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Python Dockerfile

Source: docker/python/Dockerfile

Dockerfile​

FROM python:3.11-slim
WORKDIR /app
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt
COPY . .
CMD ["python","-m","http.server","8000"]
EXPOSE 8000

What It Does​

  • Uses Python 3.11 slim image.
  • Installs dependencies from requirements.txt.
  • Starts a simple HTTP server on port 8000.

Required Files In Build Context​

  • requirements.txt
  • Python project source files

Docker Compose Example​

version: '3.8'
services:
  app:
    build:
      context: .
      dockerfile: docker/python/Dockerfile
    container_name: python-app
    env_file:
      - .env
    ports:
      - "8000:8000"
    volumes:
      - .:/app
    restart: unless-stopped

Other Files You Need​

  • .env if your app uses environment-based config
  • Entry module/script for your app
  • .dockerignore

Build (Docker)​

docker build -t python-app -f docker/python/Dockerfile .

Run (Docker)​

docker run --rm -p 8000:8000 python-app

Run (Docker Compose)​

docker compose up --build -d