adds uwsgi support instead of using flask dev server

- uses existing wsgi.py file

- adds wsgi.ini file
  - sets socket
  - defines application to be run, which it gets from wsgi.py file
  - uses http communication to nginx server
  - some random number of workers

- updates Dockerfile and docker-entrypoint

docker/calendarwatch/docker-entrypoint.sh

@@ -1,7 +1,5 @@
 #!/bin/sh
 cd /home/calendarwatch
-# uwsgi --http-socket 0.0.0.0:8084 -w wsgi --protocol=https 
+uwsgi --ini wsgi.ini
-export FLASK_APP=/home/calendarwatch/server.py
-python3 server.py
 echo "server has been started"  
 

wsgi.ini

@@ -0,0 +1,13 @@
+# uwsgi --socket 0.0.0.0:8084 -w wsgi:application --protocol=http
+
+[uwsgi]
+module = wsgi:application
+protocol = http
+master = true
+processes = 5
+
+socket = 0.0.0.0:8084
+
+die-on-term = true
+
+