Django, use conditional settings module in wsgi.py

Question

I'm using a settings module instead of a single settings file for my django project. That means in my wsgi.py file I have something like this:

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings.prod") or os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings.dev")

depending upon my environment. I'd really like to be able to set a variable in a config file so that I can not have to go into this file and change it every time I push to prod.

Not a big deal you're saying? Well it's easy to forget and then boom my app is insecure because it's on dev settings. I would also use this config variable in other places in my app so I have one "global" flag that sets my app to production or dev settings.

why do you push your wsgi file every time?

yedpodtrzitko
– yedpodtrzitko

2014-06-12 17:28:08 +00:00
Commented Jun 12, 2014 at 17:28 — yedpodtrzitko
– yedpodtrzitko, Commented Jun 12, 2014 at 17:28

Aamir Rind · Accepted Answer · 2014-06-12 17:25:42Z

4

Well how about this approach, create three settings files:

settings.py (master)
settings_dev.py (override some settings for development server)
settings_prod.py (override some settings for production server)

At the end of settings.py file check if DEBUG=True then import settings_dev.py else settings_prod.py:

settings.py:

----
try:
    if DEBUG:
        from settings_dev import *
    else:
        from settings_prod import *
except ImportError:
    pass

Using this approach you will only need to set:

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")

Now don't say that what if I forgot to change the DEBUG value for specific servers. Then the other solution is that have two separate repositories add settings_prod.py in git ignore list for development repository and add settings_dev.py in git ignore list for production. Always set DEBUG=False in settings_prod.py and DEBUG=True in settings.py file, then at the end of settings.py file do this instead:

try:
    from settings_dev import *
except ImportError:
    try:
        from settings_prod import *
    except ImportError:
        pass

edited Jun 12, 2014 at 17:25

answered Jun 12, 2014 at 17:15

Aamir Rind

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1 Comment

Ulf Gjerdingen Over a year ago

cool solution:D it would be great though if i could have only one settings file with logic such as if ENV == 'prod': .use these creds. if ENV == "dev': then use these creds. how can this be set up?

mbschenkel · Accepted Answer · 2015-01-25 14:11:53Z

0

You could also use an environment variable (or the machine- or user-name) to distinguish different machines. Preferably you set it on the debug-one and never on production, so it can not be forgotten. Something along

if "yes" == os.environ.get("DJANGO_DEBUG_ENABLED"): 
    DEBUG = True
    # or 
    from settings_dev import *
else:
    DEBUG = False
    # or 
    from settings_prod import *

Alternatively you could put a file there which is not part of the repository and check for its presence / absence, or import the DEBUG from a settings_local.py.

edited Jan 25, 2015 at 14:11

answered Jun 12, 2014 at 18:26

mbschenkel

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