Backing Up Jenkins with Docker and Pushing the Image to Artifactory

To simplify Jenkins backup, the article suggests running Jenkins inside Docker and periodically saving the Docker image, then uploading it to Artifactory.

Install Docker Jenkins

Download the LTS version from the Jenkins website and pull the image:

# Download specific LTS version 2.130
sudo docker pull jenkins/jenkins:2.130

# Run the Docker Jenkins
sudo docker run -p 8080:8080 -p 50000:50000 jenkins/jenkins:2.130

For the latest LTS version, use:

sudo docker pull jenkins/jenkins:lts

sudo docker run -p 8080:8080 -p 50000:50000 jenkins/jenkins:lts

After starting, access Jenkins at http://hostname:8080/.

Change Login Password

List Docker images and containers, then enter the running container to retrieve the initial admin password:

sudo docker image list

sudo docker ps

sudo docker exec -it 39bc7a8307d9 /bin/bash

cat /var/jenkins_home/secrets/initialAdminPassword

Commit the container after changing the password:

sudo docker commit 39bc7a8307d9 myjenkins:v0.1

Mount Host Directory into Docker

Run Docker with a volume to map a host directory for backups:

sudo docker run -p 8080:8080 -p 50000:50000 --name mydata -v /data/backup:/home/backup jenkins/jenkins:2.130

Verify backup files inside the container.

Upload Image to Artifactory

Configure Docker to trust the Artifactory registry, log in, tag the image, and push it:

{ "insecure-registries": ["dln.dev.mycompany.com:8040"] }

sudo docker login dln.dev.mycompany.com:8040

sudo docker tag myjenkins:v0.1 dln.dev.mycompany.com:8040/docker-local/myjenkins:v0.1

sudo docker push dln.dev.mycompany.com:8040/docker-local/myjenkins:v0.1

The push output shows the image layers being uploaded and the image becoming available in the Artifactory Docker repository.