Learning Continuous Integration with Jenkins - Second Edition

Testing the data volume

We will test our data volume by performing the following steps:

1. We will make some changes on our Jenkins server; this will modify the content inside the /var/jenkins_home directory.
2. We will delete the Jenkins container.
3. We will create a new Jenkins container that will use the same data volume.
4.  Check for the active Jenkins container using the following command:

        sudo docker ps --format "{{.ID}}: {{.Image}} {{.Names}}"

  You should see the following output:

        5d612225f533: jenkins/jenkins:lts jenkins_prod 

5. Access the Jenkins server using http://<ip address of docker host>:8080.

6. Get the contents of the initialAdminPassword  file using the following command:

        sudo docker exec -it jenkins_prod \ cat /var/jenkins_home/secrets/initialAdminPassword ...