bullish/backend/backend/settings.py

"""
Django settings for backend project.

Generated by 'django-admin startproject' using Django 3.1.6.

For more information on this file, see
https://docs.djangoproject.com/en/3.1/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.1/ref/settings/
"""

import os
from pathlib import Path

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.1/howto/deployment/checklist/

# TODO: remove this key
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get('SECRET_KEY')

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = os.environ.get('DEBUG')
DEBUG = False if not DEBUG or DEBUG.lower() == 'false' else True

ALLOWED_HOSTS = os.environ.get('ALLOWED_HOSTS')
if ALLOWED_HOSTS:
    ALLOWED_HOSTS = ALLOWED_HOSTS.split(',')


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'corsheaders',
    'django_rq',
    'app',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'backend.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'backend.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.1/ref/settings/#databases

# DATABASES = {
#     'default': {
#         'ENGINE': 'django.db.backends.sqlite3',
#         'NAME': BASE_DIR / 'db.sqlite3',
#     }
# }
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': os.environ.get("POSTGRES_DB"),
        'USER': os.environ.get("POSTGRES_USER"),
        'PASSWORD': os.environ.get("POSTGRES_PASSWORD"),
        'HOST': os.environ.get("POSTGRES_SERVER"),
        'PORT': os.environ.get("POSTGRES_PORT"),
    }
}

CACHES = {
    'default': {
        'BACKEND': 'django_redis.cache.RedisCache',
        'LOCATION': f'redis://{os.environ.get("REDIS_HOST")}:{os.environ.get("REDIS_PORT")}/{os.environ.get("REDIS_CACHE_DB")}',
        'OPTIONS': {
            'CLIENT_CLASS': 'django_redis.client.DefaultClient',
            "REDIS_CLIENT_CLASS": "redis.client.StrictRedis",
            "REDIS_CLIENT_KWARGS": {"decode_responses": True},
            "SERIALIZER": "app.redis.JSONSerializer",
        },
    },
}

# Password validation
# https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.1/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# TODO: fix hardcoded cross allowed origins
CORS_ALLOWED_ORIGINS = os.environ.get('CORS_ALLOWED_ORIGINS')
if CORS_ALLOWED_ORIGINS:
    CORS_ALLOWED_ORIGINS = CORS_ALLOWED_ORIGINS.split(',')

RQ_QUEUES = {
    'default': {
        'HOST': os.environ.get("REDIS_HOST"),
        'PORT': os.environ.get("REDIS_PORT"),
        'DB': os.environ.get("REDIS_QUEUE_DB"),
        'DEFAULT_TIMEOUT': 360,
    },
}

SESSION_ENGINE = "django.contrib.sessions.backends.cache"
SESSION_CACHE_ALIAS = "default"
CACHE_TTL = 60 * 5
DJANGO_REDIS_CONNECTION_FACTORY = "app.redis.ConnectionFactory"

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'console': {
            'class': 'logging.StreamHandler',
        },
    },
    'root': {
        'handlers': ['console'],
        'level': 'INFO',
    },
}


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.1/howto/static-files/

STATIC_URL = '/static/'