Docker Compose：.env：没有这样的文件或目录/ NodeJS

Question

您好，我正在尝试使docker compose正常工作，但是出现以下错误：

步骤13/15：COPY .env。 COPY失败：统计 /var/lib/docker/tmp/docker-builder209795817/.env：无此类文件或 目录

我无法找到解决方案，也无法想象我可以做些什么来解决这个问题

代码：

DockerCompsoe：

version: "3.7"
services:
  db:
    image: postgres
    environment:
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: postgres
      POSTGRES_DB: emasa
    volumes:
      - ./pgdata:/var/lib/postgresql/data
    ports:
      - "5432:5432"
    web:
      image: emasapg
      depends_on:
        - dbs
      ports:
        - "4000:4000"

DockerFile：

FROM node as builder
WORKDIR usr/app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build


FROM node
WORKDIR usr/app
COPY package*.json ./
RUN npm install --production

COPY --from=builder /usr/app/dist ./dist      // I GOT PROBLEM HERE

COPY ormconfig.docker.json ./ormconfig.json
COPY .env . 

expose 4000
CMD node dist/src/index.js

我的package.json：

{
  "name": "back-end",
  "version": "0.0.1",
  "description": "Awesome project developed with TypeORM.",
  "scripts": {
    "dev:server": "ts-node-dev --respawn --transpileOnly src/index.ts",
    "build": "tsc -b"
  },
  "devDependencies": {
    "@types/express": "^4.17.3",
    "@types/node": "^13.9.1",
    "typescript": "^3.8.3"
  },
  "dependencies": {
    "apollo-server-express": "^2.11.0",
    "express": "^4.17.1",
    "graphql": "^14.6.0",
    "pg": "^7.3.0",
    "reflect-metadata": "^0.1.13",
    "ts-node": "^8.6.2",
    "typeorm": "0.2.24"
  }
}

我的ormconfig：

{
  "type": "postgres",
  "host": "db",
  "port": 5432,
  "username": "postgres",
  "password": "postgres",
  "database": "emasa",
  "synchronize": true,
  "logging": false,
  "entities": ["src/entity/**/*.ts"],
  "migrations": ["src/migration/**/*.ts"],
  "subscribers": ["src/subscriber/**/*.ts"],
  "cli": {
    "entitiesDir": "src/entity",
    "migrationsDir": "src/migration",
    "subscribersDir": "src/subscriber"
  }
}

这是我的文件夹结构：

Answer 1

因为没有.env文件和dist文件夹而出现错误。

首先，您需要在项目结构的根目录下创建一个.env文件，以便提供所需的环境变量（例如，名称，主机，端口，密码和数据库连接的用户）。下一步运行npm run build以构建您的项目，该项目将创建dist文件夹（请参阅tsconfig.json）。