The image was 2.45GB, of which the venv is 1.73GB. The build was already
multi-stage and already installed CPU-only torch, so the remaining weight was
not build tooling - it was payload inside the installed packages that the
running service can never execute.
Removed in the build stage, before the runtime stage copies /opt/venv, so the
bytes never enter the final image:
- bundled test suites (~237MB; torch/test is 83MB, pandas/tests 40MB)
- torch/include (62MB), C++ headers for compiling against libtorch
- torch/bin (50MB), gtest binaries and protoc; torch_shm_manager is kept
pytest and httpx2 move to requirements-dev.txt: the image copies app/, cli/,
scripts/, data/ and serve.py, never tests/, so the test stack was unusable
there regardless.
sympy was checked and deliberately kept - 'import sentence_transformers' does
pull it in through torch.fx, so removing it would break embeddings.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
