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clusterstate_test.go
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/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package clusterstate
import (
"fmt"
"testing"
"time"
"k8s.io/autoscaler/cluster-autoscaler/config"
"k8s.io/autoscaler/cluster-autoscaler/metrics"
"k8s.io/autoscaler/cluster-autoscaler/processors/nodegroupconfig"
apiv1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/autoscaler/cluster-autoscaler/cloudprovider"
testprovider "k8s.io/autoscaler/cluster-autoscaler/cloudprovider/test"
"k8s.io/autoscaler/cluster-autoscaler/clusterstate/api"
"k8s.io/autoscaler/cluster-autoscaler/clusterstate/utils"
"k8s.io/autoscaler/cluster-autoscaler/utils/taints"
. "k8s.io/autoscaler/cluster-autoscaler/utils/test"
"k8s.io/client-go/kubernetes/fake"
kube_record "k8s.io/client-go/tools/record"
"github.com/stretchr/testify/assert"
"k8s.io/autoscaler/cluster-autoscaler/utils/backoff"
)
// GetCloudProviderDeletedNodeNames returns a list of the names of nodes removed
// from cloud provider but registered in Kubernetes.
func GetCloudProviderDeletedNodeNames(csr *ClusterStateRegistry) []string {
csr.Lock()
defer csr.Unlock()
result := make([]string, 0, len(csr.deletedNodes))
for nodeName := range csr.deletedNodes {
result = append(result, nodeName)
}
return result
}
func TestOKWithScaleUp(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, true, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 5)
provider.AddNodeGroup("ng2", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng2", ng2_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: time.Minute}))
clusterstate.RegisterOrUpdateScaleUp(provider.GetNodeGroup("ng1"), 4, time.Now())
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.Empty(t, clusterstate.GetScaleUpFailures())
status := clusterstate.GetStatus(now)
assert.Equal(t, api.ClusterAutoscalerInProgress,
api.GetConditionByType(api.ClusterAutoscalerScaleUp, status.ClusterwideConditions).Status)
assert.Equal(t, 2, len(status.NodeGroupStatuses))
ng1Checked := false
ng2Checked := true
for _, nodeStatus := range status.NodeGroupStatuses {
if nodeStatus.ProviderID == "ng1" {
assert.Equal(t, api.ClusterAutoscalerInProgress,
api.GetConditionByType(api.ClusterAutoscalerScaleUp, nodeStatus.Conditions).Status)
ng1Checked = true
}
if nodeStatus.ProviderID == "ng2" {
assert.Equal(t, api.ClusterAutoscalerNoActivity,
api.GetConditionByType(api.ClusterAutoscalerScaleUp, nodeStatus.Conditions).Status)
ng2Checked = true
}
}
assert.True(t, ng1Checked)
assert.True(t, ng2Checked)
}
func TestEmptyOK(t *testing.T) {
now := time.Now()
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 0, 10, 0)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{}, nil, now.Add(-5*time.Second))
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.Empty(t, clusterstate.GetScaleUpFailures())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
assert.False(t, clusterstate.IsNodeGroupScalingUp("ng1"))
assert.False(t, clusterstate.HasNodeGroupStartedScaleUp("ng1"))
provider.AddNodeGroup("ng1", 0, 10, 3)
clusterstate.RegisterOrUpdateScaleUp(provider.GetNodeGroup("ng1"), 3, now.Add(-3*time.Second))
// clusterstate.scaleUpRequests["ng1"].Time = now.Add(-3 * time.Second)
// clusterstate.scaleUpRequests["ng1"].ExpectedAddTime = now.Add(1 * time.Minute)
err = clusterstate.UpdateNodes([]*apiv1.Node{}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
assert.True(t, clusterstate.IsNodeGroupScalingUp("ng1"))
assert.True(t, clusterstate.HasNodeGroupStartedScaleUp("ng1"))
}
func TestHasNodeGroupStartedScaleUp(t *testing.T) {
tests := map[string]struct {
initialSize int
delta int
}{
"Target size reverts back to zero": {
initialSize: 0,
delta: 3,
},
}
for tn, tc := range tests {
t.Run(tn, func(t *testing.T) {
now := time.Now()
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 0, 5, tc.initialSize)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{}, nil, now.Add(-5*time.Second))
assert.NoError(t, err)
assert.False(t, clusterstate.IsNodeGroupScalingUp("ng1"))
assert.False(t, clusterstate.HasNodeGroupStartedScaleUp("ng1"))
provider.AddNodeGroup("ng1", 0, 5, tc.initialSize+tc.delta)
