django-rest-api/{{ cookiecutter.project_slug }}/settings/cloud_production.py

163 lines
5.3 KiB
Python

"""
Django settings for Google Cloud Run production deployment.
This settings file:
- Reads secrets from Google Secret Manager
- Uses WhiteNoise for static files
- Uses Google Cloud Storage for media files
- Configures CORS for API access
Required environment variables:
- DJANGO_SETTINGS_MODULE={{ cookiecutter.project_slug }}.settings.cloud_production
- GCP_PROJECT_ID (optional, auto-detected on Cloud Run)
Required secrets in Secret Manager (application_settings):
- DATABASE_URL
- SECRET_KEY
- GS_BUCKET_NAME
- ALLOWED_HOSTS (comma-separated)
- CORS_ALLOWED_ORIGINS (comma-separated, optional)
"""
import io
import os
from google.cloud import secretmanager
from .base import *
# =============================================================================
# Load secrets from Google Secret Manager
# =============================================================================
def get_secret(secret_id: str, project_id: str = None) -> str:
"""Fetch a secret from Google Secret Manager."""
if project_id is None:
project_id = os.environ.get("GCP_PROJECT_ID") or os.environ.get("GOOGLE_CLOUD_PROJECT")
client = secretmanager.SecretManagerServiceClient()
name = f"projects/{project_id}/secrets/{secret_id}/versions/latest"
response = client.access_secret_version(request={"name": name})
return response.payload.data.decode("UTF-8")
# Load application settings from Secret Manager
try:
import environ
env = environ.Env()
secret_payload = get_secret("application_settings")
env.read_env(io.StringIO(secret_payload))
except Exception as e:
import logging
logging.warning(f"Could not load secrets from Secret Manager: {e}")
env = environ.Env()
# =============================================================================
# Core Settings
# =============================================================================
DEBUG = env.bool("DEBUG", default=False)
SECRET_KEY = env("SECRET_KEY")
# Parse ALLOWED_HOSTS from comma-separated string
ALLOWED_HOSTS = [h.strip() for h in env("ALLOWED_HOSTS", default="").split(",") if h.strip()]
# =============================================================================
# Database - Cloud SQL via Unix socket
# =============================================================================
DATABASES = {
"default": env.db("DATABASE_URL")
}
# =============================================================================
# Static Files - WhiteNoise
# =============================================================================
MIDDLEWARE.insert(1, "whitenoise.middleware.WhiteNoiseMiddleware")
STATIC_URL = "/static/"
STATIC_ROOT = BASE_DIR / "staticfiles"
STORAGES = {
"default": {
"BACKEND": "storages.backends.gcloud.GoogleCloudStorage",
"OPTIONS": {
"bucket_name": env("GS_BUCKET_NAME"),
},
},
"staticfiles": {
"BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
},
}
# =============================================================================
# Media Files - Google Cloud Storage
# =============================================================================
GS_BUCKET_NAME = env("GS_BUCKET_NAME")
GS_DEFAULT_ACL = "publicRead"
GS_QUERYSTRING_AUTH = False
# =============================================================================
# CORS Configuration
# =============================================================================
CORS_ALLOWED_ORIGINS = [
o.strip() for o in env("CORS_ALLOWED_ORIGINS", default="").split(",") if o.strip()
]
CORS_ALLOW_CREDENTIALS = True
if CORS_ALLOWED_ORIGINS:
INSTALLED_APPS = ["corsheaders"] + list(INSTALLED_APPS)
MIDDLEWARE.insert(0, "corsheaders.middleware.CorsMiddleware")
# =============================================================================
# Security Settings
# =============================================================================
SECURE_SSL_REDIRECT = True
SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True
# =============================================================================
# Logging
# =============================================================================
LOGGING = {
"version": 1,
"disable_existing_loggers": False,
"formatters": {
"json": {
"format": '{"time": "%(asctime)s", "level": "%(levelname)s", "name": "%(name)s", "message": "%(message)s"}',
},
},
"handlers": {
"console": {
"class": "logging.StreamHandler",
"formatter": "json",
},
},
"root": {
"handlers": ["console"],
"level": env("LOG_LEVEL", default="INFO"),
},
"loggers": {
"django": {
"handlers": ["console"],
"level": env("LOG_LEVEL", default="INFO"),
"propagate": False,
},
},
}
# =============================================================================
# Cloud Tasks Configuration (Production)
# =============================================================================
# Disable eager mode - use real Cloud Tasks infrastructure
DJANGO_CLOUD_TASKS['eager'] = False
DJANGO_CLOUD_TASKS['project_id'] = os.environ.get("GCP_PROJECT_ID") or os.environ.get("GOOGLE_CLOUD_PROJECT")
DJANGO_CLOUD_TASKS['location'] = env("GCP_LOCATION", default="{{ cookiecutter.gcp_region }}")