akelch/app_server

a lightweight web application launcher for gunicorn and static files.

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app_server's Issues

suppress "Connection in use" error logs at startup

Hi! First, thanks (again) for making App Server. It's great!

When I first started using it, I spent a bit of time debugging the "Connection in use...Retrying... error log messages below before I realized they were spurious. Any idea what's happening, or how we could prevent them? Looks like they're from gunicorn, I assume initially connecting to its workers, and the app's Python runtime just hasn't finished loading yet? I tried a different gunicorn port and both the default entrypoint and a custom one in my app.yaml, but no luck. I also looked for any gunicorn settings around worker connection grace period, but no luck.

[2021-10-31 09:45:51 -0700] [25527] [INFO] Starting gunicorn 20.1.0
[2021-10-31 09:45:51 -0700] [25527] [INFO] Listening at: http://0.0.0.0:8090 (25527)
[2021-10-31 09:45:51 -0700] [25527] [INFO] Using worker: gthread
[2021-10-31 09:45:51 -0700] [25528] [INFO] Booting worker with pid: 25528
 * Running on http://localhost:8080/ (Press CTRL+C to quit)
 * Restarting with stat
[2021-10-31 09:45:56 -0700] [25531] [INFO] Starting gunicorn 20.1.0
[2021-10-31 09:45:56 -0700] [25531] [ERROR] Connection in use: ('', 8090)
[2021-10-31 09:45:56 -0700] [25531] [ERROR] Retrying in 1 second.
[2021-10-31 09:45:57 -0700] [25531] [ERROR] Connection in use: ('', 8090)
[2021-10-31 09:45:57 -0700] [25531] [ERROR] Retrying in 1 second.
[2021-10-31 09:45:58 -0700] [25531] [ERROR] Connection in use: ('', 8090)
[2021-10-31 09:45:58 -0700] [25531] [ERROR] Retrying in 1 second.
[2021-10-31 09:45:59 -0700] [25531] [ERROR] Connection in use: ('', 8090)
[2021-10-31 09:45:59 -0700] [25531] [ERROR] Retrying in 1 second.
[2021-10-31 09:46:00 -0700] [25531] [ERROR] Connection in use: ('', 8090)
[2021-10-31 09:46:00 -0700] [25531] [ERROR] Retrying in 1 second.
 * Debugger is active!
 * Debugger PIN: 116-286-908
[2021-10-31 09:46:01 -0700] [25531] [ERROR] Can't connect to ('', 8090)
127.0.0.1 - - [31/Oct/2021 09:46:22] "GET / HTTP/1.1" 200 -

Another data point is that they happen again when you change an app source file and gunicorn loads its worker, which confirms the theory that it's the worker startup delay, but the Connection in use message is still a bit confusing.

static handler for home page doesn't work

Hi again! I haven't dug into this one yet, but I figured I'd report it first. Evidently static_files isn't supported for the home page? eg this returns a 404:

- url: /
  static_files: static/index.html
  upload: static/index.html

...but if you add any path to url, like this, it works.

- url: /x
  static_files: static/index.html
  upload: static/index.html