Install Jenkins server

Install Docker

sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    software-properties-common

Download repository key

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

Add repository

sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

Update repositories

sudo apt update

Install docker

sudo apt install docker-ce

Run jenkins

Run this for the latest LTS build:

sudo docker run`-i -t -d -p 8080:8080 -p 50000:50000 -v /var/jenkins_home/:/var/jenkins_home --env jenkinsci/jenkins:lts

or this for the latest build:

sudo docker run`-i -t -d -p 8080:8080 -p 50000:50000 -v /var/jenkins_home/:/var/jenkins_home --env jenkinsci/jenkins

When you're running jenkins inside a subdirectory (https://example.com/jenkins) you have to use this line:

sudo docker run`-i -t -d -p 8080:8080 -p 50000:50000 -v /var/jenkins_home/:/var/jenkins_home --env JENKINS_OPTS="--prefix=/jenkins" jenkinsci/jenkins:lts

If you want an output you have to amend the parameters "-i -t -d".

Now you can connect to jenkins trough port 8080. The configuration is located at /var/jenkins_home.

Use jenkins

To restart Jenkins manually, you can use either of the following commands:

Allows all running jobs to complete. New jobs will remain in the queue to run after the restart is complete.

(jenkins_url)/safeRestart

Forces a restart without waiting for builds to complete.

(jenkins_url)/restart

copypaste

Start jenkins server in docker

sudo screen -S jenkins docker run -p 8080:8080 -p 50000:50000 -v /var/jenkins_home/:/var/jenkins_home --env JENKINS_OPTS="--prefix=/jenkins" jenkinsci/jenkins:lts

Resume screen

sudo screen -r jenkins

Disable SSL certificate check

sudo docker exec -it 11c99221f2f34c5976b2680a2c19b352e089268cb5df6f6c3a299c7015ec40ea git config --global http.sslVerify "false"