Install Jenkins using terraform to create computing instancing and remote setup

Steps

• Terraform order new ec2 instance from aws
  • AMI : Red Hat Enterprice
  • Security Group
    • ssh access on port 22
    • http access on port 8080
  • key name attached
• User data file will contain: // Install Java on the system
  • sudo yum -y install java-1.8.0-openjdk wget
  • java -version // Install Jenkins
  • sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
  • cd /etc/yum.repos.d/
  • sudo curl -O https://pkg.jenkins.io/redhat-stable/jenkins.repo
  • sudo yum -y install jenkins // Start and Enable Jenkins server
  • sudo systemctl start jenkins
  • sudo systemctl enable jenkins
  • systemctl status jenkins // Install firewalld on the server
  • sudo dnf install firewalld
  • sudo systemctl enable firewalld --now
  • sudo firewall-cmd --state // Allow communication on port 8080
  • sudo firewall-cmd --permanent --add-port=8080/tcp
  • sudo firewall-cmd --reload // print out default password
  • sudo cat /var/lib/jenkins/secrets/initialAdminPassword

N.B : After running this once you can create an AMI and going forward create your ec2 instance with that AMI