Thanks for your help! SuccessfulKoala55 , I re-done the sudo chown -R 1000:1000 /opt/clearml and restart the docker containers, everything goes well!
Now I have a new issue. When I create a new credential in my profile, the files_server conf automaticlly generated still direct to the port 8081 , despite I change the port mapping in docker-compose.yml from 8081 to 8084 as I mentioned before. Is there any way around to make it give the mapped port?