add status.podIPs in downward api

add host file write for podIPs

update tests

remove import alias

update type check

update type check

remove import alias

update open api spec

add tests

update test

add tests

address review comments

update imports

remove todo and import alias

pkg/kubelet/kubelet_pods_windows_test.go

@@ -84,7 +84,7 @@ func TestMakeMountsWindows(t *testing.T) {
 
 	fhu := hostutil.NewFakeHostUtil(nil)
 	fsp := &subpath.FakeSubpath{}
-	mounts, _, _ := makeMounts(&pod, "/pod", &container, "fakepodname", "", "", podVolumes, fhu, fsp, nil)
+	mounts, _, _ := makeMounts(&pod, "/pod", &container, "fakepodname", "", []string{""}, podVolumes, fhu, fsp, nil)
 
 	expectedMounts := []kubecontainer.Mount{
 		{