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azure_scale_set_test.go
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azure_scale_set_test.go
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/*
Copyright 2017 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 azure
import (
"fmt"
"net/http"
"testing"
"time"
"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2022-08-01/compute"
"github.com/Azure/go-autorest/autorest/to"
"github.com/stretchr/testify/assert"
"go.uber.org/mock/gomock"
apiv1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
"k8s.io/autoscaler/cluster-autoscaler/cloudprovider"
"sigs.k8s.io/cloud-provider-azure/pkg/azureclients/vmclient/mockvmclient"
"sigs.k8s.io/cloud-provider-azure/pkg/azureclients/vmssclient/mockvmssclient"
"sigs.k8s.io/cloud-provider-azure/pkg/azureclients/vmssvmclient/mockvmssvmclient"
)
const (
testLocation = "eastus"
)
func newTestScaleSet(manager *AzureManager, name string) *ScaleSet {
return &ScaleSet{
azureRef: azureRef{
Name: name,
},
manager: manager,
minSize: 1,
maxSize: 5,
enableForceDelete: manager.config.EnableForceDelete,
}
}
func newTestScaleSetMinSizeZero(manager *AzureManager, name string) *ScaleSet {
return &ScaleSet{
azureRef: azureRef{
Name: name,
},
manager: manager,
minSize: 0,
maxSize: 5,
enableForceDelete: manager.config.EnableForceDelete,
}
}
func newTestVMSSList(cap int64, name, loc string, orchmode compute.OrchestrationMode) []compute.VirtualMachineScaleSet {
return []compute.VirtualMachineScaleSet{
{
Name: to.StringPtr(name),
Sku: &compute.Sku{
Capacity: to.Int64Ptr(cap),
Name: to.StringPtr("Standard_D4_v2"),
},
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
OrchestrationMode: orchmode,
},
Location: to.StringPtr(loc),
ID: to.StringPtr(name),
},
}
}
func newTestVMSSListForEdgeZones(capacity int64, name string) *compute.VirtualMachineScaleSet {
return &compute.VirtualMachineScaleSet{
Name: to.StringPtr(name),
Sku: &compute.Sku{
Capacity: to.Int64Ptr(capacity),
Name: to.StringPtr("Standard_D4_v2"),
},
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{},
Location: to.StringPtr(testLocation),
ExtendedLocation: &compute.ExtendedLocation{
Name: to.StringPtr("losangeles"),
Type: compute.ExtendedLocationTypes("EdgeZone"),
},
}
}
func newTestVMSSVMList(count int) []compute.VirtualMachineScaleSetVM {
var vmssVMList []compute.VirtualMachineScaleSetVM
for i := 0; i < count; i++ {
vmssVM := compute.VirtualMachineScaleSetVM{
ID: to.StringPtr(fmt.Sprintf(fakeVirtualMachineScaleSetVMID, i)),
InstanceID: to.StringPtr(fmt.Sprintf("%d", i)),
VirtualMachineScaleSetVMProperties: &compute.VirtualMachineScaleSetVMProperties{
VMID: to.StringPtr(fmt.Sprintf("123E4567-E89B-12D3-A456-426655440000-%d", i)),
},
}
vmssVMList = append(vmssVMList, vmssVM)
}
return vmssVMList
}
func newTestVMList(count int) []compute.VirtualMachine {
var vmssVMList []compute.VirtualMachine
for i := 0; i < count; i++ {
vmssVM := compute.VirtualMachine{
ID: to.StringPtr(fmt.Sprintf(fakeVirtualMachineVMID, i)),
VirtualMachineProperties: &compute.VirtualMachineProperties{
VMID: to.StringPtr(fmt.Sprintf("123E4567-E89B-12D3-A456-426655440000-%d", i)),
},
}
vmssVMList = append(vmssVMList, vmssVM)
}
return vmssVMList
}
func newApiNode(orchmode compute.OrchestrationMode, vmID int64) *apiv1.Node {
providerId := fakeVirtualMachineScaleSetVMID
if orchmode == compute.Flexible {
providerId = fakeVirtualMachineVMID
}
node := &apiv1.Node{
Spec: apiv1.NodeSpec{
ProviderID: azurePrefix + fmt.Sprintf(providerId, vmID),
},
}
return node
}
func TestMaxSize(t *testing.T) {
provider := newTestProvider(t)
registered := provider.azureManager.RegisterNodeGroup(
newTestScaleSet(provider.azureManager, "test-asg"))
assert.True(t, registered)
assert.Equal(t, len(provider.NodeGroups()), 1)
assert.Equal(t, provider.NodeGroups()[0].MaxSize(), 5)
}
func TestMinSize(t *testing.T) {
provider := newTestProvider(t)
registered := provider.azureManager.RegisterNodeGroup(
newTestScaleSet(provider.azureManager, "test-asg"))
assert.True(t, registered)
assert.Equal(t, len(provider.NodeGroups()), 1)
assert.Equal(t, provider.NodeGroups()[0].MinSize(), 1)
}
func TestMinSizeZero(t *testing.T) {
provider := newTestProvider(t)
registered := provider.azureManager.RegisterNodeGroup(
newTestScaleSetMinSizeZero(provider.azureManager, testASG))
assert.True(t, registered)
assert.Equal(t, len(provider.NodeGroups()), 1)
