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task_dir_linux.go
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/
task_dir_linux.go
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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package allocdir
import (
"fmt"
"os"
"path/filepath"
multierror "github.com/hashicorp/go-multierror"
)
// unmountSpecialDirs unmounts the dev and proc file system from the chroot. No
// error is returned if the directories do not exist or have already been
// unmounted.
func (t *TaskDir) unmountSpecialDirs() error {
errs := new(multierror.Error)
dev := filepath.Join(t.Dir, "dev")
if pathExists(dev) {
if err := unlinkDir(dev); err != nil {
errs = multierror.Append(errs, fmt.Errorf("Failed to unmount dev %q: %v", dev, err))
} else if err := os.RemoveAll(dev); err != nil {
errs = multierror.Append(errs, fmt.Errorf("Failed to delete dev directory %q: %v", dev, err))
}
}
// Unmount proc.
proc := filepath.Join(t.Dir, "proc")
if pathExists(proc) {
if err := unlinkDir(proc); err != nil {
errs = multierror.Append(errs, fmt.Errorf("Failed to unmount proc %q: %v", proc, err))
} else if err := os.RemoveAll(proc); err != nil {
errs = multierror.Append(errs, fmt.Errorf("Failed to delete proc directory %q: %v", dev, err))
}
}
return errs.ErrorOrNil()
}