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azure_vmss_test.go
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azure_vmss_test.go
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/*
Copyright 2020 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 provider
import (
"fmt"
"strings"
"testing"
"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2020-12-01/compute"
"github.com/Azure/azure-sdk-for-go/services/network/mgmt/2021-02-01/network"
"github.com/Azure/go-autorest/autorest/to"
"github.com/golang/mock/gomock"
"github.com/stretchr/testify/assert"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
utilerrors "k8s.io/apimachinery/pkg/util/errors"
cloudprovider "k8s.io/cloud-provider"
"sigs.k8s.io/cloud-provider-azure/pkg/azureclients/interfaceclient/mockinterfaceclient"
"sigs.k8s.io/cloud-provider-azure/pkg/azureclients/publicipclient/mockpublicipclient"
"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"
azcache "sigs.k8s.io/cloud-provider-azure/pkg/cache"
"sigs.k8s.io/cloud-provider-azure/pkg/consts"
"sigs.k8s.io/cloud-provider-azure/pkg/retry"
)
const (
fakePrivateIP = "10.240.0.10"
fakePublicIP = "10.10.10.10"
testVMSSName = "vmss"
testVMPowerState = "PowerState/Running"
testLBBackendpoolID0 = "/subscriptions/sub/resourceGroups/rg/providers/Microsoft.Network/loadBalancers/lb/backendAddressPools/backendpool-0"
testLBBackendpoolID1 = "/subscriptions/sub/resourceGroups/rg/providers/Microsoft.Network/loadBalancers/lb/backendAddressPools/backendpool-1"
testLBBackendpoolID2 = "/subscriptions/sub/resourceGroups/rg1/providers/Microsoft.Network/loadBalancers/lb/backendAddressPools/backendpool-2"
)
func buildTestVMSSWithLB(name, namePrefix string, lbBackendpoolIDs []string, ipv6 bool) compute.VirtualMachineScaleSet {
lbBackendpools := make([]compute.SubResource, 0)
for _, id := range lbBackendpoolIDs {
lbBackendpools = append(lbBackendpools, compute.SubResource{ID: to.StringPtr(id)})
}
ipConfig := []compute.VirtualMachineScaleSetIPConfiguration{
{
VirtualMachineScaleSetIPConfigurationProperties: &compute.VirtualMachineScaleSetIPConfigurationProperties{
LoadBalancerBackendAddressPools: &lbBackendpools,
},
},
}
if ipv6 {
ipConfig = append(ipConfig, compute.VirtualMachineScaleSetIPConfiguration{
VirtualMachineScaleSetIPConfigurationProperties: &compute.VirtualMachineScaleSetIPConfigurationProperties{
LoadBalancerBackendAddressPools: &lbBackendpools,
PrivateIPAddressVersion: compute.IPv6,
},
})
}
expectedVMSS := compute.VirtualMachineScaleSet{
Name: &name,
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
ProvisioningState: to.StringPtr("Running"),
VirtualMachineProfile: &compute.VirtualMachineScaleSetVMProfile{
OsProfile: &compute.VirtualMachineScaleSetOSProfile{
ComputerNamePrefix: &namePrefix,
},
NetworkProfile: &compute.VirtualMachineScaleSetNetworkProfile{
NetworkInterfaceConfigurations: &[]compute.VirtualMachineScaleSetNetworkConfiguration{
{
VirtualMachineScaleSetNetworkConfigurationProperties: &compute.VirtualMachineScaleSetNetworkConfigurationProperties{
Primary: to.BoolPtr(true),
IPConfigurations: &ipConfig,
},
},
},
},
},
},
}
return expectedVMSS
}
func buildTestVMSS(name, computerNamePrefix string) compute.VirtualMachineScaleSet {
return compute.VirtualMachineScaleSet{
Name: &name,
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
VirtualMachineProfile: &compute.VirtualMachineScaleSetVMProfile{
OsProfile: &compute.VirtualMachineScaleSetOSProfile{
ComputerNamePrefix: &computerNamePrefix,
},
},
},
}
}
func buildTestVirtualMachineEnv(ss *Cloud, scaleSetName, zone string, faultDomain int32, vmList []string, state string, isIPv6 bool) ([]compute.VirtualMachineScaleSetVM, network.Interface, network.PublicIPAddress) {
expectedVMSSVMs := make([]compute.VirtualMachineScaleSetVM, 0)
expectedInterface := network.Interface{}
expectedPIP := network.PublicIPAddress{}
for i := range vmList {
nodeName := vmList[i]
ID := fmt.Sprintf("/subscriptions/script/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/%s/virtualMachines/%d", scaleSetName, i)
interfaceID := fmt.Sprintf("/subscriptions/script/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/%s/virtualMachines/%d/networkInterfaces/%s", scaleSetName, i, nodeName)
instanceID := fmt.Sprintf("%d", i)
vmName := fmt.Sprintf("%s_%s", scaleSetName, instanceID)
publicAddressID := fmt.Sprintf("/subscriptions/script/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/%s/virtualMachines/%d/networkInterfaces/%s/ipConfigurations/ipconfig1/publicIPAddresses/%s", scaleSetName, i, nodeName, nodeName)
// set vmss virtual machine.
