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Updates the configuration, changes default for dynamic paramters to None

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This commit is contained in:
Christian Mäder 2022-10-06 22:53:32 +02:00
parent a3680b22dd
commit 951c12132a
1 changed files with 131 additions and 71 deletions
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202
configuration/configuration.py
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@ -7,12 +7,17 @@
import re
from os import environ
from os.path import abspath, dirname, join
from typing import Any, Callable
# For reference see https://netbox.readthedocs.io/en/stable/configuration/
# Based on https://github.com/netbox-community/netbox/blob/master/netbox/netbox/configuration.example.py
# For reference see https://docs.netbox.dev/en/stable/configuration/
# Based on https://github.com/netbox-community/netbox/blob/develop/netbox/netbox/configuration_example.py
###
# NetBox-Docker Helper functions
###
# Read secret from file
def _read_secret(secret_name, default = None):
def _read_secret(secret_name: str, default: str | None = None) -> str | None:
try:
f = open('/run/secrets/' + secret_name, 'r', encoding='utf-8')
except EnvironmentError:
@ -21,6 +26,25 @@ def _read_secret(secret_name, default = None):
with f:
return f.readline().strip()
# If the `map_fn` isn't defined, then the value that is read from the environment (or the default value if not found) is returned.
# If the `map_fn` is defined, then `map_fn` is invoked and the value (that was read from the environment or the default value if not found)
# is passed to it as a parameter. The value returned from `map_fn` is then the return value of this function.
# The `map_fn` is not invoked, if the value (that was read from the environment or the default value if not found) is None.
def _environ_get_and_map(variable_name: str, default: str | None = None, map_fn: Callable[[str], Any | None] = None) -> Any | None:
env_value = environ.get(variable_name, default)
if env_value == None:
return env_value
if not map_fn:
return env_value
return map_fn(env_value)
_EQUALS_TRUE = lambda value : value.lower() == 'true'
_AS_INT = lambda value : int(value)
_SPLIT_ON_SPACE = lambda value : list(filter(None, value.split(' ')))
_BASE_DIR = dirname(dirname(abspath(__file__)))
#########################
@ -46,9 +70,9 @@ DATABASE = {
'PORT': environ.get('DB_PORT', ''), # Database port (leave blank for default)
'OPTIONS': {'sslmode': environ.get('DB_SSLMODE', 'prefer')},
# Database connection SSLMODE
'CONN_MAX_AGE': int(environ.get('DB_CONN_MAX_AGE', '300')),
'CONN_MAX_AGE': _environ_get_and_map('DB_CONN_MAX_AGE', '300', _AS_INT),
# Max database connection age
'DISABLE_SERVER_SIDE_CURSORS': environ.get('DB_DISABLE_SERVER_SIDE_CURSORS', 'False').lower() == 'true',
'DISABLE_SERVER_SIDE_CURSORS': _environ_get_and_map('DB_DISABLE_SERVER_SIDE_CURSORS', 'False', _EQUALS_TRUE),
# Disable the use of server-side cursors transaction pooling
}
@ -58,19 +82,19 @@ DATABASE = {
REDIS = {
'tasks': {
'HOST': environ.get('REDIS_HOST', 'localhost'),
'PORT': int(environ.get('REDIS_PORT', 6379)),
'PORT': _environ_get_and_map('REDIS_PORT', 6379, _AS_INT),
'PASSWORD': _read_secret('redis_password', environ.get('REDIS_PASSWORD', '')),
'DATABASE': int(environ.get('REDIS_DATABASE', 0)),
'SSL': environ.get('REDIS_SSL', 'False').lower() == 'true',
'INSECURE_SKIP_TLS_VERIFY': environ.get('REDIS_INSECURE_SKIP_TLS_VERIFY', 'False').lower() == 'true',
'DATABASE': _environ_get_and_map('REDIS_DATABASE', 0, _AS_INT),
'SSL': _environ_get_and_map('REDIS_SSL', 'False', _EQUALS_TRUE),
'INSECURE_SKIP_TLS_VERIFY': _environ_get_and_map('REDIS_INSECURE_SKIP_TLS_VERIFY', 'False', _EQUALS_TRUE),
},
'caching': {
'HOST': environ.get('REDIS_CACHE_HOST', environ.get('REDIS_HOST', 'localhost')),
'PORT': int(environ.get('REDIS_CACHE_PORT', environ.get('REDIS_PORT', 6379))),
'PORT': _environ_get_and_map('REDIS_CACHE_PORT', environ.get('REDIS_PORT', '6379'), _AS_INT),
'PASSWORD': _read_secret('redis_cache_password', environ.get('REDIS_CACHE_PASSWORD', environ.get('REDIS_PASSWORD', ''))),
'DATABASE': int(environ.get('REDIS_CACHE_DATABASE', 1)),
'SSL': environ.get('REDIS_CACHE_SSL', environ.get('REDIS_SSL', 'False')).lower() == 'true',
'INSECURE_SKIP_TLS_VERIFY': environ.get('REDIS_CACHE_INSECURE_SKIP_TLS_VERIFY', environ.get('REDIS_INSECURE_SKIP_TLS_VERIFY', 'False')).lower() == 'true',
'DATABASE': _environ_get_and_map('REDIS_CACHE_DATABASE', '1', _AS_INT),
'SSL': _environ_get_and_map('REDIS_CACHE_SSL', environ.get('REDIS_SSL', 'False'), _EQUALS_TRUE),
'INSECURE_SKIP_TLS_VERIFY': _environ_get_and_map('REDIS_CACHE_INSECURE_SKIP_TLS_VERIFY', environ.get('REDIS_INSECURE_SKIP_TLS_VERIFY', 'False'), _EQUALS_TRUE),
},
}
@ -87,91 +111,106 @@ SECRET_KEY = _read_secret('secret_key', environ.get('SECRET_KEY', ''))
# #
#########################
# Specify one or more name and email address tuples representing NetBox administrators. These people will be notified of
# application errors (assuming correct email settings are provided).
ADMINS = [
# ['John Doe', 'jdoe@example.com'],
]
# # Specify one or more name and email address tuples representing NetBox administrators. These people will be notified of
# # application errors (assuming correct email settings are provided).
# ADMINS = [
# # ['John Doe', 'jdoe@example.com'],
# ]
# URL schemes that are allowed within links in NetBox
ALLOWED_URL_SCHEMES = (
_DEFAULT_ALLOWED_URL_SCHEMES = (
'file', 'ftp', 'ftps', 'http', 'https', 'irc', 'mailto', 'sftp', 'ssh', 'tel', 'telnet', 'tftp', 'vnc', 'xmpp',
)
ALLOWED_URL_SCHEMES = _environ_get_and_map('ALLOWED_URL_SCHEMES', ' '.join(_DEFAULT_ALLOWED_URL_SCHEMES), _SPLIT_ON_SPACE)
# Optionally display a persistent banner at the top and/or bottom of every page. HTML is allowed. To display the same
# content in both banners, define BANNER_TOP and set BANNER_BOTTOM = BANNER_TOP.
BANNER_TOP = environ.get('BANNER_TOP', '')
BANNER_BOTTOM = environ.get('BANNER_BOTTOM', '')
BANNER_TOP = environ.get('BANNER_TOP', None)
BANNER_BOTTOM = environ.get('BANNER_BOTTOM', None)
# Text to include on the login page above the login form. HTML is allowed.
BANNER_LOGIN = environ.get('BANNER_LOGIN', '')
BANNER_LOGIN = environ.get('BANNER_LOGIN', None)
# Base URL path if accessing NetBox within a directory. For example, if installed at http://example.com/netbox/, set:
# BASE_PATH = 'netbox/'
BASE_PATH = environ.get('BASE_PATH', '')
# Maximum number of days to retain logged changes. Set to 0 to retain changes indefinitely. (Default: 90)
CHANGELOG_RETENTION = int(environ.get('CHANGELOG_RETENTION', 90))
CHANGELOG_RETENTION = _environ_get_and_map('CHANGELOG_RETENTION', None, _AS_INT)
# Maximum number of days to retain job results (scripts and reports). Set to 0 to retain job results in the database indefinitely. (Default: 90)
JOBRESULT_RETENTION = int(environ.get('JOBRESULT_RETENTION', 90))
JOBRESULT_RETENTION = _environ_get_and_map('CHANGELOG_RETENTION', None, _AS_INT)
# API Cross-Origin Resource Sharing (CORS) settings. If CORS_ORIGIN_ALLOW_ALL is set to True, all origins will be
# allowed. Otherwise, define a list of allowed origins using either CORS_ORIGIN_WHITELIST or
# CORS_ORIGIN_REGEX_WHITELIST. For more information, see https://github.com/ottoyiu/django-cors-headers
CORS_ORIGIN_ALLOW_ALL = environ.get('CORS_ORIGIN_ALLOW_ALL', 'False').lower() == 'true'
CORS_ORIGIN_WHITELIST = list(filter(None, environ.get('CORS_ORIGIN_WHITELIST', 'https://localhost').split(' ')))
CORS_ORIGIN_REGEX_WHITELIST = [re.compile(r) for r in list(filter(None, environ.get('CORS_ORIGIN_REGEX_WHITELIST', '').split(' ')))]
# Cross-Site-Request-Forgery-Attack settings. If Netbox is sitting behind a reverse proxy, you might need to set the CSRF_TRUSTED_ORIGINS flag.
# Django 4.0 requires to specify the URL Scheme in this setting. An example environment variable could be specified like:
# CSRF_TRUSTED_ORIGINS=https://demo.netbox.dev http://demo.netbox.dev
CSRF_TRUSTED_ORIGINS = list(filter(None, environ.get('CSRF_TRUSTED_ORIGINS', '').split(' ')))
CORS_ORIGIN_ALLOW_ALL = _environ_get_and_map('CORS_ORIGIN_ALLOW_ALL', 'False', _EQUALS_TRUE)
CORS_ORIGIN_WHITELIST = _environ_get_and_map('CORS_ORIGIN_WHITELIST', 'https://localhost', _SPLIT_ON_SPACE)
CORS_ORIGIN_REGEX_WHITELIST = [re.compile(r) for r in _environ_get_and_map('CORS_ORIGIN_REGEX_WHITELIST', '', _SPLIT_ON_SPACE)]
# Set to True to enable server debugging. WARNING: Debugging introduces a substantial performance penalty and may reveal
# sensitive information about your installation. Only enable debugging while performing testing. Never enable debugging
# on a production system.
DEBUG = environ.get('DEBUG', 'False').lower() == 'true'
# sensitive information about your installation. Only enable debugging while performing testing.
# Never enable debugging on a production system.
DEBUG = _environ_get_and_map('DEBUG', 'False', _EQUALS_TRUE)
# This parameter serves as a safeguard to prevent some potentially dangerous behavior,
# such as generating new database schema migrations.
# Set this to True only if you are actively developing the NetBox code base.
DEVELOPER = _environ_get_and_map('DEBUG', 'False', _EQUALS_TRUE)
# Email settings
EMAIL = {
'SERVER': environ.get('EMAIL_SERVER', 'localhost'),
'PORT': int(environ.get('EMAIL_PORT', 25)),
'PORT': _environ_get_and_map('EMAIL_PORT', 25, _AS_INT),
'USERNAME': environ.get('EMAIL_USERNAME', ''),
'PASSWORD': _read_secret('email_password', environ.get('EMAIL_PASSWORD', '')),
'USE_SSL': environ.get('EMAIL_USE_SSL', 'False').lower() == 'true',
'USE_TLS': environ.get('EMAIL_USE_TLS', 'False').lower() == 'true',
'USE_SSL': _environ_get_and_map('EMAIL_USE_SSL', 'False', _EQUALS_TRUE),
'USE_TLS': _environ_get_and_map('EMAIL_USE_TLS', 'False', _EQUALS_TRUE),
'SSL_CERTFILE': environ.get('EMAIL_SSL_CERTFILE', ''),
'SSL_KEYFILE': environ.get('EMAIL_SSL_KEYFILE', ''),
'TIMEOUT': int(environ.get('EMAIL_TIMEOUT', 10)), # seconds
'TIMEOUT': _environ_get_and_map('EMAIL_TIMEOUT', 10, _AS_INT), # seconds
'FROM_EMAIL': environ.get('EMAIL_FROM', ''),
}
# Enforcement of unique IP space can be toggled on a per-VRF basis. To enforce unique IP space within the global table
# (all prefixes and IP addresses not assigned to a VRF), set ENFORCE_GLOBAL_UNIQUE to True.
ENFORCE_GLOBAL_UNIQUE = environ.get('ENFORCE_GLOBAL_UNIQUE', 'False').lower() == 'true'
ENFORCE_GLOBAL_UNIQUE = _environ_get_and_map('ENFORCE_GLOBAL_UNIQUE', None, _EQUALS_TRUE)
# Exempt certain models from the enforcement of view permissions. Models listed here will be viewable by all users and
# by anonymous users. List models in the form `<app>.<model>`. Add '*' to this list to exempt all models.
EXEMPT_VIEW_PERMISSIONS = list(filter(None, environ.get('EXEMPT_VIEW_PERMISSIONS', '').split(' ')))
EXEMPT_VIEW_PERMISSIONS = _environ_get_and_map('EXEMPT_VIEW_PERMISSIONS', '', _SPLIT_ON_SPACE)
# HTTP proxies NetBox should use when sending outbound HTTP requests (e.g. for webhooks).
# HTTP_PROXIES = {
# 'http': 'http://10.10.1.10:3128',
# 'https': 'http://10.10.1.10:1080',
# }
# IP addresses recognized as internal to the system. The debugging toolbar will be available only to clients accessing
# NetBox from an internal IP.
INTERNAL_IPS = _environ_get_and_map('INTERNAL_IPS', '127.0.0.1 ::1', _SPLIT_ON_SPACE)
# Enable GraphQL API.
GRAPHQL_ENABLED = environ.get('GRAPHQL_ENABLED', 'True').lower() == 'true'
GRAPHQL_ENABLED = _environ_get_and_map('GRAPHQL_ENABLED', None, _EQUALS_TRUE)
# Enable custom logging. Please see the Django documentation for detailed guidance on configuring custom logs:
# https://docs.djangoproject.com/en/stable/topics/logging/
LOGGING = {}
# # Enable custom logging. Please see the Django documentation for detailed guidance on configuring custom logs:
# # https://docs.djangoproject.com/en/stable/topics/logging/
# LOGGING = {}
# Automatically reset the lifetime of a valid session upon each authenticated request. Enables users to remain
# authenticated to NetBox indefinitely.
LOGIN_PERSISTENCE = _environ_get_and_map('LOGIN_PERSISTENCE', 'False', _EQUALS_TRUE)
# Setting this to True will permit only authenticated users to access any part of NetBox. By default, anonymous users
# are permitted to access most data in NetBox (excluding secrets) but not make any changes.
LOGIN_REQUIRED = environ.get('LOGIN_REQUIRED', 'False').lower() == 'true'
LOGIN_REQUIRED = _environ_get_and_map('LOGIN_REQUIRED', 'False', _EQUALS_TRUE)
# The length of time (in seconds) for which a user will remain logged into the web UI before being prompted to
# re-authenticate. (Default: 1209600 [14 days])
LOGIN_TIMEOUT = int(environ.get('LOGIN_TIMEOUT', 1209600))
LOGIN_TIMEOUT = _environ_get_and_map('LOGIN_TIMEOUT', 1209600, _AS_INT)
# Setting this to True will display a "maintenance mode" banner at the top of every page.
MAINTENANCE_MODE = environ.get('MAINTENANCE_MODE', 'False').lower() == 'true'
MAINTENANCE_MODE = _environ_get_and_map('MAINTENANCE_MODE', None, _EQUALS_TRUE)
# Maps provider
MAPS_URL = environ.get('MAPS_URL', None)
@ -179,68 +218,89 @@ MAPS_URL = environ.get('MAPS_URL', None)
# An API consumer can request an arbitrary number of objects =by appending the "limit" parameter to the URL (e.g.
# "?limit=1000"). This setting defines the maximum limit. Setting it to 0 or None will allow an API consumer to request
# all objects by specifying "?limit=0".
MAX_PAGE_SIZE = int(environ.get('MAX_PAGE_SIZE', 1000))
MAX_PAGE_SIZE = _environ_get_and_map('MAX_PAGE_SIZE', None, _AS_INT)
# The file path where uploaded media such as image attachments are stored. A trailing slash is not needed. Note that
# the default value of this setting is derived from the installed location.
MEDIA_ROOT = environ.get('MEDIA_ROOT', join(_BASE_DIR, 'media'))
# Expose Prometheus monitoring metrics at the HTTP endpoint '/metrics'
METRICS_ENABLED = environ.get('METRICS_ENABLED', 'False').lower() == 'true'
METRICS_ENABLED = _environ_get_and_map('METRICS_ENABLED', 'False', _EQUALS_TRUE)
# Credentials that NetBox will uses to authenticate to devices when connecting via NAPALM.
NAPALM_USERNAME = environ.get('NAPALM_USERNAME', '')
NAPALM_PASSWORD = _read_secret('napalm_password', environ.get('NAPALM_PASSWORD', ''))
NAPALM_USERNAME = environ.get('NAPALM_USERNAME', None)
NAPALM_PASSWORD = _read_secret('napalm_password', environ.get('NAPALM_PASSWORD', None))
# NAPALM timeout (in seconds). (Default: 30)
NAPALM_TIMEOUT = int(environ.get('NAPALM_TIMEOUT', 30))
NAPALM_TIMEOUT = _environ_get_and_map('NAPALM_TIMEOUT', None, _AS_INT)
# NAPALM optional arguments (see http://napalm.readthedocs.io/en/latest/support/#optional-arguments). Arguments must
# be provided as a dictionary.
NAPALM_ARGS = {}
# # NAPALM optional arguments (see http://napalm.readthedocs.io/en/latest/support/#optional-arguments). Arguments must
# # be provided as a dictionary.
# NAPALM_ARGS = None
# Determine how many objects to display per page within a list. (Default: 50)
PAGINATE_COUNT = int(environ.get('PAGINATE_COUNT', 50))
PAGINATE_COUNT = _environ_get_and_map('PAGINATE_COUNT', None, _AS_INT)
# Enable installed plugins. Add the name of each plugin to the list.
PLUGINS = []
# # Enable installed plugins. Add the name of each plugin to the list.
# PLUGINS = []
# Plugins configuration settings. These settings are used by various plugins that the user may have installed.
# Each key in the dictionary is the name of an installed plugin and its value is a dictionary of settings.
PLUGINS_CONFIG = {
}
# # Plugins configuration settings. These settings are used by various plugins that the user may have installed.
# # Each key in the dictionary is the name of an installed plugin and its value is a dictionary of settings.
# PLUGINS_CONFIG = {
# }
# When determining the primary IP address for a device, IPv6 is preferred over IPv4 by default. Set this to True to
# prefer IPv4 instead.
PREFER_IPV4 = environ.get('PREFER_IPV4', 'False').lower() == 'true'
PREFER_IPV4 = _environ_get_and_map('PREFER_IPV4', None, _EQUALS_TRUE)
# The default value for the amperage field when creating new power feeds.
POWERFEED_DEFAULT_AMPERAGE = _environ_get_and_map('POWERFEED_DEFAULT_AMPERAGE', None, _AS_INT)
# The default value (percentage) for the max_utilization field when creating new power feeds.
POWERFEED_DEFAULT_MAX_UTILIZATION = _environ_get_and_map('POWERFEED_DEFAULT_MAX_UTILIZATION', None, _AS_INT)
# The default value for the voltage field when creating new power feeds.
POWERFEED_DEFAULT_VOLTAGE = _environ_get_and_map('POWERFEED_DEFAULT_VOLTAGE', None, _AS_INT)
# Rack elevation size defaults, in pixels. For best results, the ratio of width to height should be roughly 10:1.
RACK_ELEVATION_DEFAULT_UNIT_HEIGHT = int(environ.get('RACK_ELEVATION_DEFAULT_UNIT_HEIGHT', 22))
RACK_ELEVATION_DEFAULT_UNIT_WIDTH = int(environ.get('RACK_ELEVATION_DEFAULT_UNIT_WIDTH', 220))
RACK_ELEVATION_DEFAULT_UNIT_HEIGHT = _environ_get_and_map('RACK_ELEVATION_DEFAULT_UNIT_HEIGHT', None, _AS_INT)
RACK_ELEVATION_DEFAULT_UNIT_WIDTH = _environ_get_and_map('RACK_ELEVATION_DEFAULT_UNIT_WIDTH', None, _AS_INT)
# Remote authentication support
REMOTE_AUTH_ENABLED = environ.get('REMOTE_AUTH_ENABLED', 'False').lower() == 'true'
REMOTE_AUTH_ENABLED = _environ_get_and_map('REMOTE_AUTH_ENABLED', 'False', _EQUALS_TRUE)
REMOTE_AUTH_BACKEND = environ.get('REMOTE_AUTH_BACKEND', 'netbox.authentication.RemoteUserBackend')
REMOTE_AUTH_HEADER = environ.get('REMOTE_AUTH_HEADER', 'HTTP_REMOTE_USER')
REMOTE_AUTH_AUTO_CREATE_USER = environ.get('REMOTE_AUTH_AUTO_CREATE_USER', 'True').lower() == 'true'
REMOTE_AUTH_DEFAULT_GROUPS = list(filter(None, environ.get('REMOTE_AUTH_DEFAULT_GROUPS', '').split(' ')))
REMOTE_AUTH_AUTO_CREATE_USER = _environ_get_and_map('REMOTE_AUTH_AUTO_CREATE_USER', 'True', _EQUALS_TRUE)
REMOTE_AUTH_DEFAULT_GROUPS = _environ_get_and_map('REMOTE_AUTH_DEFAULT_GROUPS', '', _SPLIT_ON_SPACE)
# REMOTE_AUTH_DEFAULT_PERMISSIONS = {}
# This repository is used to check whether there is a new release of NetBox available. Set to None to disable the
# version check or use the URL below to check for release in the official NetBox repository.
# https://api.github.com/repos/netbox-community/netbox/releases
RELEASE_CHECK_URL = environ.get('RELEASE_CHECK_URL', None)
# RELEASE_CHECK_URL = 'https://api.github.com/repos/netbox-community/netbox/releases'
# The file path where custom reports will be stored. A trailing slash is not needed. Note that the default value of
# this setting is derived from the installed location.
REPORTS_ROOT = environ.get('REPORTS_ROOT', '/etc/netbox/reports')
# Maximum execution time for background tasks, in seconds.
RQ_DEFAULT_TIMEOUT = int(environ.get('RQ_DEFAULT_TIMEOUT', 300))
RQ_DEFAULT_TIMEOUT = _environ_get_and_map('RQ_DEFAULT_TIMEOUT', 300, _AS_INT)
# The file path where custom scripts will be stored. A trailing slash is not needed. Note that the default value of
# this setting is derived from the installed location.
SCRIPTS_ROOT = environ.get('SCRIPTS_ROOT', '/etc/netbox/scripts')
# The name to use for the csrf token cookie.
CSRF_COOKIE_NAME = environ.get('CSRF_COOKIE_NAME', 'csrftoken')
# Cross-Site-Request-Forgery-Attack settings. If Netbox is sitting behind a reverse proxy, you might need to set the CSRF_TRUSTED_ORIGINS flag.
# Django 4.0 requires to specify the URL Scheme in this setting. An example environment variable could be specified like:
# CSRF_TRUSTED_ORIGINS=https://demo.netbox.dev http://demo.netbox.dev
CSRF_TRUSTED_ORIGINS = _environ_get_and_map('CSRF_TRUSTED_ORIGINS', '', _SPLIT_ON_SPACE)
# The name to use for the session cookie.
SESSION_COOKIE_NAME = environ.get('SESSION_COOKIE_NAME', 'sessionid')
# By default, NetBox will store session data in the database. Alternatively, a file path can be specified here to use
# local file storage instead. (This can be useful for enabling authentication on a standby instance with read-only
# database access.) Note that the user as which NetBox runs must have read and write permissions to this path.