Seed math/rand in TestMain before tests are executed

test/integration/volume/main_test.go

@@ -17,11 +17,14 @@ limitations under the License.
 package volume
 
 import (
+	"math/rand"
 	"testing"
+	"time"
 
 	"k8s.io/kubernetes/test/integration/framework"
 )
 
 func TestMain(m *testing.M) {
+	rand.Seed(time.Now().UnixNano())
 	framework.EtcdMain(m.Run)
 }