docker-compose:
beat:
    build: ./django
    command: sh run_beat.sh
    depends_on:
      - rabbit
    volumes:
      - ./django/caretaqer/:/code
    environment:
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
      - POSTGRES_USER=${POSTGRES_USER}
      - POSTGRES_DB=${POSTGRES_DB}
      - REDIS_PASSWORD=${REDIS_PASSWORD}
    env_file:
      - ./django/django_variables.env
    restart: unless-stopped
    deploy:
      restart_policy:
        condition: on-failure
    networks:
      - django_network
dockerfile:
FROM python:3.5
ENV PYTHONUNBUFFERED 1

RUN mkdir /code
WORKDIR /code
ADD requirements.txt /code/
RUN pip install -r requirements.txt
ADD . /code/
RUN adduser --disabled-password --gecos '' django_user
y por último, run_beat.sh:
#!/bin/sh

su -m django_user -c "celery -A caretaqer beat -l info --scheduler django_celery_beat.schedulers:DatabaseScheduler"