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Fix initialization of volume controller caches.

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Fix PersistentVolumeController.initializeCaches() to pass pointers to volume
or claim to storeObjectUpdate() and add extra functions to enforce that the
right types are checked in the future.


Fixes #28076
This commit is contained in:
Jan Safranek 2016-06-27 13:08:02 +02:00
parent ecfd4aa131
commit 169076e7da
2 changed files with 43 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
pkg/controller/persistentvolume/controller.go
View File

@ -506,7 +506,7 @@ func (ctrl *PersistentVolumeController) updateClaimPhase(claim *api.PersistentVo
glog.V(4).Infof("updating PersistentVolumeClaim[%s]: set phase %s failed: %v", claimToClaimKey(claim), phase, err)
return newClaim, err
}
_, err = storeObjectUpdate(ctrl.claims, newClaim, "claim")
_, err = ctrl.storeClaimUpdate(newClaim)
if err != nil {
glog.V(4).Infof("updating PersistentVolumeClaim[%s]: cannot update internal cache: %v", claimToClaimKey(claim), err)
return newClaim, err
@ -565,7 +565,7 @@ func (ctrl *PersistentVolumeController) updateVolumePhase(volume *api.Persistent
glog.V(4).Infof("updating PersistentVolume[%s]: set phase %s failed: %v", volume.Name, phase, err)
return newVol, err
}
_, err = storeObjectUpdate(ctrl.volumes.store, newVol, "volume")
_, err = ctrl.storeVolumeUpdate(newVol)
if err != nil {
glog.V(4).Infof("updating PersistentVolume[%s]: cannot update internal cache: %v", volume.Name, err)
return newVol, err
@ -650,7 +650,7 @@ func (ctrl *PersistentVolumeController) bindVolumeToClaim(volume *api.Persistent
glog.V(4).Infof("updating PersistentVolume[%s]: binding to %q failed: %v", volume.Name, claimToClaimKey(claim), err)
return newVol, err
}
_, err = storeObjectUpdate(ctrl.volumes.store, newVol, "volume")
_, err = ctrl.storeVolumeUpdate(newVol)
if err != nil {
glog.V(4).Infof("updating PersistentVolume[%s]: cannot update internal cache: %v", volume.Name, err)
return newVol, err
@ -712,7 +712,7 @@ func (ctrl *PersistentVolumeController) bindClaimToVolume(claim *api.PersistentV
glog.V(4).Infof("updating PersistentVolumeClaim[%s]: binding to %q failed: %v", claimToClaimKey(claim), volume.Name, err)
return newClaim, err
}
_, err = storeObjectUpdate(ctrl.claims, newClaim, "claim")
_, err = ctrl.storeClaimUpdate(newClaim)
if err != nil {
glog.V(4).Infof("updating PersistentVolumeClaim[%s]: cannot update internal cache: %v", claimToClaimKey(claim), err)
return newClaim, err
@ -806,7 +806,7 @@ func (ctrl *PersistentVolumeController) unbindVolume(volume *api.PersistentVolum
glog.V(4).Infof("updating PersistentVolume[%s]: rollback failed: %v", volume.Name, err)
return err
}
_, err = storeObjectUpdate(ctrl.volumes.store, newVol, "volume")
_, err = ctrl.storeVolumeUpdate(newVol)
if err != nil {
glog.V(4).Infof("updating PersistentVolume[%s]: cannot update internal cache: %v", volume.Name, err)
return err
@ -1171,7 +1171,7 @@ func (ctrl *PersistentVolumeController) provisionClaimOperation(claimObj interfa
// Save succeeded.
glog.V(3).Infof("volume %q for claim %q saved", volume.Name, claimToClaimKey(claim))
_, err = storeObjectUpdate(ctrl.volumes.store, newVol, "volume")
_, err = ctrl.storeVolumeUpdate(newVol)
if err != nil {
// We will get an "volume added" event soon, this is not a big error
glog.V(4).Infof("provisionClaimOperation [%s]: cannot update internal cache: %v", volume.Name, err)