assert.Equal(t, provider.NodeGroups()[0].MinSize(), 0)
}
func TestTargetSize(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
orchestrationModes := [2]compute.OrchestrationMode{compute.Uniform, compute.Flexible}
expectedScaleSets := newTestVMSSList(3, "test-asg", "eastus", compute.Uniform)
spotScaleSet := newTestVMSSList(5, "spot-vmss", "eastus", compute.Uniform)[0]
spotScaleSet.VirtualMachineProfile = &compute.VirtualMachineScaleSetVMProfile{Priority: compute.Spot}
expectedScaleSets = append(expectedScaleSets, spotScaleSet)
expectedVMSSVMs := newTestVMSSVMList(3)
expectedVMs := newTestVMList(3)
for _, orchMode := range orchestrationModes {
provider := newTestProvider(t)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup).Return(expectedScaleSets, nil).AnyTimes()
provider.azureManager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMClient := mockvmclient.NewMockInterface(ctrl)
mockVMClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup).Return([]compute.VirtualMachine{}, nil).AnyTimes()
provider.azureManager.azClient.virtualMachinesClient = mockVMClient
// return a different capacity from GET API
spotScaleSet.Sku.Capacity = to.Int64Ptr(1)
mockVMSSClient.EXPECT().Get(gomock.Any(), provider.azureManager.config.ResourceGroup, "spot-vmss").Return(spotScaleSet, nil).Times(1)
provider.azureManager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
provider.azureManager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
err := provider.azureManager.forceRefresh()
assert.NoError(t, err)
if orchMode == compute.Uniform {
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
provider.azureManager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
} else {
provider.azureManager.config.EnableVmssFlexNodes = true
mockVMClient.EXPECT().ListVmssFlexVMsWithoutInstanceView(gomock.Any(), "test-asg").Return(expectedVMs, nil).AnyTimes()
}
err = provider.azureManager.forceRefresh()
assert.NoError(t, err)
registered := provider.azureManager.RegisterNodeGroup(
newTestScaleSet(provider.azureManager, testASG))
assert.True(t, registered)
assert.Equal(t, len(provider.NodeGroups()), 1)
targetSize, err := provider.NodeGroups()[0].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 3, targetSize)
targetSize, err = provider.NodeGroups()[0].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 3, targetSize)
// With a spot nodegroup
spotNodeGroup := newTestScaleSet(provider.azureManager, "spot-vmss")
registered = provider.azureManager.RegisterNodeGroup(spotNodeGroup)
assert.True(t, registered)
assert.Equal(t, len(provider.NodeGroups()), 2)
targetSize, err = provider.NodeGroups()[1].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 1, targetSize)
}
}
func TestIncreaseSize(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
orchestrationModes := [2]compute.OrchestrationMode{compute.Uniform, compute.Flexible}
for _, orchMode := range orchestrationModes {
expectedScaleSets := newTestVMSSList(3, testASG, "eastus", orchMode)
expectedVMSSVMs := newTestVMSSVMList(3)
expectedVMs := newTestVMList(3)
// Include Edge Zone scenario here, testing scale from 3 to 5 and scale from zero cases.
expectedEdgeZoneScaleSets := newTestVMSSListForEdgeZones(3, "edgezone-vmss")
expectedEdgeZoneMinZeroScaleSets := newTestVMSSListForEdgeZones(0, "edgezone-minzero-vmss")
expectedScaleSets = append(expectedScaleSets, *expectedEdgeZoneScaleSets, *expectedEdgeZoneMinZeroScaleSets)
provider := newTestProvider(t)
// expectedScaleSets := newTestVMSSList(3, testASG, testLocation, orchMode)
// // Include Edge Zone scenario here, testing scale from 3 to 5 and scale from zero cases.
// expectedEdgeZoneScaleSets := newTestVMSSListForEdgeZones(3, "edgezone-vmss")
// expectedEdgeZoneMinZeroScaleSets := newTestVMSSListForEdgeZones(0, "edgezone-minzero-vmss")
// expectedScaleSets = append(expectedScaleSets, *expectedEdgeZoneScaleSets, *expectedEdgeZoneMinZeroScaleSets)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup).Return(expectedScaleSets, nil).AnyTimes()
mockVMSSClient.EXPECT().CreateOrUpdateAsync(gomock.Any(), provider.azureManager.config.ResourceGroup, testASG, gomock.Any()).Return(nil, nil)
// This should be Anytimes() because the parent function of this call - updateVMSSCapacity() is a goroutine
// and this test doesn't wait on goroutine, hence, it is difficult to write exact expected number (which is 3 here)
// before we return from this this.
