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.

   sudo yum install epel-release -y 
   sudo yum-config-manager --enable epel
   sudo yum install daemonize java-1.8.0-openjdk-devel -y
   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
   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. Skip Plugin Installation; We can do it later
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”