mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-23 00:38:26 +00:00
90 lines
2.3 KiB
Go
90 lines
2.3 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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"io"
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"os"
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"path"
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"github.com/pelletier/go-toml"
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)
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const (
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configOverride = "XDG_CONFIG_HOME"
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configFilePath = "nvidia-container-runtime/config.toml"
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)
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var (
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configDir = "/etc/"
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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
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Experimental bool
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}
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// GetRuntimeConfig sets up the config struct. Values are read from a toml file
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// or set via the environment.
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func GetRuntimeConfig() (*RuntimeConfig, error) {
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if XDGConfigDir := os.Getenv(configOverride); len(XDGConfigDir) != 0 {
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configDir = XDGConfigDir
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}
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configFilePath := path.Join(configDir, configFilePath)
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tomlFile, err := os.Open(configFilePath)
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if err != nil {
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return nil, fmt.Errorf("failed to open config file %v: %v", configFilePath, err)
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}
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defer tomlFile.Close()
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cfg, err := getRuntimeConfigFrom(tomlFile)
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if err != nil {
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return nil, fmt.Errorf("failed to read config values: %v", err)
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}
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return cfg, nil
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}
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// getRuntimeConfigFrom reads the config from the specified Reader
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func getRuntimeConfigFrom(reader io.Reader) (*RuntimeConfig, error) {
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toml, err := toml.LoadReader(reader)
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if err != nil {
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return nil, err
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}
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cfg := getDefaultRuntimeConfig()
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cfg.DebugFilePath = toml.GetDefault("nvidia-container-runtime.debug", cfg.DebugFilePath).(string)
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cfg.Experimental = toml.GetDefault("nvidia-container-runtime.experimental", cfg.Experimental).(bool)
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return cfg, 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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Experimental: false,
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}
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return &c
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}
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