Plugins not loaded with Gunicorn

[itdependsnetworks]

Environment

• Nautobot version (Docker tag too if applicable): 2.2.1
• Python version: 3.11
• Database platform, version: psql
• Middleware(s):

Steps to Reproduce

1. Use systemd
2. With gunicorn 21.2.0 or 22.0.0

Expected Behavior

All applications to show

Observed Behavior

We attempted to upgrade our dev environment from 2.1.9 to 2.2.1 but are hitting a weird issue where our plugins are reported as missing. We are only loading 1 or 2 basic plugins right now while we work on updating all our other plugins for 2.x. Oddly we are only seeing this issue on 1 out of 3 identical servers with identical Nautobot installs.

This looks very much like this issue from 2021: Plugin Load Failure · Issue #95 · nautobot/nautobot (github.com)

[gsnider2195]

Re-adding the nautobot.setup() call to nautobot/core/wsgi.py here resolves this issue. @glennmatthews do you see any problems with making this change?