compose.yaml

version: "3.1"

services:
  ###########
  ## MONGO ##
  ###########
  mongo-1:
    image: mongo:latest
    container_name: "mongo-1"
    restart: always
    expose:
      - 27017
    healthcheck:
      test: mongo --eval "db.adminCommand('ping')"
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 20s
    volumes:
      - mongo-db-storage-1:/data/db
    entrypoint: [ "/usr/bin/mongod", "--replSet", "rsmongo", "--bind_ip_all"]
    networks:
      - mongo-cluster

  mongo-2:
    image: mongo:latest
    container_name: "mongo-2"
    restart: always
    expose:
      - 27017
    healthcheck:
      test: mongo --eval "db.adminCommand('ping')"
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 20s
    volumes:
      - mongo-db-storage-2:/data/db
    entrypoint: [ "/usr/bin/mongod", "--replSet", "rsmongo", "--bind_ip_all"]
    networks:
      - mongo-cluster

  mongo-3:
    image: mongo:latest
    container_name: "mongo-3"
    restart: always
    expose:
      - 27017
    healthcheck:
      test: mongo --eval "db.adminCommand('ping')"
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 20s
    volumes:
      - mongo-db-storage-3:/data/db
    entrypoint: [ "/usr/bin/mongod", "--replSet", "rsmongo", "--bind_ip_all"]
    networks:
      - mongo-cluster

  #################
  ## SETUP MONGO ##
  #################
  # Init mongo replica set using init script
  mongo-setup:
    image: mongo:latest
    restart: "no"
    depends_on:
      - mongo-1
      - mongo-2
      - mongo-3
    volumes:
      - ./setup/setup-replica.js:/setup-replica.js
    networks:
      - mongo-cluster
    entrypoint: mongo --host mongo-1:27017 /setup-replica.js      
    
volumes:
  mongo-db-storage-1:
  mongo-db-storage-2:
  mongo-db-storage-3:

networks:
  mongo-cluster: