func mutationRequired()

in controller/cmd/webhook.go [82:113]

• 26 lines of code
• 6 McCabe index (conditional complexity)

func mutationRequired(ignoredList []string, metadata *metav1.ObjectMeta) bool {
	// skip special kubernete system namespaces
	for _, namespace := range ignoredList {
		if metadata.Namespace == namespace {
			glog.Infof("Skip mutation for %v for it's in special namespace:%v", metadata.Name, metadata.Namespace)
			return false
		}
	}

	annotations := metadata.GetAnnotations()
	if annotations == nil {
		annotations = map[string]string{}
	}

	status := annotations[admissionWebhookAnnotationStatusKey]

	// determine whether to perform mutation based on annotation for the target resource
	var required bool
	if strings.ToLower(status) == "injected" {
		required = false
	} else {
		switch strings.ToLower(annotations[admissionWebhookAnnotationInjectKey]) {
		default:
			required = false
		case "y", "yes", "true", "on":
			required = true
		}
	}

	glog.Infof("Mutation policy for %v/%v: status: %q required:%v", metadata.Namespace, metadata.Name, status, required)
	return required
}