New static configuration loading system.

Co-authored-by: Mathieu Lonjaret <mathieu.lonjaret@gmail.com>

pkg/config/parser/labels_encode.go

@@ -0,0 +1,30 @@
+package parser
+
+// EncodeNode Converts a node to labels.
+// nodes -> labels
+func EncodeNode(node *Node) map[string]string {
+	labels := make(map[string]string)
+	encodeNode(labels, node.Name, node)
+	return labels
+}
+
+func encodeNode(labels map[string]string, root string, node *Node) {
+	for _, child := range node.Children {
+		if child.Disabled {
+			continue
+		}
+
+		var sep string
+		if child.Name[0] != '[' {
+			sep = "."
+		}
+
+		childName := root + sep + child.Name
+
+		if len(child.Children) > 0 {
+			encodeNode(labels, childName, child)
+		} else if len(child.Name) > 0 {
+			labels[childName] = child.Value
+		}
+	}
+}