530 lines
18 KiB
Go
530 lines
18 KiB
Go
/*
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Copyright 2016 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 core
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import (
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"fmt"
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"testing"
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"time"
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testprovider "k8s.io/autoscaler/cluster-autoscaler/cloudprovider/test"
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"k8s.io/autoscaler/cluster-autoscaler/clusterstate"
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"k8s.io/autoscaler/cluster-autoscaler/clusterstate/utils"
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"k8s.io/autoscaler/cluster-autoscaler/simulator"
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"k8s.io/autoscaler/cluster-autoscaler/utils/deletetaint"
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scheduler_util "k8s.io/autoscaler/cluster-autoscaler/utils/scheduler"
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. "k8s.io/autoscaler/cluster-autoscaler/utils/test"
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apiv1 "k8s.io/api/core/v1"
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extensionsv1 "k8s.io/api/extensions/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/client-go/kubernetes/fake"
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core "k8s.io/client-go/testing"
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kube_record "k8s.io/client-go/tools/record"
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"k8s.io/kubernetes/pkg/api/testapi"
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kubeletapis "k8s.io/kubernetes/pkg/kubelet/apis"
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"github.com/stretchr/testify/assert"
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"k8s.io/kubernetes/plugin/pkg/scheduler/schedulercache"
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)
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func TestPodSchedulableMap(t *testing.T) {
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rc1 := apiv1.ReplicationController{
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ObjectMeta: metav1.ObjectMeta{
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Name: "rc1",
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Namespace: "default",
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SelfLink: testapi.Default.SelfLink("replicationcontrollers", "rc"),
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UID: "12345678-1234-1234-1234-123456789012",
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},
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}
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rc2 := apiv1.ReplicationController{
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ObjectMeta: metav1.ObjectMeta{
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Name: "rc2",
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Namespace: "default",
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SelfLink: testapi.Default.SelfLink("replicationcontrollers", "rc"),
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UID: "12345678-1234-1234-1234-12345678901a",
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},
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}
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pMap := make(podSchedulableMap)
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podInRc1_1 := BuildTestPod("podInRc1_1", 500, 1000)
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podInRc1_1.OwnerReferences = GenerateOwnerReferences(rc1.Name, "ReplicationController", "extensions/v1beta1", rc1.UID)
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podInRc2 := BuildTestPod("podInRc2", 500, 1000)
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podInRc2.OwnerReferences = GenerateOwnerReferences(rc2.Name, "ReplicationController", "extensions/v1beta1", rc2.UID)
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// Basic sanity checks
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_, found := pMap.get(podInRc1_1)
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assert.False(t, found)
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pMap.set(podInRc1_1, true)
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sched, found := pMap.get(podInRc1_1)
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assert.True(t, found)
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assert.True(t, sched)
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// Pod in different RC
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_, found = pMap.get(podInRc2)
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assert.False(t, found)
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pMap.set(podInRc2, false)
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sched, found = pMap.get(podInRc2)
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assert.True(t, found)
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assert.False(t, sched)
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// Another replica in rc1
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podInRc1_2 := BuildTestPod("podInRc1_1", 500, 1000)
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podInRc1_2.OwnerReferences = GenerateOwnerReferences(rc1.Name, "ReplicationController", "extensions/v1beta1", rc1.UID)
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sched, found = pMap.get(podInRc1_2)
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assert.True(t, found)
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assert.True(t, sched)
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// A pod in rc1, but with different requests
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differentPodInRc1 := BuildTestPod("differentPodInRc1", 1000, 1000)
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differentPodInRc1.OwnerReferences = GenerateOwnerReferences(rc1.Name, "ReplicationController", "extensions/v1beta1", rc1.UID)
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_, found = pMap.get(differentPodInRc1)
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assert.False(t, found)
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pMap.set(differentPodInRc1, false)
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sched, found = pMap.get(differentPodInRc1)
