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fix: panic if apiserver connection lost #384

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Merged
ilya-lesikov merged 1 commit into from
Dec 10, 2025
Merged

fix: panic if apiserver connection lost #384

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16 changes: 16 additions & 0 deletions pkg/tracker/canary/tracker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -151,23 +151,39 @@ func (canary *Tracker) runInformer(ctx context.Context) (cleanupFn func(), err e
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

canaryObj := &v1beta1.Canary{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, canaryObj))
return canaryObj.Name == canary.ResourceName &&
canaryObj.Namespace == canary.Namespace
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

canaryObj := &v1beta1.Canary{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, canaryObj))
canary.objectAdded <- canaryObj
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

canaryObj := &v1beta1.Canary{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, canaryObj))
canary.objectModified <- canaryObj
},
DeleteFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

canaryObj := &v1beta1.Canary{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, canaryObj))
canary.objectDeleted <- canaryObj
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16 changes: 16 additions & 0 deletions pkg/tracker/daemonset/tracker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -305,23 +305,39 @@ func (d *Tracker) runDaemonSetInformer(ctx context.Context) (cleanupFn func(), e
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

daemonsetObj := &appsv1.DaemonSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, daemonsetObj))
return daemonsetObj.Name == d.ResourceName &&
daemonsetObj.Namespace == d.Namespace
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

daemonsetObj := &appsv1.DaemonSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, daemonsetObj))
d.resourceAdded <- daemonsetObj
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

daemonsetObj := &appsv1.DaemonSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, daemonsetObj))
d.resourceModified <- daemonsetObj
},
DeleteFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

daemonsetObj := &appsv1.DaemonSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, daemonsetObj))
d.resourceDeleted <- daemonsetObj
Expand Down
16 changes: 16 additions & 0 deletions pkg/tracker/deployment/tracker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -431,23 +431,39 @@ func (d *Tracker) runDeploymentInformer(ctx context.Context) (cleanupFn func(),
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

deploymentObj := &appsv1.Deployment{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, deploymentObj))
return deploymentObj.Name == d.ResourceName &&
deploymentObj.Namespace == d.Namespace
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

deploymentObj := &appsv1.Deployment{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, deploymentObj))
d.resourceAdded <- deploymentObj
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

deploymentObj := &appsv1.Deployment{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, deploymentObj))
d.resourceModified <- deploymentObj
},
DeleteFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

deploymentObj := &appsv1.Deployment{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, deploymentObj))
d.resourceDeleted <- deploymentObj
Expand Down
12 changes: 12 additions & 0 deletions pkg/tracker/event/informer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -95,17 +95,29 @@ func (e *EventInformer) Run(ctx context.Context) (cleanupFn func(), err error) {
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

eventObj := &corev1.Event{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, eventObj))
return eventObj.InvolvedObject.UID == involvedObjMetadata.GetUID()
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

eventObj := &corev1.Event{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, eventObj))
e.handleEvent(eventObj)
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

eventObj := &corev1.Event{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, eventObj))
e.handleEvent(eventObj)
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12 changes: 12 additions & 0 deletions pkg/tracker/generic/resource_events_watcher.go
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Original file line number Diff line number Diff line change
Expand Up @@ -90,17 +90,29 @@ func (i *ResourceEventsWatcher) Run(ctx context.Context, eventsCh chan<- *corev1
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

eventObj := &corev1.Event{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, eventObj))
return eventObj.InvolvedObject.UID == involvedObjMetadata.GetUID()
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

eventObj := &corev1.Event{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, eventObj))
i.handleEventStateChange(ctx, eventObj, eventsCh)
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

eventObj := &corev1.Event{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, eventObj))
i.handleEventStateChange(ctx, eventObj, eventsCh)
Expand Down
16 changes: 16 additions & 0 deletions pkg/tracker/generic/resource_state_watcher.go
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Original file line number Diff line number Diff line change
Expand Up @@ -70,18 +70,34 @@ func (w *ResourceStateWatcher) Run(ctx context.Context, resourceAddedCh, resourc
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

unstructObj := obj.(*unstructured.Unstructured)
return unstructObj.GetName() == w.ResourceID.Name &&
(!namespaced || unstructObj.GetNamespace() == w.ResourceID.Namespace)
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

