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Index pods by node name

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Signed-off-by: fpetkovski <filip.petkovsky@gmail.com>
This commit is contained in:
fpetkovski 2022-03-10 15:33:34 +01:00
parent eb5512555d
commit 16bd0d7d5c
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GPG key ID: 431B0F2E85E42402
2 changed files with 29 additions and 8 deletions
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17
discovery/kubernetes/kubernetes.go
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@ -511,7 +511,7 @@ func (d *Discovery) Run(ctx context.Context, ch chan<- []*targetgroup.Group) {
}
pod := NewPod(
log.With(d.logger, "role", "pod"),
cache.NewSharedInformer(plw, &apiv1.Pod{}, resyncPeriod),
d.newPodsByNodeInformer(plw),
nodeInformer,
)
d.discoverers = append(d.discoverers, pod)
@ -679,3 +679,18 @@ func (d *Discovery) newNodeInformer(ctx context.Context) cache.SharedInformer {
}
return cache.NewSharedInformer(nlw, &apiv1.Node{}, resyncPeriod)
}
func (d *Discovery) newPodsByNodeInformer(plw *cache.ListWatch) cache.SharedIndexInformer {
indexers := make(map[string]cache.IndexFunc)
if d.attachMetadata.Node {
indexers[nodeIndex] = func(obj interface{}) ([]string, error) {
pod, ok := obj.(*apiv1.Pod)
if !ok {
return nil, fmt.Errorf("object is not a pod")
}
return []string{pod.Spec.NodeName}, nil
}
}
return cache.NewSharedIndexInformer(plw, &apiv1.Pod{}, resyncPeriod, indexers)
}