如何在nestjs中管理不同的配置环境

export default {
  database: {
    host: 'localhost',
    port: 3306,
    username: 'dev',
    password: 'dev123',
    database: 'dev_db',
  },
  logger: {
    level: 'debug',
  },
};

export default {
  database: {
    host: 'production-db',
    port: 5432,
    username: 'prod',
    password: 'prod123',
    database: 'prod_db',
  },
  logger: {
    level: 'info',
  },
};

import { Module } from '@nestjs/common';
import { ConfigModule } from '@nestjs/config';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import developmentConfig from '../config/development.config';
import productionConfig from '../config/production.config';

@Module({
  imports: [
    ConfigModule.forRoot({
      load: [developmentConfig, productionConfig],
    }),
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

import { Injectable } from '@nestjs/common';
import { Config } from '@nestjs/config';

@Injectable()
export class AppService {
  constructor(@Config() private config: Record<string, any>) {}

  getDatabaseConfig(): any {
    return this.config.database;
  }

  getLoggerLevel(): string {
    return this.config.logger.level;
  }
}