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mirror of https://github.com/kubernetes-sigs/descheduler.git synced 2026-01-26 05:14:13 +01:00

pod anti-affinity check among nodes (#1033)

* pod anti-affinity check among nodes

* avoid pod equality check with UID field

also add node equality check with Name for short-cut

* add test case for anti-affinity violation among different node

* reduce ListPodsOnANode call

* fix old code

* apply gofumpt -w -extra

move klog/v2 import entry to bottom according to master code
This commit is contained in:
10hin
2023-06-05 21:21:25 +09:00
committed by GitHub
parent b58ec3b458
commit 877d9b18ee
2 changed files with 127 additions and 15 deletions

View File

@@ -38,19 +38,27 @@ import (
)
func TestPodAntiAffinity(t *testing.T) {
node1 := test.BuildTestNode("n1", 2000, 3000, 10, nil)
node1 := test.BuildTestNode("n1", 2000, 3000, 10, func(node *v1.Node) {
node.ObjectMeta.Labels = map[string]string{
"region": "main-region",
}
})
node2 := test.BuildTestNode("n2", 2000, 3000, 10, func(node *v1.Node) {
node.ObjectMeta.Labels = map[string]string{
"datacenter": "east",
}
})
node3 := test.BuildTestNode("n3", 2000, 3000, 10, func(node *v1.Node) {
node.Spec = v1.NodeSpec{
Unschedulable: true,
}
})
node4 := test.BuildTestNode("n4", 2, 2, 1, nil)
node5 := test.BuildTestNode("n5", 200, 3000, 10, func(node *v1.Node) {
node.ObjectMeta.Labels = map[string]string{
"region": "main-region",
}
})
p1 := test.BuildTestPod("p1", 100, 0, node1.Name, nil)
p2 := test.BuildTestPod("p2", 100, 0, node1.Name, nil)
@@ -62,6 +70,7 @@ func TestPodAntiAffinity(t *testing.T) {
p8 := test.BuildTestPod("p8", 100, 0, node1.Name, nil)
p9 := test.BuildTestPod("p9", 100, 0, node1.Name, nil)
p10 := test.BuildTestPod("p10", 100, 0, node1.Name, nil)
p11 := test.BuildTestPod("p11", 100, 0, node5.Name, nil)
p9.DeletionTimestamp = &metav1.Time{}
p10.DeletionTimestamp = &metav1.Time{}
@@ -73,6 +82,7 @@ func TestPodAntiAffinity(t *testing.T) {
p5.Labels = map[string]string{"foo": "bar"}
p6.Labels = map[string]string{"foo": "bar"}
p7.Labels = map[string]string{"foo1": "bar1"}
p11.Labels = map[string]string{"foo": "bar"}
nonEvictablePod.Labels = map[string]string{"foo": "bar"}
test.SetNormalOwnerRef(p1)
test.SetNormalOwnerRef(p2)
@@ -83,6 +93,7 @@ func TestPodAntiAffinity(t *testing.T) {
test.SetNormalOwnerRef(p7)
test.SetNormalOwnerRef(p9)
test.SetNormalOwnerRef(p10)
test.SetNormalOwnerRef(p11)
// set pod anti affinity
setPodAntiAffinity(p1, "foo", "bar")
@@ -186,6 +197,13 @@ func TestPodAntiAffinity(t *testing.T) {
expectedEvictedPodCount: 0,
nodeFit: true,
},
{
description: "Evict pod violating anti-affinity among different node (all pods have anti-affinity)",
pods: []*v1.Pod{p1, p11},
nodes: []*v1.Node{node1, node5},
expectedEvictedPodCount: 1,
nodeFit: false,
},
}
for _, test := range tests {