func (d *Daemon) getFilteredLabels(allLabels map[string]string) labels.Labels {
var ciliumLabels, k8sLabels labels.Labels
if podName := k8sDockerLbls.GetPodName(allLabels); podName != "" {
k8sNormalLabels, err := d.fetchK8sLabels(allLabels)
if err != nil {
log.Warningf("Error while getting kubernetes labels: %s", err)
} else if k8sNormalLabels != nil {
k8sLabels = labels.Map2Labels(k8sNormalLabels, common.K8sLabelSource)
}
}
ciliumLabels = labels.Map2Labels(allLabels, common.CiliumLabelSource)
ciliumLabels.MergeLabels(k8sLabels)
d.conf.ValidLabelPrefixesMU.RLock()
defer d.conf.ValidLabelPrefixesMU.RUnlock()
return d.conf.ValidLabelPrefixes.FilterLabels(ciliumLabels)
}
func (d *Daemon) fetchK8sLabels(dockerLbls map[string]string) (map[string]string, error) {
if !d.conf.IsK8sEnabled() {
return nil, nil
}
ns := k8sDockerLbls.GetPodNamespace(dockerLbls)
if ns == "" {
ns = "default"
}
podName := k8sDockerLbls.GetPodName(dockerLbls)
if podName == "" {
return nil, nil
}
log.Debugf("Connecting to kubernetes to retrieve labels for pod %s ns %s", podName, ns)
result, err := d.k8sClient.Pods(ns).Get(podName)
if err != nil {
return nil, err
}
k8sLabels := result.GetLabels()
k8sLabels[common.K8sPodNamespaceLabel] = ns
return k8sLabels, nil
}