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✨ SetErrorWatchHandler on SharedIndexInformer #2494

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merged 2 commits into from Sep 24, 2023
Merged

✨ SetErrorWatchHandler on SharedIndexInformer #2494

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0c894a4
add SetErrorWatchHandler to informers
troy0820 Sep 14, 2023
897e04c
pass watchErrorHandler through Options struct
troy0820 Sep 18, 2023
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13 changes: 13 additions & 0 deletions pkg/cache/internal/informers.go
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Expand Up @@ -49,14 +49,19 @@ type InformersOpts struct {
Selector Selector
Transform cache.TransformFunc
UnsafeDisableDeepCopy bool
WatchErrorHandler cache.WatchErrorHandler
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}

// NewInformers creates a new InformersMap that can create informers under the hood.
func NewInformers(config *rest.Config, options *InformersOpts) *Informers {
newInformer := cache.NewSharedIndexInformer
watchErrorHandler := cache.DefaultWatchErrorHandler
if options.NewInformer != nil {
newInformer = *options.NewInformer
}
if options.WatchErrorHandler != nil {
watchErrorHandler = options.WatchErrorHandler
}
return &Informers{
config: config,
httpClient: options.HTTPClient,
Expand All @@ -76,6 +81,7 @@ func NewInformers(config *rest.Config, options *InformersOpts) *Informers {
transform: options.Transform,
unsafeDisableDeepCopy: options.UnsafeDisableDeepCopy,
newInformer: newInformer,
watchErrorHandler: watchErrorHandler,
}
}

Expand Down Expand Up @@ -159,6 +165,8 @@ type Informers struct {

// NewInformer allows overriding of the shared index informer constructor for testing.
newInformer func(cache.ListerWatcher, runtime.Object, time.Duration, cache.Indexers) cache.SharedIndexInformer

watchErrorHandler cache.WatchErrorHandler
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}

// Start calls Run on each of the informers and sets started to true. Blocks on the context.
Expand Down Expand Up @@ -323,6 +331,11 @@ func (ip *Informers) addInformerToMap(gvk schema.GroupVersionKind, obj runtime.O
cache.NamespaceIndex: cache.MetaNamespaceIndexFunc,
})

// Set WatchErrorHandler on SharedIndexInformer
if err := sharedIndexInformer.SetWatchErrorHandler(ip.watchErrorHandler); err != nil {
return nil, false, err
}

// Check to see if there is a transformer for this gvk
if err := sharedIndexInformer.SetTransform(ip.transform); err != nil {
return nil, false, err
Expand Down