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assert.True(t, found)
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assert.False(t, sched)
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// A non-repliated pod
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nonReplicatedPod := BuildTestPod("nonReplicatedPod", 1000, 1000)
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_, found = pMap.get(nonReplicatedPod)
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assert.False(t, found)
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pMap.set(nonReplicatedPod, false)
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_, found = pMap.get(nonReplicatedPod)
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assert.False(t, found)
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// Verify information about first pod has not been overwritten by adding
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// other pods
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sched, found = pMap.get(podInRc1_1)
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assert.True(t, found)
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assert.True(t, sched)
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}
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func TestFilterOutSchedulable(t *testing.T) {
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rc1 := apiv1.ReplicationController{
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ObjectMeta: metav1.ObjectMeta{
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Name: "rc1",
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Namespace: "default",
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SelfLink: testapi.Default.SelfLink("replicationcontrollers", "rc"),
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UID: "12345678-1234-1234-1234-123456789012",
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},
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}
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rc2 := apiv1.ReplicationController{
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ObjectMeta: metav1.ObjectMeta{
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Name: "rc2",
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Namespace: "default",
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SelfLink: testapi.Default.SelfLink("replicationcontrollers", "rc"),
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UID: "12345678-1234-1234-1234-12345678901a",
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},
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}
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p1 := BuildTestPod("p1", 1500, 200000)
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p2_1 := BuildTestPod("p2_2", 3000, 200000)
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p2_1.OwnerReferences = GenerateOwnerReferences(rc1.Name, "ReplicationController", "extensions/v1beta1", rc1.UID)
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p2_2 := BuildTestPod("p2_2", 3000, 200000)
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p2_2.OwnerReferences = GenerateOwnerReferences(rc1.Name, "ReplicationController", "extensions/v1beta1", rc1.UID)
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p3_1 := BuildTestPod("p3", 100, 200000)
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p3_1.OwnerReferences = GenerateOwnerReferences(rc2.Name, "ReplicationController", "extensions/v1beta1", rc2.UID)
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p3_2 := BuildTestPod("p3", 100, 200000)
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p3_2.OwnerReferences = GenerateOwnerReferences(rc2.Name, "ReplicationController", "extensions/v1beta1", rc2.UID)
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unschedulablePods := []*apiv1.Pod{p1, p2_1, p2_2, p3_1, p3_2}
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scheduledPod1 := BuildTestPod("s1", 100, 200000)
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scheduledPod2 := BuildTestPod("s2", 1500, 200000)
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scheduledPod3 := BuildTestPod("s3", 4000, 200000)
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var priority1 int32 = 1
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scheduledPod3.Spec.Priority = &priority1
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scheduledPod1.Spec.NodeName = "node1"
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scheduledPod2.Spec.NodeName = "node1"
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scheduledPod2.Spec.NodeName = "node1"
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podWaitingForPreemption := BuildTestPod("w1", 1500, 200000)
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var priority100 int32 = 100
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podWaitingForPreemption.Spec.Priority = &priority100
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podWaitingForPreemption.Annotations = map[string]string{scheduler_util.NominatedNodeAnnotationKey: "node1"}
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node := BuildTestNode("node1", 2000, 2000000)
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SetNodeReadyState(node, true, time.Time{})
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predicateChecker := simulator.NewTestPredicateChecker()
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res := FilterOutSchedulable(unschedulablePods, []*apiv1.Node{node}, []*apiv1.Pod{scheduledPod1, scheduledPod3}, []*apiv1.Pod{}, predicateChecker, 10)
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assert.Equal(t, 2, len(res))
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assert.Equal(t, p2_1, res[0])
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assert.Equal(t, p2_2, res[1])
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res2 := FilterOutSchedulable(unschedulablePods, []*apiv1.Node{node}, []*apiv1.Pod{scheduledPod1, scheduledPod2, scheduledPod3}, []*apiv1.Pod{}, predicateChecker, 10)
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assert.Equal(t, 3, len(res2))
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assert.Equal(t, p1, res2[0])
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assert.Equal(t, p2_1, res2[1])
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assert.Equal(t, p2_2, res2[2])
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res3 := FilterOutSchedulable(unschedulablePods, []*apiv1.Node{node}, []*apiv1.Pod{scheduledPod1, scheduledPod3}, []*apiv1.Pod{podWaitingForPreemption}, predicateChecker, 10)
