no such file or directory in workdir-CodePudding

I'm trying to wrap my node express backend with Docker. However, when running my docker-compose file. I encountered error when running npm install stage throughout the dockerfile, saying it doesnt found the package.json copied in my local directory to the directory inside my container. Below is my project directory structure. Trying to proxy my node express backend API using nginx. Any sources that can help what I'm trying to achieve much appreciated.

error log:

> [4/5] RUN npm install:
#8 0.697 npm ERR! code ENOENT
#8 0.697 npm ERR! syscall open
#8 0.697 npm ERR! path /app/package.json
#8 0.698 npm ERR! errno -2
#8 0.699 npm ERR! enoent ENOENT: no such file or directory, open '/app/package.json'

project dir:

express-backend
 ├── docker
 |   ├── nginx
 |   |   ├── nginx.conf
 |   |   └── dockerfile
 |   └── dockerfile
 ├── src
 |   ├── model
 |   |   └── model.ts
 |   ├── controller
 |   |   └── controller.ts
 |   ├── middleware
 |   |   └── middleware.ts
 |   └── server.ts
 | .dockerignore
 | .gitignore
 | docker-compose.yml
 | package-lock.json
 | package.json
 | tsconfig.json

docker/dockerfile:

FROM node:alpine

WORKDIR /app

COPY package*.json ./

RUN npm install

COPY . ./

EXPOSE 5000

RUN npm run build

CMD ["node", "/app/build/server.js", "npm run start"]

docker/nginx/dockerfile

FROM nginx
COPY nginx.conf /etc/nginx/conf.d/default.conf

docker/nginx/nginx.conf

server {
        listen 80 default_server;
        listen [::]:80 default_server;
        server_name nodeserver;

        location / {
           proxy_http_version 1.1;
           proxy_cache_bypass $http_upgrade;
           proxy_set_header Upgrade $http_upgrade;
           proxy_set_header Connection 'upgrade';
           proxy_set_header Host $host;
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           proxy_set_header X-Forwarded-Proto $scheme;
           proxy_pass http://localhost:5000;
        }
}

docker-compose.yml

version: "3.8"
services:
  express:
    container_name: express_container
    build:
      context: ./docker
    environment:
    ports:
      - "5000:5000"
  nginx: 
    container_name: nginx_container
    restart: always
    build:
      context: ./docker/nginx
    ports:
      - "80:80"
  postgres:
    container_name: postgres_container
    image: postgres
    restart: always
    environment:
    ports:
      - "5432:5432"
  pgadmin:
    container_name: pgadmin_container
    image: dpage/pgadmin4
    restart: always
    environment:
    ports:
      - "5050:80"

CodePudding user response：

You've set the context:

context: ./docker

So when you run

COPY . ./

You are copying files from that context, which doesn't include the package.json. You could specify the Dockerfile:

  express:
    container_name: express_container
    build:
      dockerfile: ./docker/Dockerfile
    environment:
    ports:
      - "5000:5000"

But I'd suggest restructuring the folders to keep each image separate where that makes sense.