gistfile1.txt

// containerPrometheusLabels maps cAdvisor labels to prometheus labels.
func containerPrometheusLabels(c *cadvisorapi.ContainerInfo) map[string]string {
	// Prometheus requires that all metrics in the same family have the same labels,
	// so we arrange to supply blank strings for missing labels
	var name, image, podName, namespace, containerName string
	if len(c.Aliases) > 0 {
		name = c.Aliases[0]
	}
	image = c.Spec.Image
	if v, ok := c.Spec.Labels[kubelettypes.KubernetesPodNameLabel]; ok {
		podName = v
	}
	if v, ok := c.Spec.Labels[kubelettypes.KubernetesPodNamespaceLabel]; ok {
		namespace = v
	}
	if v, ok := c.Spec.Labels[kubelettypes.KubernetesContainerNameLabel]; ok {
		containerName = v
	}
	if len(podName) == 0 {
		if len(c.Subcontainers) > 0 {
			if v, ok := c.Subcontainers[0].Labels[kubelettypes.KubernetesPodNameLabel]; ok {
				podName = v
			}
			if v, ok := c.Subcontainers[0].Labels[kubelettypes.KubernetesPodNamespaceLabel]; ok {
				namespace = v
			}
		}
	}
	set := map[string]string{
		metrics.LabelID:    c.Name,
		metrics.LabelName:  name,
		metrics.LabelImage: image,
		"pod_name":         podName,
		"namespace":        namespace,
		"container_name":   containerName,
	}
	return set
}