clusterstate.RegisterOrUpdateScaleUp(provider.GetNodeGroup("ng1"), tc.delta, now.Add(-3*time.Second))
err = clusterstate.UpdateNodes([]*apiv1.Node{}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsNodeGroupScalingUp("ng1"))
assert.True(t, clusterstate.HasNodeGroupStartedScaleUp("ng1"))
provider.AddNodeGroup("ng1", 0, 5, tc.initialSize)
clusterstate.Recalculate()
assert.False(t, clusterstate.IsNodeGroupScalingUp("ng1"))
assert.True(t, clusterstate.HasNodeGroupStartedScaleUp("ng1"))
})
}
}
func TestOKOneUnreadyNode(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, false, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 1)
provider.AddNodeGroup("ng2", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng2", ng2_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.Empty(t, clusterstate.GetScaleUpFailures())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
status := clusterstate.GetStatus(now)
assert.Equal(t, api.ClusterAutoscalerHealthy,
api.GetConditionByType(api.ClusterAutoscalerHealth, status.ClusterwideConditions).Status)
assert.Equal(t, api.ClusterAutoscalerNoActivity,
api.GetConditionByType(api.ClusterAutoscalerScaleUp, status.ClusterwideConditions).Status)
assert.Equal(t, 2, len(status.NodeGroupStatuses))
ng1Checked := false
for _, nodeStatus := range status.NodeGroupStatuses {
if nodeStatus.ProviderID == "ng1" {
assert.Equal(t, api.ClusterAutoscalerHealthy,
api.GetConditionByType(api.ClusterAutoscalerHealth, nodeStatus.Conditions).Status)
ng1Checked = true
}
}
assert.True(t, ng1Checked)
}
func TestNodeWithoutNodeGroupDontCrash(t *testing.T) {
now := time.Now()
noNgNode := BuildTestNode("no_ng", 1000, 1000)
SetNodeReadyState(noNgNode, true, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNode("no_ng", noNgNode)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{noNgNode}, nil, now)
assert.NoError(t, err)
assert.Empty(t, clusterstate.GetScaleUpFailures())
clusterstate.UpdateScaleDownCandidates([]*apiv1.Node{noNgNode}, now)
}
func TestOKOneUnreadyNodeWithScaleDownCandidate(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, false, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 1)
provider.AddNodeGroup("ng2", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng2", ng2_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
clusterstate.UpdateScaleDownCandidates([]*apiv1.Node{ng1_1}, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.Empty(t, clusterstate.GetScaleUpFailures())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
status := clusterstate.GetStatus(now)
assert.Equal(t, api.ClusterAutoscalerHealthy,
api.GetConditionByType(api.ClusterAutoscalerHealth, status.ClusterwideConditions).Status)
assert.Equal(t, api.ClusterAutoscalerNoActivity,
api.GetConditionByType(api.ClusterAutoscalerScaleUp, status.ClusterwideConditions).Status)
assert.Equal(t, api.ClusterAutoscalerCandidatesPresent,
api.GetConditionByType(api.ClusterAutoscalerScaleDown, status.ClusterwideConditions).Status)
assert.Equal(t, 2, len(status.NodeGroupStatuses))
ng1Checked := false
ng2Checked := false
for _, nodeStatus := range status.NodeGroupStatuses {
if nodeStatus.ProviderID == "ng1" {
assert.Equal(t, api.ClusterAutoscalerHealthy,
api.GetConditionByType(api.ClusterAutoscalerHealth, nodeStatus.Conditions).Status)
assert.Equal(t, api.ClusterAutoscalerCandidatesPresent,
api.GetConditionByType(api.ClusterAutoscalerScaleDown, nodeStatus.Conditions).Status)
ng1Checked = true
}
if nodeStatus.ProviderID == "ng2" {
assert.Equal(t, api.ClusterAutoscalerHealthy,
api.GetConditionByType(api.ClusterAutoscalerHealth, nodeStatus.Conditions).Status)
assert.Equal(t, api.ClusterAutoscalerNoCandidates,
api.GetConditionByType(api.ClusterAutoscalerScaleDown, nodeStatus.Conditions).Status)
ng2Checked = true
}
}
assert.True(t, ng1Checked)
assert.True(t, ng2Checked)
}
func TestMissingNodes(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, true, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 5)
provider.AddNodeGroup("ng2", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng2", ng2_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.Empty(t, clusterstate.GetScaleUpFailures())
