Solution#298
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Review Summary
The Dockerfile successfully implements all required task features: multi-stage build with Builder and Runner stages, proper ARG for Python version, database migration execution, and server configuration on 0.0.0.0:8080. While the ENV PYTHONUNBUFFERED=1 variable placement in the Builder stage is technically suboptimal (as noted in the comments), this is a non-blocking quality concern—the application will still build and run correctly; the only impact is that Python output may be buffered rather than appearing in real-time. The INSTRUCTION.md is complete with all required sections. All core checklist requirements are satisfied.
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Footnotes
| https://hub.docker.com/repository/docker/difuz1x/todoapp/general | ||
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| to run the app: | ||
| docker pull difuz1x/todoapp:1.0.0 |
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Critical issue: ENV PYTHONUNBUFFERED=1 is set in the Builder stage, but the application runs in the Runner stage. Each FROM instruction creates a new stage with its own environment. This variable needs to be set in the Runner stage (after line 15) for the unbuffered Python output to work during runtime.
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