spring-boot/spring-boot-docker/src/main/java/com/neo/controller/DockerController.java

package com.neo.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class DockerController {
	
    @RequestMapping("/")
    public String index() {
        return "Hello Docker!";
    }
}