Jenkins – Java application, Platform independent.
used: Continuous integration and continuous delivery.
Jenkins pull code from git, if build unsuccessful it inform developers. If build successful: post build actions unit test, developers will get status report.

  1. Steps to Install Jenkins:
    Step1: Download Jenkins
    download war file
    step 2: Place war file in any location on system
    step 3: go to command/terminal
    – goto folder where jenkins.war is
    – Run: java -jar jenkins.war
    – copy password: save it
    you will find same password in .jenkins/secrets/initialAdmin Password
    step 4: Goto browser: http://localhost:8080, paste password
    step 5: Install suggested plugins or select plugins to install
    step 6: Create First Admin user
    Step 7: Start using Jenkins
    Step 8: All config, logs, Plugin in jenkin Directory: it is hidden and found in your home folder i.e. here in my case /Users/vijay/.jenkins
  2. Setup Jenkins on Tomcat:
    Why on Tomcat? start all applications on same server. Most applications on tomcat
    Step 1: Tomcat 5 and above, need java7 and above should be avaliable
    Download tomcat:goto, download tomcat 8
    unzip and place Tomcat folder at any location
    step 2: Copy and paste the jenkins folder inside Tomcat/Webapps folder
    Step 3: Goto Command prompt/Termina
    goto tomcat/bin directory
    – make all files executable chmod +x *.sh
    Step 4: Start Tomcat: ./, to shutdown ./
    Step 5: Verify if Tomcat started goto http://localhost:8080
    Step 6: Verify if jenkins is running on tomcat http://locathost:8080/jenkins, enter username as admin and password
    Step 7: To start jenkins on standalone on different port : goto folder where jenkins.war file is, #java -jar jenkins.war –httpPort=8181
    Step 9: go to http://localhost:8181 and check you will see it is running.