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• if the Jenkins container is restarting again and again then check the logs using below command

  Code Block
  language bash
  sudo docker logs --tail 50 –follow --timestamps Jenkins

  
  

• If the logs are showing like below Wrong volume permissions?
  

  Code Block
  language bash
  touch: cannot touch '/var/jenkins_home/copy_reference_file.log': Permission denied Can not write to /var/jenkins_home/copy_reference_file.log.

  The volume directory /data/jenkins need to be separated with the admin ownership to keep the Jenkins home

  Code Block
  language bash
  sudo chown 1000 /data/Jenkins

  Then run the command: (Now the container is up and running.)

          sudo docker ps -a 

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• Code Block
  language bash
  sudo docker ps -a

  Executing into Jenkins container

  Code Block
  language bash
  sudo docker exec -it jenkins /bin/bash

  Inside the Jenkins container, go to /var/Jenkins_home/secrets/ directory. Copy the initial admin password like this

  Code Block
  language bash
  cat /var/Jenkins_home/secrets/initialAdminPassword