jenkins Ubuntu Server installation.txt

0. update the server first
    
    apt-get update
    ===============
    
1. Check java is installed or not using the below command
   
   java --version
   ==============

2.If not installed java install it

  <!-- java is IMP for jenkins -->

   sudo apt install openjdk-11-jdk         
   ===============================

3.Update the server
  
   sudo apt update
   ===============

4.Add jenkins key 

  wget -q -O - https://pkg.jenkins.io/debian/jenkins.io.key | sudo apt-key add -
  ==============================================================================

5.create file 
  
  sudo sh -c 'echo deb http://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'
  ========================================================================================================

6.Update 

  sudo apt update
  ===============

7.install jenkins

  sudo apt install jenkins
  ========================

8.Start the jenkins 

  sudo systemctl start jenkins
  ============================

9.Enable the booting process of jenkins

  sudo systemctl enable jenkins
  =============================

10.Check the status of jenkins
 
  sudo systemctl status jenkins
  =============================

11.Give Port Number to the Jenkins 
    
  sudo ufw allow 8080
  ===================

  if you want update the number just change the 8080 into what you want 

12.Login jenkins through web use 

   http://Server-ip-addr:Port-Number
   =================================

      http://192.192.192.01:8080

      protocol://YourSystemIp:PortNumber
      ==================================

13.After goto the main page or jenkins page you need to login by using password the password is located in the 
   below path in maximum times .or it will show the path where the password is located 

   sudo cat /var/lib/jenkins/secrets/initialAdminPassword
   ======================================================