// This is a future TODO: sync.WaitGroup should be used in actual code and make code easily testable
mockVMSSClient.EXPECT().WaitForCreateOrUpdateResult(gomock.Any(), gomock.Any(), provider.azureManager.config.ResourceGroup).Return(&http.Response{StatusCode: http.StatusOK}, nil).AnyTimes()
provider.azureManager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMClient := mockvmclient.NewMockInterface(ctrl)
mockVMClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup).Return([]compute.VirtualMachine{}, nil).AnyTimes()
provider.azureManager.azClient.virtualMachinesClient = mockVMClient
if orchMode == compute.Uniform {
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
provider.azureManager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
} else {
provider.azureManager.config.EnableVmssFlexNodes = true
mockVMClient.EXPECT().ListVmssFlexVMsWithoutInstanceView(gomock.Any(), "test-asg").Return(expectedVMs, nil).AnyTimes()
}
err := provider.azureManager.forceRefresh()
assert.NoError(t, err)
ss := newTestScaleSet(provider.azureManager, "test-asg-doesnt-exist")
err = ss.IncreaseSize(100)
expectedErr := fmt.Errorf("could not find vmss: test-asg-doesnt-exist")
assert.Equal(t, expectedErr, err)
registered := provider.azureManager.RegisterNodeGroup(
newTestScaleSet(provider.azureManager, testASG))
assert.True(t, registered)
assert.Equal(t, len(provider.NodeGroups()), 1)
// Current target size is 3.
targetSize, err := provider.NodeGroups()[0].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 3, targetSize)
// Increase 2 nodes.
err = provider.NodeGroups()[0].IncreaseSize(2)
assert.NoError(t, err)
// New target size should be 5.
targetSize, err = provider.NodeGroups()[0].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 5, targetSize)
// Testing Edge Zone scenario. Scale from 3 to 5.
registeredForEdgeZone := provider.azureManager.RegisterNodeGroup(
newTestScaleSet(provider.azureManager, "edgezone-vmss"))
assert.True(t, registeredForEdgeZone)
assert.Equal(t, len(provider.NodeGroups()), 2)
targetSizeForEdgeZone, err := provider.NodeGroups()[1].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 3, targetSizeForEdgeZone)
mockVMSSClient.EXPECT().CreateOrUpdateAsync(gomock.Any(), provider.azureManager.config.ResourceGroup,
"edgezone-vmss", gomock.Any()).Return(nil, nil)
err = provider.NodeGroups()[1].IncreaseSize(2)
assert.NoError(t, err)
targetSizeForEdgeZone, err = provider.NodeGroups()[1].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 5, targetSizeForEdgeZone)
// Testing Edge Zone scenario scaleFromZero case. Scale from 0 to 2.
registeredForEdgeZoneMinZero := provider.azureManager.RegisterNodeGroup(
newTestScaleSetMinSizeZero(provider.azureManager, "edgezone-minzero-vmss"))
assert.True(t, registeredForEdgeZoneMinZero)
assert.Equal(t, len(provider.NodeGroups()), 3)
// Current target size is 0.
targetSizeForEdgeZoneMinZero, err := provider.NodeGroups()[2].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 0, targetSizeForEdgeZoneMinZero)
mockVMSSClient.EXPECT().CreateOrUpdateAsync(gomock.Any(), provider.azureManager.config.ResourceGroup,
"edgezone-minzero-vmss", gomock.Any()).Return(nil, nil)
err = provider.NodeGroups()[2].IncreaseSize(2)
assert.NoError(t, err)
// New target size should be 2.
targetSizeForEdgeZoneMinZero, err = provider.NodeGroups()[2].TargetSize()
assert.NoError(t, err)
assert.Equal(t, 2, targetSizeForEdgeZoneMinZero)
}
}
// TestIncreaseSizeOnVMProvisioningFailed has been tweeked only for Uniform Orchestration mode.
