I think you're mistaken... this is the file in the docker library: https://github.com/allegroai/clearml-server/blob/master/docker/docker-compose.yml
Note it has no line such as:
- "echo \"#!/bin/bash\" > /opt/clearml/all.sh && echo \"/opt/clearml/wrapper.sh webserver&\" >> /opt/clearml/all.sh && echo \"/opt/clearml/wrapper.sh fileserver&\" >> /opt/clearml/all.sh && echo \"/opt/clearml/wrapper.sh apiserver\" >> /opt/clearml/all.sh && cat /opt/clearml/all.sh && chmod +x /opt/clearml/all.sh && /opt/clearml/all.sh"