Task 06 — Slim the Image

How to evaluate

csot submit ./solutions -w week-02 -t 06

Submit as: 06/Dockerfile CI times out pushing a 1.2 GB image. The current Dockerfile uses the full python:3.12 base and installs build tooling it never needs at runtime. Shrink the runtime image while keeping the app working.

The app is the same server.py from Task 01 (returns {"ok":true} on /).

What the grader checks

• docker build succeeds (4 pts)
• GET / still returns {"ok":true} (4 pts)
• Final image is under 250 MB (4 pts)

Hints

• python:3.12-slim or python:3.12-alpine are dramatically smaller.
• Multi-stage builds let you drop build-time tooling from the final stage.
• The reference bloated Dockerfile (for context):

FROM python:3.12
RUN apt-get update && apt-get install -y build-essential
WORKDIR /app
COPY . .
CMD python server.py

Points: 12