pi@raspberrypi:~/hot-tub-controller $ python startup.py
startup.py:150: RuntimeWarning: No channels have been set up yet - nothing to clean up!  Try cleaning up at the end of your program instead!
  GPIO.cleanup()
/home/pi/hot-tub-controller/adc.py:16: RuntimeWarning: This channel is already in use, continuing anyway.  Use GPIO.setwarnings(False) to disable warnings.
  GPIO.setup(self.SPIMOSI, GPIO.OUT)
/home/pi/hot-tub-controller/adc.py:18: RuntimeWarning: This channel is already in use, continuing anyway.  Use GPIO.setwarnings(False) to disable warnings.
  GPIO.setup(self.SPICLK, GPIO.OUT)
/home/pi/hot-tub-controller/adc.py:19: RuntimeWarning: This channel is already in use, continuing anyway.  Use GPIO.setwarnings(False) to disable warnings.
  GPIO.setup(self.SPICS, GPIO.OUT)
[Errno 2] No such file or directory: '/home/pi/config.json'
/home/pi/hot-tub-controller/controller.py:13: RuntimeWarning: This channel is already in use, continuing anyway.  Use GPIO.setwarnings(False) to disable warnings.
  GPIO.OUT, initial=GPIO.LOW)
[11/Jun/2018:21:31:08] ENGINE Listening for SIGHUP.
[11/Jun/2018:21:31:08] ENGINE Listening for SIGTERM.
[11/Jun/2018:21:31:08] ENGINE Listening for SIGUSR1.
[11/Jun/2018:21:31:08] ENGINE Bus STARTING
[11/Jun/2018:21:31:08] ENGINE Started monitor thread '_TimeoutMonitor'.
[11/Jun/2018:21:31:08] ENGINE Started monitor thread 'Autoreloader'.
[11/Jun/2018:21:31:13] ENGINE Error in HTTP server: shutting down
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/cherrypy/process/servers.py", line 205, in _start_http_thread
    self.httpserver.start()
  File "/usr/lib/python2.7/dist-packages/cherrypy/wsgiserver/wsgiserver2.py", line 1946, in start
    self.bind(af, socktype, proto)
  File "/usr/lib/python2.7/dist-packages/cherrypy/wsgiserver/wsgiserver2.py", line 2000, in bind
    self.socket = self.ssl_adapter.bind(self.socket)
  File "/usr/lib/python2.7/dist-packages/cherrypy/wsgiserver/ssl_pyopenssl.py", line 180, in bind
    self.context = self.get_context()
  File "/usr/lib/python2.7/dist-packages/cherrypy/wsgiserver/ssl_pyopenssl.py", line 193, in get_context
    c.use_privatekey_file(self.private_key)
  File "/usr/lib/python2.7/dist-packages/OpenSSL/SSL.py", line 655, in use_privatekey_file
    self._raise_passphrase_exception()
  File "/usr/lib/python2.7/dist-packages/OpenSSL/SSL.py", line 631, in _raise_passphrase_exception
    _raise_current_error()
  File "/usr/lib/python2.7/dist-packages/OpenSSL/_util.py", line 48, in exception_from_error_queue
    raise exception_type(errors)
Error: [('system library', 'fopen', 'No such file or directory'), ('BIO routines', 'file_ctrl', 'system lib'), ('SSL routines', 'SSL_CTX_use_PrivateKey_file', 'system lib')]

[11/Jun/2018:21:31:13] ENGINE Bus STOPPING
[11/Jun/2018:21:31:13] ENGINE HTTP Server cherrypy._cpwsgi_server.CPWSGIServer(('0.0.0.0', 8443)) already shut down
[11/Jun/2018:21:31:13] ENGINE Stopped thread '_TimeoutMonitor'.
[11/Jun/2018:21:31:13] ENGINE Stopped thread 'Autoreloader'.
[11/Jun/2018:21:31:13] ENGINE Bus STOPPED
[11/Jun/2018:21:31:13] ENGINE Bus EXITING
[11/Jun/2018:21:31:13] ENGINE Bus EXITED