networkInterfaces := []compute.NetworkInterfaceReference{
{
ID: &interfaceID,
NetworkInterfaceReferenceProperties: &compute.NetworkInterfaceReferenceProperties{
Primary: to.BoolPtr(true),
},
},
}
ipConfigurations := []compute.VirtualMachineScaleSetIPConfiguration{
{
Name: to.StringPtr("ipconfig1"),
VirtualMachineScaleSetIPConfigurationProperties: &compute.VirtualMachineScaleSetIPConfigurationProperties{
Primary: to.BoolPtr(true),
LoadBalancerBackendAddressPools: &[]compute.SubResource{{ID: to.StringPtr(testLBBackendpoolID0)}},
},
},
}
networkConfigurations := []compute.VirtualMachineScaleSetNetworkConfiguration{
{
Name: to.StringPtr("ipconfig1"),
ID: to.StringPtr("fakeNetworkConfiguration"),
VirtualMachineScaleSetNetworkConfigurationProperties: &compute.VirtualMachineScaleSetNetworkConfigurationProperties{
IPConfigurations: &ipConfigurations,
},
},
}
if isIPv6 {
networkConfigurations = append(networkConfigurations, compute.VirtualMachineScaleSetNetworkConfiguration{
Name: to.StringPtr("ipconfig1v6"),
ID: to.StringPtr("fakeNetworkConfigurationIPv6"),
VirtualMachineScaleSetNetworkConfigurationProperties: &compute.VirtualMachineScaleSetNetworkConfigurationProperties{
IPConfigurations: &[]compute.VirtualMachineScaleSetIPConfiguration{
{
Name: to.StringPtr("ipconfig1"),
VirtualMachineScaleSetIPConfigurationProperties: &compute.VirtualMachineScaleSetIPConfigurationProperties{
Primary: to.BoolPtr(false),
LoadBalancerBackendAddressPools: &[]compute.SubResource{{ID: to.StringPtr(testLBBackendpoolID0)}},
PrivateIPAddressVersion: compute.IPv6,
},
},
},
},
})
}
vmssVM := compute.VirtualMachineScaleSetVM{
VirtualMachineScaleSetVMProperties: &compute.VirtualMachineScaleSetVMProperties{
ProvisioningState: to.StringPtr(state),
OsProfile: &compute.OSProfile{
ComputerName: &nodeName,
},
NetworkProfile: &compute.NetworkProfile{
NetworkInterfaces: &networkInterfaces,
},
NetworkProfileConfiguration: &compute.VirtualMachineScaleSetVMNetworkProfileConfiguration{
NetworkInterfaceConfigurations: &networkConfigurations,
},
InstanceView: &compute.VirtualMachineScaleSetVMInstanceView{
PlatformFaultDomain: &faultDomain,
Statuses: &[]compute.InstanceViewStatus{
{Code: to.StringPtr(testVMPowerState)},
},
},
},
ID: &ID,
InstanceID: &instanceID,
Name: &vmName,
Location: &ss.Location,
Sku: &compute.Sku{Name: to.StringPtr("sku")},
}
if zone != "" {
zones := []string{zone}
vmssVM.Zones = &zones
}
// set interfaces.
