mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
//go:build !windows
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// +build !windows
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/*
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Copyright 2018 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 util
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import (
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"os"
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"path/filepath"
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"syscall"
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"github.com/pkg/errors"
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)
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// Chroot chroot()s to the new path.
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// NB: All file paths after this call are effectively relative to
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// `rootfs`
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func Chroot(rootfs string) error {
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if err := syscall.Chroot(rootfs); err != nil {
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return errors.Wrapf(err, "unable to chroot to %s", rootfs)
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}
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root := filepath.FromSlash("/")
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if err := os.Chdir(root); err != nil {
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return errors.Wrapf(err, "unable to chdir to %s", root)
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}
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return nil
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}
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