Passing arguments to service in docker-compose.yml

Question

What I want to do is this:

version: '2'
services:
  app:
    volumes:
      - .:/app
    image: redis-test
    entrypoint: /app/src/main.rb
    working_dir: /app
    links:
      - redis
  redis:
    image: redis
    args:
      - appendonly=yes

When I run docker-compose up it complains:

Unsupported config option for services.redis: 'args'

Is this possible?

EDIT

More context: http://redis.io/topics/persistence#append-only-file

Answer 1

Yes, you can do this using command , but first you need to take a look at what the default command is in the redis Dockerfile .

This should work for you:

redis:
  image: redis
  command: redis-server --appendonly yes