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settings.py
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settings.py
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# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import io
import os
from urllib.parse import urlparse
import environ
from google.cloud import secretmanager
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# [START gaestd_py_django_secret_config]
env = environ.Env(DEBUG=(bool, False))
env_file = os.path.join(BASE_DIR, ".env")
if os.path.isfile(env_file):
# Use a local secret file, if provided
env.read_env(env_file)
# [START_EXCLUDE]
elif os.getenv("TRAMPOLINE_CI", None):
# Create local settings if running with CI, for unit testing
placeholder = (
f"SECRET_KEY=a\n"
f"DATABASE_URL=sqlite://{os.path.join(BASE_DIR, 'db.sqlite3')}"
)
env.read_env(io.StringIO(placeholder))
# [END_EXCLUDE]
elif os.environ.get("GOOGLE_CLOUD_PROJECT", None):
# Pull secrets from Secret Manager
project_id = os.environ.get("GOOGLE_CLOUD_PROJECT")
client = secretmanager.SecretManagerServiceClient()
settings_name = os.environ.get("SETTINGS_NAME", "django_settings")
name = f"projects/{project_id}/secrets/{settings_name}/versions/latest"
payload = client.access_secret_version(name=name).payload.data.decode("UTF-8")
env.read_env(io.StringIO(payload))
else:
raise Exception("No local .env or GOOGLE_CLOUD_PROJECT detected. No secrets found.")
# [END gaestd_py_django_secret_config]
SECRET_KEY = env("SECRET_KEY")
# SECURITY WARNING: don't run with debug turned on in production!
# Change this to "False" when you are ready for production
DEBUG = env("DEBUG")
# [START gaestd_py_django_csrf]
# SECURITY WARNING: It's recommended that you use this when
# running in production. The URL will be known once you first deploy
# to App Engine. This code takes the URL and converts it to both these settings formats.
APPENGINE_URL = env("APPENGINE_URL", default=None)
if APPENGINE_URL:
# Ensure a scheme is present in the URL before it's processed.
if not urlparse(APPENGINE_URL).scheme:
APPENGINE_URL = f"https://{APPENGINE_URL}"
ALLOWED_HOSTS = [urlparse(APPENGINE_URL).netloc]
CSRF_TRUSTED_ORIGINS = [APPENGINE_URL]
SECURE_SSL_REDIRECT = True
else:
ALLOWED_HOSTS = ["*"]
# [END gaestd_py_django_csrf]
# Application definition
INSTALLED_APPS = [
"polls.apps.PollsConfig",
"django.contrib.admin",
"django.contrib.auth",
"django.contrib.contenttypes",
"django.contrib.sessions",
"django.contrib.messages",
"django.contrib.staticfiles",
]
MIDDLEWARE = [
"django.middleware.security.SecurityMiddleware",
"django.contrib.sessions.middleware.SessionMiddleware",
"django.middleware.common.CommonMiddleware",
"django.middleware.csrf.CsrfViewMiddleware",
"django.contrib.auth.middleware.AuthenticationMiddleware",
"django.contrib.messages.middleware.MessageMiddleware",
"django.middleware.clickjacking.XFrameOptionsMiddleware",
]
ROOT_URLCONF = "mysite.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 = "mysite.wsgi.application"
# Database
# [START gaestd_py_django_database_config]
# Use django-environ to parse the connection string
DATABASES = {"default": env.db()}
# If the flag as been set, configure to use proxy
if os.getenv("USE_CLOUD_SQL_AUTH_PROXY", None):
DATABASES["default"]["HOST"] = "127.0.0.1"
DATABASES["default"]["PORT"] = 5432
# [END gaestd_py_django_database_config]
# Use a in-memory sqlite3 database when testing in CI systems
# TODO(glasnt) CHECK IF THIS IS REQUIRED because we're setting a val above
if os.getenv("TRAMPOLINE_CI", None):
DATABASES = {
"default": {
"ENGINE": "django.db.backends.sqlite3",
"NAME": os.path.join(BASE_DIR, "db.sqlite3"),
}
}
# Password validation
AUTH_PASSWORD_VALIDATORS = [
{
"NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator", # noqa: 501
},
{
"NAME": "django.contrib.auth.password_validation.MinimumLengthValidator", # noqa: 501
},
{
"NAME": "django.contrib.auth.password_validation.CommonPasswordValidator", # noqa: 501
},
{
"NAME": "django.contrib.auth.password_validation.NumericPasswordValidator", # noqa: 501
},
]
# Internationalization
LANGUAGE_CODE = "en-us"
TIME_ZONE = "UTC"
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
STATIC_ROOT = "static"
STATIC_URL = "/static/"
STATICFILES_DIRS = []
# Default primary key field type
# https://docs.djangoproject.com/en/stable/ref/settings/#default-auto-field
DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"