Add a e2e test to check node limits

test/e2e/storage/BUILD

@@ -21,6 +21,7 @@ go_library(
         "regional_pd.go",
         "subpath.go",
         "volume_expand.go",
+        "volume_limits.go",
         "volume_metrics.go",
         "volume_provisioning.go",
         "volumes.go",
@@ -29,6 +30,7 @@ go_library(
     visibility = ["//visibility:public"],
     deps = [
         "//pkg/api/v1/pod:go_default_library",
+        "//pkg/apis/core/v1/helper:go_default_library",
         "//pkg/apis/storage/v1/util:go_default_library",
         "//pkg/client/conditions:go_default_library",
         "//pkg/kubelet/apis:go_default_library",

test/e2e/storage/volume_limits.go

@@ -0,0 +1,63 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package storage
+
+import (
+	. "github.com/onsi/ginkgo"
+	"k8s.io/api/core/v1"
+	clientset "k8s.io/client-go/kubernetes"
+	v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
+	"k8s.io/kubernetes/test/e2e/framework"
+	"k8s.io/kubernetes/test/e2e/storage/utils"
+)
+
+var _ = utils.SIGDescribe("Volume limits", func() {
+	var (
+		c clientset.Interface
+	)
+	f := framework.NewDefaultFramework("volume-limits-on-node")
+	BeforeEach(func() {
+		framework.SkipUnlessProviderIs("aws", "gce", "gke")
+		c = f.ClientSet
+		framework.ExpectNoError(framework.WaitForAllNodesSchedulable(c, framework.TestContext.NodeSchedulableTimeout))
+	})
+
+	It("should verify that all nodes have volume limits", func() {
+		nodeList := framework.GetReadySchedulableNodesOrDie(f.ClientSet)
+		if len(nodeList.Items) == 0 {
+			framework.Failf("Unable to find ready and schedulable Node")
+		}
+		for _, node := range nodeList.Items {
+			volumeLimits := getVolumeLimit(&node)
+			if len(volumeLimits) == 0 {
+				framework.Failf("Expected volume limits to be set")
+			}
+		}
+
+	})
+})
+
+func getVolumeLimit(node *v1.Node) map[v1.ResourceName]int64 {
+	volumeLimits := map[v1.ResourceName]int64{}
+	nodeAllocatables := node.Status.Allocatable
+	for k, v := range nodeAllocatables {
+		if v1helper.IsAttachableVolumeResourceName(k) {
+			volumeLimits[k] = v.Value()
+		}
+	}
+	return volumeLimits
+}