expectedInterface = network.Interface{
Name: to.StringPtr("nic"),
ID: &interfaceID,
InterfacePropertiesFormat: &network.InterfacePropertiesFormat{
IPConfigurations: &[]network.InterfaceIPConfiguration{
{
InterfaceIPConfigurationPropertiesFormat: &network.InterfaceIPConfigurationPropertiesFormat{
Primary: to.BoolPtr(true),
PrivateIPAddress: to.StringPtr(fakePrivateIP),
PublicIPAddress: &network.PublicIPAddress{
ID: to.StringPtr(publicAddressID),
},
},
},
},
},
}
// set public IPs.
expectedPIP = network.PublicIPAddress{
ID: to.StringPtr(publicAddressID),
PublicIPAddressPropertiesFormat: &network.PublicIPAddressPropertiesFormat{
IPAddress: to.StringPtr(fakePublicIP),
},
}
expectedVMSSVMs = append(expectedVMSSVMs, vmssVM)
}
return expectedVMSSVMs, expectedInterface, expectedPIP
}
func TestGetScaleSetVMInstanceID(t *testing.T) {
tests := []struct {
msg string
machineName string
expectError bool
expectedInstanceID string
}{{
msg: "invalid vmss instance name",
machineName: "vmvm",
expectError: true,
},
{
msg: "valid vmss instance name",
machineName: "vm00000Z",
expectError: false,
expectedInstanceID: "35",
},
}
for i, test := range tests {
instanceID, err := getScaleSetVMInstanceID(test.machineName)
if test.expectError {
assert.Error(t, err, fmt.Sprintf("TestCase[%d]: %s", i, test.msg))
} else {
assert.Equal(t, test.expectedInstanceID, instanceID, fmt.Sprintf("TestCase[%d]: %s", i, test.msg))
}
}
}
func TestGetNodeIdentityByNodeName(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
vmList []string
nodeName string
expected *nodeIdentity
scaleSet string
computerName string
expectError bool
}{
{
description: "ScaleSet should get node identity by node name",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "vmssee6c2000001",
scaleSet: "vmssee6c2",
computerName: "vmssee6c2",
expected: &nodeIdentity{"rg", "vmssee6c2", "vmssee6c2000001"},
},
{
description: "ScaleSet should get node identity when computerNamePrefix differs from vmss name",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "vmssee6c2000001",
scaleSet: "ss",
computerName: "vmssee6c2",
expected: &nodeIdentity{"rg", "ss", "vmssee6c2000001"},
},
{
description: "ScaleSet should get node identity by node name with upper cases hostname",
vmList: []string{"VMSSEE6C2000000", "VMSSEE6C2000001"},
nodeName: "vmssee6c2000001",
scaleSet: "ss",
computerName: "vmssee6c2",
expected: &nodeIdentity{"rg", "ss", "vmssee6c2000001"},
},
{
description: "ScaleSet should not get node identity for non-existing nodes",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "agente6c2000005",
scaleSet: "ss",
computerName: "vmssee6c2",
expectError: true,
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, test.description)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
ss.cloud.VirtualMachineScaleSetsClient = mockVMSSClient
ss.cloud.VirtualMachineScaleSetVMsClient = mockVMSSVMClient
expectedScaleSet := buildTestVMSS(test.scaleSet, test.computerName)
mockVMSSClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachineScaleSet{expectedScaleSet}, nil).AnyTimes()
expectedVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, test.scaleSet, "", 0, test.vmList, "", false)
mockVMSSVMClient.EXPECT().List(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedVMs, nil).AnyTimes()
mockVMsClient := ss.cloud.VirtualMachinesClient.(*mockvmclient.MockInterface)
mockVMsClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachine{}, nil).AnyTimes()
nodeID, err := ss.getNodeIdentityByNodeName(test.nodeName, azcache.CacheReadTypeDefault)
if test.expectError {
assert.Error(t, err, test.description)
continue
}
assert.NoError(t, err, test.description)
assert.Equal(t, test.expected, nodeID, test.description)
}
}
func TestGetInstanceIDByNodeName(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
scaleSet string
vmList []string
nodeName string
expected string
expectError bool
}{
{
description: "ScaleSet should get instance by node name",
scaleSet: "ss",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "vmssee6c2000001",
expected: "/subscriptions/script/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/ss/virtualMachines/1",
},
{
