mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 16:29:18 +00:00
5211960fc3
Detect use of --gpus flag in experimental mode See merge request nvidia/container-toolkit/container-toolkit!125
111 lines
3.3 KiB
Go
111 lines
3.3 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 config
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path"
|
|
|
|
"github.com/pelletier/go-toml"
|
|
)
|
|
|
|
const (
|
|
configOverride = "XDG_CONFIG_HOME"
|
|
configFilePath = "nvidia-container-runtime/config.toml"
|
|
)
|
|
|
|
var (
|
|
// DefaultExecutableDir specifies the default path to use for executables if they cannot be located in the path.
|
|
DefaultExecutableDir = "/usr/bin"
|
|
|
|
// NVIDIAContainerRuntimeHookExecutable is the executable name for the NVIDIA Container Runtime Hook
|
|
NVIDIAContainerRuntimeHookExecutable = "nvidia-container-runtime-hook"
|
|
// NVIDIAContainerToolkitExecutable is the executable name for the NVIDIA Container Toolkit (an alias for the NVIDIA Container Runtime Hook)
|
|
NVIDIAContainerToolkitExecutable = "nvidia-container-toolkit"
|
|
|
|
configDir = "/etc/"
|
|
)
|
|
|
|
// Config represents the contents of the config.toml file for the NVIDIA Container Toolkit
|
|
// Note: This is currently duplicated by the HookConfig in cmd/nvidia-container-toolkit/hook_config.go
|
|
type Config struct {
|
|
NVIDIAContainerCLIConfig ContainerCLIConfig `toml:"nvidia-container-cli"`
|
|
NVIDIACTKConfig CTKConfig `toml:"nvidia-ctk"`
|
|
NVIDIAContainerRuntimeConfig RuntimeConfig `toml:"nvidia-container-runtime"`
|
|
}
|
|
|
|
// GetConfig sets up the config struct. Values are read from a toml file
|
|
// or set via the environment.
|
|
func GetConfig() (*Config, error) {
|
|
if XDGConfigDir := os.Getenv(configOverride); len(XDGConfigDir) != 0 {
|
|
configDir = XDGConfigDir
|
|
}
|
|
|
|
configFilePath := path.Join(configDir, configFilePath)
|
|
|
|
tomlFile, err := os.Open(configFilePath)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to open config file %v: %v", configFilePath, err)
|
|
}
|
|
defer tomlFile.Close()
|
|
|
|
cfg, err := loadConfigFrom(tomlFile)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to read config values: %v", err)
|
|
}
|
|
|
|
return cfg, nil
|
|
}
|
|
|
|
// loadRuntimeConfigFrom reads the config from the specified Reader
|
|
func loadConfigFrom(reader io.Reader) (*Config, error) {
|
|
toml, err := toml.LoadReader(reader)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return getConfigFrom(toml), nil
|
|
}
|
|
|
|
// getConfigFrom reads the nvidia container runtime config from the specified toml Tree.
|
|
func getConfigFrom(toml *toml.Tree) *Config {
|
|
cfg := getDefaultConfig()
|
|
|
|
if toml == nil {
|
|
return cfg
|
|
}
|
|
|
|
cfg.NVIDIAContainerCLIConfig = *getContainerCLIConfigFrom(toml)
|
|
cfg.NVIDIACTKConfig = *getCTKConfigFrom(toml)
|
|
cfg.NVIDIAContainerRuntimeConfig = *getRuntimeConfigFrom(toml)
|
|
|
|
return cfg
|
|
}
|
|
|
|
// getDefaultConfig defines the default values for the config
|
|
func getDefaultConfig() *Config {
|
|
c := Config{
|
|
NVIDIAContainerCLIConfig: *getDefaultContainerCLIConfig(),
|
|
NVIDIACTKConfig: *getDefaultCTKConfig(),
|
|
NVIDIAContainerRuntimeConfig: *GetDefaultRuntimeConfig(),
|
|
}
|
|
|
|
return &c
|
|
}
|