assert.False(t, clusterstate.IsNodeGroupHealthy("ng1"))
status := clusterstate.GetStatus(now)
assert.Equal(t, api.ClusterAutoscalerHealthy,
api.GetConditionByType(api.ClusterAutoscalerHealth, status.ClusterwideConditions).Status)
assert.Equal(t, 2, len(status.NodeGroupStatuses))
ng1Checked := false
for _, nodeStatus := range status.NodeGroupStatuses {
if nodeStatus.ProviderID == "ng1" {
assert.Equal(t, api.ClusterAutoscalerUnhealthy,
api.GetConditionByType(api.ClusterAutoscalerHealth, nodeStatus.Conditions).Status)
ng1Checked = true
}
}
assert.True(t, ng1Checked)
}
func TestTooManyUnready(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, false, now.Add(-time.Minute))
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, false, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 1)
provider.AddNodeGroup("ng2", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng2", ng2_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
assert.NoError(t, err)
assert.False(t, clusterstate.IsClusterHealthy())
assert.Empty(t, clusterstate.GetScaleUpFailures())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
}
func TestUnreadyLongAfterCreation(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, false, now.Add(-time.Minute))
ng2_1.CreationTimestamp = metav1.Time{Time: now.Add(-30 * time.Minute)}
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 1)
provider.AddNodeGroup("ng2", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng2", ng2_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "some-map")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 1, len(clusterstate.GetClusterReadiness().Unready))
assert.Equal(t, 0, len(clusterstate.GetClusterReadiness().NotStarted))
upcoming, upcomingRegistered := clusterstate.GetUpcomingNodes()
assert.Equal(t, 0, upcoming["ng1"])
assert.Empty(t, upcomingRegistered["ng1"])
}
func TestNotStarted(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, false, now.Add(-4*time.Minute))
SetNodeNotReadyTaint(ng2_1)
ng2_1.CreationTimestamp = metav1.Time{Time: now.Add(-10 * time.Minute)}
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 1)
provider.AddNodeGroup("ng2", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng2", ng2_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "some-map")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 1, len(clusterstate.GetClusterReadiness().NotStarted))
assert.Equal(t, 1, len(clusterstate.GetClusterReadiness().Ready))
// node ng2_1 moves condition to ready
SetNodeReadyState(ng2_1, true, now.Add(-4*time.Minute))
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 1, len(clusterstate.GetClusterReadiness().NotStarted))
assert.Equal(t, 1, len(clusterstate.GetClusterReadiness().Ready))
// node ng2_1 no longer has the taint
RemoveNodeNotReadyTaint(ng2_1)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 0, len(clusterstate.GetClusterReadiness().NotStarted))
assert.Equal(t, 2, len(clusterstate.GetClusterReadiness().Ready))
}
func TestExpiredScaleUp(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 5)
provider.AddNode("ng1", ng1_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 2 * time.Minute}))
clusterstate.RegisterOrUpdateScaleUp(provider.GetNodeGroup("ng1"), 4, now.Add(-3*time.Minute))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.False(t, clusterstate.IsNodeGroupHealthy("ng1"))
assert.Equal(t, clusterstate.GetScaleUpFailures(), map[string][]ScaleUpFailure{
"ng1": {
{NodeGroup: provider.GetNodeGroup("ng1"), Time: now, Reason: metrics.Timeout},
},
})
}
func TestRegisterScaleDown(t *testing.T) {
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
now := time.Now()
clusterstate.RegisterScaleDown(&ScaleDownRequest{
NodeGroup: provider.GetNodeGroup("ng1"),
NodeName: "ng1-1",
ExpectedDeleteTime: now.Add(time.Minute),
Time: now,
})
assert.Equal(t, 1, len(clusterstate.scaleDownRequests))
clusterstate.updateScaleRequests(now.Add(5 * time.Minute))
assert.Equal(t, 0, len(clusterstate.scaleDownRequests))
assert.Empty(t, clusterstate.GetScaleUpFailures())
}
func TestUpcomingNodes(t *testing.T) {
provider := testprovider.NewTestCloudProvider(nil, nil)
now := time.Now()
// 6 nodes are expected to come.
