version: '3'
services:
  mongo1:
    hostname: mongo1
    container_name: localmongo1
    image: mongo
    expose:
      - 27017
    ports:
      - 27017:27017
    restart: always
    entrypoint: ["/usr/bin/mongod", "--bind_ip_all", "--replSet", "rs0"]
    # volumes:
    #   - /data/db/mongotest:/data/db # This is where your volume will persist. e.g. VOLUME-DIR = ./volumes/mongodb

  mongo2:
    hostname: mongo2
    container_name: localmongo2
    image: mongo
    expose:
      - 27017
    ports:
      - 27018:27017
    restart: always
    entrypoint: ["/usr/bin/mongod", "--bind_ip_all", "--replSet", "rs0"]

  mongo3:
    hostname: mongo3
    container_name: localmongo3
    image: mongo
    expose:
      - 27017
    ports:
      - 27019:27017
    restart: always
    entrypoint: ["/usr/bin/mongod", "--bind_ip_all", "--replSet", "rs0"]

  rsinit:
    build:
      context: .
      dockerfile: rsinit
    depends_on:
      - mongo1
      - mongo2
      - mongo3
    entrypoint: ["sh", "-c", "rs.sh"]