dockerize NestJS和TypeORM

如何解决dockerize NestJS和TypeORM

我有这个Dockerfile：

FROM node:12

WORKDIR /usr/src/app

COPY package*.json ./

RUN npm install

COPY . .

CMD [ "npm","start"]

和docker-compose.yml看起来像这样：

version: '3.1'

services:

      db:
        image: postgres
        restart: always
        volumes:
          - ./db-data:/var/lib/postgresql/data
        environment:
          POSTGRES_PASSWORD: root
        ports:
          - 5432:5432
      node:
        build: .
        volumes:
          - ./public/storage/files:/usr/app/public/storage/files
        env_file: .env
        restart: always
        ports:
          - '8080:8080'

项目启动时使用ormconfig.json

{
  "type": "postgres","host": "localhost","port": 5432,"username": "postgres","database": "postgres","password": "root","synchronize": true,"logging": true,"entities": ["dist/**/*.entity.js"]
}

但是在docker中运行时出现错误

[Nest] 30   - 08/19/2020,5:49:39 PM   [TypeOrmModule] Unable to connect to the database. Retrying (4)... +3003ms
node_1  | Error: connect ECONNREFUSED 127.0.0.1:5432

请帮助修复它。没有泊坞窗，它可以完美运行。

解决方法

因为使用docker-compose时它们不在彼此的本地主机中。

实际上它们在单独的docker网络中

因此您必须将他们的网络设置为同一网络或通过他们的container_name呼叫他们

{
  "type": "postgres","host": "db",// container name
  "port": 5432,"username": "postgres","database": "postgres","password": "root","synchronize": true,"logging": true,"entities": ["dist/**/*.entity.js"]
}

一个工作示例如下所示： 还请注意，不必像@Charles Desbiens在评论中所说的那样手动进行联网

version: "3.5"

services:
  # Databases # #
  postgresql-test:
    container_name: postgresql-test
    image: postgres:11.2-alpine
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-admin}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
      POSTGRES_DB: ${POSTGRES_DB:-crud-node}
      PGDATA: /data/postgres
    ports:
      - 30001:5432
    networks:
      - test
...
  node:
    build:
      context: ./backend
      dockerfile: Dockerfile.dev
    image: backend:latest
    container_name: backend
    depends_on:
      - postgresql-test
    networks:
      - test
    ports:
      - 3000:3000
      - 9229:9229

...
networks:
  test:

现在，您可以使用address: postgresql-test & port: 5432在代码中访问db

{
  "type": "postgres","host": "postgresql-test","port": 5432,"username": "admin","database": "crud-node","password": "changeme","entities": ["dist/**/*.entity.js"]
}

还可以查看this回购。