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
provider.AddNodeGroup("ng1", 1, 10, 7)
provider.AddNode("ng1", ng1_1)
// One node is expected to come. One node is unready for the long time
// but this should not make any difference.
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, false, now.Add(-time.Minute))
provider.AddNodeGroup("ng2", 1, 10, 2)
provider.AddNode("ng2", ng2_1)
// Two nodes are expected to come. One is just being started for the first time,
// the other one is not there yet.
ng3_1 := BuildTestNode("ng3-1", 1000, 1000)
SetNodeReadyState(ng3_1, false, now.Add(-time.Minute))
ng3_1.CreationTimestamp = metav1.Time{Time: now.Add(-time.Minute)}
provider.AddNodeGroup("ng3", 1, 10, 2)
provider.AddNode("ng3", ng3_1)
// Nothing should be added here.
ng4_1 := BuildTestNode("ng4-1", 1000, 1000)
SetNodeReadyState(ng4_1, false, now.Add(-time.Minute))
provider.AddNodeGroup("ng4", 1, 10, 1)
provider.AddNode("ng4", ng4_1)
// One node is already there, for a second nde deletion / draining was already started.
ng5_1 := BuildTestNode("ng5-1", 1000, 1000)
SetNodeReadyState(ng5_1, true, now.Add(-time.Minute))
ng5_2 := BuildTestNode("ng5-2", 1000, 1000)
SetNodeReadyState(ng5_2, true, now.Add(-time.Minute))
ng5_2.Spec.Taints = []apiv1.Taint{
{
Key: taints.ToBeDeletedTaint,
Value: fmt.Sprint(time.Now().Unix()),
Effect: apiv1.TaintEffectNoSchedule,
},
}
provider.AddNodeGroup("ng5", 1, 10, 2)
provider.AddNode("ng5", ng5_1)
provider.AddNode("ng5", ng5_2)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1, ng3_1, ng4_1, ng5_1, ng5_2}, nil, now)
assert.NoError(t, err)
assert.Empty(t, clusterstate.GetScaleUpFailures())
upcomingNodes, upcomingRegistered := clusterstate.GetUpcomingNodes()
assert.Equal(t, 6, upcomingNodes["ng1"])
assert.Empty(t, upcomingRegistered["ng1"]) // Only unregistered.
assert.Equal(t, 1, upcomingNodes["ng2"])
assert.Empty(t, upcomingRegistered["ng2"]) // Only unregistered.
assert.Equal(t, 2, upcomingNodes["ng3"])
assert.Equal(t, []string{"ng3-1"}, upcomingRegistered["ng3"]) // 1 registered, 1 unregistered.
assert.NotContains(t, upcomingNodes, "ng4")
assert.NotContains(t, upcomingRegistered, "ng4")
assert.Equal(t, 0, upcomingNodes["ng5"])
assert.Empty(t, upcomingRegistered["ng5"])
}
func TestTaintBasedNodeDeletion(t *testing.T) {
// Create a new Cloud Provider that does not implement the HasInstance check
// it will return the ErrNotImplemented error instead.
provider := testprovider.NewTestNodeDeletionDetectionCloudProvider(nil, nil,
func(string) (bool, error) { return false, cloudprovider.ErrNotImplemented })
now := time.Now()
// One node is already there, for a second nde deletion / draining was already started.
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng1_2 := BuildTestNode("ng1-2", 1000, 1000)
SetNodeReadyState(ng1_2, true, now.Add(-time.Minute))
ng1_2.Spec.Taints = []apiv1.Taint{
{
Key: taints.ToBeDeletedTaint,
Value: fmt.Sprint(time.Now().Unix()),
Effect: apiv1.TaintEffectNoSchedule,
},
}
provider.AddNodeGroup("ng1", 1, 10, 2)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng1", ng1_2)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_2}, nil, now)
assert.NoError(t, err)
assert.Empty(t, clusterstate.GetScaleUpFailures())
upcomingNodes, upcomingRegistered := clusterstate.GetUpcomingNodes()
assert.Equal(t, 1, upcomingNodes["ng1"])
assert.Empty(t, upcomingRegistered["ng1"]) // Only unregistered.
}
func TestIncorrectSize(t *testing.T) {
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 5)
provider.AddNode("ng1", ng1_1)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
now := time.Now()
clusterstate.UpdateNodes([]*apiv1.Node{ng1_1}, nil, now.Add(-5*time.Minute))
incorrect := clusterstate.incorrectNodeGroupSizes["ng1"]
assert.Equal(t, 5, incorrect.ExpectedSize)
assert.Equal(t, 1, incorrect.CurrentSize)
assert.Equal(t, now.Add(-5*time.Minute), incorrect.FirstObserved)
clusterstate.UpdateNodes([]*apiv1.Node{ng1_1}, nil, now.Add(-4*time.Minute))
incorrect = clusterstate.incorrectNodeGroupSizes["ng1"]
assert.Equal(t, 5, incorrect.ExpectedSize)
assert.Equal(t, 1, incorrect.CurrentSize)
assert.Equal(t, now.Add(-5*time.Minute), incorrect.FirstObserved)
clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_1}, nil, now.Add(-3*time.Minute))
incorrect = clusterstate.incorrectNodeGroupSizes["ng1"]
assert.Equal(t, 5, incorrect.ExpectedSize)
assert.Equal(t, 2, incorrect.CurrentSize)
assert.Equal(t, now.Add(-3*time.Minute), incorrect.FirstObserved)
}
func TestUnregisteredNodes(t *testing.T) {
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
ng1_1.Spec.ProviderID = "ng1-1"
ng1_2 := BuildTestNode("ng1-2", 1000, 1000)
ng1_2.Spec.ProviderID = "ng1-2"
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 2)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng1", ng1_2)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 10 * time.Second}))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1}, nil, time.Now().Add(-time.Minute))
assert.NoError(t, err)
assert.Equal(t, 1, len(clusterstate.GetUnregisteredNodes()))
assert.Equal(t, "ng1-2", clusterstate.GetUnregisteredNodes()[0].Node.Name)
upcomingNodes, upcomingRegistered := clusterstate.GetUpcomingNodes()
assert.Equal(t, 1, upcomingNodes["ng1"])
assert.Empty(t, upcomingRegistered["ng1"]) // Unregistered only.
// The node didn't come up in MaxNodeProvisionTime, it should no longer be
// counted as upcoming (but it is still an unregistered node)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1}, nil, time.Now().Add(time.Minute))
assert.NoError(t, err)
assert.Equal(t, 1, len(clusterstate.GetUnregisteredNodes()))
assert.Equal(t, "ng1-2", clusterstate.GetUnregisteredNodes()[0].Node.Name)
upcomingNodes, upcomingRegistered = clusterstate.GetUpcomingNodes()
assert.Equal(t, 0, len(upcomingNodes))
assert.Empty(t, upcomingRegistered["ng1"])
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_2}, nil, time.Now().Add(time.Minute))
assert.NoError(t, err)
assert.Equal(t, 0, len(clusterstate.GetUnregisteredNodes()))
}
func TestCloudProviderDeletedNodes(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng1_1.Spec.ProviderID = "ng1-1"
ng1_2 := BuildTestNode("ng1-2", 1000, 1000)
SetNodeReadyState(ng1_2, true, now.Add(-time.Minute))
ng1_2.Spec.ProviderID = "ng1-2"
// No Node Group - Not Autoscaled Node
noNgNode := BuildTestNode("no-ng", 1000, 1000)
SetNodeReadyState(noNgNode, true, now.Add(-time.Minute))
noNgNode.Spec.ProviderID = "no-ng"
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 2)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng1", ng1_2)
provider.AddNode("no_ng", noNgNode)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 10 * time.Second}))
now.Add(time.Minute)
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_2, noNgNode}, nil, now)
// Nodes are registered correctly between Kubernetes and cloud provider.
