diversify the flask ports, each flask instance has another port to prevent confusion;

components/event_store/service/Dockerfile

@@ -3,7 +3,7 @@ COPY . /app
 WORKDIR /app
 RUN pip install -r requirements.txt
 RUN cd deps; ls; pip install dse-shared-libs-1.tar.gz;
-ENV PORT 5000
-EXPOSE 5000
+ENV PORT 5001
+EXPOSE 5001
 ENTRYPOINT [ "python" ]
 CMD [ "event_store_server.py" ]

components/event_store/service/event_store_server.py

@@ -27,4 +27,4 @@ def home_page():
 if __name__ == '__main__':
     el = EventLogger(redis)
     threading.Thread(target=el.setup_msq_queue).start()
-    threading.Thread(target=app.run).start()
+    threading.Thread(target=app.run, args=('0.0.0.0', 5001)).start()