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56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
# -*- coding: utf-8 -
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#
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# This file is part of gunicorn released under the MIT license.
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# See the NOTICE for more information.
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import os
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import gunicorn.app.base
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import gunicorn.arbiter
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class PreloadedAppWithEnvSettings(gunicorn.app.base.BaseApplication):
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"""
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Simple application that makes use of the 'preload' feature to
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start the application before spawning worker processes and sets
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environmental variable configuration settings.
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"""
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def init(self, parser, opts, args):
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"""No-op"""
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def load(self):
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"""No-op"""
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def load_config(self):
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"""Set the 'preload_app' and 'raw_env' settings in order to verify their
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interaction below.
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"""
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self.cfg.set('raw_env', [
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'SOME_PATH=/tmp/something', 'OTHER_PATH=/tmp/something/else'])
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self.cfg.set('preload_app', True)
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def wsgi(self):
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"""Assert that the expected environmental variables are set when
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the main entry point of this application is called as part of a
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'preloaded' application.
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"""
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verify_env_vars()
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return super(PreloadedAppWithEnvSettings, self).wsgi()
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def verify_env_vars():
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assert os.getenv('SOME_PATH') == '/tmp/something'
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assert os.getenv('OTHER_PATH') == '/tmp/something/else'
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def test_env_vars_available_during_preload():
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"""Ensure that configured environmental variables are set during the
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initial set up of the application (called from the .setup() method of
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the Arbiter) such that they are available during the initial loading
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of the WSGI application.
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"""
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# Note that we aren't making any assertions here, they are made in the
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# dummy application object being loaded here instead.
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gunicorn.arbiter.Arbiter(PreloadedAppWithEnvSettings())
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