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Test a pod becoming schedulable when a scheduled pod is updated

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This commit is contained in:
Andrea Nodari 2020-06-16 18:04:23 +02:00
parent ad0bee482e
commit 0c23caf8e7
1 changed files with 48 additions and 0 deletions
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48
test/integration/scheduler/predicates_test.go
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@ -54,6 +54,7 @@ func TestInterPodAffinity(t *testing.T) {
"zone": "z11",
}
for _, node := range nodes {
// TODO(nodo): Use PodWrapper to directly initialize node with labels.
if err = utils.AddLabelsToNode(testCtx.ClientSet, node.Name, labels1); err != nil {
t.Fatalf("Cannot add labels to node: %v", err)
}
@ -895,6 +896,7 @@ func TestEvenPodsSpreadPredicate(t *testing.T) {
"zone": fmt.Sprintf("zone-%d", i/2),
"node": node.Name,
}
// TODO(nodo): Use PodWrapper to directly initialize node with labels.
if err = utils.AddLabelsToNode(cs, node.Name, labels); err != nil {
t.Fatalf("Cannot add labels to node: %v", err)
}
@ -1113,6 +1115,7 @@ func TestUnschedulablePodBecomesSchedulable(t *testing.T) {
if err != nil {
return fmt.Errorf("cannot create node: %v", err)
}
// TODO(nodo): Use PodWrapper to directly initialize node with labels.
if err := utils.AddLabelsToNode(cs, node.Name, map[string]string{"region": "test"}); err != nil {
return fmt.Errorf("cannot add labels to node: %v", err)
}
@ -1149,6 +1152,51 @@ func TestUnschedulablePodBecomesSchedulable(t *testing.T) {
return nil
},
},
{
name: "scheduled pod gets updated to match affinity",
init: func(cs kubernetes.Interface, ns string) error {
node, err := createNode(cs, "node-1", nil)
if err != nil {
return fmt.Errorf("cannot create node: %v", err)
}
// TODO(nodo): Use PodWrapper to directly initialize node with labels.
if err := utils.AddLabelsToNode(cs, node.Name, map[string]string{"region": "test"}); err != nil {
return fmt.Errorf("cannot add labels to node: %v", err)
}
if _, err := createPausePod(cs, initPausePod(&pausePodConfig{Name: "pod-to-be-updated", Namespace: ns})); err != nil {
return fmt.Errorf("cannot create pod: %v", err)
}
return nil
},
pod: &pausePodConfig{
Name: "pod-1",
Affinity: &v1.Affinity{
PodAffinity: &v1.PodAffinity{
RequiredDuringSchedulingIgnoredDuringExecution: []v1.PodAffinityTerm{
{
LabelSelector: &metav1.LabelSelector{
MatchLabels: map[string]string{
"pod-with-affinity": "true",
},
},
TopologyKey: "region",
},
},
},
},
},
update: func(cs kubernetes.Interface, ns string) error {
pod, err := getPod(cs, "pod-to-be-updated", ns)
if err != nil {
return fmt.Errorf("cannot get pod: %v", err)
}
pod.Labels = map[string]string{"pod-with-affinity": "true"}
if _, err := cs.CoreV1().Pods(pod.Namespace).Update(context.TODO(), pod, metav1.UpdateOptions{}); err != nil {
return fmt.Errorf("cannot update pod: %v", err)
}
return nil
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {