Package: django-etcd-settings
FeaturesThis application allows you to extend the Django settings as configured in thesettings.pyfile with:Environment dependent valuesValues in different config sets, identified by name, which can be selected on
a ‘per request’ basis using theX-DYNAMIC-SETTINGSHTTP headerBoth the added configuration values and config sets would live at ETCD, which
will be continuously monitored by this library in order to transparently update
your app settings upon changes.BackendsETCD 2.2.1Installation$pipinstalldjango-etcd-settingsUsageThis Django application uses the following configuration keys:DJES_ETCD_DETAILS: a dict with ‘host’, ‘port’, ‘protocol’, ‘prefix’,‘long_polling_timeout’ and ‘long_polling_safety_delay’ (both in seconds).
‘prefix’ is a string to be used as base path for all configuration
managed by this app.
i.e. ‘/config/api’ will result in ‘/config/api/<ENV>’ and
‘/config/api/extensions/’ to be used for environment defaults and
config_sets respectively
Timeouts default to 50 and 5 seconds respectively.
IfDJES_ETCD_SETTINGSis None, this app will start with no errors and
etcd_settings.settings will resolve to django.conf.settings plus your
DJES_DEV_PARAMS overwrites
i.e.ETCD_DETAILS=dict(host='localhost',port=4000,protocol='http',long_polling_timout=50,long_polling_safety_delay=5)DJES_DEV_PARAMS: A module with local overwrites, generally used fordevelopment. The overwrites must be capitalized module attributes.
These overwrites will have preference over development settings on ETCD,
but not over configset overwrites indicated by theX-DYNAMIC-SETTINGSHTTP headerDJES_ENV: A string with the name of the environment in which the code isrunning. This will be used for accessing the env_defaults in
ETCD in a directory with that name
i.e. ‘test’, ‘staging’, ‘prod’…DJES_REQUEST_GETTER: path to a function which accesses the HTTP requestobject being handled. Ensuring access to this value can be implemented
with, for instance, middleware. This settings is only used to allow
config overwrites on runtime based on predifined config_sets. In case you
don’t want to use this functionality, just set this setting to None
i.e. ‘middleware.thread_local.get_current_request’DJES_WSGI_FILE: path to thewsgi.pyfile for the djangoproject. If not None, the monitoring of environment configuration will
perform atouchof the file everytime the env_defaults are updated, so
that all processes consuming settings fromdjango.confcan consume the
latest settings available as well
The path can be absolute or relative to the ‘manage.py’ file.
i.e. /project/src/wsgi.py, wsgi.pyThen, addetcd_settingsto the list ofINSTALLED_APPSbefore any other that
requires dynamic settings.From your code, just dofrom etcd_settings import settingsinstead offrom django.conf import settings.In case you want to useetcd_settingsto modify some values in your standard
Django settings.py file (i.e. Database config), you can use the following
snippet in your settings file, as high as possible in the file and immediately
under theDJES_*settings definition:importetcd_settings.loaderextra_settings=etcd_settings.loader.get_overwrites(DJES_ENV,DJES_DEV_PARAMS,DJES_ETCD_DETAILS)locals().update(extra_settings)