Sok3t/descheduler
1
0
Fork 0
mirror of https://github.com/kubernetes-sigs/descheduler.git synced 2026-01-26 05:14:13 +01:00
Code Packages Releases Activity

e2e: separate tests for LowNodeUtilization strategy and evict annotation

Browse Source
This commit is contained in:
Jan Chaloupka
2020-07-13 14:50:58 +02:00
parent 7bb8b4feda
commit 327880ba51
1 changed files with 47 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
test/e2e/e2e_test.go
View File

@@ -143,44 +143,73 @@ func startEndToEndForLowNodeUtilization(ctx context.Context, clientset clientset
time.Sleep(10 * time.Second)
}
func TestE2E(t *testing.T) {
// If we have reached here, it means cluster would have been already setup and the kubeconfig file should
// be in /tmp directory as admin.conf.
func TestLowNodeUtilization(t *testing.T) {
ctx := context.Background()
clientSet, err := client.CreateClient(os.Getenv("KUBECONFIG"))
if err != nil {
t.Errorf("Error during client creation with %v", err)
}
stopChannel := make(chan struct{}, 0)
sharedInformerFactory := informers.NewSharedInformerFactory(clientSet, 0)
sharedInformerFactory.Start(stopChannel)
sharedInformerFactory.WaitForCacheSync(stopChannel)
defer close(stopChannel)
nodeInformer := sharedInformerFactory.Core().V1().Nodes()
nodeList, err := clientSet.CoreV1().Nodes().List(ctx, metav1.ListOptions{})
if err != nil {
t.Errorf("Error listing node with %v", err)
}
var nodes []*v1.Node
for i := range nodeList.Items {
node := nodeList.Items[i]
nodes = append(nodes, &node)
}
sharedInformerFactory := informers.NewSharedInformerFactory(clientSet, 0)
nodeInformer := sharedInformerFactory.Core().V1().Nodes()
rc := RcByNameContainer("test-rc-node-utilization", int32(15), map[string]string{"test": "node-utilization"}, nil)
if _, err := clientSet.CoreV1().ReplicationControllers(rc.Namespace).Create(ctx, rc, metav1.CreateOptions{}); err != nil {
t.Errorf("Error creating deployment %v", err)
}
evictPods(ctx, t, clientSet, nodeInformer, nodes, rc)
deleteRC(ctx, t, clientSet, rc)
}
func TestEvictAnnotation(t *testing.T) {
ctx := context.Background()
clientSet, err := client.CreateClient(os.Getenv("KUBECONFIG"))
if err != nil {
t.Errorf("Error during client creation with %v", err)
}
stopChannel := make(chan struct{}, 0)
sharedInformerFactory := informers.NewSharedInformerFactory(clientSet, 0)
sharedInformerFactory.Start(stopChannel)
sharedInformerFactory.WaitForCacheSync(stopChannel)
defer close(stopChannel)
// Assumption: We would have 3 node cluster by now. Kubeadm brings all the master components onto master node.
// So, the last node would have least utilization.
rc := RcByNameContainer("test-rc", int32(15), map[string]string{"test": "app"}, nil)
_, err = clientSet.CoreV1().ReplicationControllers("default").Create(ctx, rc, metav1.CreateOptions{})
if err != nil {
t.Errorf("Error creating deployment %v", err)
}
evictPods(ctx, t, clientSet, nodeInformer, nodes, rc)
deleteRC(ctx, t, clientSet, rc)
nodeInformer := sharedInformerFactory.Core().V1().Nodes()
nodeList, err := clientSet.CoreV1().Nodes().List(ctx, metav1.ListOptions{})
if err != nil {
t.Errorf("Error listing node with %v", err)
}
var nodes []*v1.Node
for i := range nodeList.Items {
node := nodeList.Items[i]
nodes = append(nodes, &node)
}
rc := RcByNameContainer("test-rc-evict-annotation", int32(15), map[string]string{"test": "annotation"}, nil)
rc.Spec.Template.Annotations = map[string]string{"descheduler.alpha.kubernetes.io/evict": "true"}
rc.Spec.Replicas = func(i int32) *int32 { return &i }(15)
rc.Spec.Template.Spec.Volumes = []v1.Volume{
{
Name: "sample",
@@ -190,10 +219,11 @@ func TestE2E(t *testing.T) {
},
},
}
_, err = clientSet.CoreV1().ReplicationControllers("default").Create(ctx, rc, metav1.CreateOptions{})
if err != nil {
if _, err := clientSet.CoreV1().ReplicationControllers(rc.Namespace).Create(ctx, rc, metav1.CreateOptions{}); err != nil {
t.Errorf("Error creating deployment %v", err)
}
evictPods(ctx, t, clientSet, nodeInformer, nodes, rc)
deleteRC(ctx, t, clientSet, rc)
}