refactor: ECS labels.

provider/ecs/config_root.go

@@ -0,0 +1,12 @@
+package ecs
+
+import (
+	"github.com/containous/traefik/types"
+)
+
+func (p *Provider) buildConfiguration(services map[string][]ecsInstance) (*types.Configuration, error) {
+	if p.TemplateVersion == 1 {
+		return p.buildConfigurationV1(services)
+	}
+	return p.buildConfigurationV2(services)
+}