move everything to src

pkg/builder/labels/labels.go

@@ -0,0 +1,21 @@
+package builder
+
+type LabelsBuilder struct {
+	labels map[string]string
+}
+
+func NewLabelsBuilder() *LabelsBuilder {
+	return &LabelsBuilder{
+		labels: map[string]string{},
+	}
+}
+func (b *LabelsBuilder) WithLabels(labels map[string]string) *LabelsBuilder {
+	for k, v := range labels {
+		b.labels[k] = v
+	}
+	return b
+}
+
+func (b *LabelsBuilder) Build() map[string]string {
+	return b.labels
+}