mirror of https://github.com/k3s-io/k3s
130 lines
4.0 KiB
Go
130 lines
4.0 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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"path"
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"strings"
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"github.com/Azure/azure-sdk-for-go/arm/disk"
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storage "github.com/Azure/azure-sdk-for-go/arm/storage"
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"github.com/golang/glog"
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kwait "k8s.io/apimachinery/pkg/util/wait"
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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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func newManagedDiskController(common *controllerCommon) (*ManagedDiskController, error) {
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return &ManagedDiskController{common: common}, nil
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}
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//CreateManagedDisk : create managed disk
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func (c *ManagedDiskController) CreateManagedDisk(diskName string, storageAccountType storage.SkuName, sizeGB int, tags map[string]string) (string, error) {
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glog.V(4).Infof("azureDisk - creating new managed Name:%s StorageAccountType:%s Size:%v", diskName, storageAccountType, sizeGB)
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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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// insert original tags to newTags
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if tags != nil {
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for k, v := range 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(sizeGB)
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model := disk.Model{
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Location: &c.common.location,
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Tags: &newTags,
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Properties: &disk.Properties{
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AccountType: disk.StorageAccountTypes(storageAccountType),
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DiskSizeGB: &diskSizeGB,
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CreationData: &disk.CreationData{CreateOption: disk.Empty},
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}}
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cancel := make(chan struct{})
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respChan, errChan := c.common.cloud.DisksClient.CreateOrUpdate(c.common.resourceGroup, diskName, model, cancel)
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<-respChan
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err := <-errChan
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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(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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glog.V(2).Infof("azureDisk - created new MD Name:%s StorageAccountType:%s Size:%v but was unable to confirm provisioningState in poll process", diskName, storageAccountType, sizeGB)
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} else {
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glog.V(2).Infof("azureDisk - created new MD Name:%s StorageAccountType:%s Size:%v", diskName, storageAccountType, 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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cancel := make(chan struct{})
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respChan, errChan := c.common.cloud.DisksClient.Delete(c.common.resourceGroup, diskName, cancel)
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<-respChan
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err := <-errChan
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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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glog.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(diskName string) (string, string, error) {
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result, err := c.common.cloud.DisksClient.Get(c.common.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.Properties != nil && (*result.Properties).ProvisioningState != nil {
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return *(*result.Properties).ProvisioningState, *result.ID, nil
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}
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return "", "", err
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}
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