Motivation and intended usage:

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In order to use the RStudio Server in the kubernetes cluster, users must exist in the OOD application.  If you want to use this system with your course, please create a help request for the Systems Engineering Team (SET) here:
https://jira.cc.lehigh.edu/servicedesk/customer/portal/1
Please include a list of all users of the system including all instructors, TAs, and students.  SET will make sure the proper accounts are provisioned for everyone.

Known issues:

A harmless error that shows up on starting an RStudio session that we have not yet found a way to prevent is this oneThe following error is harmless:

2022-01-26T20:04:48.938685Z [rsession-<username>] WARNING No memory control group found in /proc/self/cgroup; LOGGED FROM: std::__cxx11::string rstudio::core::system::{anonymous}::getMemoryCgroup() src/cpp/core/system/LinuxResources.cpp:335

This It shows up on starting an RStudio session.  We have not yet found a way to prevent it from happening.  The error is related to a version mismatch between the kubernetes, the container engine it's using to run RStudio, and the OS running both.  It should eventually go away when we are able to upgrade everything to use the same version of "cgroups", which are used to control the resources granted to containers.  Everything will still work fine in spite of this error.

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Upon using the "plot" function in RStudio, this error may appear:

Warning message:
In grSoftVersion() :
  unable to load shared object '/usr/local/lib/R/modules//R_X11.so':
  libXt.so.6: cannot open shared object file: No such file or directory

This is also harmless - the plot function still works.  The error is caused by the way the container was built - the RStudio images are based on the Rocker project (https://www.rocker-project.org/ ) and this is related to the way they built the image.  An update to the image would fix it - we'll raise an issue in the Rocker project's github to make sure they are aware of it.