[release-1.1] cgroupsv2: reconstruct device allowlist/drop internal device allow list state #10714
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When a block volume is non-hotpluggable (i.e. it is specified explicitly in the VMI spec), the device cgroup permissions are managed purely by Kubernetes and CRI. For v2, that means a BPF program is assigned to the POD's cgroup. However, when we manage hotplug volumes, we overwrite the BPF program to allow access to the new block device. The problem is that we do not know what the existing BPF program does, hence we just follow some assumptions about the 'default' devices that we need to allow (e.g. /dev/kvm and some others). We need to also consider the non-hotpluggable volumes, otherwise a VM with a block PVC or DV will fail to start if a hotplug volume is attached to it. Signed-off-by: Vasiliy Ulyanov <vulyanov@suse.de> Signed-off-by: Alex Kalenyuk <akalenyu@redhat.com>
Signed-off-by: Vasiliy Ulyanov <vulyanov@suse.de> Signed-off-by: Alex Kalenyuk <akalenyu@redhat.com>
Keep the existing device rules within the manager state. Signed-off-by: Vasiliy Ulyanov <vulyanov@suse.de> Signed-off-by: Alex Kalenyuk <akalenyu@redhat.com>
…rsistent disk Signed-off-by: Alex Kalenyuk <akalenyu@redhat.com>
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This is an automated cherry-pick of #10689
/assign akalenyu