docker-compose.yml

version: '2'
services:

  jenkins-master:
    container_name: jenkins-master
    hostname: jenkins-master
# We can use jenkins image staright and it would result the same but its better to cache plugin install from Dockerfile
#    image: jenkins/jenkins:lts

    build: ./jenkins-master
    environment:
      - "JAVA_OPTS=-Djenkins.install.runSetupWizard=false -Djava.awt.headless=true -Djenkins.slaves.DefaultJnlpSlaveReceiver.disableStrictVerification=true"
      - "JNLP_PROTOCOL_OPTS=-Dorg.jenkinsci.remoting.engine.JnlpProtocol3.disabled=false"
      - "PROJECT_GIT=https://github.com/hasnat/stateless-jenkins.git"
      - "PROJECT_NAME=Stateless Jenkins"
      - "PROJECT_BUILD=true"
      - "PROJECT_PLUGINS="
    ports:
      - "8080:8080"
    volumes:
      #- "./.ssh:/var/jenkins_home/.ssh:ro"
      - "./projects:/usr/local/jenkins-projects"
      - "./jenkins-slave-secret:/var/jenkins_secrets"
      - "./init.d:/usr/share/jenkins/ref/init.groovy.d"

  jenkins-slave:
    container_name: jenkins-slave
    hostname: jenkins-slave
    build: ./jenkins-slave
    privileged: true
    restart: always
    environment:
      - JENKINS_URL=http://jenkins-master:8080
      - JENKINS_NAME=docker-agent
      #- JENKINS_SECRET=this_is_moved_to_entrypoint
      - JNLP_PROTOCOL_OPTS=-Dorg.jenkinsci.remoting.engine.JnlpProtocol3.disabled=false
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock"
      - "./projects:/usr/local/jenkins-projects"
      - "./jenkins-slave-secret:/var/jenkins_secrets"
      - "./init.d:/usr/share/jenkins/ref/init.groovy.d"