How-To-Install-Jenkins-on-Debian-12.md

Gist for https://youtu.be/0EevQXwBV2A

Install Temurin JDK

From Deb installation on Debian or Ubuntu:

• Ensure the necessary packages are present:

  • apt install -y wget apt-transport-https curl

• Download the Eclipse Adoptium GPG key:

  • mkdir -p /etc/apt/keyrings
  • wget -O - https://packages.adoptium.net/artifactory/api/gpg/key/public | tee /etc/apt/keyrings/adoptium.asc

• Configure the Eclipse Adoptium apt repository:

  • echo "deb [signed-by=/etc/apt/keyrings/adoptium.asc] https://packages.adoptium.net/artifactory/deb $(awk -F= '/^VERSION_CODENAME/{print$2}' /etc/os-release) main" | tee /etc/apt/sources.list.d/adoptium.list

• Install Temurin 17

  • apt update
  • apt install temurin-17-jdk

Install Jenkins

From Jenkins Debian Packages:

• Add repository key

  • curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | sudo tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null

• Create apt repository

  • echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] https://pkg.jenkins.io/debian-stable binary/ | sudo tee /etc/apt/sources.list.d/jenkins.list > /dev/null

• Install Jenkins

  • apt update
  • apt 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 -f