/
localdisk.go
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/
localdisk.go
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package localdisk
import (
"context"
"strings"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/client-go/tools/record"
"k8s.io/client-go/tools/reference"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/hwameistor/hwameistor/pkg/apis/hwameistor/v1alpha1"
"github.com/hwameistor/hwameistor/pkg/local-disk-manager/filter"
"github.com/hwameistor/hwameistor/pkg/local-disk-manager/utils/kubernetes"
)
type Handler struct {
client.Client
record.EventRecorder
localDisk *v1alpha1.LocalDisk
filter filter.LocalDiskFilter
}
func NewLocalDiskHandler(cli client.Client, recorder record.EventRecorder) *Handler {
return &Handler{
Client: cli,
EventRecorder: recorder,
}
}
func (ldHandler *Handler) GetLocalDisk(key client.ObjectKey) (*v1alpha1.LocalDisk, error) {
ld := v1alpha1.LocalDisk{}
if err := ldHandler.Get(context.Background(), key, &ld); err != nil {
return nil, err
}
return &ld, nil
}
func (ldHandler *Handler) GetLocalDiskWithLabels(labels labels.Set) (*v1alpha1.LocalDiskList, error) {
list := &v1alpha1.LocalDiskList{
TypeMeta: metav1.TypeMeta{
Kind: "LocalDisk",
APIVersion: "v1alpha1",
},
}
return list, ldHandler.List(context.TODO(), list, &client.ListOptions{LabelSelector: labels.AsSelector()})
}
func (ldHandler *Handler) ListLocalDisk() (*v1alpha1.LocalDiskList, error) {
list := &v1alpha1.LocalDiskList{
TypeMeta: metav1.TypeMeta{
Kind: "LocalDisk",
APIVersion: "v1alpha1",
},
}
err := ldHandler.List(context.TODO(), list, &client.ListOptions{})
return list, err
}
func (ldHandler *Handler) ListNodeLocalDisk(node string) (*v1alpha1.LocalDiskList, error) {
list := &v1alpha1.LocalDiskList{
TypeMeta: metav1.TypeMeta{
Kind: "LocalDisk",
APIVersion: "v1alpha1",
},
}
nodeMatcher := client.MatchingFields{"spec.nodeName": node}
err := ldHandler.List(context.TODO(), list, nodeMatcher)
return list, err
}
// ListLocalDiskByNodeDevicePath returns LocalDisks by given node device path
// This is should only be used when disk serial cannot be found(e.g. trigger by disk remove events)
func (ldHandler *Handler) ListLocalDiskByNodeDevicePath(nodeName, devPath string) ([]v1alpha1.LocalDisk, error) {
var ldList v1alpha1.LocalDiskList
if err := ldHandler.List(context.Background(), &ldList, client.MatchingFields{"spec.nodeName/devicePath": nodeName + "/" + devPath}); err != nil {
return nil, err
}
// NOTES: this logic applies only to scenarios that upgrade after an older version(<=v0.11.2) was installed
var matchedLocalDisks []v1alpha1.LocalDisk
for _, item := range ldList.Items {
if strings.HasPrefix(item.Name, v1alpha1.LocalDiskObjectPrefix) {
matchedLocalDisks = append(matchedLocalDisks, *item.DeepCopy())
}
}
return matchedLocalDisks, nil
}
// ListLocalDiskDirectly query localdisk list from API Server directly
// NOTE: The performance is relatively slow and may cause relatively high latency
func (ldHandler *Handler) ListLocalDiskDirectly() (*v1alpha1.LocalDiskList, error) {
list := &v1alpha1.LocalDiskList{
TypeMeta: metav1.TypeMeta{
Kind: "LocalDisk",
APIVersion: "v1alpha1",
},
}
cli, err := kubernetes.NewClient()
if err != nil {
return nil, err
}
err = cli.List(context.TODO(), list)
return list, err
}
func (ldHandler *Handler) For(ld *v1alpha1.LocalDisk) *Handler {
ldHandler.localDisk = ld
ldHandler.filter = filter.NewLocalDiskFilter(ld)
return ldHandler
}
// UnClaimed Bounded
func (ldHandler *Handler) UnClaimed() bool {
return ldHandler.filter.
Init().
Available().
GetTotalResult()
}
// BoundTo assign disk to ldc
func (ldHandler *Handler) BoundTo(ldc *v1alpha1.LocalDiskClaim) error {
// If this disk has already bound to the ldc, return directly
if ldHandler.localDisk.Spec.ClaimRef != nil &&
ldc.GetUID() == ldHandler.localDisk.Spec.ClaimRef.UID {
return nil
}
// Update the disk.spec.ClaimRef field to indicate that the disk is claimed
ldcRef, _ := reference.GetReference(nil, ldc)
ldHandler.localDisk.Spec.ClaimRef = ldcRef
ldHandler.localDisk.Spec.Owner = ldc.Spec.Owner
err := ldHandler.Update()
if err == nil {
// Record a Bound Event
ldHandler.RecordEvent(v1.EventTypeNormal, v1alpha1.LocalDiskEventReasonBound,
"Bounded by LocalDiskClaim: %v", ldc.GetName())
}
return err
}
func (ldHandler *Handler) SetupStatus(status v1alpha1.LocalDiskState) {
ldHandler.localDisk.Status.State = status
}
func (ldHandler *Handler) SetupLabel(labels labels.Set) {
if ldHandler.localDisk.ObjectMeta.Labels == nil {
ldHandler.localDisk.ObjectMeta.Labels = make(map[string]string)
}
for k, v := range labels {
ldHandler.localDisk.ObjectMeta.Labels[k] = v
}
}
func (ldHandler *Handler) RemoveLabel(labels labels.Set) {
for k := range labels {
delete(ldHandler.localDisk.ObjectMeta.Labels, k)
}
}
func (ldHandler *Handler) UpdateStatus() error {
return ldHandler.Status().Update(context.TODO(), ldHandler.localDisk)
}
func (ldHandler *Handler) Update() error {
return ldHandler.Client.Update(context.TODO(), ldHandler.localDisk)
}
func (ldHandler *Handler) ClaimRef() *v1.ObjectReference {
return ldHandler.localDisk.Spec.ClaimRef
}
func (ldHandler *Handler) ReserveDisk() {
ldHandler.localDisk.Spec.Reserved = true
}
func (ldHandler *Handler) FilterDisk(ldc *v1alpha1.LocalDiskClaim) bool {
// Bound disk
if ldHandler.filter.HasBoundWith(ldc.UID) {
return true
}
// Unbound disk
return ldHandler.filter.
Init().
Available().
HasNotReserved().
OwnerMatch(ldc.Spec.Owner).
NodeMatch(ldc.Spec.NodeName).
Capacity(ldc.Spec.Description.Capacity).
DiskType(ldc.Spec.Description.DiskType).
LdNameMatch(ldc.Spec.Description.LocalDiskNames).
DevPathMatch(ldc.Spec.Description.DevicePaths).
DevType().
NoPartition().
IsNameFormatMatch().
GetTotalResult()
}
func (ldHandler *Handler) GetFilterFailMessages() map[string]bool {
return ldHandler.filter.FailedMessage
}
func (ldHandler *Handler) IsEmpty() bool {
return !ldHandler.localDisk.Spec.HasPartition
}
func (ldHandler *Handler) RecordEvent(eventtype, reason, messageFmt string, args ...interface{}) {
ldHandler.Eventf(ldHandler.localDisk, eventtype, reason, messageFmt, args)
}
func (ldHandler *Handler) SetPartition(hasPartition bool) {
ldHandler.localDisk.Spec.HasPartition = hasPartition
}
func (ldHandler *Handler) SetOwner(owner string) {
ldHandler.localDisk.Spec.Owner = owner
}
func (ldHandler *Handler) PatchDiskOwner(owner string) error {
oldDisk := ldHandler.localDisk.DeepCopy()
ldHandler.SetOwner(owner)
return ldHandler.PatchDiskSpec(client.MergeFrom(oldDisk))
}
func (ldHandler *Handler) PatchDiskSpec(patch client.Patch) error {
return ldHandler.Client.Patch(context.Background(), ldHandler.localDisk, patch)
}