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
37
|
package daemon
import (
"errors"
"fmt"
"os"
"path/filepath"
"strings"
"testing"
"golang.org/x/sys/unix"
"gotest.tools/v3/assert"
)
func cleanupNetworkNamespace(t testing.TB, d *Daemon) {
t.Helper()
// Cleanup network namespaces in the exec root of this
// daemon because this exec root is specific to this
// daemon instance and has no chance of getting
// cleaned up when a new daemon is instantiated with a
// new exec root.
filepath.WalkDir(filepath.Join(d.execRoot, "netns"), func(path string, _ os.DirEntry, _ error) error {
if err := unix.Unmount(path, unix.MNT_DETACH); err != nil && !errors.Is(err, unix.EINVAL) && !errors.Is(err, unix.ENOENT) {
t.Logf("[%s] unmount of %s failed: %v", d.id, path, err)
}
os.Remove(path)
return nil
})
}
// CgroupNamespace returns the cgroup namespace the daemon is running in
func (d *Daemon) CgroupNamespace(t testing.TB) string {
link, err := os.Readlink(fmt.Sprintf("/proc/%d/ns/cgroup", d.Pid()))
assert.NilError(t, err)
return strings.TrimSpace(link)
}
|
