mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-30 21:30:16 +00:00
41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
// +build !windows
|
|
|
|
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
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 util
|
|
|
|
import (
|
|
"github.com/pkg/errors"
|
|
"os"
|
|
"path/filepath"
|
|
"syscall"
|
|
)
|
|
|
|
// Chroot chroot()s to the new path.
|
|
// NB: All file paths after this call are effectively relative to
|
|
// `rootfs`
|
|
func Chroot(rootfs string) error {
|
|
if err := syscall.Chroot(rootfs); err != nil {
|
|
return errors.Wrapf(err, "unable to chroot to %s", rootfs)
|
|
}
|
|
root := filepath.FromSlash("/")
|
|
if err := os.Chdir(root); err != nil {
|
|
return errors.Wrapf(err, "unable to chdir to %s", root)
|
|
}
|
|
return nil
|
|
}
|