Unable to deploy python app on heroku, port binding error

Question

I'm trying to deploy the following python app on an heroku server: https://github.com/PX4/flight_review

The main server script is called ./serve.py, you will find it under: https://github.com/PX4/flight_review/blob/master/serve.py

It's a tornado web server, but I m not sure on how to configure it, on my local machine I respond to the url http://localhost:5006/

In added a Procfile as follow:

web: ./serve.py --host 0.0.0.0:5006

and also tried with and without other arguments for the port, and also added a PORT variable into the env variable, but I constantly get the following error:

Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch

Any idea on what could go wrong?

Thanks in advance!

Denis Cornehl · Accepted Answer · 2020-07-17 06:27:47Z

1

Following the documentation about Procfiles:

You have to just use the $PORT environment variable, which is set by Heroku when trying to start your dyno.

In your case that would seem to be:

web: ./serve.py --host 0.0.0.0:$PORT

answered Jul 17, 2020 at 6:27

Denis Cornehl

4,2321 gold badge22 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Djodjo Over a year ago

You are right, it now works with web: ./serve.py --port $PORT, but the next error I get is related to the database when trying to post a file app[web.1]: Error when handling POST data <class 'FileNotFoundError'> [Errno 2] No such file or directory: Can I post the error here or do I need to ask a new question? thanks!

Denis Cornehl Over a year ago

that's a separate question IMHO.

Collectives™ on Stack Overflow

Unable to deploy python app on heroku, port binding error

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related