Docker Compose spec to launch Jenkins along with dind (docker host) as per the official documentation at https://www.jenkins.io/doc/book/installing/#installation-platforms

docker-compose-jenkins.yaml

version: "3.8"

networks:
  jenkins:
    driver: bridge

volumes:
  jenkins-docker-certs:
  jenkins-data:

services:
  docker:
    image: docker:dind
    ports:
      - 2376:2376
    environment:
      - DOCKER_TLS_CERTDIR=/certs
    networks:
      jenkins:
        aliases:
          - docker
    privileged: true
    volumes:
      - jenkins-docker-certs:/certs/client
      - jenkins-data:/var/jenkins_home

  jenkins:
    image: jenkinsci/blueocean
    ports:
      - 8080:8080
      - 50000:50000
    environment:
      - DOCKER_HOST=tcp://docker:2376
      - DOCKER_CERT_PATH=/certs/client
      - DOCKER_TLS_VERIFY=1
    networks:
      jenkins:
        aliases:
          - docker
    volumes:
      - jenkins-data:/var/jenkins_home
      - jenkins-docker-certs:/certs/client:ro
    depends_on:
      - docker