1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
package volumes
import (
"os"
"path/filepath"
"testing"
"github.com/containers/storage/pkg/mount"
"github.com/stretchr/testify/require"
)
func TestBindFromChroot(t *testing.T) {
t.Parallel()
if os.Getuid() != 0 {
t.Skip("not running as root, assuming we can't mount or chroot")
}
contents1 := "file1"
contents2 := "file2"
rootdir := t.TempDir()
destdir := t.TempDir()
require.NoError(t, os.Mkdir(filepath.Join(rootdir, "subdirectory"), 0o700), "creating bind mount source directory")
require.NoError(t, os.WriteFile(filepath.Join(rootdir, "subdirectory", "file"), []byte(contents1), 0o600))
require.NoError(t, os.WriteFile(filepath.Join(rootdir, "file"), []byte(contents2), 0o600))
subdir, err := bindFromChroot(rootdir, "subdirectory", destdir)
require.NoError(t, err, "bind mounting from a directory")
bytes1, err := os.ReadFile(filepath.Join(subdir, "file"))
require.NoError(t, err, "reading file from bind-mounted directory")
subfile, err := bindFromChroot(rootdir, "file", destdir)
require.NoError(t, err, "bind mounting from a file")
bytes2, err := os.ReadFile(subfile)
require.NoError(t, err, "reading file from bind mounted file")
require.Equal(t, contents1, string(bytes1), "contents of file in bind-mounted directory")
require.Equal(t, contents2, string(bytes2), "contents of bind-mounted file")
require.NoError(t, mount.Unmount(subdir), "unmounting bind-mounted directory")
require.NoError(t, mount.Unmount(subfile), "unmounting bind-mounted file")
}
|
