/WEB-INF/lib/jenkins-core-\*.jar “New Job” /path\_to/myreport.sh 2>&1 > /dev/null And you can put that command in a cron job too!