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assert.Equal(t, 3, len(res3))
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assert.Equal(t, p1, res3[0])
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assert.Equal(t, p2_1, res3[1])
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assert.Equal(t, p2_2, res3[2])
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}
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func TestFilterOutExpendableAndSplit(t *testing.T) {
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var priority1 int32 = 1
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var priority100 int32 = 100
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p1 := BuildTestPod("p1", 1000, 200000)
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p1.Spec.Priority = &priority1
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p2 := BuildTestPod("p2", 1000, 200000)
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p2.Spec.Priority = &priority100
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podWaitingForPreemption1 := BuildTestPod("w1", 1000, 200000)
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podWaitingForPreemption1.Spec.Priority = &priority1
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podWaitingForPreemption1.Annotations = map[string]string{scheduler_util.NominatedNodeAnnotationKey: "node1"}
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podWaitingForPreemption2 := BuildTestPod("w2", 1000, 200000)
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podWaitingForPreemption2.Spec.Priority = &priority100
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podWaitingForPreemption2.Annotations = map[string]string{scheduler_util.NominatedNodeAnnotationKey: "node1"}
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res1, res2 := FilterOutExpendableAndSplit([]*apiv1.Pod{p1, p2, podWaitingForPreemption1, podWaitingForPreemption2}, 0)
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assert.Equal(t, 2, len(res1))
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assert.Equal(t, p1, res1[0])
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assert.Equal(t, p2, res1[1])
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assert.Equal(t, 2, len(res2))
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assert.Equal(t, podWaitingForPreemption1, res2[0])
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assert.Equal(t, podWaitingForPreemption2, res2[1])
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res1, res2 = FilterOutExpendableAndSplit([]*apiv1.Pod{p1, p2, podWaitingForPreemption1, podWaitingForPreemption2}, 10)
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assert.Equal(t, 1, len(res1))
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assert.Equal(t, p2, res1[0])
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assert.Equal(t, 1, len(res2))
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assert.Equal(t, podWaitingForPreemption2, res2[0])
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}
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func TestFilterOutExpendablePods(t *testing.T) {
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p1 := BuildTestPod("p1", 1500, 200000)
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p2 := BuildTestPod("p2", 3000, 200000)
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podWaitingForPreemption1 := BuildTestPod("w1", 1500, 200000)
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var priority1 int32 = -10
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podWaitingForPreemption1.Spec.Priority = &priority1
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podWaitingForPreemption1.Annotations = map[string]string{scheduler_util.NominatedNodeAnnotationKey: "node1"}
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podWaitingForPreemption2 := BuildTestPod("w1", 1500, 200000)
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var priority2 int32 = 10
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podWaitingForPreemption2.Spec.Priority = &priority2
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podWaitingForPreemption2.Annotations = map[string]string{scheduler_util.NominatedNodeAnnotationKey: "node1"}
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res := FilterOutExpendablePods([]*apiv1.Pod{p1, p2, podWaitingForPreemption1, podWaitingForPreemption2}, 0)
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assert.Equal(t, 3, len(res))
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assert.Equal(t, p1, res[0])
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assert.Equal(t, p2, res[1])
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assert.Equal(t, podWaitingForPreemption2, res[2])
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}
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func TestGetNodeInfosForGroups(t *testing.T) {
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n1 := BuildTestNode("n1", 100, 1000)
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SetNodeReadyState(n1, true, time.Now())
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n2 := BuildTestNode("n2", 1000, 1000)
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SetNodeReadyState(n2, true, time.Now())
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n3 := BuildTestNode("n3", 1000, 1000)
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SetNodeReadyState(n3, false, time.Now())
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n4 := BuildTestNode("n4", 1000, 1000)
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SetNodeReadyState(n4, false, time.Now())
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p1 := BuildTestPod("p1", 80, 0)
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p2 := BuildTestPod("p2", 800, 0)
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p3 := BuildTestPod("p3", 800, 0)
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p1.Spec.NodeName = "n1"
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p2.Spec.NodeName = "n2"
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p3.Spec.NodeName = "n4"
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tn := BuildTestNode("T1-abc", 4000, 1000000)
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tni := schedulercache.NewNodeInfo()
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tni.SetNode(tn)
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// Cloud provider with TemplateNodeInfo implemented.
