Hi I am trying to run,
gunicorn --bind localhost:8000 --worker-class sanic_gunicorn.Worker module:app
where I have following files
# ls
build
setup.py
dist
module
module.egg-info
venv
#cd module
#ls
__init__.py
__pycache__
__main__.py
app.py
content of __main__.py is as follows
from module.app import create_app_instance
if __name__ == '__main__':
app = create_app_instance()
app.run()
and content of app.py is
#some imports
def create_app_instance():
app = Sanic(name = "app_name")
.....
return app
I am using Sanic web framework and when I am running it's dev server as python -m module it works fine
python3 -m module
[2021-06-16 22:31:36 -0700] [80176] [INFO] Goin' Fast @ http://127.0.0.1:8000
[2021-06-16 22:31:36 -0700] [80176] [INFO] Starting worker [80176]
can someone let me know what am I doing wrong ?
The simple answer is that there's no app exposed inside the module. You have the create_app_instance() method but this is not called.
I would suggest for you to refactor your code as follows. File structure would be:
./wsgi.py
./module/__init__.py
And the contents of those files as below:
.\wsgi.py
from module import create_app_instance
app = create_app_instance()
if __name__ == '__main__':
app.run()
.\module\__init__.py
# this is the contents of your current app.py
#some imports
def create_app_instance():
app = Sanic(name = "app_name")
.....
return app
and then the gunicorn line to start the server would be (please note the comment from The Brewmaster below):
gunicorn --bind localhost:8000 --worker-class sanic_gunicorn.Worker wsgi:app
What this does is it calls the exposed app instance inside wsgi.py. The __main__.py is not needed, and the code from your app.py has been moved to the __init__.py
I highly advise you to read through documentation/tutorials for Application Factory Pattern for Flask. The principle itself is the same as for Sanic, but there's more articles that describe the principle for Flask...