mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-30 00:11:59 +00:00
b68b3c543b
This mirrors what is done in cri-o and allows for devices nodes from, for example, the driver container to be injected into a container at /dev instead of <ROOT>/dev Signed-off-by: Evan Lezar <elezar@nvidia.com>
68 lines
2.1 KiB
Go
68 lines
2.1 KiB
Go
/**
|
|
# Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
|
|
#
|
|
# 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 edits
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
|
|
"github.com/container-orchestrated-devices/container-device-interface/pkg/cdi"
|
|
"github.com/container-orchestrated-devices/container-device-interface/specs-go"
|
|
|
|
"github.com/opencontainers/runc/libcontainer/devices"
|
|
)
|
|
|
|
type device discover.Device
|
|
|
|
// toEdits converts a discovered device to CDI Container Edits.
|
|
func (d device) toEdits() (*cdi.ContainerEdits, error) {
|
|
deviceNode, err := d.toSpec()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
e := cdi.ContainerEdits{
|
|
ContainerEdits: &specs.ContainerEdits{
|
|
DeviceNodes: []*specs.DeviceNode{deviceNode},
|
|
},
|
|
}
|
|
return &e, nil
|
|
}
|
|
|
|
// toSpec converts a discovered Device to a CDI Spec Device. Note
|
|
// that missing info is filled in when edits are applied by querying the Device node.
|
|
func (d device) toSpec() (*specs.DeviceNode, error) {
|
|
// NOTE: This mirrors what cri-o does.
|
|
// https://github.com/cri-o/cri-o/blob/ca3bb80a3dda0440659fcf8da8ed6f23211de94e/internal/config/device/device.go#L93
|
|
// This can be removed once https://github.com/container-orchestrated-devices/container-device-interface/issues/72 is addressed
|
|
dev, err := devices.DeviceFromPath(d.HostPath, "rwm")
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to query device node %v: %v", d.HostPath, err)
|
|
}
|
|
s := specs.DeviceNode{
|
|
Path: d.Path,
|
|
Type: string(dev.Type),
|
|
Major: dev.Major,
|
|
Minor: dev.Minor,
|
|
FileMode: &dev.FileMode,
|
|
UID: &dev.Uid,
|
|
GID: &dev.Gid,
|
|
}
|
|
|
|
return &s, nil
|
|
}
|