Docker Image Optimization: Lessons from Production

Thu, 28 Nov 2024 00:00:00 +0000

At Solytics Partners, I optimized Docker images and achieved a 35% size reduction and 75% faster build times. Here’s what I learned.

The Problem

Most Dockerfiles I inherited looked like this:

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FROM python:3.11
WORKDIR /app
COPY . .
RUN pip install -r requirements.txt
CMD ["python", "app.py"]

This creates images that are: