Update Dockerfile

Dockerfile

@@ -37,7 +37,9 @@ RUN mkdir -p /var/log/nginx && \
     chmod -R 777 /var/lib/nginx && \
     chown -R root:root /var/lib/nginx && \
     chmod -R 777 /usr/share/nginx/html && \
-    chown -R root:root /usr/share/nginx/html
+    chown -R root:root /usr/share/nginx/html && \
+    mkdir -p /run && \
+    chmod -R 777 /run
 
 # Step #3: configure nginx and flask
 COPY --from=build-step /app/frontend/build /usr/share/nginx/html