Install Jenkins On Amazon Linux

Install Jenkins

1. Create EC2 instance with Amazon Linux 2 AMI
2. We will be using open java for our demo, Get latest version from http://openjdk.java.net/install/

   yum -y install java-1.8.0-openjdk

3. Lets install java and set the java home

   java -version
   find /usr/lib/jvm/java-1.8* | head -n 3
   
   #JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-1.el7_6.x86_64
   export JAVA_HOME
   PATH=$PATH:$JAVA_HOME
   
   # To set it permanently update your .bash_profile
   source ~/.bash_profile

4. Check java version

   java -version

5. You can install jenkins using the rpm or by setting up the repo. We will setup the repo so that we can update it easily in future.

   wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo

   rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key

   amazon-linux-extras install epel -y

   yum -y install jenkins

6. Start Jenkins

   # Start jenkins service
   systemctl start jenkins

   # Setup Jenkins to start at boot,
   systemctl enable jenkins

7. By default jenkins runs at port 8080, You can access jenkins at

   http://YOUR-SERVER-PUBLIC-IP:8080

Configure Jenkins

1. The default Username is admin
2. Grab the default password

   Password Location:/var/lib/jenkins/secrets/initialAdminPassword

3. Install the suggested plugins
4. Change admin password

   Admin > Configure > Password

5. Configure java path

   Manage Jenkins > Global Tool Configuration > JDK

6. Create another admin user id

Test Jenkins Jobs

1. Create “new item”
2. Enter an item name – My-First-Project
3. Chose Freestyle project
4. Under Build section Execute shell : echo “Welcome to Jenkins Demo”
5. Save your job
6. Build job
7. Check “console output”