+ ShellAccess:
+ # An admin user can use "arvados-client shell" to start an
+ # interactive shell (with any user ID) in any running
+ # container.
+ Admin: false
+
+ # Any user can use "arvados-client shell" to start an
+ # interactive shell (with any user ID) in any running
+ # container that they started, provided it isn't also
+ # associated with a different user's container request.
+ #
+ # Interactive sessions make it easy to alter the container's
+ # runtime environment in ways that aren't recorded or
+ # reproducible. Consider the implications for automatic
+ # container reuse before enabling and using this feature. In
+ # particular, note that starting an interactive session does
+ # not disqualify a container from being reused by a different
+ # user/workflow in the future.
+ User: false
+