fix dockerfile

docker/Production/Dockerfile

@@ -24,6 +24,7 @@ RUN pip3 install -r requirements.txt \
     && rm config.py
 
 COPY ./docker/Production/entrypoint.sh /usr/local/bin/
+RUN chmod +x /usr/local/bin/entrypoint.sh
 
 ENV FLASK_APP=app/__init__.py
 EXPOSE 80/tcp

docker/Production/config_docker.py

@@ -1,3 +1,7 @@
+# defaults for Docker image
+BIND_ADDRESS='0.0.0.0'
+PORT=80
+
 legal_envvars = (
     'SECRET_KEY',
     'BIND_ADDRESS',