156602408a
set timeout for get azure account operation use const for timeout value remove get azure accounts in the init process add lock for account init
325 lines
10 KiB
Go
325 lines
10 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package azure
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import (
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"context"
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"fmt"
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"path"
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"strconv"
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"strings"
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"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2018-10-01/compute"
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"github.com/Azure/go-autorest/autorest/to"
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"k8s.io/klog"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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kwait "k8s.io/apimachinery/pkg/util/wait"
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cloudvolume "k8s.io/cloud-provider/volume"
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volumehelpers "k8s.io/cloud-provider/volume/helpers"
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)
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const (
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// default IOPS Caps & Throughput Cap (MBps) per https://docs.microsoft.com/en-us/azure/virtual-machines/linux/disks-ultra-ssd
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defaultDiskIOPSReadWrite = 500
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defaultDiskMBpsReadWrite = 100
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)
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//ManagedDiskController : managed disk controller struct
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type ManagedDiskController struct {
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common *controllerCommon
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}
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// ManagedDiskOptions specifies the options of managed disks.
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type ManagedDiskOptions struct {
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// The name of the disk.
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DiskName string
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// The size in GB.
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SizeGB int
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// The name of PVC.
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PVCName string
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// The name of resource group.
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ResourceGroup string
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// The AvailabilityZone to create the disk.
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AvailabilityZone string
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// The tags of the disk.
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Tags map[string]string
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// The SKU of storage account.
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StorageAccountType compute.DiskStorageAccountTypes
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// IOPS Caps for UltraSSD disk
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DiskIOPSReadWrite string
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// Throughput Cap (MBps) for UltraSSD disk
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DiskMBpsReadWrite string
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}
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//CreateManagedDisk : create managed disk
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func (c *ManagedDiskController) CreateManagedDisk(options *ManagedDiskOptions) (string, error) {
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var err error
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klog.V(4).Infof("azureDisk - creating new managed Name:%s StorageAccountType:%s Size:%v", options.DiskName, options.StorageAccountType, options.SizeGB)
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var createZones *[]string
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if len(options.AvailabilityZone) > 0 {
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zoneList := []string{c.common.cloud.GetZoneID(options.AvailabilityZone)}
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createZones = &zoneList
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}
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// insert original tags to newTags
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newTags := make(map[string]*string)
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azureDDTag := "kubernetes-azure-dd"
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newTags["created-by"] = &azureDDTag
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if options.Tags != nil {
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for k, v := range options.Tags {
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// Azure won't allow / (forward slash) in tags
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newKey := strings.Replace(k, "/", "-", -1)
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newValue := strings.Replace(v, "/", "-", -1)
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newTags[newKey] = &newValue
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}
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}
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diskSizeGB := int32(options.SizeGB)
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diskSku := compute.DiskStorageAccountTypes(options.StorageAccountType)
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diskProperties := compute.DiskProperties{
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DiskSizeGB: &diskSizeGB,
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CreationData: &compute.CreationData{CreateOption: compute.Empty},
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}
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if diskSku == compute.UltraSSDLRS {
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diskIOPSReadWrite := int64(defaultDiskIOPSReadWrite)
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if options.DiskIOPSReadWrite != "" {
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v, err := strconv.Atoi(options.DiskIOPSReadWrite)
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if err != nil {
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return "", fmt.Errorf("AzureDisk - failed to parse DiskIOPSReadWrite: %v", err)
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}
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diskIOPSReadWrite = int64(v)
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}
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diskProperties.DiskIOPSReadWrite = to.Int64Ptr(diskIOPSReadWrite)
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diskMBpsReadWrite := int32(defaultDiskMBpsReadWrite)
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if options.DiskMBpsReadWrite != "" {
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v, err := strconv.Atoi(options.DiskMBpsReadWrite)
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if err != nil {
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return "", fmt.Errorf("AzureDisk - failed to parse DiskMBpsReadWrite: %v", err)
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}
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diskMBpsReadWrite = int32(v)
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}
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diskProperties.DiskMBpsReadWrite = to.Int32Ptr(diskMBpsReadWrite)
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} else {
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if options.DiskIOPSReadWrite != "" {
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return "", fmt.Errorf("AzureDisk - DiskIOPSReadWrite parameter is only applicable in UltraSSD_LRS disk type")
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}
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if options.DiskMBpsReadWrite != "" {
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return "", fmt.Errorf("AzureDisk - DiskMBpsReadWrite parameter is only applicable in UltraSSD_LRS disk type")
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}
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}
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model := compute.Disk{
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Location: &c.common.location,
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Tags: newTags,
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Zones: createZones,
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Sku: &compute.DiskSku{
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Name: diskSku,
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},
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DiskProperties: &diskProperties,
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}
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if options.ResourceGroup == "" {
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options.ResourceGroup = c.common.resourceGroup
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}
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ctx, cancel := getContextWithCancel()
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defer cancel()
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_, err = c.common.cloud.DisksClient.CreateOrUpdate(ctx, options.ResourceGroup, options.DiskName, model)
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if err != nil {
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return "", err
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}
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diskID := ""
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err = kwait.ExponentialBackoff(defaultBackOff, func() (bool, error) {
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provisionState, id, err := c.getDisk(options.ResourceGroup, options.DiskName)
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diskID = id
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// We are waiting for provisioningState==Succeeded
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// We don't want to hand-off managed disks to k8s while they are
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//still being provisioned, this is to avoid some race conditions
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if err != nil {
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return false, err
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}
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if strings.ToLower(provisionState) == "succeeded" {
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return true, nil
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}
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return false, nil
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})
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if err != nil {
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klog.V(2).Infof("azureDisk - created new MD Name:%s StorageAccountType:%s Size:%v but was unable to confirm provisioningState in poll process", options.DiskName, options.StorageAccountType, options.SizeGB)
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} else {
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klog.V(2).Infof("azureDisk - created new MD Name:%s StorageAccountType:%s Size:%v", options.DiskName, options.StorageAccountType, options.SizeGB)
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}
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return diskID, nil
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}
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//DeleteManagedDisk : delete managed disk
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func (c *ManagedDiskController) DeleteManagedDisk(diskURI string) error {
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diskName := path.Base(diskURI)
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resourceGroup, err := getResourceGroupFromDiskURI(diskURI)
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if err != nil {
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return err
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}
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ctx, cancel := getContextWithCancel()
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defer cancel()
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_, err = c.common.cloud.DisksClient.Delete(ctx, resourceGroup, diskName)
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if err != nil {
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return err
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}
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// We don't need poll here, k8s will immediately stop referencing the disk
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// the disk will be eventually deleted - cleanly - by ARM
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klog.V(2).Infof("azureDisk - deleted a managed disk: %s", diskURI)
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return nil
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}
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// return: disk provisionState, diskID, error
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func (c *ManagedDiskController) getDisk(resourceGroup, diskName string) (string, string, error) {
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ctx, cancel := getContextWithCancel()
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defer cancel()
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result, err := c.common.cloud.DisksClient.Get(ctx, resourceGroup, diskName)
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if err != nil {
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return "", "", err
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}
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if result.DiskProperties != nil && (*result.DiskProperties).ProvisioningState != nil {
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return *(*result.DiskProperties).ProvisioningState, *result.ID, nil
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}
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return "", "", err
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}
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// ResizeDisk Expand the disk to new size
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func (c *ManagedDiskController) ResizeDisk(diskURI string, oldSize resource.Quantity, newSize resource.Quantity) (resource.Quantity, error) {
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ctx, cancel := getContextWithCancel()
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defer cancel()
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diskName := path.Base(diskURI)
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resourceGroup, err := getResourceGroupFromDiskURI(diskURI)
