Docker mongodb config file

I’m using the mongodb 3.4 official docker image. Since the mongod doesn’t read a config file by default, this is how I start the mongod service:

docker run -d --name mongodb-test -p 37017:27017 \
 -v /home/sa/data/mongod.conf:/etc/mongod.conf \
 -v /home/sa/data/db:/data/db mongo --config /etc/mongod.conf

removing -d will show you the initialization of the container

Using a docker-compose.yml:

version: '3'
services:
 mongodb_server:
    container_name: mongodb_server
    image: mongo:3.4
    env_file: './dev.env'
    command:
        - '--auth'
        - '-f'
        - '/etc/mongod.conf'
    volumes:
        - '/home/sa/data/mongod.conf:/etc/mongod.conf'
        - '/home/sa/data/db:/data/db'
    ports:
        - '37017:27017'

then

docker-compose up