description: "ScaleSet should get instance by node name with upper cases hostname",
scaleSet: "ss",
vmList: []string{"VMSSEE6C2000000", "VMSSEE6C2000001"},
nodeName: "vmssee6c2000000",
expected: "/subscriptions/script/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/ss/virtualMachines/0",
},
{
description: "ScaleSet should not get instance for non-exist nodes",
scaleSet: "ss",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "agente6c2000005",
expectError: true,
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, test.description)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
ss.cloud.VirtualMachineScaleSetsClient = mockVMSSClient
ss.cloud.VirtualMachineScaleSetVMsClient = mockVMSSVMClient
expectedScaleSet := buildTestVMSS(test.scaleSet, "vmssee6c2")
mockVMSSClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachineScaleSet{expectedScaleSet}, nil).AnyTimes()
expectedVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, test.scaleSet, "", 0, test.vmList, "", false)
mockVMSSVMClient.EXPECT().List(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedVMs, nil).AnyTimes()
mockVMsClient := ss.cloud.VirtualMachinesClient.(*mockvmclient.MockInterface)
mockVMsClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachine{}, nil).AnyTimes()
real, err := ss.GetInstanceIDByNodeName(test.nodeName)
if test.expectError {
assert.Error(t, err, test.description)
continue
}
assert.NoError(t, err, test.description)
assert.Equal(t, test.expected, real, test.description)
}
}
func TestGetZoneByNodeName(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
scaleSet string
nodeName string
location string
zone string
expected string
vmList []string
faultDomain int32
expectError bool
}{
{
description: "ScaleSet should get faultDomain for non-zoned nodes",
scaleSet: "ss",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "vmssee6c2000000",
faultDomain: 3,
expected: "3",
},
{
description: "ScaleSet should get availability zone for zoned nodes",
scaleSet: "ss",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "vmssee6c2000000",
zone: "2",
faultDomain: 3,
expected: "westus-2",
},
{
description: "ScaleSet should get availability zone in lower cases",
scaleSet: "ss",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "vmssee6c2000000",
location: "WestUS",
zone: "2",
faultDomain: 3,
expected: "westus-2",
},
{
description: "ScaleSet should return error for non-exist nodes",
scaleSet: "ss",
faultDomain: 3,
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "agente6c2000005",
expectError: true,
},
}
for _, test := range testCases {
cloud := GetTestCloud(ctrl)
if test.location != "" {
cloud.Location = test.location
}
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, test.description)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
ss.cloud.VirtualMachineScaleSetsClient = mockVMSSClient
ss.cloud.VirtualMachineScaleSetVMsClient = mockVMSSVMClient
expectedScaleSet := buildTestVMSS(test.scaleSet, "vmssee6c2")
mockVMSSClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachineScaleSet{expectedScaleSet}, nil).AnyTimes()
expectedVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, test.scaleSet, test.zone, test.faultDomain, test.vmList, "", false)
mockVMSSVMClient.EXPECT().List(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedVMs, nil).AnyTimes()
mockVMsClient := ss.cloud.VirtualMachinesClient.(*mockvmclient.MockInterface)
mockVMsClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachine{}, nil).AnyTimes()
real, err := ss.GetZoneByNodeName(test.nodeName)
if test.expectError {
assert.Error(t, err, test.description)
continue
}
assert.NoError(t, err, test.description)
assert.Equal(t, test.expected, real.FailureDomain, test.description)
assert.Equal(t, strings.ToLower(cloud.Location), real.Region, test.description)
}
}
func TestGetIPByNodeName(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
scaleSet string
vmList []string
nodeName string
expected []string
expectError bool
}{
{
description: "GetIPByNodeName should get node's privateIP and publicIP",
scaleSet: "ss",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "vmssee6c2000000",
expected: []string{fakePrivateIP, fakePublicIP},
},
{
