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[storage] [test] Ensure proper resource creation

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Ensure resources are created in zone with schedulable
nodes. For example, if we have 4 zones with 3 zones
having worker nodes and 1 zone having master nodes(unscheduable
for workloads), we should not create resources like PV, PVC or
pods in that zone.
This commit is contained in:
ravisantoshgudimetla 2021-06-30 17:08:47 -04:00
parent 9c360b6185
commit 67bc23411b
2 changed files with 27 additions and 2 deletions
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25
test/e2e/framework/node/resource.go
View File

@ -561,6 +561,31 @@ func GetClusterZones(c clientset.Interface) (sets.String, error) {
return zones, nil
}
// GetSchedulableClusterZones returns the values of zone label collected from all nodes which are schedulable.
func GetSchedulableClusterZones(c clientset.Interface) (sets.String, error) {
nodes, err := c.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{})
if err != nil {
return nil, fmt.Errorf("Error getting nodes while attempting to list cluster zones: %v", err)
}
// collect values of zone label from all nodes
zones := sets.NewString()
for _, node := range nodes.Items {
// We should have at least 1 node in the zone which is schedulable.
if !IsNodeSchedulable(&node) {
continue
}
if zone, found := node.Labels[v1.LabelFailureDomainBetaZone]; found {
zones.Insert(zone)
}
if zone, found := node.Labels[v1.LabelTopologyZone]; found {
zones.Insert(zone)
}
}
return zones, nil
}
// CreatePodsPerNodeForSimpleApp creates pods w/ labels. Useful for tests which make a bunch of pods w/o any networking.
func CreatePodsPerNodeForSimpleApp(c clientset.Interface, namespace, appName string, podSpec func(n v1.Node) v1.PodSpec, maxCount int) map[string]string {
nodes, err := GetBoundedReadySchedulableNodes(c, maxCount)

4
test/e2e/storage/ubernetes_lite_volumes.go
View File

@ -54,7 +54,7 @@ var _ = utils.SIGDescribe("Multi-AZ Cluster Volumes", func() {
// Return the number of zones in which we have nodes in this cluster.
func getZoneCount(c clientset.Interface) (int, error) {
zoneNames, err := e2enode.GetClusterZones(c)
zoneNames, err := e2enode.GetSchedulableClusterZones(c)
if err != nil {
return -1, err
}
@ -75,7 +75,7 @@ func PodsUseStaticPVsOrFail(f *framework.Framework, podCount int, image string)
c := f.ClientSet
ns := f.Namespace.Name
zones, err := e2enode.GetClusterZones(c)
zones, err := e2enode.GetSchedulableClusterZones(c)
framework.ExpectNoError(err)
zonelist := zones.List()
ginkgo.By("Creating static PVs across zones")