resourceAddedCh <- obj.(*unstructured.Unstructured)
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

resourceModifiedCh <- newObj.(*unstructured.Unstructured)
},
DeleteFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

resourceDeletedCh <- obj.(*unstructured.Unstructured)
},
},
Expand Down
16 changes: 16 additions & 0 deletions pkg/tracker/job/tracker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -272,23 +272,39 @@ func (job *Tracker) runInformer(ctx context.Context) (cleanupFn func(), err erro
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

jobObj := &batchv1.Job{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, jobObj))
return jobObj.Name == job.ResourceName &&
jobObj.Namespace == job.Namespace
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

jobObj := &batchv1.Job{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, jobObj))
job.objectAdded <- jobObj
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

jobObj := &batchv1.Job{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, jobObj))
job.objectModified <- jobObj
},
DeleteFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

jobObj := &batchv1.Job{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, jobObj))
job.objectDeleted <- jobObj
Expand Down
8 changes: 8 additions & 0 deletions pkg/tracker/pod/informer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -74,12 +74,20 @@ func (p *PodsInformer) Run(ctx context.Context) (cleanupFn func(), err error) {
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

podObj := &corev1.Pod{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, podObj))
return labelSelector.Matches(apilabels.Set(podObj.GetLabels()))
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

podObj := &corev1.Pod{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, podObj))
p.PodAdded <- podObj
Expand Down
16 changes: 16 additions & 0 deletions pkg/tracker/pod/tracker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -586,23 +586,39 @@ func (pod *Tracker) runInformer(ctx context.Context) (cleanupFn func(), err erro
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

podObj := &corev1.Pod{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, podObj))
return podObj.Name == pod.ResourceName &&
podObj.Namespace == pod.Namespace
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

podObj := &corev1.Pod{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, podObj))
pod.objectAdded <- podObj
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

podObj := &corev1.Pod{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, podObj))
pod.objectModified <- podObj
},
DeleteFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

podObj := &corev1.Pod{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, podObj))
pod.objectDeleted <- podObj
Expand Down
16 changes: 16 additions & 0 deletions pkg/tracker/replicaset/informer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -107,22 +107,38 @@ func (r *ReplicaSetInformer) Run(ctx context.Context) (cleanupFn func(), err err
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

rsObj := &appsv1.ReplicaSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, rsObj))
return labelSelector.Matches(apilabels.Set(rsObj.GetLabels()))
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

rsObj := &appsv1.ReplicaSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, rsObj))
r.ReplicaSetAdded <- rsObj
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

rsObj := &appsv1.ReplicaSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, rsObj))
r.ReplicaSetModified <- rsObj
},
DeleteFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

rsObj := &appsv1.ReplicaSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, rsObj))
r.ReplicaSetDeleted <- rsObj
Expand Down
16 changes: 16 additions & 0 deletions pkg/tracker/statefulset/tracker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -313,23 +313,39 @@ func (d *Tracker) runStatefulSetInformer(ctx context.Context) (cleanupFn func(),
handler, err := inf.AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

statefulsetObj := &appsv1.StatefulSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, statefulsetObj))
return statefulsetObj.Name == d.ResourceName &&
statefulsetObj.Namespace == d.Namespace
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

statefulsetObj := &appsv1.StatefulSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, statefulsetObj))
d.resourceAdded <- statefulsetObj
},
UpdateFunc: func(oldObj, newObj interface{}) {
if d, ok := newObj.(cache.DeletedFinalStateUnknown); ok {
newObj = d.Obj
}

statefulsetObj := &appsv1.StatefulSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(newObj.(*unstructured.Unstructured).Object, statefulsetObj))
d.resourceModified <- statefulsetObj
},
DeleteFunc: func(obj interface{}) {
if d, ok := obj.(cache.DeletedFinalStateUnknown); ok {
obj = d.Obj
}

statefulsetObj := &appsv1.StatefulSet{}
lo.Must0(runtime.DefaultUnstructuredConverter.FromUnstructured(obj.(*unstructured.Unstructured).Object, statefulsetObj))
d.resourceDeleted <- statefulsetObj
Expand Down
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