nvidia-container-toolkit/internal/config/runtime.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 (
	"github.com/pelletier/go-toml"
)

// RuntimeConfig stores the config options for the NVIDIA Container Runtime
type RuntimeConfig struct {
	DebugFilePath string
	Experimental  bool
	DiscoverMode  string
}

// getRuntimeConfigFrom reads the nvidia container runtime config from the specified toml Tree.
func getRuntimeConfigFrom(toml *toml.Tree) *RuntimeConfig {
	cfg := getDefaultRuntimeConfig()

	if toml == nil {
		return cfg
	}

	cfg.DebugFilePath = toml.GetDefault("nvidia-container-runtime.debug", cfg.DebugFilePath).(string)
	cfg.Experimental = toml.GetDefault("nvidia-container-runtime.experimental", cfg.Experimental).(bool)
	cfg.DiscoverMode = toml.GetDefault("nvidia-container-runtime.discover-mode", cfg.DiscoverMode).(string)

	return cfg
}

// getDefaultRuntimeConfig defines the default values for the config
func getDefaultRuntimeConfig() *RuntimeConfig {
	c := RuntimeConfig{
		DebugFilePath: "/dev/null",
		Experimental:  false,
		DiscoverMode:  "legacy",
	}

	return &c
}