kubernetes azure_vmss_cache_test 源码
kubernetes azure_vmss_cache_test 代码
文件路径:/staging/src/k8s.io/legacy-cloud-providers/azure/azure_vmss_cache_test.go
//go:build !providerless
// +build !providerless
/*
Copyright 2018 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 (
"sync"
"testing"
"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2019-12-01/compute"
"github.com/Azure/go-autorest/autorest/to"
"github.com/golang/mock/gomock"
"github.com/stretchr/testify/assert"
cloudprovider "k8s.io/cloud-provider"
azcache "k8s.io/legacy-cloud-providers/azure/cache"
"k8s.io/legacy-cloud-providers/azure/clients/vmssclient/mockvmssclient"
"k8s.io/legacy-cloud-providers/azure/clients/vmssvmclient/mockvmssvmclient"
)
func TestExtractVmssVMName(t *testing.T) {
cases := []struct {
description string
vmName string
expectError bool
expectedScaleSet string
expectedInstanceID string
}{
{
description: "wrong vmss VM name should report error",
vmName: "vm1234",
expectError: true,
},
{
description: "wrong VM name separator should report error",
vmName: "vm-1234",
expectError: true,
},
{
description: "correct vmss VM name should return correct scaleSet and instanceID",
vmName: "vm_1234",
expectedScaleSet: "vm",
expectedInstanceID: "1234",
},
{
description: "correct vmss VM name with Extra Separator should return correct scaleSet and instanceID",
vmName: "vm_test_1234",
expectedScaleSet: "vm_test",
expectedInstanceID: "1234",
},
}
for _, c := range cases {
ssName, instanceID, err := extractVmssVMName(c.vmName)
if c.expectError {
assert.Error(t, err, c.description)
continue
}
assert.Equal(t, c.expectedScaleSet, ssName, c.description)
assert.Equal(t, c.expectedInstanceID, instanceID, c.description)
}
}
func TestVMSSVMCache(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
vmssName := "vmss"
vmList := []string{"vmssee6c2000000", "vmssee6c2000001", "vmssee6c2000002"}
ss, err := newTestScaleSet(ctrl)
assert.NoError(t, err)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
ss.cloud.VirtualMachineScaleSetsClient = mockVMSSClient
ss.cloud.VirtualMachineScaleSetVMsClient = mockVMSSVMClient
expectedScaleSet := buildTestVMSS(vmssName, "vmssee6c2")
mockVMSSClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachineScaleSet{expectedScaleSet}, nil).AnyTimes()
expectedVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, vmssName, "", 0, vmList, "", false)
mockVMSSVMClient.EXPECT().List(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedVMs, nil).AnyTimes()
// validate getting VMSS VM via cache.
for i := range expectedVMs {
vm := expectedVMs[i]
vmName := to.String(vm.OsProfile.ComputerName)
ssName, instanceID, realVM, err := ss.getVmssVM(vmName, azcache.CacheReadTypeDefault)
assert.NoError(t, err)
assert.Equal(t, "vmss", ssName)
assert.Equal(t, to.String(vm.InstanceID), instanceID)
assert.Equal(t, &vm, realVM)
}
// validate deleteCacheForNode().
vm := expectedVMs[0]
vmName := to.String(vm.OsProfile.ComputerName)
err = ss.deleteCacheForNode(vmName)
assert.NoError(t, err)
// the VM should be removed from cache after deleteCacheForNode().
cacheKey, cache, err := ss.getVMSSVMCache("rg", vmssName)
assert.NoError(t, err)
cached, err := cache.Get(cacheKey, azcache.CacheReadTypeDefault)
assert.NoError(t, err)
cachedVirtualMachines := cached.(*sync.Map)
_, ok := cachedVirtualMachines.Load(vmName)
assert.Equal(t, false, ok)
// the VM should be back after another cache refresh.
ssName, instanceID, realVM, err := ss.getVmssVM(vmName, azcache.CacheReadTypeDefault)
assert.NoError(t, err)
assert.Equal(t, "vmss", ssName)
assert.Equal(t, to.String(vm.InstanceID), instanceID)
assert.Equal(t, &vm, realVM)
}
func TestVMSSVMCacheWithDeletingNodes(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
vmssName := "vmss"
vmList := []string{"vmssee6c2000000", "vmssee6c2000001", "vmssee6c2000002"}
ss, err := newTestScaleSetWithState(ctrl)
assert.NoError(t, err)
mockVMSSClient := mockvmssclient.NewMockInterface(ctrl)
mockVMSSVMClient := mockvmssvmclient.NewMockInterface(ctrl)
ss.cloud.VirtualMachineScaleSetsClient = mockVMSSClient
ss.cloud.VirtualMachineScaleSetVMsClient = mockVMSSVMClient
expectedScaleSet := compute.VirtualMachineScaleSet{
Name: &vmssName,
VirtualMachineScaleSetProperties: &compute.VirtualMachineScaleSetProperties{},
}
mockVMSSClient.EXPECT().List(gomock.Any(), gomock.Any()).Return([]compute.VirtualMachineScaleSet{expectedScaleSet}, nil).AnyTimes()
expectedVMs, _, _ := buildTestVirtualMachineEnv(ss.cloud, vmssName, "", 0, vmList, string(compute.ProvisioningStateDeleting), false)
mockVMSSVMClient.EXPECT().List(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(expectedVMs, nil).AnyTimes()
for i := range expectedVMs {
vm := expectedVMs[i]
vmName := to.String(vm.OsProfile.ComputerName)
assert.Equal(t, vm.ProvisioningState, to.StringPtr(string(compute.ProvisioningStateDeleting)))
ssName, instanceID, realVM, err := ss.getVmssVM(vmName, azcache.CacheReadTypeDefault)
assert.Nil(t, realVM)
assert.Equal(t, "", ssName)
assert.Equal(t, instanceID, ssName)
assert.Equal(t, cloudprovider.InstanceNotFound, err)
}
}
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