description: "GetIPByNodeName should return error for non-exist nodes",
scaleSet: "ss",
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
nodeName: "agente6c2000005",
expectError: true,
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, test.description)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
mockInterfaceClient := mockinterfaceclient.NewMockInterface(ctrl)
mockPIPClient := mockpublicipclient.NewMockInterface(ctrl)
ss.cloud.VirtualMachineScaleSetsClient = mockVMSSClient
ss.cloud.VirtualMachineScaleSetVMsClient = mockVMSSVMClient
ss.cloud.InterfacesClient = mockInterfaceClient
ss.cloud.PublicIPAddressesClient = mockPIPClient
expectedScaleSet := buildTestVMSS(test.scaleSet, "vmssee6c2")
mockVMSSClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachineScaleSet{expectedScaleSet}, nil).AnyTimes()
expectedVMs, expectedInterface, expectedPIP := buildTestVirtualMachineEnv(ss.cloud, test.scaleSet, "", 0, test.vmList, "", false)
mockVMSSVMClient.EXPECT().List(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedVMs, nil).AnyTimes()
mockInterfaceClient.EXPECT().GetVirtualMachineScaleSetNetworkInterface(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedInterface, nil).AnyTimes()
mockPIPClient.EXPECT().GetVirtualMachineScaleSetPublicIPAddress(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedPIP, nil).AnyTimes()
mockVMsClient := ss.cloud.VirtualMachinesClient.(*mockvmclient.MockInterface)
mockVMsClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachine{}, nil).AnyTimes()
privateIP, publicIP, err := ss.GetIPByNodeName(test.nodeName)
if test.expectError {
assert.Error(t, err, test.description)
continue
}
assert.NoError(t, err, test.description)
assert.Equal(t, test.expected, []string{privateIP, publicIP}, test.description)
}
}
func TestGetNodeNameByIPConfigurationID(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
ipConfigurationIDTemplate := "/subscriptions/script/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/%s/virtualMachines/%s/networkInterfaces/%s/ipConfigurations/ipconfig1"
testCases := []struct {
description string
scaleSet string
vmList []string
ipConfigurationID string
expectedNodeName string
expectedScaleSetName string
expectError bool
}{
{
description: "GetNodeNameByIPConfigurationID should get node's Name when the node is existing",
scaleSet: "scaleset1",
ipConfigurationID: fmt.Sprintf(ipConfigurationIDTemplate, "scaleset1", "0", "scaleset1"),
vmList: []string{"vmssee6c2000000", "vmssee6c2000001"},
expectedNodeName: "vmssee6c2000000",
expectedScaleSetName: "scaleset1",
},
{
description: "GetNodeNameByIPConfigurationID should return error for non-exist nodes",
scaleSet: "scaleset2",
ipConfigurationID: fmt.Sprintf(ipConfigurationIDTemplate, "scaleset2", "3", "scaleset1"),
vmList: []string{"vmssee6c2000002", "vmssee6c2000003"},
expectError: true,
},
{
description: "GetNodeNameByIPConfigurationID should return error for wrong ipConfigurationID",
scaleSet: "scaleset3",
ipConfigurationID: "invalid-configuration-id",
vmList: []string{"vmssee6c2000004", "vmssee6c2000005"},
expectError: true,
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, test.description)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
ss.cloud.VirtualMachineScaleSetsClient = mockVMSSClient
ss.cloud.VirtualMachineScaleSetVMsClient = mockVMSSVMClient
expectedScaleSet := buildTestVMSS(test.scaleSet, "vmssee6c2")
mockVMSSClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachineScaleSet{expectedScaleSet}, nil).AnyTimes()
expectedVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, test.scaleSet, "", 0, test.vmList, "", false)
mockVMSSVMClient.EXPECT().List(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedVMs, nil).AnyTimes()
nodeName, scalesetName, err := ss.GetNodeNameByIPConfigurationID(test.ipConfigurationID)
if test.expectError {
assert.Error(t, err, test.description)
continue
}
assert.NoError(t, err, test.description)
assert.Equal(t, test.expectedNodeName, nodeName, test.description)
assert.Equal(t, test.expectedScaleSetName, scalesetName, test.description)
}
}
func TestExtractResourceGroupByVMSSNicID(t *testing.T) {