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provider1 := testprovider.NewTestAutoprovisioningCloudProvider(nil, nil,
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nil, nil,
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nil, map[string]*schedulercache.NodeInfo{"n3": tni, "n4": tni})
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provider1.AddNodeGroup("n1", 1, 10, 1) // Nodegroup with ready node.
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provider1.AddNodeGroup("n2", 1, 10, 1) // Nodegroup with ready and unready node.
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provider1.AddNodeGroup("n3", 1, 10, 1) // Nodegroup with unready node.
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provider1.AddNodeGroup("n4", 0, 1000, 0) // Nodegroup without nodes.
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provider1.AddNode("n1", n1)
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provider1.AddNode("n2", n2)
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provider1.AddNode("n2", n3)
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provider1.AddNode("n3", n4)
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// Cloud provider with TemplateNodeInfo not implemented.
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provider2 := testprovider.NewTestAutoprovisioningCloudProvider(nil, nil,
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nil, nil,
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nil, nil)
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provider2.AddNodeGroup("n5", 1, 10, 1) // Nodegroup without nodes.
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fakeClient := &fake.Clientset{}
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fakeClient.Fake.AddReactor("list", "pods", func(action core.Action) (bool, runtime.Object, error) {
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return true, &apiv1.PodList{Items: []apiv1.Pod{}}, nil
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})
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predicateChecker := simulator.NewTestPredicateChecker()
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res, err := GetNodeInfosForGroups([]*apiv1.Node{n1, n2, n3, n4}, provider1, fakeClient,
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[]*extensionsv1.DaemonSet{}, predicateChecker)
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assert.NoError(t, err)
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assert.Equal(t, 4, len(res))
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_, found := res["n1"]
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assert.True(t, found)
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_, found = res["n2"]
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assert.True(t, found)
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_, found = res["n3"]
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assert.True(t, found)
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_, found = res["n4"]
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assert.True(t, found)
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// Test for a nodegroup without nodes and TempleteNodeInfo not implemented by cloud proivder
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res, err = GetNodeInfosForGroups([]*apiv1.Node{}, provider2, fakeClient,
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[]*extensionsv1.DaemonSet{}, predicateChecker)
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assert.NoError(t, err)
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assert.Equal(t, 0, len(res))
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}
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func TestRemoveOldUnregisteredNodes(t *testing.T) {
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deletedNodes := make(chan string, 10)
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now := time.Now()
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ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
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ng1_1.Spec.ProviderID = "ng1-1"
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ng1_2 := BuildTestNode("ng1-2", 1000, 1000)
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ng1_2.Spec.ProviderID = "ng1-2"
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provider := testprovider.NewTestCloudProvider(nil, func(nodegroup string, node string) error {
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deletedNodes <- fmt.Sprintf("%s/%s", nodegroup, node)
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return nil
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})
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provider.AddNodeGroup("ng1", 1, 10, 2)
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provider.AddNode("ng1", ng1_1)
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provider.AddNode("ng1", ng1_2)
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fakeClient := &fake.Clientset{}
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fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false)
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clusterState := clusterstate.NewClusterStateRegistry(provider, clusterstate.ClusterStateRegistryConfig{
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MaxTotalUnreadyPercentage: 10,
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OkTotalUnreadyCount: 1,
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}, fakeLogRecorder)
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err := clusterState.UpdateNodes([]*apiv1.Node{ng1_1}, now.Add(-time.Hour))
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assert.NoError(t, err)
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context := &AutoscalingContext{
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AutoscalingOptions: AutoscalingOptions{
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UnregisteredNodeRemovalTime: 45 * time.Minute,
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},
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CloudProvider: provider,
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ClusterStateRegistry: clusterState,
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}
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unregisteredNodes := clusterState.GetUnregisteredNodes()
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assert.Equal(t, 1, len(unregisteredNodes))
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// Nothing should be removed. The unregistered node is not old enough.
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removed, err := removeOldUnregisteredNodes(unregisteredNodes, context, now.Add(-50*time.Minute), fakeLogRecorder)
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assert.NoError(t, err)
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assert.False(t, removed)
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// ng1_2 should be removed.
