coredns/plugin/kubernetes/namespace.go

27 lines
890 B
Go

package kubernetes
// filteredNamespaceExists checks if namespace exists in this cluster
// according to any `namespace_labels` plugin configuration specified.
// Returns true even for namespaces not exposed by plugin configuration,
// see namespaceExposed.
func (k *Kubernetes) filteredNamespaceExists(namespace string) bool {
ns, err := k.APIConn.GetNamespaceByName(namespace)
if err != nil {
return false
}
return ns.ObjectMeta.Name == namespace
}
// configuredNamespace returns true when the namespace is exposed through the plugin
// `namespaces` configuration.
func (k *Kubernetes) configuredNamespace(namespace string) bool {
_, ok := k.Namespaces[namespace]
if len(k.Namespaces) > 0 && !ok {
return false
}
return true
}
func (k *Kubernetes) namespaceExposed(namespace string) bool {
return k.configuredNamespace(namespace) && k.filteredNamespaceExists(namespace)
}