Files
cozystack/internal/gpu/config.go
Aleksei Sviridkin 2aaf7f6872 feat(gpu): count the KubeVirt table's GPU names as GPU resource names
The NVIDIA and mediated entries of the KubeVirt permittedHostDevices
table are GPU resource names besides the hoster's gpu.resourceNames
list, whether the hoster sets one or not. Without that, a
GPU name only the table carries, on a node whose agent reports nothing
and with no class of its own, would not be a GPU resource name: under
forbidden the raw-name policy would let a VM or a pod request it
directly, and the VMI webhook would take it for a non-GPU host device.

The binder adds those names to the effective set it publishes in the
settings ConfigMap, which the policy and cozystack-api read, and the VMI
webhook adds them when it looks for a VMI's own GPU entries. A PCI entry
of another vendor, such as a ConnectX VF, stays out. Whether a class's
resource name is in the table at all is still checked against every
PCI and mediated entry.

Assisted-by: LLM
Signed-off-by: Aleksei Sviridkin <f@lex.la>
2026-10-21 13:31:33 +03:00

50 lines
1.8 KiB
Go

/*
Copyright 2026 The Cozystack Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package gpu
import "time"
// Config is the GPU feature configuration cozystack-controller takes from
// its flags.
type Config struct {
// Enabled turns on everything that watches KubeVirt objects: binder
// placement, the VMI and pod webhooks, VMI garbage collection. The
// gpu.cozystack.io lifecycle paths (finalizers, usage-record cleanup)
// run regardless, so disabling the feature never hangs a deletion.
Enabled bool
// ResourceNames is the hoster's gpu.resourceNames list. The effective
// set adds the KubeVirt table's GPU names (model.PermittedGPUNames) and
// class and agent-reported names (model.ResourceNames).
ResourceNames []string
// RawResourceNames is the hoster's gpu.rawResourceNames; empty means
// RawNamesAllowed.
RawResourceNames RawNamesPolicy
// LostCapacityGrace is how long a node may serve fewer units of a
// resource than its devices hold, or stay NotReady, before it has lost
// capacity. kubelet reports zero allocatable after every restart, so it
// must outlast a plugin re-registration.
LostCapacityGrace time.Duration
// AttachmentGrace is how long an attachment, or a template device, may
// wait for its VMI to appear. It must exceed the API server request
// timeout.
AttachmentGrace time.Duration
}