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https://github.com/NVIDIA/nvidia-container-toolkit
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83743e3613
This change adds an nvidia-container-runtime.modes.cdi.spec-dirs config option that allows the default spec dirs to be overridden. Signed-off-by: Evan Lezar <elezar@nvidia.com>
102 lines
2.6 KiB
Go
102 lines
2.6 KiB
Go
/**
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# Copyright (c) 2022, 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 config
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import (
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"fmt"
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"github.com/pelletier/go-toml"
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"github.com/sirupsen/logrus"
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)
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const (
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dockerRuncExecutableName = "docker-runc"
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runcExecutableName = "runc"
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auto = "auto"
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)
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// RuntimeConfig stores the config options for the NVIDIA Container Runtime
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type RuntimeConfig struct {
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DebugFilePath string `toml:"debug"`
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// LogLevel defines the logging level for the application
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LogLevel string `toml:"log-level"`
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// Runtimes defines the candidates for the low-level runtime
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Runtimes []string `toml:"runtimes"`
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Mode string `toml:"mode"`
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Modes modesConfig `toml:"modes"`
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}
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// modesConfig defines (optional) per-mode configs
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type modesConfig struct {
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CSV csvModeConfig `toml:"csv"`
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CDI cdiModeConfig `toml:"cdi"`
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}
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type cdiModeConfig struct {
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// SpecDirs allows for the default spec dirs for CDI to be overridden
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SpecDirs []string `toml:"spec-dirs"`
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}
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type csvModeConfig struct {
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MountSpecPath string `toml:"mount-spec-path"`
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}
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// dummy allows us to unmarshal only a RuntimeConfig from a *toml.Tree
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type dummy struct {
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Runtime RuntimeConfig `toml:"nvidia-container-runtime"`
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}
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// getRuntimeConfigFrom reads the nvidia container runtime config from the specified toml Tree.
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func getRuntimeConfigFrom(toml *toml.Tree) (*RuntimeConfig, error) {
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cfg := GetDefaultRuntimeConfig()
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if toml == nil {
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return cfg, nil
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}
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d := dummy{
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Runtime: *cfg,
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}
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if err := toml.Unmarshal(&d); err != nil {
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return nil, fmt.Errorf("failed to unmarshal runtime config: %v", err)
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}
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return &d.Runtime, nil
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}
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// GetDefaultRuntimeConfig defines the default values for the config
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func GetDefaultRuntimeConfig() *RuntimeConfig {
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c := RuntimeConfig{
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DebugFilePath: "/dev/null",
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LogLevel: logrus.InfoLevel.String(),
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Runtimes: []string{
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dockerRuncExecutableName,
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runcExecutableName,
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},
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Mode: auto,
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Modes: modesConfig{
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CSV: csvModeConfig{
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MountSpecPath: "/etc/nvidia-container-runtime/host-files-for-container.d",
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},
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},
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}
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return &c
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}
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