assert.NoError(t, err)
assert.Equal(t, 0, len(GetCloudProviderDeletedNodeNames(clusterstate)))
// The node was removed from Cloud Provider
// should be counted as Deleted by cluster state
nodeGroup, err := provider.NodeGroupForNode(ng1_2)
assert.NoError(t, err)
provider.DeleteNode(ng1_2)
clusterstate.InvalidateNodeInstancesCacheEntry(nodeGroup)
now.Add(time.Minute)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_2, noNgNode}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 1, len(GetCloudProviderDeletedNodeNames(clusterstate)))
assert.Equal(t, "ng1-2", GetCloudProviderDeletedNodeNames(clusterstate)[0])
assert.Equal(t, 1, len(clusterstate.GetClusterReadiness().Deleted))
// The node is removed from Kubernetes
now.Add(time.Minute)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, noNgNode}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 0, len(GetCloudProviderDeletedNodeNames(clusterstate)))
// New Node is added afterwards
ng1_3 := BuildTestNode("ng1-3", 1000, 1000)
SetNodeReadyState(ng1_3, true, now.Add(-time.Minute))
ng1_3.Spec.ProviderID = "ng1-3"
provider.AddNode("ng1", ng1_3)
clusterstate.InvalidateNodeInstancesCacheEntry(nodeGroup)
now.Add(time.Minute)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_3, noNgNode}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 0, len(GetCloudProviderDeletedNodeNames(clusterstate)))
// Newly added node is removed from Cloud Provider
// should be counted as Deleted by cluster state
nodeGroup, err = provider.NodeGroupForNode(ng1_3)
assert.NoError(t, err)
provider.DeleteNode(ng1_3)
clusterstate.InvalidateNodeInstancesCacheEntry(nodeGroup)
now.Add(time.Minute)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, noNgNode, ng1_3}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 1, len(GetCloudProviderDeletedNodeNames(clusterstate)))
assert.Equal(t, "ng1-3", GetCloudProviderDeletedNodeNames(clusterstate)[0])
assert.Equal(t, 1, len(clusterstate.GetClusterReadiness().Deleted))
// Confirm that previously identified deleted Cloud Provider nodes are still included
// until it is removed from Kubernetes
now.Add(time.Minute)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, noNgNode, ng1_3}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 1, len(GetCloudProviderDeletedNodeNames(clusterstate)))
assert.Equal(t, "ng1-3", GetCloudProviderDeletedNodeNames(clusterstate)[0])
assert.Equal(t, 1, len(clusterstate.GetClusterReadiness().Deleted))
// The node is removed from Kubernetes
now.Add(time.Minute)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, noNgNode}, nil, now)
assert.NoError(t, err)
assert.Equal(t, 0, len(GetCloudProviderDeletedNodeNames(clusterstate)))
}
func TestUpdateLastTransitionTimes(t *testing.T) {
now := metav1.Time{Time: time.Now()}
later := metav1.Time{Time: now.Time.Add(10 * time.Second)}
oldStatus := &api.ClusterAutoscalerStatus{
ClusterwideConditions: make([]api.ClusterAutoscalerCondition, 0),
NodeGroupStatuses: make([]api.NodeGroupStatus, 0),
}
oldStatus.ClusterwideConditions = append(
oldStatus.ClusterwideConditions,
api.ClusterAutoscalerCondition{
Type: api.ClusterAutoscalerHealth,
Status: api.ClusterAutoscalerHealthy,
LastProbeTime: now,
LastTransitionTime: now,
})
oldStatus.ClusterwideConditions = append(
oldStatus.ClusterwideConditions,
api.ClusterAutoscalerCondition{
Type: api.ClusterAutoscalerScaleUp,
Status: api.ClusterAutoscalerInProgress,
LastProbeTime: now,
LastTransitionTime: now,
