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Make baked GPT-2 weights readable by the Lambda user #7

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Merged
m-messer merged 1 commit into from
Nov 4, 2026
Merged

Make baked GPT-2 weights readable by the Lambda user #7

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4 changes: 4 additions & 0 deletions Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,11 @@ COPY --from=builder ${VIRTUAL_ENV} ${VIRTUAL_ENV}
ENV GPT2_MODEL_DIR=/app/hf_models/gpt2 \
HF_HOME=/tmp/hf
COPY scripts/download_gpt2.py /tmp/download_gpt2.py
# safetensors >=0.8 writes model.safetensors via a tempfile+rename, leaving it
# mode 0600 (root-only). Lambda runs as a non-root user, so open() fails (and
# safetensors reports that as "No such file or directory"). Make it readable.
RUN HF_HOME=/tmp/hf_build python /tmp/download_gpt2.py "${GPT2_MODEL_DIR}" && \
chmod -R a+rX "${GPT2_MODEL_DIR}" && \
rm -rf /tmp/hf_build /tmp/download_gpt2.py

# Copy evaluation function first (smaller, changes more often)
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