Start:
docker run -d --name rstudio -p 8989:8787 -v /local/dir:/home/USER icebert/rserver
Create user matching local user:
docker exec rstudio groupadd USER -g 1024
docker exec rstudio useradd USER -u 1024 -g 1024 -d /home/USER -s /bin/bash
or use interactive command:
docker exec -it rstudio /bin/bash