mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2025-06-16 11:30:20 +00:00
479df7134a
This change allows hooks to be configured with debug logging. This is currently only enabled for the hooks generated from the runtime. Signed-off-by: Evan Lezar <elezar@nvidia.com>
97 lines
2.2 KiB
Go
97 lines
2.2 KiB
Go
/**
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# Copyright (c) NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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**/
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package discover
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import (
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"fmt"
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"path/filepath"
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"tags.cncf.io/container-device-interface/pkg/cdi"
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)
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var _ Discover = (*Hook)(nil)
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// Devices returns an empty list of devices for a Hook discoverer.
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func (h *Hook) Devices() ([]Device, error) {
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return nil, nil
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}
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// Mounts returns an empty list of mounts for a Hook discoverer.
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func (h *Hook) Mounts() ([]Mount, error) {
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return nil, nil
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}
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// Hooks allows the Hook type to also implement the Discoverer interface.
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// It returns a single hook
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func (h *Hook) Hooks() ([]Hook, error) {
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if h == nil {
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return nil, nil
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}
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return []Hook{*h}, nil
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}
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// Option is a function that configures the nvcdilib
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type Option func(*CDIHook)
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type CDIHook struct {
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nvidiaCDIHookPath string
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debugLogging bool
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}
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type HookCreator interface {
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Create(string, ...string) *Hook
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}
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func NewHookCreator(nvidiaCDIHookPath string, debugLogging bool) HookCreator {
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CDIHook := &CDIHook{
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nvidiaCDIHookPath: nvidiaCDIHookPath,
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debugLogging: debugLogging,
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}
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return CDIHook
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}
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func (c CDIHook) Create(name string, args ...string) *Hook {
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if name == "create-symlinks" {
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if len(args) == 0 {
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return nil
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}
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links := []string{}
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for _, arg := range args {
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links = append(links, "--link", arg)
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}
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args = links
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}
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return &Hook{
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Lifecycle: cdi.CreateContainerHook,
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Path: c.nvidiaCDIHookPath,
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Args: append(c.requiredArgs(name), args...),
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Env: []string{fmt.Sprintf("NVIDIA_CTK_DEBUG=%v", c.debugLogging)},
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}
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}
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func (c CDIHook) requiredArgs(name string) []string {
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base := filepath.Base(c.nvidiaCDIHookPath)
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if base == "nvidia-ctk" {
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return []string{base, "hook", name}
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}
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return []string{base, name}
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}
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