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vcluster: Make _MakeNodeRoot public
The QA code will also have to generate virtual paths and this functioncomes in handy.
Signed-off-by: Michael Hanselmann <hansmi@google.com>Reviewed-by: Michele Tartara <mtartara@google.com>
Replace frozenset with compat.UniqueFrozenset
This is not a trivial s/frozenset/compat.UniqueFrozenset/, but ratheronly replaces “frozenset” where appropriate. Most of the places are“static” information that doesn't change after the module has beenloaded....
vcluster: Don't virtualize /etc/hosts path
/etc/hosts is a bit special as it's a system-wide file and the virtualcluster/node root doesn't apply. The modification of /etc/hosts shouldbe disabled in virtual clusters. If it isn't, however, the vclusterfunctions would raise an exception complaining about a path outside of...
vcluster: Add more details to docstrings
As requested by René Nussbaumer. Hopefully things are more clear now.
Signed-off-by: Michael Hanselmann <hansmi@google.com>Reviewed-by: René Nussbaumer <rn@google.com>
Add new module for virtual clusters
This module will take care of managing paths for virtual clusters.Unittests are included (100% coverage).