// If ProvisioningState == failed and power state is not running, Status.State == InstanceCreating with errorInfo populated.
func TestIncreaseSizeOnVMProvisioningFailed(t *testing.T) {
testCases := map[string]struct {
expectInstanceRunning bool
isMissingInstanceView bool
statuses []compute.InstanceViewStatus
expectErrorInfoPopulated bool
}{
"out of resources when no power state exists": {
expectErrorInfoPopulated: true,
},
"out of resources when VM is stopped": {
statuses: []compute.InstanceViewStatus{{Code: to.StringPtr(vmPowerStateStopped)}},
expectErrorInfoPopulated: true,
},
"out of resources when VM reports invalid power state": {
statuses: []compute.InstanceViewStatus{{Code: to.StringPtr("PowerState/invalid")}},
expectErrorInfoPopulated: true,
},
"instance running when power state is running": {
expectInstanceRunning: true,
statuses: []compute.InstanceViewStatus{{Code: to.StringPtr(vmPowerStateRunning)}},
expectErrorInfoPopulated: false,
},
"instance running if instance view cannot be retrieved": {
expectInstanceRunning: true,
isMissingInstanceView: true,
expectErrorInfoPopulated: false,
},
}
for testName, testCase := range testCases {
t.Run(testName, func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
manager := newTestAzureManager(t)
vmssName := "vmss-failed-upscale"
expectedScaleSets := newTestVMSSList(3, "vmss-failed-upscale", "eastus", compute.Uniform)
expectedVMSSVMs := newTestVMSSVMList(3)
// The failed state is important line of code here
expectedVMs := newTestVMList(3)
expectedVMSSVMs[2].ProvisioningState = to.StringPtr(provisioningStateFailed)
if !testCase.isMissingInstanceView {
expectedVMSSVMs[2].InstanceView = &compute.VirtualMachineScaleSetVMInstanceView{Statuses: &testCase.statuses}
}
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedScaleSets, nil)
mockVMSSClient.EXPECT().CreateOrUpdateAsync(gomock.Any(), manager.config.ResourceGroup, vmssName, gomock.Any()).Return(nil, nil)
mockVMSSClient.EXPECT().WaitForCreateOrUpdateResult(gomock.Any(), gomock.Any(), manager.config.ResourceGroup).Return(&http.Response{StatusCode: http.StatusOK}, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup, "vmss-failed-upscale", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
mockVMClient := mockvmclient.NewMockInterface(ctrl)
mockVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedVMs, nil).AnyTimes()
manager.azClient.virtualMachinesClient = mockVMClient
manager.explicitlyConfigured["vmss-failed-upscale"] = true
registered := manager.RegisterNodeGroup(newTestScaleSet(manager, vmssName))
assert.True(t, registered)
manager.Refresh()
provider, err := BuildAzureCloudProvider(manager, nil)
assert.NoError(t, err)
scaleSet, ok := provider.NodeGroups()[0].(*ScaleSet)
assert.True(t, ok)
// Increase size by one, but the new node fails provisioning
err = scaleSet.IncreaseSize(1)
assert.NoError(t, err)
nodes, err := scaleSet.Nodes()
assert.NoError(t, err)
assert.Equal(t, 3, len(nodes))
assert.Equal(t, testCase.expectErrorInfoPopulated, nodes[2].Status.ErrorInfo != nil)
if testCase.expectErrorInfoPopulated {
assert.Equal(t, cloudprovider.InstanceCreating, nodes[2].Status.State)
} else {
assert.Equal(t, cloudprovider.InstanceRunning, nodes[2].Status.State)
}
})
}
}
func TestIncreaseSizeOnVMSSUpdating(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
manager := newTestAzureManager(t)
vmssName := "vmss-updating"
var vmssCapacity int64 = 3
expectedScaleSets := []compute.VirtualMachineScaleSet{
{
Name: &vmssName,
Sku: &compute.Sku{
Capacity: &vmssCapacity,
},
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
ProvisioningState: to.StringPtr(string(compute.GalleryProvisioningStateUpdating)),
OrchestrationMode: compute.Uniform,
},
},
}
expectedVMSSVMs := newTestVMSSVMList(3)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedScaleSets, nil)
mockVMSSClient.EXPECT().CreateOrUpdateAsync(gomock.Any(), manager.config.ResourceGroup, vmssName, gomock.Any()).Return(
nil, nil)
mockVMSSClient.EXPECT().WaitForCreateOrUpdateResult(gomock.Any(), gomock.Any(), manager.config.ResourceGroup).Return(
&http.Response{StatusCode: http.StatusOK}, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup, "vmss-updating",
gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
manager.explicitlyConfigured["vmss-updating"] = true
registered := manager.RegisterNodeGroup(newTestScaleSet(manager, vmssName))
assert.True(t, registered)
err := manager.Refresh()
assert.NoError(t, err)
provider, err := BuildAzureCloudProvider(manager, nil)
assert.NoError(t, err)
// Scaling should continue even VMSS is under updating.
