func generateNodeAnnotations()

in pkg/observability/k8s-events.go [231:260]

• 28 lines of code
• 9 McCabe index (conditional complexity)

func generateNodeAnnotations(node *corev1.Node, annotations map[string]string) map[string]string {
	nodeAnnotations := make(map[string]string)
	for k, v := range annotations {
		nodeAnnotations[k] = v
	}
	nodeAnnotations["availability-zone"] = node.Labels["topology.kubernetes.io/zone"]
	nodeAnnotations["instance-id"] = node.Spec.ProviderID[strings.LastIndex(node.Spec.ProviderID, "/")+1:]
	nodeAnnotations["instance-type"] = node.Labels["node.kubernetes.io/instance-type"]
	nodeAnnotations["local-hostname"] = node.Name
	for _, address := range node.Status.Addresses {
		// If there's more than one address of the same type, use the first one
		switch address.Type {
		case corev1.NodeInternalIP:
			if _, exist := annotations["local-ipv4"]; !exist {
				nodeAnnotations["local-ipv4"] = address.Address
			}
		case corev1.NodeExternalDNS:
			if _, exist := annotations["public-hostname"]; !exist {
				nodeAnnotations["public-hostname"] = address.Address
			}
		case corev1.NodeExternalIP:
			if _, exist := annotations["public-ipv4"]; !exist {
				nodeAnnotations["public-ipv4"] = address.Address
			}
		}
	}
	nodeAnnotations["region"] = node.Labels["topology.kubernetes.io/region"]

	return nodeAnnotations
}