vmssNicIDTemplate := "/subscriptions/script/resourceGroups/%s/providers/Microsoft.Compute/virtualMachineScaleSets/%s/virtualMachines/%s/networkInterfaces/nic-0"
testCases := []struct {
description string
vmssNicID string
expected string
expectError bool
}{
{
description: "extractResourceGroupByVMSSNicID should get resource group name for vmss nic ID",
vmssNicID: fmt.Sprintf(vmssNicIDTemplate, "rg1", "vmss1", "0"),
expected: "rg1",
},
{
description: "extractResourceGroupByVMSSNicID should return error for VM nic ID",
vmssNicID: "/subscriptions/script/resourceGroups/rg2/providers/Microsoft.Network/networkInterfaces/nic-0",
expectError: true,
},
{
description: "extractResourceGroupByVMSSNicID should return error for wrong vmss nic ID",
vmssNicID: "wrong-nic-id",
expectError: true,
},
}
for _, test := range testCases {
resourceGroup, err := extractResourceGroupByVMSSNicID(test.vmssNicID)
if test.expectError {
assert.Error(t, err, test.description)
continue
}
assert.NoError(t, err, test.description)
assert.Equal(t, test.expected, resourceGroup, test.description)
}
}
func TestGetVMSS(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
existedVMSSName string
vmssName string
vmssListError *retry.Error
expectedErr error
}{
{
description: "getVMSS should return the correct VMSS",
existedVMSSName: "vmss-1",
vmssName: "vmss-1",
},
{
description: "getVMSS should return cloudprovider.InstanceNotFound if there's no matching VMSS",
existedVMSSName: "vmss-1",
vmssName: "vmss-2",
expectedErr: cloudprovider.InstanceNotFound,
},
{
description: "getVMSS should report an error if there's something wrong during an api call",
existedVMSSName: "vmss-1",
vmssName: "vmss-1",
vmssListError: &retry.Error{RawError: fmt.Errorf("error during vmss list")},
expectedErr: fmt.Errorf("Retriable: false, RetryAfter: 0s, HTTPStatusCode: 0, RawError: error during vmss list"),
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, test.description)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
ss.cloud.VirtualMachineScaleSetsClient = mockVMSSClient
expected := compute.VirtualMachineScaleSet{
Name: to.StringPtr(test.existedVMSSName),
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
VirtualMachineProfile: &compute.VirtualMachineScaleSetVMProfile{},
},
}
mockVMSSClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachineScaleSet{expected}, test.vmssListError).AnyTimes()
actual, err := ss.getVMSS(test.vmssName, azcache.CacheReadTypeDefault)
if test.expectedErr != nil {
assert.EqualError(t, test.expectedErr, err.Error(), test.description)
}
if actual != nil {
assert.Equal(t, expected, *actual, test.description)
}
}
}
func TestGetVmssVM(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
nodeName string
existedNodeNames []string
existedVMSSName string
expectedError error
}{
{
description: "getVmssVM should return the correct name of vmss, the instance id of the node, and the corresponding vmss instance",
nodeName: "vmss-vm-000000",
existedNodeNames: []string{"vmss-vm-000000"},
existedVMSSName: testVMSSName,
},
{
description: "getVmssVM should report an error of instance not found if there's no matches",
nodeName: "vmss-vm-000001",
existedNodeNames: []string{"vmss-vm-000000"},
existedVMSSName: testVMSSName,
expectedError: cloudprovider.InstanceNotFound,
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, test.description)
expectedVMSS := buildTestVMSS(test.existedVMSSName, "vmss-vm-")
mockVMSSClient := ss.cloud.VirtualMachineScaleSetsClient.(*mockvmssclient.MockInterface)
mockVMSSClient.EXPECT().List(gomock.Any(), ss.ResourceGroup).Return([]compute.VirtualMachineScaleSet{expectedVMSS}, nil).AnyTimes()
expectedVMSSVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, test.existedVMSSName, "", 0, test.existedNodeNames, "", false)
var expectedVMSSVM compute.VirtualMachineScaleSetVM
for _, expected := range expectedVMSSVMs {
if strings.EqualFold(*expected.OsProfile.ComputerName, test.nodeName) {
expectedVMSSVM = expected
}
}
mockVMSSVMClient := ss.cloud.VirtualMachineScaleSetVMsClient.(*mockvmssvmclient.MockInterface)
mockVMSSVMClient.EXPECT().List(gomock.Any(), ss.ResourceGroup, test.existedVMSSName, gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
