1. Add disable_block_device_use to CLH settings file, for parity with
the already existing QEMU settings.
2. Set DEFDISABLEBLOCK := true by default for both QEMU and CLH. After
this change, Kata Guests will use by default virtio-fs to access
container rootfs directories from their Hosts. Hosts that were
designed to use Host block devices attached to the Guests can
re-enable these rootfs block devices by changing the value of
disable_block_device_use back to false in their settings files.
3. Add test using container image without any rootfs layers. Depending
on the container runtime and image snapshotter being used, the empty
container rootfs image might get stored on a host block device that
cannot be safely hotplugged to a guest VM, because the host is using
the same block device.
4. Add block device hotplug safety warning into the Kata Shim
configuration files.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Signed-off-by: Fabiano Fidêncio <ffidencio@nvidia.com>
Signed-off-by: Cameron McDermott <cameron@northflank.com>
This PR updates the devmapper docs by updating the url link
for the current containerd devmapper information.
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
Updated the architecture document to explain that if you wish to
constrain the amount of disk space a container uses, you need to use an
existing facility such as `quota(1)`s or device mapper limits.
Fixes: #4430.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
This PR updates the storage documentation link for the devicemapper
snapshotter.
Fixes#4398
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
