mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2025-06-26 18:18:24 +00:00
104 lines
2.4 KiB
Go
104 lines
2.4 KiB
Go
/**
|
|
# Copyright (c) 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 crio
|
|
|
|
import (
|
|
"fmt"
|
|
"os/exec"
|
|
|
|
"github.com/pelletier/go-toml"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
|
|
)
|
|
|
|
type builder struct {
|
|
logger logger.Interface
|
|
path string
|
|
hostRootMount string
|
|
}
|
|
|
|
// Option defines a function that can be used to configure the config builder
|
|
type Option func(*builder)
|
|
|
|
// WithLogger sets the logger for the config builder
|
|
func WithLogger(logger logger.Interface) Option {
|
|
return func(b *builder) {
|
|
b.logger = logger
|
|
}
|
|
}
|
|
|
|
// WithPath sets the path for the config builder
|
|
func WithPath(path string) Option {
|
|
return func(b *builder) {
|
|
b.path = path
|
|
}
|
|
}
|
|
|
|
// WithHostRootMount sets the host root mount for the config builder
|
|
func WithHostRootMount(hostRootMount string) Option {
|
|
return func(b *builder) {
|
|
b.hostRootMount = hostRootMount
|
|
}
|
|
}
|
|
|
|
func (b *builder) build() (*Config, error) {
|
|
if b.logger == nil {
|
|
b.logger = logger.New()
|
|
}
|
|
if b.path == "" {
|
|
empty := toml.Tree{}
|
|
c := Config{
|
|
Tree: &empty,
|
|
Logger: b.logger,
|
|
}
|
|
return &c, nil
|
|
}
|
|
|
|
return b.loadConfig()
|
|
}
|
|
|
|
// loadConfig loads the cri-o config from disk
|
|
func (b *builder) loadConfig() (*Config, error) {
|
|
|
|
var args []string
|
|
if b.hostRootMount != "" {
|
|
args = append(args, "chroot", b.hostRootMount)
|
|
}
|
|
args = append(args, "crio", "status", "config")
|
|
|
|
b.logger.Infof("Getting current crio config")
|
|
|
|
// TODO: Can we harden this so that there is less risk of command injection
|
|
cmd := exec.Command(args[0], args[1:]...)
|
|
output, err := cmd.Output()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error executing crio status command: %w", err)
|
|
}
|
|
tomlConfig, err := toml.LoadBytes(output)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error unmarshaling crio config toml: %w", err)
|
|
}
|
|
|
|
b.logger.Infof("Successfully loaded crio config")
|
|
|
|
c := Config{
|
|
Tree: tomlConfig,
|
|
Logger: b.logger,
|
|
}
|
|
return &c, nil
|
|
}
|