_, _, vmssVM, err := ss.getVmssVM(test.nodeName, azcache.CacheReadTypeDefault)
if vmssVM != nil {
assert.Equal(t, expectedVMSSVM, *vmssVM, test.description)
}
assert.Equal(t, test.expectedError, err, test.description)
}
}
func TestGetPowerStatusByNodeName(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
vmList []string
nilStatus bool
expectedPowerState string
expectedErr error
}{
{
description: "GetPowerStatusByNodeName should return the correct power state",
vmList: []string{"vmss-vm-000001"},
expectedPowerState: "Running",
},
{
description: "GetPowerStatusByNodeName should return vmPowerStateStopped when the vm.InstanceView.Statuses is nil",
vmList: []string{"vmss-vm-000001"},
nilStatus: true,
expectedPowerState: vmPowerStateStopped,
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, "unexpected error when creating test VMSS")
expectedVMSS := buildTestVMSS(testVMSSName, "vmss-vm-")
mockVMSSClient := ss.cloud.VirtualMachineScaleSetsClient.(*mockvmssclient.MockInterface)
mockVMSSClient.EXPECT().List(gomock.Any(), ss.ResourceGroup).Return([]compute.VirtualMachineScaleSet{expectedVMSS}, nil).AnyTimes()
expectedVMSSVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, testVMSSName, "", 0, test.vmList, "", false)
mockVMSSVMClient := ss.cloud.VirtualMachineScaleSetVMsClient.(*mockvmssvmclient.MockInterface)
if test.nilStatus {
expectedVMSSVMs[0].InstanceView.Statuses = nil
}
mockVMSSVMClient.EXPECT().List(gomock.Any(), ss.ResourceGroup, testVMSSName, gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
mockVMsClient := ss.cloud.VirtualMachinesClient.(*mockvmclient.MockInterface)
mockVMsClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachine{}, nil).AnyTimes()
powerState, err := ss.GetPowerStatusByNodeName("vmss-vm-000001")
assert.Equal(t, test.expectedErr, err, test.description+", but an error occurs")
assert.Equal(t, test.expectedPowerState, powerState, test.description)
}
}
func TestGetProvisioningStateByNodeName(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
vmList []string
provisioningState string
expectedProvisioningState string
expectedErr error
}{
{
description: "GetProvisioningStateByNodeName should return empty value when the vm.ProvisioningState is nil",
provisioningState: "",
vmList: []string{"vmss-vm-000001"},
expectedProvisioningState: "",
},
{
description: "GetProvisioningStateByNodeName should return Succeeded when the vm is running",
provisioningState: "Succeeded",
vmList: []string{"vmss-vm-000001"},
expectedProvisioningState: "Succeeded",
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, "unexpected error when creating test VMSS")
expectedVMSS := buildTestVMSS(testVMSSName, "vmss-vm-")
mockVMSSClient := ss.cloud.VirtualMachineScaleSetsClient.(*mockvmssclient.MockInterface)
mockVMSSClient.EXPECT().List(gomock.Any(), ss.ResourceGroup).Return([]compute.VirtualMachineScaleSet{expectedVMSS}, nil).AnyTimes()
expectedVMSSVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, testVMSSName, "", 0, test.vmList, "", false)
mockVMSSVMClient := ss.cloud.VirtualMachineScaleSetVMsClient.(*mockvmssvmclient.MockInterface)
if test.provisioningState != "" {
expectedVMSSVMs[0].ProvisioningState = to.StringPtr(test.provisioningState)
} else {
expectedVMSSVMs[0].ProvisioningState = nil
}
mockVMSSVMClient.EXPECT().List(gomock.Any(), ss.ResourceGroup, testVMSSName, gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
mockVMsClient := ss.cloud.VirtualMachinesClient.(*mockvmclient.MockInterface)
mockVMsClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachine{}, nil).AnyTimes()
provisioningState, err := ss.GetProvisioningStateByNodeName("vmss-vm-000001")
assert.Equal(t, test.expectedErr, err, test.description+", but an error occurs")
assert.Equal(t, test.expectedProvisioningState, provisioningState, test.description)
}
}
func TestGetVmssVMByInstanceID(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
instanceID string
vmList []string
expectedErr error
}{
{
description: "GetVmssVMByInstanceID should return the correct VMSS VM",
instanceID: "0",
vmList: []string{"vmss-vm-000000"},
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, "unexpected error when creating test VMSS")
expectedVMSS := compute.VirtualMachineScaleSet{
