问使用docker构建的NestJS应用程序无法访问同一个码头网络中的postgres数据库: ECONNREFUSED 127.0.0.1:5432

EN

version: '3'

services:

  backend:
    build: .
    container_name: backend-api
    command: npm run start
    restart: unless-stopped
    ports:
      - 3000:3000
    volumes:
      - .:/usr/src/backend
    networks:
      - docker-network
    depends_on:
      - database

  database:
    image: postgres:latest
    container_name: backend-db
    ports:
      - 5432:5432
    volumes:
      - postgresdb/:/var/lib/postgresql/data/
    networks:
      - docker-network
    environment:
      POSTGRES_USER: devuser
      POSTGRES_PASSWORD: devpw
      POSTGRES_DB: devdb

volumes:
  postgresdb:

networks:
  docker-network:
    driver: bridge

FROM node:16.15.0-alpine

WORKDIR /usr/src/backend

COPY . .

RUN npm install

Starting backend-db ... done
Recreating backend-api ... done
Attaching to backend-db, backend-api
backend-db  | 
backend-db  | PostgreSQL Database directory appears to contain a database; Skipping initialization
backend-db  | 
backend-db  | 2022-05-03 20:35:46.065 UTC [1] LOG:  starting PostgreSQL 14.2 (Debian 14.2-1.pgdg110+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 10.2.1-6) 10.2.1 20210110, 64-bit
backend-db  | 2022-05-03 20:35:46.066 UTC [1] LOG:  listening on IPv4 address "0.0.0.0", port 5432
backend-db  | 2022-05-03 20:35:46.066 UTC [1] LOG:  listening on IPv6 address "::", port 5432
backend-db  | 2022-05-03 20:35:46.067 UTC [1] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
backend-db  | 2022-05-03 20:35:46.071 UTC [26] LOG:  database system was shut down at 2022-05-03 20:35:02 UTC
backend-db  | 2022-05-03 20:35:46.077 UTC [1] LOG:  database system is ready to accept connections
backend-api | 
backend-api | > backend@0.0.1 start
backend-api | > nodemon
backend-api | 
backend-api | [nodemon] 2.0.15
backend-api | [nodemon] to restart at any time, enter `rs`
backend-api | [nodemon] watching path(s): src/**/*
backend-api | [nodemon] watching extensions: ts
backend-api | [nodemon] starting `IS_TS_NODE=true ts-node -r tsconfig-paths/register src/main.ts`
backend-api | [Nest] 30  - 05/03/2022, 8:35:50 PM     LOG [NestFactory] Starting Nest application...
backend-api | [Nest] 30  - 05/03/2022, 8:35:50 PM     LOG [InstanceLoader] TypeOrmModule dependencies initialized +73ms
backend-api | [Nest] 30  - 05/03/2022, 8:35:50 PM     LOG [InstanceLoader] ConfigHostModule dependencies initialized +1ms
backend-api | [Nest] 30  - 05/03/2022, 8:35:50 PM     LOG [InstanceLoader] AppModule dependencies initialized +0ms
backend-api | [Nest] 30  - 05/03/2022, 8:35:50 PM     LOG [InstanceLoader] ConfigModule dependencies initialized +1ms
backend-api | [Nest] 30  - 05/03/2022, 8:35:50 PM   ERROR [TypeOrmModule] Unable to connect to the database. Retrying (1)...
backend-api | Error: connect ECONNREFUSED 127.0.0.1:5432
backend-api |     at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1187:16)
backend-api | [Nest] 30  - 05/03/2022, 8:35:53 PM   ERROR [TypeOrmModule] Unable to connect to the database. Retrying (2)...

import { ConnectionOptions } from 'typeorm';

const config: ConnectionOptions = {
  type: 'postgres',
  host: 'localhost',
  port: 5432,
  username: 'devuser',
  password: 'devpw',
  database: 'devdb',
  entities: [__dirname + '/**/*.entity{.ts,.js}'],
  synchronize: false,
  migrations: [__dirname + '/**/migrations/**/*{.ts,.js}'],
  cli: {
    migrationsDir: 'src/migrations',
  },
};

export default config;