376a94e039
Specifically: * Number of volumes in ActualStateofWorld and DesiredStateofWorld * Number of times ReconstructVolume Spec on kubelet failed
116 lines
3.5 KiB
Go
116 lines
3.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"testing"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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k8stypes "k8s.io/apimachinery/pkg/types"
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"k8s.io/kubernetes/pkg/kubelet/volumemanager/cache"
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"k8s.io/kubernetes/pkg/volume"
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volumetesting "k8s.io/kubernetes/pkg/volume/testing"
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"k8s.io/kubernetes/pkg/volume/util"
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)
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func TestMetricCollection(t *testing.T) {
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volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
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dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
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asw := cache.NewActualStateOfWorld(k8stypes.NodeName("node-name"), volumePluginMgr)
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod1",
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UID: "pod1uid",
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},
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "volume-name",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "fake-device1",
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},
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},
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},
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},
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},
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}
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volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
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podName := util.GetUniquePodName(pod)
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// Add one volume to DesiredStateOfWorld
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generatedVolumeName, err := dsw.AddPodToVolume(podName, pod, volumeSpec, volumeSpec.Name(), "")
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if err != nil {
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t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
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}
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mounter, err := fakePlugin.NewMounter(volumeSpec, pod, volume.VolumeOptions{})
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if err != nil {
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t.Fatalf("NewMounter failed. Expected: <no error> Actual: <%v>", err)
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}
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mapper, err := fakePlugin.NewBlockVolumeMapper(volumeSpec, pod, volume.VolumeOptions{})
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if err != nil {
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t.Fatalf("NewBlockVolumeMapper failed. Expected: <no error> Actual: <%v>", err)
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}
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// Add one volume to ActualStateOfWorld
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devicePath := "fake/device/path"
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err = asw.MarkVolumeAsAttached("", volumeSpec, "", devicePath)
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if err != nil {
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t.Fatalf("MarkVolumeAsAttached failed. Expected: <no error> Actual: <%v>", err)
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}
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err = asw.AddPodToVolume(
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podName, pod.UID, generatedVolumeName, mounter, mapper, volumeSpec.Name(), "", volumeSpec)
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if err != nil {
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t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
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}
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metricCollector := &totalVolumesCollector{asw, dsw, volumePluginMgr}
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// Check if getVolumeCount returns correct data
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count := metricCollector.getVolumeCount()
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if len(count) != 2 {
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t.Errorf("getVolumeCount failed. Expected <2> states, got <%d>", len(count))
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}
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dswCount, ok := count["desired_state_of_world"]
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if !ok {
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t.Errorf("getVolumeCount failed. Expected <desired_state_of_world>, got nothing")
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}
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fakePluginCount := dswCount["fake-plugin"]
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if fakePluginCount != 1 {
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t.Errorf("getVolumeCount failed. Expected <1> fake-plugin volume in DesiredStateOfWorld, got <%d>",
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fakePluginCount)
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}
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aswCount, ok := count["actual_state_of_world"]
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if !ok {
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t.Errorf("getVolumeCount failed. Expected <actual_state_of_world>, got nothing")
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}
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fakePluginCount = aswCount["fake-plugin"]
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if fakePluginCount != 1 {
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t.Errorf("getVolumeCount failed. Expected <1> fake-plugin volume in ActualStateOfWorld, got <%d>",
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fakePluginCount)
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}
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}
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