I know this issue has been discussed before, but I am struggling to find a starightforward explanation of how to approach configuration between local development and production server.
What I have done so far: I had one my_app_config.py
file that had a section with machine / scenario (test vs production) sections I could just comment out. I would develop with my local machine path hardcoded, test database connection string, my test spreadsheet location, etc. When it comes time to deploy the code to the server, I comment out the "test" section and uncomment the "production section". As you may guess, this is wrought with errors.
I recently adopted the Python ConfigParser library to use .ini
files. Now, I have the following lines in my code
import ConfigParser
config = ConfigParser.RawConfigParser()
config.read(os.path.abspath(os.path.join(os.path.dirname( __file__ ), '..', 'settings',
'my_app_config.ini')))
database_connect_string_admin = config.get('Database', 'admin_str')
The problems with this are many...
my_app_config.ini
can't change. So, I rely on comments within the content of the .ini
file to know which one I'm dealing with. They are stored in a folder tree so I know which is which. I tried to set environment variables at the beginning of the program, but all the imports for all modules are performed right away at code launch. I was getting "not found" errors left and right.
What I want: To understand how to keep all the configurations stored in one place that is not easy to lose track of what I am doing. I want an easy way to keep these configuration files (ideally one file or script) under version control (security is a whole other issue, I digress). I want to be able to seamlessly switch contexts (local-test, local-production, serverA-test, serverA-production, serverB-test, serverB-production) My app uses
my_app_config.ini
read by my parseruwsgi.ini
read by the uwsgi application server emperorweb_config.py
used by the flask applicationnginx.conf
symlinked to the web server's configurationcelery
configurationnot to mention different paths for everything (ideally handled within the magic config handling genie). I imagine once I figure this out I will be embarrassed it took so long to grasp.
Are Environment variables what I am trying to do here?
Python Configuration File The simplest way to write configuration files is to simply write a separate file that contains Python code. You might want to call it something like databaseconfig.py . Then you could add the line *config.py to your . gitignore file to avoid uploading it accidentally.
Python has a standard configuration library called “configparser”, which is very convenient and powerful, but does not address many common problems.
I would probably use something like appName. cfg, where appName identifies your application, or the part of the application the configuration is for. Save this answer.
You have to try `simple-settings. It will resolve all you issues. One way set environment variable
in development
$ export SIMPLE_SETTINGS=settings.general,settings.development
$ python app.py
in production
$ export SIMPLE_SETTINGS=settings.general,settings.production
$ python app.py
You can keep `` development.pyand
production.py` not in a repository for security reasons.
Example
settings/general.py
SIMPLE_CONF = 'simple'
app.py
from simple_settings import settings
print(settings.SIMPLE_CONF)
The documentation indicated many more features and benefits.
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