add config.ini and save db during upgrade

flaskapp/config.ini

@@ -0,0 +1,2 @@
+[sectionname]
+CONFIGVARIABLE = testvalue

flaskapp/routes.py

@@ -2,6 +2,14 @@ from flask import render_template, request, redirect
 from flaskapp import app, db
 from flaskapp.functions import *
 from flaskapp.models import *
+import configparser
+
+CONFIG_PATH = "/var/flaskapp/flaskapp/config.ini"
+
+config = configparser.ConfigParser()
+config.read(CONFIG_PATH)
+
+CONFIGVARIABLE = config.get('sectionname', 'CONFIGVARIABLE')
 
 @app.route('/', methods=['GET'])
 def index():