复制文件时没有这样的文件或目录

Question

I have a problem. I want to install Python and Node.js in a same image. But there is a problem in copying the package.json. The error says no such file or directory, open '/opt/app/src/package.json' . So what is the probleme here? What did I might wrong?

I looked at Docker-compose up: no such file or directory, open '/usr/src/app/package.json' , but I don't know where my error is.

Dockerfile

FROM python:3.7-slim AS build
RUN mkdir -p /opt/app/src
COPY ./requirements.txt /opt/app/src
RUN pip install -r /opt/app/src/requirements.txt

FROM node:14-slim
RUN mkdir -p /opt/app/src
WORKDIR /opt/app/src
COPY --from=build package-*.json ./
RUN npm install
EXPOSE 4001
CMD npm start

Structure

|-- app.js
|-- requriments.txt
|-- test.js
|-- package.json
|-- routes
|-- |-- model.py
|-- |-- post_price.js

docker-compose.yml

version: '3.8'

services:
    backend:
        container_name: backend_airbnb
        image: backend_airbnb
        expose:
            - "4001"
        ports:
            - "4001:4001"
        networks:
            - backendProxyNetwork

networks:
    backendProxyNetwork:
      external: true

Error

CONTAINERS





Attaching to backend_airbnb

backend_airbnb | npm ERR! code ENOENT

backend_airbnb | npm ERR! syscall open

backend_airbnb | npm ERR! path /opt/app/src/package.json

backend_airbnb | npm ERR! errno -2

backend_airbnb | npm ERR! enoent ENOENT: no such file or directory, open '/opt/app/src/package.json'

backend_airbnb | npm ERR! enoent This is related to npm not being able to find a file.

backend_airbnb | npm ERR! enoent 

backend_airbnb | 

backend_airbnb | npm ERR! A complete log of this run can be found in:

backend_airbnb | npm ERR!     /root/.npm/_logs/2022-02-21T08_33_58_188Z-debug.log

backend_airbnb exited with code 254

Answer 1

You can probably install python in your nodejs image. This is a very basic demostration of what you can do.

FROM node:14-alpine
WORKDIR /app

# Install Python
RUN apk add --no-cache python3 py3-pip

# Copy all required files    
COPY . .

# Install your python packages
RUN pip install -r /app/requirements.txt

# Install node applications
RUN npm install

# Expose Port
EXPOSE 4001

# Start App
CMD npm start

Answer 2

It's probably because of the COPY . Try this: COPY --from=build package*.json./ .

Difference package*.json vs package-*.json

This will match "package.json" and "package-lock.json" - previously only the latter did and the package.json didn't copy (which is required to install deps).