Feature hello api

src/main/java/com/yam/app/ActuatorApi.java

@@ -0,0 +1,13 @@
+package com.yam.app;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public final class ActuatorApi {
+
+    @GetMapping("/")
+    public void hello() {
+
+    }
+}