How do I containerize a Python app with Docker?

Containerizing a Python app with Docker involves creating a Dockerfile that specifies the environment, dependencies, and the command to run your application. This allows for easier deployment and scalability.

Steps to Containerize a Python App

  1. Create a Dockerfile in the root of your Python app.
  2. Specify the base image, usually from the official Python Docker images.
  3. Add your application code to the Docker image.
  4. Install any dependencies needed.
  5. Set the command to run your application.
  6. Build the Docker image and run a container from it.

Example Dockerfile

FROM python:3.10-slim # Set the working directory WORKDIR /usr/src/app # Copy requirements file COPY requirements.txt ./ # Install dependencies RUN pip install --no-cache-dir -r requirements.txt # Copy the rest of the application code COPY . . # Command to run the application CMD ["python", "app.py"]

Docker Python Containerization Dockerfile Deployment Development

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