[Docker]SpringBootのDockerイメージ作成①

docker-sample/
            ├─ db/
            ├─ account/
            ├─ docker-compose.yml

package com.example.account.controller;

import com.example.account.entity.Account;
import com.example.account.repository.AccountRepository;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import java.io.*;
import java.net.*;

@RestController()
@RequestMapping(value = "/account")
@RequiredArgsConstructor
class AccountController {

    @Autowired
    private final AccountRepository accountRepository;

    @GetMapping("")
    public Flux<Account> all(){
        return this.accountRepository.findAll();
    }
}

package com.example.account.repository;

import com.example.account.entity.Account;
import org.springframework.data.repository.reactive.ReactiveCrudRepository;

public interface AccountRepository extends ReactiveCrudRepository<Account, Long> {
}

package com.example.account.entity;

import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.data.annotation.Id;
import org.springframework.data.relational.core.mapping.Table;
import java.time.LocalDateTime;

@Data
@NoArgsConstructor
@AllArgsConstructor
@Table("account")
public class Account {

    @Id
    private Long id;
    private String username;
}

app:
  container-name: ${CONTAINER_NAME:account}

server:
  port: ${PORT:9002}

spring:
  main:
    banner-mode: "off"
  application:
    name: account
  r2dbc:
    url: ${DB_URL:r2dbc:postgresql://localhost:5432/db}
    username: ${DB_USER:postgres}
    password: ${DB_PASSWD:postgres}

management:
  endpoints:
    web:
      exposure:
        include: "*"
  endpoint:
    health:
      show-details: always