### Multi-Stage Dockerfiles
By compiling code in a heavy builder stage and copying only the binary into a scratch/distroless runner stage, image sizes shrink from 800MB to 15MB.

Python 3.11

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Interactive Challenge

+70 XP

Challenge Objective

Calculate image size reduction percentage and print 'REDUCTION:97%'.

solution.py

UTF-84 SpacesAuto-saved

cpython3.11:~/workspace

CPython 3.11.8 (WASM)

$python3 -u solution.py

Click "Compile & Run" (or press Ctrl + Enter) to compile AST, verify bytecode, and execute the solution.

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Module 1: Docker Internals & Multi-Stage Builds•Lesson 1

1.1 Multi-Stage Image Layer Optimization