How To Install Jenkins on Amazon Linux 2023

How-To-Install-Jenkins-on-Amazon-Linux-2023.md

Gist for https://youtu.be/xN3ks68uNKo

Install Temurin JDK

From CentOS/RHEL/Fedora Instructions:

• Create RPM repository

cat <<EOF > /etc/yum.repos.d/adoptium.repo
[Adoptium]
name=Adoptium
baseurl=https://packages.adoptium.net/artifactory/rpm/amazonlinux/2/\$basearch
enabled=1
gpgcheck=1
gpgkey=https://packages.adoptium.net/artifactory/api/gpg/key/public
EOF

• Install Temurin 17
  • dnf -y install temurin-17-jdk

Install Jenkins

From Jenkins Redhat Packages:

• Create RPM repository
  • wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
• Add repository key
  • rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
• Install Jenkins
  • dnf -y install jenkins

Configure Jenkins

• systemctl --full status jenkins
• systemctl edit jenkins

[Service]
Environment="JAVA_OPTS=-Djava.awt.headless=true -Djava.net.preferIPv4Stack=true -Djava.io.tmpdir=/var/cache/jenkins/tmp/ -Dorg.apache.commons.jelly.tags.fmt.timeZone=America/New_York -Duser.timezone=America/New_York"
Environment="JENKINS_OPTS=--pluginroot=/var/cache/jenkins/plugins"

• mkdir -p /var/cache/jenkins/tmp
• chown -R jenkins:jenkins /var/cache/jenkins/tmp
• systemctl show jenkins
• systemd-analyze verify jenkins.service
• systemctl start jenkins
• systemctl --full status jenkins
• journalctl -u jenkins

I follow same step
After installing Jenkins on Amazon Linux 2 EC2 and successful install, jenkins server start successful. But When I Login on browser with ec2-user-ip:8080 and show Unlock Jenkins then continue and go to Customize Jenkins box, Click on Install suggested plugins, then after I’m getting “An error occurred, Unable to connect to Jenkins” . So now what I do to solve this problem ?