})
oldStatus.NodeGroupStatuses = append(
oldStatus.NodeGroupStatuses,
api.NodeGroupStatus{
ProviderID: "ng1",
Conditions: oldStatus.ClusterwideConditions,
})
newStatus := &api.ClusterAutoscalerStatus{
ClusterwideConditions: make([]api.ClusterAutoscalerCondition, 0),
NodeGroupStatuses: make([]api.NodeGroupStatus, 0),
}
newStatus.ClusterwideConditions = append(
newStatus.ClusterwideConditions,
api.ClusterAutoscalerCondition{
Type: api.ClusterAutoscalerHealth,
Status: api.ClusterAutoscalerHealthy,
LastProbeTime: later,
})
newStatus.ClusterwideConditions = append(
newStatus.ClusterwideConditions,
api.ClusterAutoscalerCondition{
Type: api.ClusterAutoscalerScaleUp,
Status: api.ClusterAutoscalerNotNeeded,
LastProbeTime: later,
})
newStatus.ClusterwideConditions = append(
newStatus.ClusterwideConditions,
api.ClusterAutoscalerCondition{
Type: api.ClusterAutoscalerScaleDown,
Status: api.ClusterAutoscalerNoCandidates,
LastProbeTime: later,
})
newStatus.NodeGroupStatuses = append(
newStatus.NodeGroupStatuses,
api.NodeGroupStatus{
ProviderID: "ng2",
Conditions: newStatus.ClusterwideConditions,
})
newStatus.NodeGroupStatuses = append(
newStatus.NodeGroupStatuses,
api.NodeGroupStatus{
ProviderID: "ng1",
Conditions: newStatus.ClusterwideConditions,
})
updateLastTransition(oldStatus, newStatus)
for _, cwCondition := range newStatus.ClusterwideConditions {
switch cwCondition.Type {
case api.ClusterAutoscalerHealth:
// Status has not changed
assert.Equal(t, now, cwCondition.LastTransitionTime)
case api.ClusterAutoscalerScaleUp:
// Status has changed
assert.Equal(t, later, cwCondition.LastTransitionTime)
case api.ClusterAutoscalerScaleDown:
// No old status information
assert.Equal(t, later, cwCondition.LastTransitionTime)
}
}
expectedNgTimestamps := make(map[string]map[api.ClusterAutoscalerConditionType]metav1.Time, 0)
// Same as cluster-wide
expectedNgTimestamps["ng1"] = map[api.ClusterAutoscalerConditionType]metav1.Time{
api.ClusterAutoscalerHealth: now,
api.ClusterAutoscalerScaleUp: later,
api.ClusterAutoscalerScaleDown: later,
}
// New node group - everything should have latest timestamp as last transition time
expectedNgTimestamps["ng2"] = map[api.ClusterAutoscalerConditionType]metav1.Time{
api.ClusterAutoscalerHealth: later,
api.ClusterAutoscalerScaleUp: later,
api.ClusterAutoscalerScaleDown: later,
}
for _, ng := range newStatus.NodeGroupStatuses {
expectations := expectedNgTimestamps[ng.ProviderID]
for _, ngCondition := range ng.Conditions {
assert.Equal(t, expectations[ngCondition.Type], ngCondition.LastTransitionTime)
}
}
}
func TestScaleUpBackoff(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng1_2 := BuildTestNode("ng1-2", 1000, 1000)
SetNodeReadyState(ng1_2, true, now.Add(-time.Minute))
ng1_3 := BuildTestNode("ng1-3", 1000, 1000)
SetNodeReadyState(ng1_3, true, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 4)
ng1 := provider.GetNodeGroup("ng1")
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng1", ng1_2)
provider.AddNode("ng1", ng1_3)
assert.NotNil(t, provider)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 120 * time.Second}))
// After failed scale-up, node group should be still healthy, but should backoff from scale-ups
clusterstate.RegisterOrUpdateScaleUp(provider.GetNodeGroup("ng1"), 1, now.Add(-180*time.Second))
err := clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_2, ng1_3}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
