Created dockerfile for running WMGZON web application

app.py

@@ -1,6 +1,7 @@
-from flask import Flask, render_template
+from flask import Flask
 from os import environ
 from web import blueprint
+
 '''
     Main entrypoint for Flask application. 
     Initialises any components that are needed at runtime such as the 
@@ -20,7 +21,7 @@ def main():
 
     # Register a blueprint 
     app.register_blueprint(blueprint)
-    app.run(debug=True)
+    app.run(debug=True, host="0.0.0.0")
     
 if __name__ == "__main__":
     main()