scaleSet, ok := provider.NodeGroups()[0].(*ScaleSet)
assert.True(t, ok)
err = scaleSet.IncreaseSize(1)
assert.NoError(t, err)
}
func TestBelongs(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
orchestrationModes := [2]compute.OrchestrationMode{compute.Uniform, compute.Flexible}
expectedVMSSVMs := newTestVMSSVMList(3)
expectedVMs := newTestVMList(3)
for _, orchMode := range orchestrationModes {
expectedScaleSets := newTestVMSSList(3, "test-asg", "eastus", orchMode)
provider := newTestProvider(t)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup).Return(expectedScaleSets, nil)
provider.azureManager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMClient := mockvmclient.NewMockInterface(ctrl)
mockVMClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup).Return([]compute.VirtualMachine{}, nil).AnyTimes()
provider.azureManager.azClient.virtualMachinesClient = mockVMClient
if orchMode == compute.Uniform {
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), provider.azureManager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
provider.azureManager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
} else {
provider.azureManager.config.EnableVmssFlexNodes = true
mockVMClient.EXPECT().ListVmssFlexVMsWithoutInstanceView(gomock.Any(), "test-asg").Return(expectedVMs, nil).AnyTimes()
}
registered := provider.azureManager.RegisterNodeGroup(
newTestScaleSet(provider.azureManager, testASG))
assert.True(t, registered)
scaleSet, ok := provider.NodeGroups()[0].(*ScaleSet)
assert.True(t, ok)
provider.azureManager.explicitlyConfigured["test-asg"] = true
err := provider.azureManager.Refresh()
assert.NoError(t, err)
invalidNode := &apiv1.Node{
Spec: apiv1.NodeSpec{
ProviderID: azurePrefix + "/subscriptions/test-subscrition-id/resourcegroups/invalid-asg/providers/microsoft.compute/virtualmachinescalesets/agents/virtualmachines/0",
},
}
_, err = scaleSet.Belongs(invalidNode)
assert.Error(t, err)
validNode := newApiNode(orchMode, 0)
belongs, err := scaleSet.Belongs(validNode)
assert.Equal(t, true, belongs)
assert.NoError(t, err)
}
}
func TestDeleteNodes(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
vmssName := "test-asg"
var vmssCapacity int64 = 3
cases := []struct {
name string
orchestrationMode compute.OrchestrationMode
enableForceDelete bool
}{
{
name: "uniform, force delete enabled",
orchestrationMode: compute.Uniform,
enableForceDelete: true,
},
{
name: "uniform, force delete disabled",
orchestrationMode: compute.Uniform,
enableForceDelete: false,
},
{
name: "flexible, force delete enabled",
orchestrationMode: compute.Flexible,
enableForceDelete: true,
},
{
name: "flexible, force delete disabled",
orchestrationMode: compute.Flexible,
enableForceDelete: false,
},
}
for _, tc := range cases {
orchMode := tc.orchestrationMode
enableForceDelete := tc.enableForceDelete
expectedVMSSVMs := newTestVMSSVMList(3)
expectedVMs := newTestVMList(3)
manager := newTestAzureManager(t)
manager.config.EnableForceDelete = enableForceDelete
expectedScaleSets := newTestVMSSList(vmssCapacity, vmssName, "eastus", orchMode)
fmt.Printf("orchMode: %s, enableForceDelete: %t\n", orchMode, enableForceDelete)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedScaleSets, nil).Times(2)
mockVMSSClient.EXPECT().DeleteInstancesAsync(gomock.Any(), manager.config.ResourceGroup, gomock.Any(), gomock.Any(), enableForceDelete).Return(nil, nil)
mockVMSSClient.EXPECT().WaitForDeleteInstancesResult(gomock.Any(), gomock.Any(), manager.config.ResourceGroup).Return(&http.Response{StatusCode: http.StatusOK}, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMClient := mockvmclient.NewMockInterface(ctrl)
manager.azClient.virtualMachinesClient = mockVMClient
mockVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedVMs, nil).AnyTimes()
if orchMode == compute.Uniform {
mockVMSSVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
} else {
manager.config.EnableVmssFlexNodes = true
mockVMClient.EXPECT().ListVmssFlexVMsWithoutInstanceView(gomock.Any(), "test-asg").Return(expectedVMs, nil).AnyTimes()
manager.azClient.virtualMachinesClient = mockVMClient
}
err := manager.forceRefresh()
assert.NoError(t, err)
resourceLimiter := cloudprovider.NewResourceLimiter(
map[string]int64{cloudprovider.ResourceNameCores: 1, cloudprovider.ResourceNameMemory: 10000000},
map[string]int64{cloudprovider.ResourceNameCores: 10, cloudprovider.ResourceNameMemory: 100000000})
provider, err := BuildAzureCloudProvider(manager, resourceLimiter)
