mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-29 07:21:46 +00:00
75 lines
2.3 KiB
Go
75 lines
2.3 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 discover
|
|
|
|
import (
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
|
|
"github.com/container-orchestrated-devices/container-device-interface/pkg/cdi"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
type legacy struct {
|
|
None
|
|
logger *logrus.Logger
|
|
lookup lookup.Locator
|
|
}
|
|
|
|
const (
|
|
nvidiaContainerRuntimeHookExecutable = "nvidia-container-runtime-hook"
|
|
hookDefaultFilePath = "/usr/bin/nvidia-container-runtime-hook"
|
|
)
|
|
|
|
var _ Discover = (*legacy)(nil)
|
|
|
|
// NewLegacyDiscoverer creates a discoverer for the legacy runtime
|
|
func NewLegacyDiscoverer(logger *logrus.Logger, root string) (Discover, error) {
|
|
d := legacy{
|
|
logger: logger,
|
|
lookup: lookup.NewExecutableLocator(logger, root),
|
|
}
|
|
|
|
return &d, nil
|
|
}
|
|
|
|
// Hooks returns the "legacy" NVIDIA Container Runtime hook. This hook calls out
|
|
// to the nvidia-container-cli to make modifications to the container as defined
|
|
// in libnvidia-container.
|
|
func (d legacy) Hooks() ([]Hook, error) {
|
|
var hooks []Hook
|
|
|
|
hookPath := hookDefaultFilePath
|
|
targets, err := d.lookup.Locate(nvidiaContainerRuntimeHookExecutable)
|
|
if err != nil {
|
|
d.logger.Warnf("Failed to locate %v: %v", nvidiaContainerRuntimeHookExecutable, err)
|
|
} else if len(targets) == 0 {
|
|
d.logger.Warnf("%v not found", nvidiaContainerRuntimeHookExecutable)
|
|
} else {
|
|
d.logger.Debugf("Found %v candidates: %v", nvidiaContainerRuntimeHookExecutable, targets)
|
|
hookPath = targets[0]
|
|
}
|
|
d.logger.Debugf("Using NVIDIA Container Runtime Hook path %v", hookPath)
|
|
|
|
args := []string{hookPath, "prestart"}
|
|
legacyHook := Hook{
|
|
Lifecycle: cdi.PrestartHook,
|
|
Path: hookPath,
|
|
Args: args,
|
|
}
|
|
hooks = append(hooks, legacyHook)
|
|
return hooks, nil
|
|
}
|