Setup for Chagrade

##################################  docker-compose.yml  ###########################################
version: '2'
services:
  # --------------------------------------------------------------------------
  # Django/Gunicorn
  # --------------------------------------------------------------------------
  django:
    build: .
    hostname: django
    command: /usr/local/bin/gunicorn chagrade.wsgi:application -w 2 -b :8000 --reload
    env_file: .env
    volumes:
      - .:/app
    ports:
      - "80:8000"
    depends_on:
      - postgres
    links:
      - postgres
    logging:
      options:
        max-size: "200k"
    container_name: django
    stdin_open: true
    tty: true

  # --------------------------------------------------------------------------
  # Database
  # --------------------------------------------------------------------------
  postgres:
    image: postgres:9.5
    environment:
      - PGDATA=/app/var/lib/postgresql/data/pgdata
      - POSTGRES_DB=${DB_NAME}
      - POSTGRES_USER=${DB_USER}
      - POSTGRES_PASSWORD=${DB_PASSWORD}
    ports:
      - 5432:5432
    volumes:
      - ./var/lib/postgresql/data:/app/var/lib/postgresql/data
    env_file: .env
    logging:
      options:
        max-size: "200k"
    container_name: postgres
  #-----------------------------------------------
  #   Rabbitmq Service
  #-----------------------------------------------
  rabbitmq:
    image: rabbitmq:3-management
    container_name: rabbit
    hostname: rabbit
    env_file: .env
    ports:
      - 15672:15672
      - 5672:5672
    volumes:
      - ./var/rabbitmq:/var/lib/rabbitmq/
  #-----------------------------------------------
  #   Celery Service
  #-----------------------------------------------
  celery:
    container_name: celery
    hostname: celery
    command: bash -c "celery -A chagrade worker --loglevel=debug"
    working_dir: /app/
    build:
      context: .
      dockerfile: Dockerfile.celery
    depends_on:
      - rabbitmq
      - postgres
    environment:
      - DJANGO_SETTINGS_MODULE=chagrade.settings.base
    env_file: .env
    volumes:
      - .:/app
  #-----------------------------------------------
  #   Flower Service
  #-----------------------------------------------
  flower:
    container_name: flower
    hostname: flower
    env_file: .env
    build:
      context: .
      dockerfile: Dockerfile.flower
    ports:
      - 15555:5555
    depends_on:
      - celery
      - rabbitmq
#####################################################################################################################


#########################################  Dockerfile  ##############################################################

FROM python:3.7
ENV PYTHONUNBUFFERED 1

# Install the gunicorn server to serve django
#RUN pip install gunicorn==19.6.0

# Install the dependencies (rarely change)
ADD requirements.txt .
RUN pip install -r requirements.txt

## Install the app code (change often)
#ADD . /app

WORKDIR /app
CMD ["/usr/local/bin/gunicorn", "chagrade.wsgi:application", "-w 2", "--timeout=300", "-b :8000"]

#####################################################################################################################


###########################################   .env    ###############################################################

# ----------------------------------------------------------------------------
# General
# ----------------------------------------------------------------------------

DOCKER_DEBUG=true

# ----------------------------------------------------------------------------
# Database
# ----------------------------------------------------------------------------

DB_HOST=postgres
DB_NAME=postgres
DB_USER=postgres
DB_PASSWORD=postgres
DB_PORT=5432

# ----------------------------------------------------------------------------
# Celery/Rabbit
# ----------------------------------------------------------------------------

RABBITMQ_DEFAULT_USER=guest
RABBITMQ_DEFAULT_PASS=guest
BROKER_URL=

# ----------------------------------------------------------------------------
# Chahub Auth
# ----------------------------------------------------------------------------
SOCIAL_AUTH_CHAHUB_BASE_URL=
SOCIAL_AUTH_CODALAB_KEY=
SOCIAL_AUTH_CODALAB_SECRET=


#####################################################################################################################


########################################### Databases from settings/base.py  ########################################

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': os.environ.get('DB_NAME', 'chagrade_website'),
        'USER': os.environ.get('DB_USER', 'postgres'),
        'PASSWORD': os.environ.get('DB_PASSWORD', ''),
        'HOST': os.environ.get('DB_HOST', 'postgres'),
        'PORT': os.environ.get('DB_PORT', '5432'),
    }
}
#####################################################################################################################