assert.NoError(t, err)
registered := manager.RegisterNodeGroup(
newTestScaleSet(manager, testASG))
manager.explicitlyConfigured[testASG] = true
assert.True(t, registered)
err = manager.forceRefresh()
assert.NoError(t, err)
scaleSet, ok := provider.NodeGroups()[0].(*ScaleSet)
assert.True(t, ok)
targetSize, err := scaleSet.TargetSize()
assert.NoError(t, err)
assert.Equal(t, 3, targetSize)
// Perform the delete operation
nodesToDelete := []*apiv1.Node{
newApiNode(orchMode, 0),
newApiNode(orchMode, 2),
}
err = scaleSet.DeleteNodes(nodesToDelete)
assert.NoError(t, err)
// create scale set with vmss capacity 1
expectedScaleSets = newTestVMSSList(1, vmssName, "eastus", orchMode)
mockVMSSClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedScaleSets, nil).AnyTimes()
if orchMode == compute.Uniform {
expectedVMSSVMs[0].ProvisioningState = to.StringPtr(provisioningStateDeleting)
expectedVMSSVMs[2].ProvisioningState = to.StringPtr(provisioningStateDeleting)
mockVMSSVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
} else {
expectedVMs[0].ProvisioningState = to.StringPtr(provisioningStateDeleting)
expectedVMs[2].ProvisioningState = to.StringPtr(provisioningStateDeleting)
mockVMClient.EXPECT().ListVmssFlexVMsWithoutInstanceView(gomock.Any(), "test-asg").Return(expectedVMs, nil).AnyTimes()
}
err = manager.forceRefresh()
assert.NoError(t, err)
// Ensure the the cached size has been proactively decremented by 2
targetSize, err = scaleSet.TargetSize()
assert.NoError(t, err)
assert.Equal(t, 1, targetSize)
// Ensure that the status for the instances is Deleting
// lastInstanceRefresh is set to time.Now() to avoid resetting instanceCache.
scaleSet.lastInstanceRefresh = time.Now()
instance0, found, err := scaleSet.getInstanceByProviderID(nodesToDelete[0].Spec.ProviderID)
assert.True(t, found, true)
assert.NoError(t, err)
assert.Equal(t, instance0.Status.State, cloudprovider.InstanceDeleting)
// lastInstanceRefresh is set to time.Now() to avoid resetting instanceCache.
scaleSet.lastInstanceRefresh = time.Now()
instance2, found, err := scaleSet.getInstanceByProviderID(nodesToDelete[1].Spec.ProviderID)
assert.True(t, found, true)
assert.NoError(t, err)
assert.Equal(t, instance2.Status.State, cloudprovider.InstanceDeleting)
}
}
func TestDeleteNodeUnregistered(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
vmssName := "test-asg"
var vmssCapacity int64 = 2
cases := []struct {
name string
orchestrationMode compute.OrchestrationMode
enableForceDelete bool
}{
{
name: "uniform, force delete enabled",
orchestrationMode: compute.Uniform,
enableForceDelete: true,
},
{
name: "uniform, force delete disabled",
orchestrationMode: compute.Uniform,
enableForceDelete: false,
},
{
name: "flexible, force delete enabled",
orchestrationMode: compute.Flexible,
enableForceDelete: true,
},
{
name: "flexible, force delete disabled",
orchestrationMode: compute.Flexible,
enableForceDelete: false,
},
}
for _, tc := range cases {
orchMode := tc.orchestrationMode
enableForceDelete := tc.enableForceDelete
expectedVMSSVMs := newTestVMSSVMList(2)
expectedVMs := newTestVMList(2)
manager := newTestAzureManager(t)
manager.config.EnableForceDelete = enableForceDelete
expectedScaleSets := newTestVMSSList(vmssCapacity, vmssName, "eastus", orchMode)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedScaleSets, nil).Times(2)
mockVMSSClient.EXPECT().DeleteInstancesAsync(gomock.Any(), manager.config.ResourceGroup, gomock.Any(), gomock.Any(), enableForceDelete).Return(nil, nil)
mockVMSSClient.EXPECT().WaitForDeleteInstancesResult(gomock.Any(), gomock.Any(), manager.config.ResourceGroup).Return(&http.Response{StatusCode: http.StatusOK}, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMClient := mockvmclient.NewMockInterface(ctrl)
mockVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedVMs, nil).AnyTimes()
manager.azClient.virtualMachinesClient = mockVMClient
if orchMode == compute.Uniform {
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
} else {
manager.config.EnableVmssFlexNodes = true
mockVMClient.EXPECT().ListVmssFlexVMsWithoutInstanceView(gomock.Any(), "test-asg").Return(expectedVMs, nil).AnyTimes()
}
err := manager.forceRefresh()
assert.NoError(t, err)
resourceLimiter := cloudprovider.NewResourceLimiter(
map[string]int64{cloudprovider.ResourceNameCores: 1, cloudprovider.ResourceNameMemory: 10000000},
map[string]int64{cloudprovider.ResourceNameCores: 10, cloudprovider.ResourceNameMemory: 100000000})
provider, err := BuildAzureCloudProvider(manager, resourceLimiter)
