Add these option to java starting arguments

–sessionTimeout=1440 –sessionEviction=43200

e.g.

root@debian11-21:[~]: ps fauxw | grep jenk
jenkins    18642  0.3 31.6 4715720 1268388 ?     Ssl  Dec20   4:05 /usr/bin/java -Djava.awt.headless=true -jar /usr/share/java/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080 --sessionTimeout=1440 --sessionEviction=43200

If its started via systemd add the override file /etc/systemd/system/jenkins.service.d/override.conf with content

JENKINS_OPTS=--sessionTimeout=1440 --sessionEviction=43200

Reload daemon and service:

systemctl daemon-reload
systemctl restart jenkins

Ansible steps:

- name: Create a jenkins.service override directory
  file:
    owner: root
    group: root
    mode: 0755
    path: /etc/systemd/system/jenkins.service.d
    state: directory

- name: Increase session timeout for logged in users
  ini_file:
    dest: /etc/systemd/system/jenkins.service.d/override.conf
    owner: root
    group: root
    mode: 0644
    section: Service
    option: Environment
    value: '"JENKINS_OPTS=--sessionTimeout=1440 --sessionEviction=43200"'

- name: Restart jenkins
  systemd:
    name: jenkins
    daemon_reload: yes
    state: restarted

Example from docker compose file:

jenkins:
        # https://hub.docker.com/r/jenkins/jenkins/tags?page=1&name=lts
        build:
            context: .
            dockerfile: Dockerfile-jenkins-docker
        container_name: jenkins-docker
        networks:
            - buildnet
        restart: always
        environment:
            - TZ=Europe/Berlin
            - JENKINS_OPTS=--sessionTimeout=1440 --sessionEviction=43200 # increase user session duration

• Jenkins 2.414.1

• Increase rundeck user session timeout
• Dockerized jenkins install with docker in docker via ansible (dind)

• https://stackoverflow.com/questions/75649284/jenkins-docker-session-timeout-configuration