Singularity Compatibility Variables

compat_singularity.bsh

A collection of variables to help cope with the differences between singularity versions.

singularity_singularityenv_priority_bug

In singularity 3.0-3.5, there is an ambiguity when it comes to the precedence of {VAR} vs SINGULARITYENV_{VAR} variables being inherited from the host.

Return Value:

0 - Singularity has the ambiguity bug, and the value of the environment variable will be hard to predict
1 - Singularity does not have the ambiguity bug, and SINGULARITYENV_ takes priority.