assert.NoError(t, err)
registered := manager.RegisterNodeGroup(
newTestScaleSet(manager, testASG))
manager.explicitlyConfigured[testASG] = true
assert.True(t, registered)
err = manager.forceRefresh()
assert.NoError(t, err)
scaleSet, ok := provider.NodeGroups()[0].(*ScaleSet)
assert.True(t, ok)
scaleSet.instancesRefreshPeriod = defaultVmssInstancesRefreshPeriod
targetSize, err := scaleSet.TargetSize()
assert.NoError(t, err)
assert.Equal(t, 2, targetSize)
// annotate node with unregistered annotation
annotations := make(map[string]string)
annotations[cloudprovider.FakeNodeReasonAnnotation] = cloudprovider.FakeNodeUnregistered
nodesToDelete := []*apiv1.Node{
newApiNode(orchMode, 0),
}
nodesToDelete[0].ObjectMeta.Annotations = annotations
err = scaleSet.DeleteNodes(nodesToDelete)
assert.NoError(t, err)
// Ensure the the cached size has NOT been proactively decremented
targetSize, err = scaleSet.TargetSize()
assert.NoError(t, err)
assert.Equal(t, 2, targetSize)
// Ensure that the status for the instances is Deleting
// lastInstanceRefresh is set to time.Now() to avoid resetting instanceCache.
scaleSet.lastInstanceRefresh = time.Now()
instance0, found, err := scaleSet.getInstanceByProviderID(nodesToDelete[0].Spec.ProviderID)
assert.True(t, found, true)
assert.NoError(t, err)
assert.Equal(t, cloudprovider.InstanceDeleting, instance0.Status.State)
}
}
func TestDeleteInstancesWithForceDeleteEnabled(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
manager := newTestAzureManager(t)
// enabling forceDelete
manager.config.EnableForceDelete = true
vmssName := "test-asg"
var vmssCapacity int64 = 3
//hostGroupId := "test-hostGroup"
//hostGroup := &compute.SubResource{
// ID: &hostGroupId,
//}
expectedScaleSets := []compute.VirtualMachineScaleSet{
{
Name: &vmssName,
Sku: &compute.Sku{
Capacity: &vmssCapacity,
},
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
OrchestrationMode: compute.Uniform,
},
},
}
expectedVMSSVMs := newTestVMSSVMList(3)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedScaleSets, nil).Times(2)
mockVMSSClient.EXPECT().DeleteInstancesAsync(gomock.Any(), manager.config.ResourceGroup, gomock.Any(), gomock.Any(), true).Return(nil, nil)
mockVMSSClient.EXPECT().WaitForDeleteInstancesResult(gomock.Any(), gomock.Any(), manager.config.ResourceGroup).Return(&http.Response{StatusCode: http.StatusOK}, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
err := manager.forceRefresh()
assert.NoError(t, err)
resourceLimiter := cloudprovider.NewResourceLimiter(
map[string]int64{cloudprovider.ResourceNameCores: 1, cloudprovider.ResourceNameMemory: 10000000},
map[string]int64{cloudprovider.ResourceNameCores: 10, cloudprovider.ResourceNameMemory: 100000000})
provider, err := BuildAzureCloudProvider(manager, resourceLimiter)
assert.NoError(t, err)
registered := manager.RegisterNodeGroup(
newTestScaleSet(manager, "test-asg"))
manager.explicitlyConfigured["test-asg"] = true
assert.True(t, registered)
err = manager.forceRefresh()
assert.NoError(t, err)
scaleSet, ok := provider.NodeGroups()[0].(*ScaleSet)
assert.True(t, ok)
targetSize, err := scaleSet.TargetSize()
assert.NoError(t, err)
assert.Equal(t, 3, targetSize)
// Perform the delete operation
nodesToDelete := []*apiv1.Node{
{
Spec: apiv1.NodeSpec{
ProviderID: azurePrefix + fmt.Sprintf(fakeVirtualMachineScaleSetVMID, 0),
},
},
{
Spec: apiv1.NodeSpec{
ProviderID: azurePrefix + fmt.Sprintf(fakeVirtualMachineScaleSetVMID, 2),
},
},
}
err = scaleSet.DeleteNodes(nodesToDelete)
assert.NoError(t, err)
vmssCapacity = 1
expectedScaleSets = []compute.VirtualMachineScaleSet{
{
Name: &vmssName,
Sku: &compute.Sku{
Capacity: &vmssCapacity,
},
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
OrchestrationMode: compute.Uniform,
},
},
}
mockVMSSClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedScaleSets, nil).AnyTimes()
expectedVMSSVMs[0].ProvisioningState = to.StringPtr(string(compute.GalleryProvisioningStateDeleting))
expectedVMSSVMs[2].ProvisioningState = to.StringPtr(string(compute.GalleryProvisioningStateDeleting))
mockVMSSVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
err = manager.forceRefresh()
assert.NoError(t, err)
// Ensure the the cached size has been proactively decremented by 2
targetSize, err = scaleSet.TargetSize()
assert.NoError(t, err)
assert.Equal(t, 1, targetSize)
// Ensure that the status for the instances is Deleting
// lastInstanceRefresh is set to time.Now() to avoid resetting instanceCache.