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removed, err = removeOldUnregisteredNodes(unregisteredNodes, context, now, fakeLogRecorder)
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assert.NoError(t, err)
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assert.True(t, removed)
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deletedNode := getStringFromChan(deletedNodes)
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assert.Equal(t, "ng1/ng1-2", deletedNode)
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}
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func TestSanitizeNodeInfo(t *testing.T) {
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pod := BuildTestPod("p1", 80, 0)
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pod.Spec.NodeName = "n1"
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node := BuildTestNode("node", 1000, 1000)
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nodeInfo := schedulercache.NewNodeInfo(pod)
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nodeInfo.SetNode(node)
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res, err := sanitizeNodeInfo(nodeInfo, "test-group")
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assert.NoError(t, err)
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assert.Equal(t, 1, len(res.Pods()))
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}
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func TestSanitizeLabels(t *testing.T) {
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oldNode := BuildTestNode("ng1-1", 1000, 1000)
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oldNode.Labels = map[string]string{
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kubeletapis.LabelHostname: "abc",
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"x": "y",
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}
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node, err := sanitizeTemplateNode(oldNode, "bzium")
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assert.NoError(t, err)
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assert.NotEqual(t, node.Labels[kubeletapis.LabelHostname], "abc")
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assert.Equal(t, node.Labels["x"], "y")
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assert.NotEqual(t, node.Name, oldNode.Name)
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assert.Equal(t, node.Labels[kubeletapis.LabelHostname], node.Name)
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}
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func TestSanitizeTaints(t *testing.T) {
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oldNode := BuildTestNode("ng1-1", 1000, 1000)
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taints := make([]apiv1.Taint, 0)
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taints = append(taints, apiv1.Taint{
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Key: ReschedulerTaintKey,
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Value: "test1",
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Effect: apiv1.TaintEffectNoSchedule,
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})
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taints = append(taints, apiv1.Taint{
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Key: "test-taint",
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Value: "test2",
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Effect: apiv1.TaintEffectNoSchedule,
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})
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taints = append(taints, apiv1.Taint{
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Key: deletetaint.ToBeDeletedTaint,
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Value: "1",
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Effect: apiv1.TaintEffectNoSchedule,
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})
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oldNode.Spec.Taints = taints
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node, err := sanitizeTemplateNode(oldNode, "bzium")
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assert.NoError(t, err)
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assert.Equal(t, len(node.Spec.Taints), 1)
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assert.Equal(t, node.Spec.Taints[0].Key, "test-taint")
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}
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func TestRemoveFixNodeTargetSize(t *testing.T) {
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sizeChanges := make(chan string, 10)
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now := time.Now()
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ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
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ng1_1.Spec.ProviderID = "ng1-1"
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provider := testprovider.NewTestCloudProvider(func(nodegroup string, delta int) error {
|
|
sizeChanges <- fmt.Sprintf("%s/%d", nodegroup, delta)
|
|
return nil
|
|
}, nil)
|
|
provider.AddNodeGroup("ng1", 1, 10, 3)
|
|
provider.AddNode("ng1", ng1_1)
|
|
|
|
fakeClient := &fake.Clientset{}
|
|
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false)
|
|
clusterState := clusterstate.NewClusterStateRegistry(provider, clusterstate.ClusterStateRegistryConfig{
|
|
MaxTotalUnreadyPercentage: 10,
|
|
OkTotalUnreadyCount: 1,
|
|
}, fakeLogRecorder)
|
|
err := clusterState.UpdateNodes([]*apiv1.Node{ng1_1}, now.Add(-time.Hour))
|
|
assert.NoError(t, err)
|
|
|
|
context := &AutoscalingContext{
|
|
AutoscalingOptions: AutoscalingOptions{
|
|
UnregisteredNodeRemovalTime: 45 * time.Minute,
|
|
},
|
|
CloudProvider: provider,
|
|
ClusterStateRegistry: clusterState,
|
|
}
|
|
|
|
// Nothing should be fixed. The incorrect size state is not old enough.
|
|
removed, err := fixNodeGroupSize(context, now.Add(-50*time.Minute))
|
|
assert.NoError(t, err)
|
|
assert.False(t, removed)
|
|
|
|
// Node group should be decreased.
