Changed request url from localhost to hostname of the db service.

gourmet-guide-backend/src/main/java/com/db/gourmetguide/security/CustomUserDetailsService.java

@@ -28,7 +28,7 @@ public class CustomUserDetailsService implements UserDetailsService {
     public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
         HttpClient httpClient = HttpClient.newHttpClient();
         HttpRequest request = HttpRequest.newBuilder()
-                .uri(URI.create("http://localhost:8081/users/username"))
+                .uri(URI.create("http://dbinteraction:8081/users/username"))
                 .GET()
                 .build();
         try {