53
pkg/controller/persistentvolume/controller_base.go
View File

@ -30,6 +30,7 @@ import (
"k8s.io/kubernetes/pkg/client/record"
"k8s.io/kubernetes/pkg/cloudprovider"
"k8s.io/kubernetes/pkg/controller/framework"
"k8s.io/kubernetes/pkg/conversion"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/util/goroutinemap"
vol "k8s.io/kubernetes/pkg/volume"
@ -148,7 +149,12 @@ func (ctrl *PersistentVolumeController) initializeCaches(volumeSource, claimSour
// Ignore template volumes from kubernetes 1.2
deleted := ctrl.upgradeVolumeFrom1_2(&volume)
if !deleted {
storeObjectUpdate(ctrl.volumes.store, volume, "volume")
clone, err := conversion.NewCloner().DeepCopy(&volume)
if err != nil {
glog.Errorf("error cloning volume %q: %v", volume.Name, err)
}
volumeClone := clone.(*api.PersistentVolume)
ctrl.storeVolumeUpdate(volumeClone)
}
}
@ -163,11 +169,24 @@ func (ctrl *PersistentVolumeController) initializeCaches(volumeSource, claimSour
return
}
for _, claim := range claimList.Items {
storeObjectUpdate(ctrl.claims, claim, "claim")
clone, err := conversion.NewCloner().DeepCopy(&claim)
if err != nil {
glog.Errorf("error cloning claim %q: %v", claimToClaimKey(&claim), err)
}
claimClone := clone.(*api.PersistentVolumeClaim)
ctrl.storeClaimUpdate(claimClone)
}
glog.V(4).Infof("controller initialized")
}
func (ctrl *PersistentVolumeController) storeVolumeUpdate(volume *api.PersistentVolume) (bool, error) {
return storeObjectUpdate(ctrl.volumes.store, volume, "volume")
}
func (ctrl *PersistentVolumeController) storeClaimUpdate(claim *api.PersistentVolumeClaim) (bool, error) {
return storeObjectUpdate(ctrl.claims, claim, "claim")
}
// addVolume is callback from framework.Controller watching PersistentVolume
// events.
func (ctrl *PersistentVolumeController) addVolume(obj interface{}) {
@ -184,7 +203,7 @@ func (ctrl *PersistentVolumeController) addVolume(obj interface{}) {
// Store the new volume version in the cache and do not process it if this
// is an old version.
new, err := storeObjectUpdate(ctrl.volumes.store, obj, "volume")
new, err := ctrl.storeVolumeUpdate(pv)
if err != nil {
glog.Errorf("%v", err)
}
@ -219,7 +238,7 @@ func (ctrl *PersistentVolumeController) updateVolume(oldObj, newObj interface{})
// Store the new volume version in the cache and do not process it if this
// is an old version.
new, err := storeObjectUpdate(ctrl.volumes.store, newObj, "volume")
new, err := ctrl.storeVolumeUpdate(newVolume)
if err != nil {
glog.Errorf("%v", err)
}
@ -291,7 +310,13 @@ func (ctrl *PersistentVolumeController) deleteVolume(obj interface{}) {
func (ctrl *PersistentVolumeController) addClaim(obj interface{}) {
// Store the new claim version in the cache and do not process it if this is
// an old version.
new, err := storeObjectUpdate(ctrl.claims, obj, "claim")
claim, ok := obj.(*api.PersistentVolumeClaim)
if !ok {
glog.Errorf("Expected PersistentVolumeClaim but addClaim received %+v", obj)
return
}
new, err := ctrl.storeClaimUpdate(claim)
if err != nil {
glog.Errorf("%v", err)
}
@ -299,11 +324,6 @@ func (ctrl *PersistentVolumeController) addClaim(obj interface{}) {
return
}
claim, ok := obj.(*api.PersistentVolumeClaim)
if !ok {
glog.Errorf("Expected PersistentVolumeClaim but addClaim received %+v", obj)
return
}
if err := ctrl.syncClaim(claim); err != nil {
if errors.IsConflict(err) {
// Version conflict error happens quite often and the controller
@ -320,7 +340,13 @@ func (ctrl *PersistentVolumeController) addClaim(obj interface{}) {
func (ctrl *PersistentVolumeController) updateClaim(oldObj, newObj interface{}) {
// Store the new claim version in the cache and do not process it if this is
// an old version.
new, err := storeObjectUpdate(ctrl.claims, newObj, "claim")
newClaim, ok := newObj.(*api.PersistentVolumeClaim)
if !ok {
glog.Errorf("Expected PersistentVolumeClaim but updateClaim received %+v", newObj)
return
}
new, err := ctrl.storeClaimUpdate(newClaim)
if err != nil {
glog.Errorf("%v", err)
}
@ -328,11 +354,6 @@ func (ctrl *PersistentVolumeController) updateClaim(oldObj, newObj interface{})
return
}
newClaim, ok := newObj.(*api.PersistentVolumeClaim)
if !ok {
glog.Errorf("Expected PersistentVolumeClaim but updateClaim received %+v", newObj)
return
}
if err := ctrl.syncClaim(newClaim); err != nil {
if errors.IsConflict(err) {
// Version conflict error happens quite often and the controller