| package daemon // import "github.com/docker/docker/testutil/daemon" |
| |
| import ( |
| "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 && err != unix.EINVAL && 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) |
| } |