Install Jenkins the easy way

Install Jenkins the easy way with docker

Pre-Requisites

To install any version of jenkins:

• Install Docker (https://docs.docker.com/get-docker/)

• After Installing pull the latest image of jenkins from docker hub

    docker pull jenkins/jenkins:lts-jdk11
  

• Preferably choose the lighter version of the image to reduce load of RAM

    docker pull jenkins/jenkins:alpine-jdk11
  

Run Jenkins:

• Run jenkins on http://localhost:8080 with one easy command

    docker run --rm -it --name jenkins-app -p 8080:8080 -p 50000:50000 --restart=on-failure -v jenkins_home:/var/jenkins_home jenkins/jenkins:alpine-jdk11
  

• To bash into the jenkins container:

    docker exec -it jenkins-app bash
  

• After running jenkins, browse to http://localhost:8080 and Unlock Jenkins

    sudo cat /var/lib/jenkins/secrets/initialAdminPassword
  
    sudo docker exec jenkins-app cat /var/jenkins_home/secrets/initialAdminPassword
  

• Then follow along with the remaining steps on the Jenkins UI

Customization:

• Build your custom jenkins image by creating a Dockerfile:

    FROM jenkins/jenkins:2.346.2-jdk11
    USER root
    RUN apt-get update && apt-get install -y lsb-release
    RUN curl -fsSLo /usr/share/keyrings/docker-archive-keyring.asc \
        https://download.docker.com/linux/debian/gpg
    RUN echo "deb [arch=$(dpkg --print-architecture) \
        signed-by=/usr/share/keyrings/docker-archive-keyring.asc] \
        https://download.docker.com/linux/debian \
        $(lsb_release -cs) stable" > /etc/apt/sources.list.d/docker.list
    RUN apt-get update && apt-get install -y docker-ce-cli
    USER jenkins
    RUN jenkins-plugin-cli --plugins "blueocean:1.25.5 docker-workflow:1.28"
  

• Build the Dockerfile:

    docker build -t myjenkins-blueocean:2.346.2-1 .