docker-compose.yml

version: '3.8'
services:

  ######## MONGODB SHARD0 ########

  shard0-replica0:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --shardsvr --replSet shard0
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - shard0-replica0
    environment:
      - REPSET_NAME=shard0
      - DO_INIT_REPSET=true
    expose:
      - "27017"

  shard0-replica1:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --shardsvr --replSet shard0
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - shard0-replica1
    environment:
      - REPSET_NAME=shard0
    expose:
      - "27017"

  shard0-replica2:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --shardsvr --replSet shard0
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - shard0-replica2
    environment:
      - REPSET_NAME=shard0
    expose:
      - "27017"

  ######## MONGODB SHARD1 ########

  shard1-replica0:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --shardsvr --replSet shard1
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - shard1-replica0
    environment:
      - REPSET_NAME=shard1
      - DO_INIT_REPSET=true
    expose:
      - "27017"

  shard1-replica1:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --shardsvr --replSet shard1
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - shard1-replica1
    environment:
      - REPSET_NAME=shard1
    expose:
      - "27017"

  shard1-replica2:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --shardsvr --replSet shard1
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - shard1-replica2
    environment:
      - REPSET_NAME=shard1
    expose:
      - "27017"

  ######## MONGODB CONFIGDB ########

  configdb-replica0:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --configsvr --replSet configdb
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - configdb-replica0
    environment:
      - REPSET_NAME=configdb
      - DO_INIT_REPSET=true
    expose:
      - "27017"

  configdb-replica1:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --configsvr --replSet configdb
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - configdb-replica1
    environment:
      - REPSET_NAME=configdb
    expose:
      - "27017"

  configdb-replica2:
    build:
      context: mongod
    command: mongod -f /etc/mongod.conf --configsvr --replSet configdb
    volumes:
      - ./mongod/mongod.conf:/etc/mongod.conf
    networks:
      internalnetwork:
        aliases:
          - configdb-replica2
    environment:
      - REPSET_NAME=configdb
    expose:
      - "27017"

  ######## MONGODB MONGOS ROUTERS ########

  mongos-router0:
    build:
      context: mongos
    command: mongos --port 27017 --bind_ip 0.0.0.0 --configdb "configdb/configdb-replica0:27017,configdb-replica1:27017,configdb-replica2:27017"
    depends_on:
      - shard0-replica0
      - shard0-replica1
      - shard0-replica2
      - shard1-replica0
      - shard1-replica1
      - shard1-replica2
      - configdb-replica0
      - configdb-replica1
      - configdb-replica2
    networks:
      internalnetwork:
        aliases:
          - mongos-router0
    environment:
      - SHARD_LIST=shard0/shard0-replica0:27017,shard0-replica0:27017,shard0-replica0:27017;shard1/shard1-replica0:27017,shard1-replica0:27017,shard1-replica0:27017
    expose:
      - "27017"
    ports:
      - "27017:27017"  # Map the host workstation's port 27017 to the docker instance exposed port 27017 for 'direct' mongos access

  mongos-router1:
    build:
      context: mongos
    command: mongos --port 27017 --bind_ip 0.0.0.0 --configdb "configdb/configdb-replica0:27017,configdb-replica1:27017,configdb-replica2:27017"
    networks:
      internalnetwork:
        aliases:
          - mongos-router1
    expose:
      - "27017"
    ports:
      - "27018:27017"  # Map the host workstation's port 27018 to the docker instance exposed port 27017 for 'direct' mongos access

networks:
  internalnetwork: {}