How can I optimize my Django application with Docker Compose?

How can I optimize my Django application with Docker Compose?

You can optimize your Django application by using multi-stage builds in Docker, reducing image size, and caching dependencies.

What are multi-stage builds and how do they help?

Multi-stage builds allow you to use multiple FROM statements in your Dockerfile, which helps in creating smaller final images.

Can you give me an example of a Dockerfile using multi-stage builds?

Sure! Here's a simple example:

# First stage: build
FROM python:3.9 AS builder
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Second stage: production
FROM python:3.9-slim
WORKDIR /app
COPY --from=builder /app .
COPY . .
CMD ["python", "manage.py", "runserver"]