Jenkins Installation

Sunday, May 15, 2016

Jenkins Installation

Check if anything is running on the port 8080 which is used by the jenkins by default

 telnet localhost 8080

Install the Java JDK which is required by the Jenkins

 mkdir /usr/java

 cd /usr/java

 wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u92-b14/jdk-8u92-linux-x64.tar.gz

 tar -xf jdk-8u92-linux-x64.tar.gz

 cd jdk1.8.0_92/

 update-alternatives --install /usr/bin/java java /usr/java/jdk1.8.0_92/bin/java 100

 update-alternatives --config java

 update-alternatives --install /usr/bin/javac javac /usr/java/jdk1.8.0_92/bin/javac 100

 update-alternatives --config javac

 update-alternatives --install /usr/bin/jar jar /usr/java/jdk1.8.0_92/bin/jar 100

 update-alternatives --config jar

Setup the JAVA_HOME

 vi /etc/rc.d/rc.local

 export JAVA_HOME=/usr/java/jdk1.8.0_92/

  export JRE_HOME=/usr/java/jdk1.8.0._92/jre

 export PATH=$PATH:/usr/java/jdk1.8.0_92/bin:/opt/java/jdk1.8.0_92/jre/bin

Import the Jenkins repo

 sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo

Import the keys for the repo

 sudo rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key

Enable the jenkins service to start at runtime

 /bin/systemctl enable jenkins.service

 /bin/systemctl restart jenkins.service

This completes the installation of the jenkins. You can access the web-console by entering your ip followed by port 8080

You would need to copy the password from the location "/var/lib/jenkins/secrets/initialAdminPassword" and paste in the console as a step in the new installation.

 cat /var/lib/jenkins/secrets/initialAdminPassword

Next select the default plugins to be installed. this will install some the most commonly used plugins alternatively you can select the plugins which should be installed.