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Pod status changes not discovered by Kube Endpoints SD (#13337)

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* fix(discovery/kubernetes/endpoints): react to changes on Pods because some modifications can occur on them without triggering an update on the related Endpoints (The Pod phase changing from Pending to Running e.g.).

---------

Signed-off-by: machine424 <ayoubmrini424@gmail.com>
Co-authored-by: Guillermo Sanchez Gavier <gsanchez@newrelic.com>
This commit is contained in:
Ayoub Mrini 2024-02-01 13:34:37 +01:00 • committed by GitHub
parent 34875ae8c7
commit 581d8d86b4
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GPG key ID: B5690EEEBB952194
5 changed files with 183 additions and 4 deletions
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19
discovery/kubernetes/kubernetes.go
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@ -767,6 +767,21 @@ func (d *Discovery) newPodsByNodeInformer(plw *cache.ListWatch) cache.SharedInde
func (d *Discovery) newEndpointsByNodeInformer(plw *cache.ListWatch) cache.SharedIndexInformer {
indexers := make(map[string]cache.IndexFunc)
indexers[podIndex] = func(obj interface{}) ([]string, error) {
e, ok := obj.(*apiv1.Endpoints)
if !ok {
return nil, fmt.Errorf("object is not endpoints")
}
var pods []string
for _, target := range e.Subsets {
for _, addr := range target.Addresses {
if addr.TargetRef != nil && addr.TargetRef.Kind == "Pod" {
pods = append(pods, namespacedName(addr.TargetRef.Namespace, addr.TargetRef.Name))
}
}
}
return pods, nil
}
if !d.attachMetadata.Node {
return cache.NewSharedIndexInformer(plw, &apiv1.Endpoints{}, resyncDisabled, indexers)
}
@ -872,3 +887,7 @@ func addObjectMetaLabels(labelSet model.LabelSet, objectMeta metav1.ObjectMeta,
labelSet[model.LabelName(metaLabelPrefix+string(role)+"_annotationpresent_"+ln)] = presentValue
}
}
func namespacedName(namespace, name string) string {
return namespace + "/" + name
}