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docs: Clarify security boundaries in privileged mode

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See https://github.com/kata-containers/runtime/issues/1568

Fixes #453

Signed-off-by: Leopold Schabel <mail@leoschabel.de>
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Leopold Schabel 2019-05-02 11:12:39 +00:00 committed by Leopold
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6
Limitations.md
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@ -221,11 +221,15 @@ See more documentation at
Privileged support in Kata is essentially different from `runc` containers.
Kata does support `docker run --privileged` command, but in this case full access
to the guest VM is provided instead of the host.
to the guest VM is provided in addition to some host access.
The container runs with elevated capabilities within the guest and is granted
access to guest devices instead of the host devices.
This is also true with using `securityContext privileged=true` with Kubernetes.
The container may also be granted full access to a subset of host devices
(https://github.com/kata-containers/runtime/issues/1568).
# Miscellaneous
This section lists limitations where the possible solutions are uncertain.