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if err != nil {
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return oldSize, err
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}
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result, err := c.common.cloud.DisksClient.Get(ctx, resourceGroup, diskName)
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if err != nil {
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return oldSize, err
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}
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if result.DiskProperties == nil || result.DiskProperties.DiskSizeGB == nil {
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return oldSize, fmt.Errorf("DiskProperties of disk(%s) is nil", diskName)
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}
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// Azure resizes in chunks of GiB (not GB)
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requestGiB := int32(volumehelpers.RoundUpToGiB(newSize))
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newSizeQuant := resource.MustParse(fmt.Sprintf("%dGi", requestGiB))
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klog.V(2).Infof("azureDisk - begin to resize disk(%s) with new size(%d), old size(%v)", diskName, requestGiB, oldSize)
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// If disk already of greater or equal size than requested we return
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if *result.DiskProperties.DiskSizeGB >= requestGiB {
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return newSizeQuant, nil
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}
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result.DiskProperties.DiskSizeGB = &requestGiB
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ctx, cancel = getContextWithCancel()
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defer cancel()
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if _, err := c.common.cloud.DisksClient.CreateOrUpdate(ctx, resourceGroup, diskName, result); err != nil {
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return oldSize, err
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}
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klog.V(2).Infof("azureDisk - resize disk(%s) with new size(%d) completed", diskName, requestGiB)
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return newSizeQuant, nil
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}
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// get resource group name from a managed disk URI, e.g. return {group-name} according to
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// /subscriptions/{sub-id}/resourcegroups/{group-name}/providers/microsoft.compute/disks/{disk-id}
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// according to https://docs.microsoft.com/en-us/rest/api/compute/disks/get
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func getResourceGroupFromDiskURI(diskURI string) (string, error) {
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fields := strings.Split(diskURI, "/")
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if len(fields) != 9 || fields[3] != "resourceGroups" {
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return "", fmt.Errorf("invalid disk URI: %s", diskURI)
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}
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return fields[4], nil
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}
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// GetLabelsForVolume implements PVLabeler.GetLabelsForVolume
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func (c *Cloud) GetLabelsForVolume(ctx context.Context, pv *v1.PersistentVolume) (map[string]string, error) {
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// Ignore if not AzureDisk.
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if pv.Spec.AzureDisk == nil {
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return nil, nil
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}
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// Ignore any volumes that are being provisioned
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if pv.Spec.AzureDisk.DiskName == cloudvolume.ProvisionedVolumeName {
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return nil, nil
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}
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return c.GetAzureDiskLabels(pv.Spec.AzureDisk.DataDiskURI)
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}
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// GetAzureDiskLabels gets availability zone labels for Azuredisk.
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func (c *Cloud) GetAzureDiskLabels(diskURI string) (map[string]string, error) {
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// Get disk's resource group.
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diskName := path.Base(diskURI)
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resourceGroup, err := getResourceGroupFromDiskURI(diskURI)
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if err != nil {
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klog.Errorf("Failed to get resource group for AzureDisk %q: %v", diskName, err)
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return nil, err
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}
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// Get information of the disk.
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ctx, cancel := getContextWithCancel()
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defer cancel()
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disk, err := c.DisksClient.Get(ctx, resourceGroup, diskName)
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if err != nil {
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klog.Errorf("Failed to get information for AzureDisk %q: %v", diskName, err)
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return nil, err
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}
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// Check whether availability zone is specified.
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if disk.Zones == nil || len(*disk.Zones) == 0 {
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klog.V(4).Infof("Azure disk %q is not zoned", diskName)
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return nil, nil
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}
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zones := *disk.Zones
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zoneID, err := strconv.Atoi(zones[0])
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if err != nil {
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return nil, fmt.Errorf("failed to parse zone %v for AzureDisk %v: %v", zones, diskName, err)
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}
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zone := c.makeZone(zoneID)
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klog.V(4).Infof("Got zone %q for Azure disk %q", zone, diskName)
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labels := map[string]string{
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v1.LabelZoneRegion: c.Location,
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v1.LabelZoneFailureDomain: zone,
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}
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return labels, nil
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}
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