Deploying Jenkins and GitLab with Docker Compose

1. Deploy Jenkins

Create a docker-compose.yml file with the following content:

version: '3.1'
services:
  jenkins:
    image: jenkins/jenkins:2.346.3
    volumes:
      - /data/jenkins/:/var/jenkins_home
      - /var/run/docker.sock:/var/run/docker.sock
      - /usr/bin/docker:/usr/bin/docker
      - /usr/lib/x86_64-linux-gnu/libltdl.so.7:/usr/lib/x86_64-linux-gnu/libltdl.so.7
    ports:
      - "8080:8080"
    expose:
      - "8080"
      - "50000"
    privileged: true
    user: root
    container_name: jenkins
    environment:
      JAVA_OPTS: '-Djava.util.logging.config.file=/var/jenkins_home/log.properties'

Start the container in detached mode: docker-compose -f /root/docker-compose.yml up -d 2. Deploy GitLab

Create a docker-compose-gitlab.yml file with the following content:

version: '3.8'
services:
  web:
    image: 'gitlab/gitlab-ee:latest'
    restart: always
    hostname: 'gitlab.example.com'
    environment:
      GITLAB_OMNIBUS_CONFIG: |
        external_url 'https://gitlab.example.com'
        # Add any other gitlab.rb configuration here, each on its own line
    ports:
      - '80:80'
      - '443:443'
      - '22:22'
    volumes:
      - '$GITLAB_HOME/config:/etc/gitlab'
      - '$GITLAB_HOME/logs:/var/log/gitlab'
      - '$GITLAB_HOME/data:/var/opt/gitlab'
    shm_size: '256m'

Launch GitLab with: docker-compose -f /root/docker-compose-gitlab.yml up -d 3. Retrieve Initial Passwords

After the containers are running, locate the configuration directory and view the password files:

cd /config/
ls -l
cat initial_root_password

The commands list files such as gitlab.rb, gitlab-secrets.json, and initial_root_password, and display the generated root password needed to log into GitLab.

Images in the original article illustrate the Docker Compose output and the password file contents.