assert.False(t, clusterstate.IsNodeGroupSafeToScaleUp(ng1, now))
// Backoff should expire after timeout
now = now.Add(5 * time.Minute /*InitialNodeGroupBackoffDuration*/).Add(time.Second)
assert.True(t, clusterstate.IsClusterHealthy())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
assert.True(t, clusterstate.IsNodeGroupSafeToScaleUp(ng1, now))
// Another failed scale up should cause longer backoff
clusterstate.RegisterOrUpdateScaleUp(provider.GetNodeGroup("ng1"), 1, now.Add(-121*time.Second))
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_2, ng1_3}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
assert.False(t, clusterstate.IsNodeGroupSafeToScaleUp(ng1, now))
now = now.Add(5 * time.Minute /*InitialNodeGroupBackoffDuration*/).Add(time.Second)
assert.False(t, clusterstate.IsNodeGroupSafeToScaleUp(ng1, now))
// The backoff should be cleared after a successful scale-up
clusterstate.RegisterOrUpdateScaleUp(provider.GetNodeGroup("ng1"), 1, now)
ng1_4 := BuildTestNode("ng1-4", 1000, 1000)
SetNodeReadyState(ng1_4, true, now.Add(-1*time.Minute))
provider.AddNode("ng1", ng1_4)
err = clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_2, ng1_3, ng1_4}, nil, now)
assert.NoError(t, err)
assert.True(t, clusterstate.IsClusterHealthy())
assert.True(t, clusterstate.IsNodeGroupHealthy("ng1"))
assert.True(t, clusterstate.IsNodeGroupSafeToScaleUp(ng1, now))
assert.False(t, clusterstate.backoff.IsBackedOff(ng1, nil, now))
}
func TestGetClusterSize(t *testing.T) {
now := time.Now()
ng1_1 := BuildTestNode("ng1-1", 1000, 1000)
SetNodeReadyState(ng1_1, true, now.Add(-time.Minute))
ng2_1 := BuildTestNode("ng2-1", 1000, 1000)
SetNodeReadyState(ng2_1, true, now.Add(-time.Minute))
notAutoscaledNode := BuildTestNode("notAutoscaledNode", 1000, 1000)
SetNodeReadyState(notAutoscaledNode, true, now.Add(-time.Minute))
provider := testprovider.NewTestCloudProvider(nil, nil)
provider.AddNodeGroup("ng1", 1, 10, 5)
provider.AddNodeGroup("ng2", 1, 10, 1)
provider.AddNode("ng1", ng1_1)
provider.AddNode("ng2", ng2_1)
// Add a node not belonging to any autoscaled node group. This is to make sure that GetAutoscaledNodesCount doesn't
// take nodes from non-autoscaled node groups into account.
provider.AddNode("notAutoscaledNode", notAutoscaledNode)
fakeClient := &fake.Clientset{}
fakeLogRecorder, _ := utils.NewStatusMapRecorder(fakeClient, "kube-system", kube_record.NewFakeRecorder(5), false, "my-cool-configmap")
clusterstate := NewClusterStateRegistry(provider, ClusterStateRegistryConfig{
MaxTotalUnreadyPercentage: 10,
OkTotalUnreadyCount: 1,
}, fakeLogRecorder, newBackoff(), nodegroupconfig.NewDefaultNodeGroupConfigProcessor(config.NodeGroupAutoscalingOptions{MaxNodeProvisionTime: 15 * time.Minute}))
// There are 2 actual nodes in 2 node groups with target sizes of 5 and 1.
clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng2_1, notAutoscaledNode}, nil, now)
currentSize, targetSize := clusterstate.GetAutoscaledNodesCount()
assert.Equal(t, 2, currentSize)
assert.Equal(t, 6, targetSize)
// Current size should increase after a new node is added.
clusterstate.UpdateNodes([]*apiv1.Node{ng1_1, ng1_1, notAutoscaledNode, ng2_1}, nil, now.Add(time.Minute))
currentSize, targetSize = clusterstate.GetAutoscaledNodesCount()
assert.Equal(t, 3, currentSize)
assert.Equal(t, 6, targetSize)
// Target size should increase after a new node group is added.
provider.AddNodeGroup("ng3", 1, 10, 1)