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localdiskclaim_task_worker.go
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localdiskclaim_task_worker.go
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package node
import (
"context"
"fmt"
"reflect"
"github.com/hwameistor/hwameistor/pkg/apis/hwameistor/v1alpha1"
"github.com/hwameistor/hwameistor/pkg/local-disk-manager/member/types"
log "github.com/sirupsen/logrus"
"golang.org/x/sync/errgroup"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
types2 "k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
)
func (m *nodeManager) startDiskClaimTaskWorker(ctx context.Context) {
m.logger.Info("Start LocalDiskClaim worker now")
go func() {
for {
task, shutdown := m.diskClaimTaskQueue.Get()
if shutdown {
m.logger.Info("Stop the LocalDiskClaim worker")
break
}
if err := m.processLocalDiskClaim(task); err != nil {
m.logger.WithFields(log.Fields{"task": task, "error": err.Error()}).Error("Failed to process LocalDiskClaim task, retry later")
m.diskClaimTaskQueue.AddRateLimited(task)
} else {
m.logger.WithFields(log.Fields{"task": task}).Debug("Completed a LocalDiskClaim task")
m.diskClaimTaskQueue.Forget(task)
}
m.diskClaimTaskQueue.Done(task)
}
}()
// We are done, Stop Node Manager
<-ctx.Done()
m.diskClaimTaskQueue.Shutdown()
return
}
// processLocalDiskClaim handle the diskClaim which owned by LocalDiskManager and setup DiskPool with the disks backing the claim
func (m *nodeManager) processLocalDiskClaim(diskClaim string) error {
logCtx := m.logger.WithField("diskClaim", diskClaim)
logCtx.Info("Start processing LocalDiskClaim")
localDiskClaim := &v1alpha1.LocalDiskClaim{}
err := m.k8sClient.Get(context.TODO(), client.ObjectKey{Name: diskClaim}, localDiskClaim)
if err != nil {
if errors.IsNotFound(err) {
logCtx.Info("LocalDiskClaim has been deleted already, skip processing this object")
return nil
}
return err
}
// handle diskClaim according to diskClaim status
switch localDiskClaim.Status.Status {
case v1alpha1.LocalDiskClaimStatusBound:
err = m.processLocalDiskClaimBound(localDiskClaim)
default:
logCtx.WithField("Status", localDiskClaim.Status.Status).Info("Skip processing LocalDiskClaim")
return nil
}
return err
}
// processLocalDiskClaimBound use all disks backing the claim to set up DiskPool
func (m *nodeManager) processLocalDiskClaimBound(diskClaim *v1alpha1.LocalDiskClaim) (err error) {
logCtx := m.logger.WithFields(log.Fields{"diskClaim": diskClaim.Name})
logCtx.Debugf("Start processing Bound LocalDiskClaim")
// fetch disks that bounded by the claim
allocatedDisks, err := fetchBoundedLocalDisks(m.k8sClient, diskClaim)
if err != nil {
logCtx.WithError(err).Error("Failed to fetch allocated LocalDisk")
return err
}
logCtx.Infof("Found %d LocalDisk(s) bound by LocalDiskClaim", len(allocatedDisks))
// find out disks that need to be extended actually
var tobeExtendedDisks []*v1alpha1.LocalDisk
poolExtendedSet := make(map[string]struct{})
for _, localDisk := range allocatedDisks {
poolName := types.GetLocalDiskPoolName(localDisk.Spec.DiskAttributes.Type)
poolExtendedSet[poolName] = struct{}{}
exist := m.registryManager.DiskExist(localDisk.Spec.DevicePath)
// skip exist disk
if exist {
logCtx.Infof("Disk %s already exist in pool, skip it", localDisk.Spec.DevicePath)
continue
}
tobeExtendedDisks = append(tobeExtendedDisks, localDisk.DeepCopy())
}
// defer update pool extend record
defer func() {
if err == nil {
poolNames := make([]string, 0, len(poolExtendedSet))
for poolName := range poolExtendedSet {
poolNames = append(poolNames, poolName)
