Background Please read the following before go ahead:
what is docker?
what is Rocker?
what is singularity?
from Harvard Research computing website: Odyssey has singularity installed.
Why Singularity? There are some important differences between Docker and Singularity:
Docker and Singularity have their own container formats. Docker containers may be imported to run via Singularity. Docker containers need root privileges for full functionality which is not suitable for a shared HPC environment.