Debug is broken

[mfeit-internet2]

@szymontrocha noted problems enabling and disabling debug which have been around for a bit.

Services

We no longer write a PID file and the debug command needs to get the PID from somewhere. Use this to find it (returns 0 if the process isn't running):

systemctl show --property MainPID --value pscheduler-ticker

API

This was also spotted in the logs; it looks like the debug endpoint doesn't import the module containing remote_address().

# tail pscheduler.log
2025-01-09T16:27:21.196170+01:00 perfsonar1 pscheduler-api[970945] ERROR        rv = self.dispatch_request()
2025-01-09T16:27:21.196433+01:00 perfsonar1 pscheduler-api[970945] ERROR             ^^^^^^^^^^^^^^^^^^^^^^^
2025-01-09T16:27:21.196704+01:00 perfsonar1 pscheduler-api[970945] ERROR      File "/usr/lib/python3/dist-packages/flask/app.py", line 1796, in dispatch_request
2025-01-09T16:27:21.196956+01:00 perfsonar1 pscheduler-api[970945] ERROR        return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
2025-01-09T16:27:21.197208+01:00 perfsonar1 pscheduler-api[970945] ERROR               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-01-09T16:27:21.197471+01:00 perfsonar1 pscheduler-api[970945] ERROR      File "/usr/share/pscheduler/api-server/pschedulerapiserver/debug.py", line 49, in debug
2025-01-09T16:27:21.197729+01:00 perfsonar1 pscheduler-api[970945] ERROR        if not remote_address() in ['127.0.0.1', '::1']:
2025-01-09T16:27:21.198052+01:00 perfsonar1 pscheduler-api[970945] ERROR               ^^^^^^^^^^^^^^
2025-01-09T16:27:21.198318+01:00 perfsonar1 pscheduler-api[970945] ERROR    NameError: name 'remote_address' is not defined
2025-01-09T16:27:21.199208+01:00 perfsonar1 pscheduler-api[970945] ERROR    Internal error 127.0.0.1 PUT https://localhost/pscheduler/debug: Internal problem; see system logs.