|
|
removed, err = fixNodeGroupSize(context, now)
|
|
assert.NoError(t, err)
|
|
assert.True(t, removed)
|
|
change := getStringFromChan(sizeChanges)
|
|
assert.Equal(t, "ng1/-2", change)
|
|
}
|
|
|
|
func TestGetPotentiallyUnneededNodes(t *testing.T) {
|
|
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
|
|
ng1_2 := BuildTestNode("ng1-2", 1000, 1000)
|
|
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
|
|
noNg := BuildTestNode("no-ng", 1000, 1000)
|
|
provider := testprovider.NewTestCloudProvider(nil, nil)
|
|
provider.AddNodeGroup("ng1", 1, 10, 2)
|
|
provider.AddNodeGroup("ng2", 1, 10, 1)
|
|
provider.AddNode("ng1", ng1_1)
|
|
provider.AddNode("ng1", ng1_2)
|
|
provider.AddNode("ng2", ng2_1)
|
|
|
|
context := &AutoscalingContext{
|
|
CloudProvider: provider,
|
|
}
|
|
|
|
result := getPotentiallyUnneededNodes(context, []*apiv1.Node{ng1_1, ng1_2, ng2_1, noNg})
|
|
assert.Equal(t, 2, len(result))
|
|
ok1 := result[0].Name == "ng1-1" && result[1].Name == "ng1-2"
|
|
ok2 := result[1].Name == "ng1-1" && result[0].Name == "ng1-2"
|
|
assert.True(t, ok1 || ok2)
|
|
}
|
|
|
|
func TestConfigurePredicateCheckerForLoop(t *testing.T) {
|
|
p1 := BuildTestPod("p1", 500, 1000)
|
|
p1.Spec.Affinity = &apiv1.Affinity{}
|
|
p2 := BuildTestPod("p2", 500, 1000)
|
|
p3 := BuildTestPod("p3", 500, 1000)
|
|
|
|
predicateChecker := simulator.NewTestPredicateChecker()
|
|
|
|
predicateChecker.SetAffinityPredicateEnabled(false)
|
|
ConfigurePredicateCheckerForLoop([]*apiv1.Pod{p1}, []*apiv1.Pod{}, predicateChecker)
|
|
assert.True(t, predicateChecker.IsAffinityPredicateEnabled())
|
|
|
|
ConfigurePredicateCheckerForLoop([]*apiv1.Pod{}, []*apiv1.Pod{p1}, predicateChecker)
|
|
assert.True(t, predicateChecker.IsAffinityPredicateEnabled())
|
|
|
|
ConfigurePredicateCheckerForLoop([]*apiv1.Pod{p2}, []*apiv1.Pod{p3}, predicateChecker)
|
|
assert.False(t, predicateChecker.IsAffinityPredicateEnabled())
|
|
}
|
|
|
|
func TestGetNodeResource(t *testing.T) {
|
|
node := BuildTestNode("n1", 1000, 2*MB)
|
|
|
|
cores, err := getNodeResource(node, apiv1.ResourceCPU)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(1), cores)
|
|
|
|
memory, err := getNodeResource(node, apiv1.ResourceMemory)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(2*MB), memory)
|
|
|
|
_, err = getNodeResource(node, "custom resource")
|
|
assert.Error(t, err)
|
|
|
|
node.Status.Capacity = apiv1.ResourceList{}
|
|
|
|
_, err = getNodeResource(node, apiv1.ResourceCPU)
|
|
assert.Error(t, err)
|
|
|
|
_, err = getNodeResource(node, apiv1.ResourceMemory)
|
|
assert.Error(t, err)
|
|
}
|
|
|
|
func TestGetNodeCoresAndMemory(t *testing.T) {
|
|
node := BuildTestNode("n1", 2000, 2048*MB)
|
|
|
|
cores, memory, err := getNodeCoresAndMemory(node)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, int64(2), cores)
|
|
assert.Equal(t, int64(2048), memory)
|
|
|
|
node.Status.Capacity = apiv1.ResourceList{}
|
|
|
|
_, _, err = getNodeCoresAndMemory(node)
|
|
assert.Error(t, err)
|
|
}
|