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controller: cleanup workload controllers a bit

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* Switches glog.Errorf to utilruntime.HandleError in DS and RC controllers
* Drops a couple of unused variables in the DS, SS, and Deployment controllers
* Updates some comments
This commit is contained in:
Michail Kargakis
2017-02-12 17:42:26 +01:00
parent 7738f41b95
commit 10b4ec7b47
4 changed files with 31 additions and 42 deletions
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21
pkg/controller/daemon/daemoncontroller.go
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@@ -52,9 +52,6 @@ import (
)
const (
// Daemon sets will periodically check that their daemon pods are running as expected.
FullDaemonSetResyncPeriod = 30 * time.Second // TODO: Figure out if this time seems reasonable.
// The value of 250 is chosen b/c values that are too high can cause registry DoS issues
BurstReplicas = 250
@@ -188,12 +185,12 @@ func (dsc *DaemonSetsController) deleteDaemonset(obj interface{}) {
if !ok {
tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
if !ok {
glog.Errorf("Couldn't get object from tombstone %#v", obj)
utilruntime.HandleError(fmt.Errorf("Couldn't get object from tombstone %#v", obj))
return
}
ds, ok = tombstone.Obj.(*extensions.DaemonSet)
if !ok {
glog.Errorf("Tombstone contained object that is not a DaemonSet %#v", obj)
utilruntime.HandleError(fmt.Errorf("Tombstone contained object that is not a DaemonSet %#v", obj))
return
}
}
@@ -249,7 +246,7 @@ func (dsc *DaemonSetsController) processNextWorkItem() bool {
func (dsc *DaemonSetsController) enqueueDaemonSet(ds *extensions.DaemonSet) {
key, err := controller.KeyFunc(ds)
if err != nil {
glog.Errorf("Couldn't get key for object %#v: %v", ds, err)
utilruntime.HandleError(fmt.Errorf("Couldn't get key for object %#v: %v", ds, err))
return
}
@@ -263,7 +260,7 @@ func (dsc *DaemonSetsController) getPodDaemonSet(pod *v1.Pod) *extensions.Daemon
ds, ok := obj.(*extensions.DaemonSet)
if !ok {
// This should not happen
glog.Errorf("lookup cache does not retuen a ReplicationController object")
utilruntime.HandleError(fmt.Errorf("lookup cache does not return a DaemonSet object"))
return nil
}
if dsc.isCacheValid(pod, ds) {
@@ -279,7 +276,7 @@ func (dsc *DaemonSetsController) getPodDaemonSet(pod *v1.Pod) *extensions.Daemon
// More than two items in this list indicates user error. If two daemon
// sets overlap, sort by creation timestamp, subsort by name, then pick
// the first.
glog.Errorf("user error! more than one daemon is selecting pods with labels: %+v", pod.Labels)
utilruntime.HandleError(fmt.Errorf("user error! more than one daemon is selecting pods with labels: %+v", pod.Labels))
sort.Sort(byCreationTimestamp(sets))
}
@@ -324,7 +321,7 @@ func (dsc *DaemonSetsController) addPod(obj interface{}) {
if ds := dsc.getPodDaemonSet(pod); ds != nil {
dsKey, err := controller.KeyFunc(ds)
if err != nil {
glog.Errorf("Couldn't get key for object %#v: %v", ds, err)
utilruntime.HandleError(fmt.Errorf("Couldn't get key for object %#v: %v", ds, err))
return
}
dsc.expectations.CreationObserved(dsKey)
@@ -369,12 +366,12 @@ func (dsc *DaemonSetsController) deletePod(obj interface{}) {
if !ok {
tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
if !ok {
glog.Errorf("Couldn't get object from tombstone %#v", obj)
utilruntime.HandleError(fmt.Errorf("Couldn't get object from tombstone %#v", obj))
return
}
pod, ok = tombstone.Obj.(*v1.Pod)
if !ok {
glog.Errorf("Tombstone contained object that is not a pod %#v", obj)
utilruntime.HandleError(fmt.Errorf("Tombstone contained object that is not a pod %#v", obj))
return
}
}
@@ -382,7 +379,7 @@ func (dsc *DaemonSetsController) deletePod(obj interface{}) {
if ds := dsc.getPodDaemonSet(pod); ds != nil {
dsKey, err := controller.KeyFunc(ds)
if err != nil {
glog.Errorf("Couldn't get key for object %#v: %v", ds, err)
utilruntime.HandleError(fmt.Errorf("Couldn't get key for object %#v: %v", ds, err))
return
}
dsc.expectations.DeletionObserved(dsKey)