As I suspected, from your log:
agent.package_manager.system_site_packages = falseWhich is exactly the problem of the missing tensorflow (basically it creates a new venv inside the docker, but without the flag On, it does not inherit the docker preinstalled packages)
This flag should have been true.
Could it be that the clearml.conf you are providing for the glue includes this value?
(basically you should only have the sections that are either credentials or missing from the default, there is no need to pass full conf file)