}
if err = m.updatePoolExtendRecord(poolNames, diskClaim.Spec); err != nil {
logCtx.WithFields(log.Fields{"poolNames": poolNames}).WithError(err).Error("Failed to update extend record")
}
}
}()
if len(tobeExtendedDisks) == 0 {
logCtx.Info("No LocalDisk need to process")
return confirmLocalDisksConsumed(m.k8sClient, diskClaim)
}
logCtx.Infof("Found %d LocalDisk(s) need to process", len(tobeExtendedDisks))
// record pool extend events
defer func() {
if err != nil {
m.recorder.Event(diskClaim, v1.EventTypeWarning, string(v1alpha1.StorageExpandFailure), fmt.Sprintf("Failed to expand storage capacity, err: %s", err.Error()))
return
}
m.recorder.Event(diskClaim, v1.EventTypeNormal, string(v1alpha1.StorageExpandSuccess), fmt.Sprintf("Succeed to expand storage capacity"))
}()
for _, disk := range tobeExtendedDisks {
poolName := types.GetLocalDiskPoolName(disk.Spec.DiskAttributes.Type)
ok, err := m.poolManager.ExtendPool(poolName, disk.Spec.DevLinks, disk.Spec.DiskAttributes.SerialNumber)
if ok {
logCtx.WithFields(log.Fields{"poolName": poolName, "extendDisk": disk.Spec.DevicePath}).Infof("Succeed to expand DiskPool")
} else if err != nil {
logCtx.WithError(err).WithFields(log.Fields{"poolName": poolName, "extendDisk": disk.Spec.DevicePath}).Errorf("Failed to expand DiskPool")
return err
}
}
// finally confirm disks consumed
return confirmLocalDisksConsumed(m.k8sClient, diskClaim)
}
func (m *nodeManager) updatePoolExtendRecord(poolNames []string, record v1alpha1.LocalDiskClaimSpec) error {
var storageNode v1alpha1.LocalDiskNode
err := m.k8sClient.Get(context.TODO(), types2.NamespacedName{Name: m.nodeName}, &storageNode)
if err != nil {
return err
}
storageNodeOld := storageNode.DeepCopy()
// init records map
if storageNode.Status.PoolExtendRecords == nil {
storageNode.Status.PoolExtendRecords = make(map[string]v1alpha1.LocalDiskClaimSpecArray)
}
// append pool records
for _, poolName := range poolNames {
if _, ok := storageNode.Status.PoolExtendRecords[poolName]; !ok {
storageNode.Status.PoolExtendRecords[poolName] = make(v1alpha1.LocalDiskClaimSpecArray, 0)
}
// append this record if not exist
exist := false
for _, poolRecord := range storageNode.Status.PoolExtendRecords[poolName] {
if reflect.DeepEqual(poolRecord, record) {
exist = true
}
}
if !exist {
storageNode.Status.PoolExtendRecords[poolName] = append(storageNode.Status.PoolExtendRecords[poolName], record)
}
}
return m.k8sClient.Status().Patch(context.TODO(), &storageNode, client.MergeFrom(storageNodeOld))
}
func fetchBoundedLocalDisks(cli client.Client, diskClaim *v1alpha1.LocalDiskClaim) ([]*v1alpha1.LocalDisk, error) {
var allocatedDisks []*v1alpha1.LocalDisk
eg, _ := errgroup.WithContext(context.TODO())
for _, localDisk := range diskClaim.Spec.DiskRefs {
diskName := localDisk.Name
eg.Go(func() error {
disk, err := fetchLocalDisk(cli, diskName)
if err != nil {
return err
}
allocatedDisks = append(allocatedDisks, disk)
return nil
})
}
return allocatedDisks, eg.Wait()
}
func fetchLocalDisk(cli client.Client, localDisk string) (*v1alpha1.LocalDisk, error) {
localDiskObject := &v1alpha1.LocalDisk{}
err := cli.Get(context.TODO(), client.ObjectKey{Name: localDisk}, localDiskObject)
if err != nil {
if errors.IsNotFound(err) {
log.Infof("LocalDisk %s has been deleted already", localDisk)
return nil, err
}
}
return localDiskObject, err
}
func confirmLocalDisksConsumed(cli client.Client, diskClaim *v1alpha1.LocalDiskClaim) error {
diskClaim.Status.Status = v1alpha1.LocalDiskClaimStatusConsumed
return cli.Status().Update(context.TODO(), diskClaim)
}