scaleSet.lastInstanceRefresh = time.Now()
instance0, found, err := scaleSet.getInstanceByProviderID(azurePrefix + fmt.Sprintf(fakeVirtualMachineScaleSetVMID, 0))
assert.True(t, found, true)
assert.NoError(t, err)
assert.Equal(t, instance0.Status.State, cloudprovider.InstanceDeleting)
// lastInstanceRefresh is set to time.Now() to avoid resetting instanceCache.
scaleSet.lastInstanceRefresh = time.Now()
instance2, found, err := scaleSet.getInstanceByProviderID(azurePrefix + fmt.Sprintf(fakeVirtualMachineScaleSetVMID, 2))
assert.True(t, found, true)
assert.NoError(t, err)
assert.Equal(t, instance2.Status.State, cloudprovider.InstanceDeleting)
}
func TestDeleteNoConflictRequest(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
vmssName := "test-asg"
var vmssCapacity int64 = 3
manager := newTestAzureManager(t)
expectedVMSSVMs := []compute.VirtualMachineScaleSetVM{
{
ID: to.StringPtr(fakeVirtualMachineScaleSetVMID),
InstanceID: to.StringPtr("0"),
VirtualMachineScaleSetVMProperties: &compute.VirtualMachineScaleSetVMProperties{
VMID: to.StringPtr("123E4567-E89B-12D3-A456-426655440000"),
ProvisioningState: to.StringPtr("Deleting"),
},
},
}
expectedScaleSets := []compute.VirtualMachineScaleSet{
{
Name: &vmssName,
Sku: &compute.Sku{
Capacity: &vmssCapacity,
},
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
OrchestrationMode: compute.Uniform,
},
},
}
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup).Return(expectedScaleSets, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetsClient = mockVMSSClient
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockVMSSVMClient.EXPECT().List(gomock.Any(), manager.config.ResourceGroup, "test-asg", gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
manager.azClient.virtualMachineScaleSetVMsClient = mockVMSSVMClient
resourceLimiter := cloudprovider.NewResourceLimiter(
map[string]int64{cloudprovider.ResourceNameCores: 1, cloudprovider.ResourceNameMemory: 10000000},
map[string]int64{cloudprovider.ResourceNameCores: 10, cloudprovider.ResourceNameMemory: 100000000})
provider, err := BuildAzureCloudProvider(manager, resourceLimiter)
assert.NoError(t, err)
registered := manager.RegisterNodeGroup(newTestScaleSet(manager, "test-asg"))
manager.explicitlyConfigured["test-asg"] = true
assert.True(t, registered)
manager.Refresh()
node := &apiv1.Node{
Spec: apiv1.NodeSpec{
ProviderID: azurePrefix + fmt.Sprintf(fakeVirtualMachineScaleSetVMID, 0),
},
}
scaleSet, ok := provider.NodeGroups()[0].(*ScaleSet)
assert.True(t, ok)
err = scaleSet.DeleteNodes([]*apiv1.Node{node})
}
func TestId(t *testing.T) {
provider := newTestProvider(t)
registered := provider.azureManager.RegisterNodeGroup(
newTestScaleSet(provider.azureManager, "test-asg"))
assert.True(t, registered)
assert.Equal(t, len(provider.NodeGroups()), 1)
assert.Equal(t, provider.NodeGroups()[0].Id(), "test-asg")
}
func TestDebug(t *testing.T) {
asg := ScaleSet{
manager: newTestAzureManager(t),
minSize: 5,
maxSize: 55,
}
asg.Name = "test-scale-set"
assert.Equal(t, asg.Debug(), "test-scale-set (5:55)")
}
func TestScaleSetNodes(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
orchestrationModes := [2]compute.OrchestrationMode{compute.Uniform, compute.Flexible}
expectedVMSSVMs := newTestVMSSVMList(3)
expectedVMs := newTestVMList(3)
for _, orchMode := range orchestrationModes {
expectedScaleSets := newTestVMSSList(3, "test-asg", "eastus", orchMode)