Switch to loading busybox from gcr.

hack/e2e-suite/services.sh

@@ -280,8 +280,8 @@ function verify_from_container() {
   echo "waiting for $1 at $2:$3"
   results=($(ssh-to-node "${test_node}" "
       set -e;
-      sudo docker pull busybox >/dev/null;
-      sudo docker run busybox sh -c '
+      sudo docker pull gcr.io/google_containers/busybox >/dev/null;
+      sudo docker run gcr.io/google_containers/busybox sh -c '
           for i in $(seq -s' ' 1 $(($4*3))); do
             if wget -q -T 3 -O - http://$2:$3; then
               echo

test/e2e/persistent_volumes.go

@@ -172,7 +172,7 @@ func makeCheckPod(ns string, nfsserver string) *api.Pod {
 			Containers: []api.Container{
 				{
 					Name:    "scrub-checker",
-					Image:   "busybox",
+					Image:   "gcr.io/google_containers/busybox",
 					Command: []string{"/bin/sh"},
 					Args:    []string{"-c", "test ! -e /mnt/index.html || exit 1"},
 					VolumeMounts: []api.VolumeMount{

test/e2e/pre_stop.go

@@ -76,7 +76,7 @@ func testPreStop(c *client.Client, ns string) {
 			Containers: []api.Container{
 				{
 					Name:    "tester",
-					Image:   "busybox",
+					Image:   "gcr.io/google_containers/busybox",
 					Command: []string{"sleep", "600"},
 					Lifecycle: &api.Lifecycle{
 						PreStop: &api.Handler{