Name: to.StringPtr(testVMSSName),
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{
VirtualMachineProfile: &compute.VirtualMachineScaleSetVMProfile{},
},
}
mockVMSSClient := ss.cloud.VirtualMachineScaleSetsClient.(*mockvmssclient.MockInterface)
mockVMSSClient.EXPECT().List(gomock.Any(), ss.ResourceGroup).Return([]compute.VirtualMachineScaleSet{expectedVMSS}, nil).AnyTimes()
expectedVMSSVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, testVMSSName, "", 0, test.vmList, "", false)
mockVMSSVMClient := ss.cloud.VirtualMachineScaleSetVMsClient.(*mockvmssvmclient.MockInterface)
mockVMSSVMClient.EXPECT().List(gomock.Any(), ss.ResourceGroup, testVMSSName, gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
vm, err := ss.getVmssVMByInstanceID(ss.ResourceGroup, testVMSSName, test.instanceID, azcache.CacheReadTypeDefault)
assert.Equal(t, test.expectedErr, err, test.description+", but an error occurs")
assert.Equal(t, expectedVMSSVMs[0], *vm, test.description)
}
}
func TestGetInstanceTypeByNodeName(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
vmList []string
vmClientErr *retry.Error
expectedType string
expectedErr error
}{
{
description: "GetInstanceTypeByNodeName should return the correct instance type",
vmList: []string{"vmss-vm-000000"},
expectedType: "sku",
},
{
description: "GetInstanceTypeByNodeName should report the error that occurs",
vmList: []string{"vmss-vm-000000"},
vmClientErr: &retry.Error{RawError: fmt.Errorf("error")},
expectedType: "",
expectedErr: fmt.Errorf("newAvailabilitySetNodesCache: failed to list vms in the resource group rg: Retriable: false, RetryAfter: 0s, HTTPStatusCode: 0, RawError: error"),
},
}
for _, test := range testCases {
ss, err := NewTestScaleSet(ctrl)
assert.NoError(t, err, "unexpected error when creating test VMSS")
expectedVMSS := buildTestVMSS(testVMSSName, "vmss-vm-")
mockVMSSClient := ss.cloud.VirtualMachineScaleSetsClient.(*mockvmssclient.MockInterface)
mockVMSSClient.EXPECT().List(gomock.Any(), ss.ResourceGroup).Return([]compute.VirtualMachineScaleSet{expectedVMSS}, nil).AnyTimes()
expectedVMSSVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, testVMSSName, "", 0, test.vmList, "", false)
mockVMSSVMClient := ss.cloud.VirtualMachineScaleSetVMsClient.(*mockvmssvmclient.MockInterface)
mockVMSSVMClient.EXPECT().List(gomock.Any(), ss.ResourceGroup, testVMSSName, gomock.Any()).Return(expectedVMSSVMs, nil).AnyTimes()
mockVMClient := ss.cloud.VirtualMachinesClient.(*mockvmclient.MockInterface)
mockVMClient.EXPECT().List(gomock.Any(), gomock.Any()).Return(nil, test.vmClientErr).AnyTimes()
sku, err := ss.GetInstanceTypeByNodeName("vmss-vm-000000")
if test.expectedErr != nil {
assert.EqualError(t, err, test.expectedErr.Error(), test.description)
}
assert.Equal(t, test.expectedType, sku, test.description)
}
}
func TestGetPrimaryInterfaceID(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
testCases := []struct {
description string
existedInterfaces []compute.NetworkInterfaceReference
expectedID string
expectedErr error
}{
{
description: "GetPrimaryInterfaceID should return the ID of the primary NIC on the VMSS VM",
existedInterfaces: []compute.NetworkInterfaceReference{
{
ID: to.StringPtr("1"),
NetworkInterfaceReferenceProperties: &compute.NetworkInterfaceReferenceProperties{
Primary: to.BoolPtr(true),
},
},
{ID: to.StringPtr("2")},
},
expectedID: "1",
},
{
description: "GetPrimaryInterfaceID should report an error if there's no primary NIC on the VMSS VM",
existedInterfaces: []compute.NetworkInterfaceReference{
{
ID: to.StringPtr("1"),
NetworkInterfaceReferenceProperties: &compute.NetworkInterfaceReferenceProperties{
Primary: to.BoolPtr(false),
},
},
{
ID: to.StringPtr("2"),
NetworkInterfaceReferenceProperties: &compute.NetworkInterfaceReferenceProperties{
Primary: to.BoolPtr(false),
},
},
},
expectedErr: fmt.Errorf("failed to find a primary nic for the vm. vmname=\"vm\""),
},
{
description: "GetPrimaryInterfaceID should report an error if there's no network interface on the VMSS VM",
existedInterfaces: []compute.NetworkInterfaceReference{},
expectedErr: fmt.Errorf("failed to find the network interfaces for vm vm"),
},