add controller

src/main/java/com/asap/asapserverlab/controller/ServerController.java

@@ -0,0 +1,20 @@
+package com.asap.asapserverlab.controller;
+
+import java.util.Arrays;
+import lombok.RequiredArgsConstructor;
+import org.springframework.core.env.Environment;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+public class ServerController {
+    private final Environment env;
+
+    @GetMapping("/profile")
+    public String getProfile() {
+        return Arrays.stream(env.getActiveProfiles())
+                .findFirst()
+                .orElse("");
+    }
+}