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I am trying to Dockerize an application and it’s my first time. Have a Docker file inside the working directory:
# syntax=docker/dockerfile:1
FROM ubuntu:22.04
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
WORKDIR /
RUN apt-get update && apt-get install -y python3.10 python3-pip
RUN apt-get update && apt-get install -y git
RUN apt-get update && apt-get install -y libpq-dev python3-dev
COPY requirements.txt .
RUN pip install -r requirements.txt
COPY . .
and I have this docker-compose.yml file:
version: "1.1"
services:
db:
image: postgres:15-alpine
volumes:
- ./db:/var/lib/postgresql/data
environment:
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
- POSTGRES_DB=postgres
backend:
build: /
ports:
- "8000:8000"
volumes:
- ./:/backend
env_file: .env
command: python manage.py runserver 0.0.0.0:8000
depends_on:
- db
restart: on-failure
frontend:
build: frontend/
ports:
- "3000:3000"
volumes:
- ../frontend/src:/frontend/src
environment:
- CHOKIDAR_USEPOLLING=true
command: npm run dev
depends_on:
- backend
Every time I try and run docker compose build or docker compose up I get the following error:
failed to solve: failed to read dockerfile: open /var/lib/docker/tmp/buildkit-mount3961901539/Dockerfile: no such file or directory
Why is it looking for the Dockerfile in that location if it is right here in the WORKDIR?
Is there a way to clear it and just start over with the dockerfile in the current directory?
>Solution :
For your backend service, you’re telling docker compose that the dockerfile is in the root directory with
build: /
It should be in the current directory, so change it to
build: .