MongoDB replica sets

docker-compose-replicasets.yml

version: "3"

services:
  mongo.cfg1:
    container_name: mongo.cfg1
    image: mongo
    networks:
      - public
    restart: always
    volumes:
      - mongo.cfg.vol1:/data/db
      - /path/to/keyfile:/data/keyfile
    entrypoint: [ "/usr/bin/mongod", "--configsvr", "--bind_ip_all", "--replSet", "cfgrs", "--keyFile", "/data/keyfile"]
  mongo.cfg2:
    container_name: mongo.cfg2
    image: mongo
    networks:
      - public
    restart: always
    volumes:
      - mongo.cfg.vol2:/data/db
      - /path/to/keyfile:/data/keyfile
    entrypoint: [ "/usr/bin/mongod", "--configsvr", "--bind_ip_all", "--replSet", "cfgrs", "--keyFile", "/data/keyfile"]
  mongo.cfg3:
    container_name: mongo.cfg3
    image: mongo
    networks:
      - public
    restart: always
    volumes:
      - mongo.cfg.vol3:/data/db
      - /path/to/keyfile:/data/keyfile
    entrypoint: [ "/usr/bin/mongod", "--configsvr", "--bind_ip_all", "--replSet", "cfgrs", "--keyFile", "/data/keyfile"]

  mongo.s1:
    container_name: mongo.s1
    image: mongo
    networks:
      - public
    restart: always
    volumes:
      - mongo.s.vol1:/data/db
      - /path/to/keyfile:/data/keyfile
    entrypoint: [ "/usr/bin/mongod", "--shardsvr", "--bind_ip_all", "--replSet", "srs", "--keyFile", "/data/keyfile"]
  mongo.s2:
    container_name: mongo.s2
    image: mongo
    networks:
      - public
    restart: always
    volumes:
      - mongo.s.vol2:/data/db
      - /path/to/keyfile:/data/keyfile
    entrypoint: [ "/usr/bin/mongod", "--shardsvr", "--bind_ip_all", "--replSet", "srs", "--keyFile", "/data/keyfile"]
  mongo.s3:
    container_name: mongo.s3
    image: mongo
    networks:
      - public
    restart: always
    volumes:
      - mongo.s.vol3:/data/db
      - /path/to/keyfile:/data/keyfile
    entrypoint: [ "/usr/bin/mongod", "--shardsvr", "--bind_ip_all", "--replSet", "srs", "--keyFile", "/data/keyfile"]

volumes:
  mongo.cfg.vol1:
    name: "mongo.cfg.vol1"

  mongo.cfg.vol2:
    name: "mongo.cfg.vol2"

  mongo.cfg.vol3:
    name: "mongo.cfg.vol3"

  mongo.s.vol1:
    name: "mongo.s.vol1"

  mongo.s.vol2:
    name: "mongo.s.vol2"

  mongo.s.vol3:
    name: "mongo.s.vol3"

networks:
  public: