Merge remote-tracking branch 'origin/dev' into dev

backend_refactor/rebuild_and_run.sh

@@ -1,3 +1,4 @@
 sudo docker build -t backend .
 sudo docker container rm -f backend
 sudo docker run -e MYSQL_USER=root -e MYSQL_PASSWORD=root -e MYSQL_ADDRESS=106.15.1.178 -e MYSQL_DATABASE=openpose -p 8090:80 -v /tmp:/data --gpus all -d --name backend backend
+sudo docker logs -f backend