mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 00:08:11 +00:00
3604927034
This also removes the indirect dependency on runc which has a CVE. Signed-off-by: Evan Lezar <elezar@nvidia.com>
117 lines
3.1 KiB
Go
117 lines
3.1 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"
|
|
|
|
ociSpecs "github.com/opencontainers/runtime-spec/specs-go"
|
|
"tags.cncf.io/container-device-interface/pkg/cdi"
|
|
"tags.cncf.io/container-device-interface/specs-go"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/discover"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
|
|
)
|
|
|
|
type edits struct {
|
|
cdi.ContainerEdits
|
|
logger logger.Interface
|
|
}
|
|
|
|
// NewSpecEdits creates a SpecModifier that defines the required OCI spec edits (as CDI ContainerEdits) from the specified
|
|
// discoverer.
|
|
func NewSpecEdits(logger logger.Interface, d discover.Discover) (oci.SpecModifier, error) {
|
|
c, err := FromDiscoverer(d)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error constructing container edits: %v", err)
|
|
}
|
|
e := edits{
|
|
ContainerEdits: *c,
|
|
logger: logger,
|
|
}
|
|
|
|
return &e, nil
|
|
}
|
|
|
|
// FromDiscoverer creates CDI container edits for the specified discoverer.
|
|
func FromDiscoverer(d discover.Discover) (*cdi.ContainerEdits, error) {
|
|
devices, err := d.Devices()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to discover devices: %v", err)
|
|
}
|
|
|
|
mounts, err := d.Mounts()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to discover mounts: %v", err)
|
|
}
|
|
|
|
hooks, err := d.Hooks()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to discover hooks: %v", err)
|
|
}
|
|
|
|
c := NewContainerEdits()
|
|
for _, d := range devices {
|
|
edits, err := device(d).toEdits()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to created container edits for device: %v", err)
|
|
}
|
|
c.Append(edits)
|
|
}
|
|
|
|
for _, m := range mounts {
|
|
c.Append(mount(m).toEdits())
|
|
}
|
|
|
|
for _, h := range hooks {
|
|
c.Append(hook(h).toEdits())
|
|
}
|
|
|
|
return c, nil
|
|
}
|
|
|
|
// NewContainerEdits is a utility function to create a CDI ContainerEdits struct.
|
|
func NewContainerEdits() *cdi.ContainerEdits {
|
|
c := cdi.ContainerEdits{
|
|
ContainerEdits: &specs.ContainerEdits{},
|
|
}
|
|
return &c
|
|
}
|
|
|
|
// Modify applies the defined edits to the incoming OCI spec
|
|
func (e *edits) Modify(spec *ociSpecs.Spec) error {
|
|
if e == nil || e.ContainerEdits.ContainerEdits == nil {
|
|
return nil
|
|
}
|
|
|
|
e.logger.Info("Mounts:")
|
|
for _, mount := range e.Mounts {
|
|
e.logger.Infof("Mounting %v at %v", mount.HostPath, mount.ContainerPath)
|
|
}
|
|
e.logger.Infof("Devices:")
|
|
for _, device := range e.DeviceNodes {
|
|
e.logger.Infof("Injecting %v", device.Path)
|
|
}
|
|
e.logger.Infof("Hooks:")
|
|
for _, hook := range e.Hooks {
|
|
e.logger.Infof("Injecting %v %v", hook.Path, hook.Args)
|
|
}
|
|
|
|
return e.Apply(spec)
|
|
}
|