feat(data-track/week-5): add Week 5 practice exercises#20
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May 21, 2026 22:43
Exercises cover the five Week 5 content chapters: - Ex1: Minimal Pipeline to Container (Ch3 Docker Fundamentals) - Ex2: Cache-Friendly Dockerfile with requirements.txt (Ch3 + Ch2) - Ex3: Cache-Friendly Dockerfile with uv (Ch3 + Ch2) - Ex4: Compare both Docker approaches, written answers (Ch2 + Ch3) - Ex5: CI Smoke Test — GitHub Actions + pytest (Ch5) - Ex6: Environment Variable Patterns — -e, --env-file, ARG vs ENV (Ch3) - Ex7: Image Tagging Strategy — docker tag, commit SHA (Ch4) Verified end-to-end: - Ex1/2/6: pipeline.py runs cleanly (API key present: False) - Ex3: uv.lock generated from pyproject.toml (uv 0.10.8) - Ex5: pytest test_smoke.py passes (1 passed in 0.02s) - Ex4/7: conceptual — verified against reference answers in solutions/ - Dockerfiles (Ex1-3, 6) and GitHub Actions (Ex5) require Docker/GitHub to run; solutions carry # WHY comments for each instruction
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The practice chapter (week_5__6_practice.md) references 'src/pipeline.py' in
Exercise 1. Align exercises 1-3 and 6 to use src/ subdirectory structure.
- Rename exercise_{1,2,3,6}/pipeline.py -> src/pipeline.py
- Update all Dockerfiles (starter + solution) to COPY src/ and CMD src/pipeline.py
- Update READMEs to reference src/pipeline.py
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Summary
Scaffolds 7 practice exercises for Week 5: Containers & CI/CD in the HYF Data Track curriculum.
Exercises
exercise_1/exercise_2/exercise_3/exercise_4/exercise_5/exercise_6/exercise_7/Layout
Single-branch +
solutions/pattern (same as Weeks 1–4). Eachexercise_N/solutions/holds the reference answer with# WHYcommentary.Verification
pipeline.py(Ex1/2/6): runs cleanly —API key present: Falseuv.lock(Ex3): generated with uv 0.10.8test_smoke.py(Ex5):pytest— 1 passed in 0.02s# WHYcomments for each instructionCurriculum chapter
The practice chapter
week_5__6_practice.mdwill be wired to this folder with Codespace +📦 Files:callouts in a follow-up commit to the datatrack repo.