docker backend app not recognized in the folder-CodePudding

I've been trying to dockerize an angular application with python backend following this. I did all but for the docker-compose file, it says that my app.py is not present in the folder.

my python app is in 'C:\Users\Fra\Desktop\Fra\uni\Tesi\Progetto\backend'

and my angular app is in 'C:\Users\Fra\Desktop\Fra\uni\Tesi\Progetto\frontend'

i'm leaving you the dockerfiles, that should help

('Dockerfile' placed in the backend folder)

FROM python:3.7-slim
COPY ./ /Users/Fra/Desktop/Fra/uni/Tesi/Progetto/backend/
WORKDIR /Users/Fra/Desktop/Fra/uni/Tesi/Progetto
ENV PYTHONUNBUFFERED 1
RUN pip freeze > /requirements.txt
CMD ["python","app.py"]

('Dockerfile' placed in the frontend folder)

FROM nginx:1.17.1-alpine
COPY /dist/macroPlan /usr/share/nginx/html

('docker-compose' placed in the /Progetto/ folder)

version: "3.3"
services:
    app-backend:
        build: ./backend/
        image: app_backend
        container_name: backend
        restart: always
        ports:
            - 8082:8082
    app-frontend:
        build: ./frontend/
        image: macroplan
        container_name: frontend
        restart: always
        ports:
            - 4200:4200
        expose:
            - "4200"

It's my first time doing something like this, what am i missing?

CodePudding user response：

Your WORKDIR is /Users/Fra/Desktop/Fra/uni/Tesi/Progetto but your app.py file - which is required for container startup in CMD - is located in /Users/Fra/Desktop/Fra/uni/Tesi/Progetto/backend/ folder.

Rewrite your backend Dockerfile to:

FROM python:3.7-slim
COPY ./ /Users/Fra/Desktop/Fra/uni/Tesi/Progetto/backend/
WORKDIR /Users/Fra/Desktop/Fra/uni/Tesi/Progetto/backend/
ENV PYTHONUNBUFFERED 1
RUN pip freeze > /requirements.txt
CMD ["python","app.py"]

Or if you want to have different workdir for some reason, you have to specify correct path for your app.py file:

FROM python:3.7-slim
COPY ./ /Users/Fra/Desktop/Fra/uni/Tesi/Progetto/backend/
WORKDIR /Users/Fra/Desktop/Fra/uni/Tesi/Progetto
ENV PYTHONUNBUFFERED 1
RUN pip freeze > /requirements.txt
CMD ["python","./backend/app.py"]