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docker_config.py
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docker_config.py
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# import everything from environment variables
import os
import sys
import json
# Defaults for Docker image
BIND_ADDRESS = '0.0.0.0'
PORT = 80
SERVER_EXTERNAL_SSL = True
SQLALCHEMY_DATABASE_URI = 'sqlite:////data/powerdns-admin.db'
SESSION_COOKIE_SAMESITE = 'Lax'
CSRF_COOKIE_HTTPONLY = True
SESSION_TYPE = 'sqlalchemy'
legal_envvars = (
'SECRET_KEY',
'OIDC_OAUTH_ENABLED',
'OIDC_OAUTH_KEY',
'OIDC_OAUTH_SECRET',
'OIDC_OAUTH_API_URL',
'OIDC_OAUTH_TOKEN_URL',
'OIDC_OAUTH_AUTHORIZE_URL',
'OIDC_OAUTH_METADATA_URL',
'OIDC_OAUTH_LOGOUT_URL',
'OIDC_OAUTH_SCOPE',
'OIDC_OAUTH_USERNAME',
'OIDC_OAUTH_FIRSTNAME',
'OIDC_OAUTH_LAST_NAME',
'OIDC_OAUTH_EMAIL',
'BIND_ADDRESS',
'PORT',
'SERVER_EXTERNAL_SSL',
'LOG_LEVEL',
'SALT',
'SQLALCHEMY_TRACK_MODIFICATIONS',
'SQLALCHEMY_DATABASE_URI',
'SQLALCHEMY_ENGINE_OPTIONS',
'MAIL_SERVER',
'MAIL_PORT',
'MAIL_DEBUG',
'MAIL_USE_TLS',
'MAIL_USE_SSL',
'MAIL_USERNAME',
'MAIL_PASSWORD',
'MAIL_DEFAULT_SENDER',
'SAML_ENABLED',
'SAML_DEBUG',
'SAML_PATH',
'SAML_METADATA_URL',
'SAML_METADATA_CACHE_LIFETIME',
'SAML_IDP_SSO_BINDING',
'SAML_IDP_ENTITY_ID',
'SAML_NAMEID_FORMAT',
'SAML_ATTRIBUTE_EMAIL',
'SAML_ATTRIBUTE_GIVENNAME',
'SAML_ATTRIBUTE_SURNAME',
'SAML_ATTRIBUTE_NAME',
'SAML_ATTRIBUTE_USERNAME',
'SAML_ATTRIBUTE_ADMIN',
'SAML_ATTRIBUTE_GROUP',
'SAML_GROUP_ADMIN_NAME',
'SAML_GROUP_TO_ACCOUNT_MAPPING',
'SAML_ATTRIBUTE_ACCOUNT',
'SAML_SP_ENTITY_ID',
'SAML_SP_CONTACT_NAME',
'SAML_SP_CONTACT_MAIL',
'SAML_SIGN_REQUEST',
'SAML_WANT_MESSAGE_SIGNED',
'SAML_LOGOUT',
'SAML_LOGOUT_URL',
'SAML_ASSERTION_ENCRYPTED',
'REMOTE_USER_LOGOUT_URL',
'REMOTE_USER_COOKIES',
'SIGNUP_ENABLED',
'LOCAL_DB_ENABLED',
'LDAP_ENABLED',
'SAML_CERT',
'SAML_KEY',
'SESSION_TYPE',
'SESSION_COOKIE_SECURE',
'CSRF_COOKIE_SECURE',
'CAPTCHA_ENABLE',
)
legal_envvars_int = ('PORT', 'MAIL_PORT', 'SAML_METADATA_CACHE_LIFETIME')
legal_envvars_bool = (
'SQLALCHEMY_TRACK_MODIFICATIONS',
'HSTS_ENABLED',
'MAIL_DEBUG',
'MAIL_USE_TLS',
'MAIL_USE_SSL',
'OIDC_OAUTH_ENABLED',
'SAML_ENABLED',
'SAML_DEBUG',
'SAML_SIGN_REQUEST',
'SAML_WANT_MESSAGE_SIGNED',
'SAML_LOGOUT',
'SAML_ASSERTION_ENCRYPTED',
'REMOTE_USER_ENABLED',
'SIGNUP_ENABLED',
'LOCAL_DB_ENABLED',
'LDAP_ENABLED',
'SESSION_COOKIE_SECURE',
'CSRF_COOKIE_SECURE',
'CAPTCHA_ENABLE',
'SERVER_EXTERNAL_SSL',
)
legal_envvars_dict = (
'SQLALCHEMY_ENGINE_OPTIONS',
)
def str2bool(v):
return v.lower() in ("true", "yes", "1")
def dictfromstr(v, ret):
try:
return json.loads(ret)
except Exception as e:
print('Cannot parse json {} for variable {}'.format(ret, v))
print(e)
raise ValueError
for v in legal_envvars:
ret = None
# _FILE suffix will allow to read value from file, useful for Docker containers.
# secrets feature
if v + '_FILE' in os.environ:
if v in os.environ:
raise AttributeError(
"Both {} and {} are set but are exclusive.".format(
v, v + '_FILE'))
with open(os.environ[v + '_FILE']) as f:
ret = f.read()
f.close()
elif v in os.environ:
ret = os.environ[v]
if ret is not None:
if v in legal_envvars_bool:
ret = str2bool(ret)
if v in legal_envvars_int:
ret = int(ret)
if v in legal_envvars_dict:
ret = dictfromstr(v, ret)
sys.modules[__name__].__dict__[v] = ret