The Python test suite was deleted in 4527c747b but its dependencies stayed behind, so pytest, pytest-docker and the docker SDK still install into every image variant, and moto joins them for anyone running pip install open-webui[all]. No Python test file remains in the repository, nothing imports these packages, and no CI job runs pytest. They are removed from backend/requirements.txt and from the all extra, which are the only two channels they ship through.
netcat-openbsd goes for the same reason. It was added in January 2024 without a consumer and nc has never been invoked anywhere in the repository, in any script, workflow or compose file. Both the readiness wait and the healthcheck use curl, and the Ollama install script does not ask for it either.
uv.lock is regenerated output, not hand-edited. It drops three of the four packages plus three transitives that nothing else needs, with no version changes and no additions. pytest stays locked because pytest-asyncio in the dev group still requires it. The dependency markers it adds on the CUDA and numpy entries are inert: each one is a superset of the condition its parent already installs under, and the resolved default install set is identical before and after.
This saves roughly 2 MB uncompressed, which is nothing next to the image as a whole. The point is that a production image stops shipping a test framework and a Docker socket client it never uses.
Everything else stays and is load-bearing. The container installs pip packages at runtime for user-authored tools and functions, so it needs git and a working compiler for anything that is not a prebuilt wheel, and libmariadb-dev for the manual MariaDB install. zstd is required for updating Ollama inside the bundled image. black looks dev-only but backs the code formatting endpoint.
Ref: https://github.com/open-webui/open-webui/discussions/28716
The backend rewrites its bundled static assets under open_webui/static on
startup. Under OpenShift's restricted SCC the container runs as a random UID
(member of GID 0), which cannot write to the root-owned static dir, so boot
logs fill with '[Errno 13] Permission denied: .../static/*'.
Give GID 0 the owner's permissions on that directory (chgrp 0 + chmod g=u),
the standard Red Hat arbitrary-UID idiom. Applied unconditionally since the
app writes there on every start; complements the opt-in USE_PERMISSION_HARDENING.
Pre-download NLTK punkt_tab during Docker build instead of at runtime.
This fixes document extraction failures in offline/airgapped environments
where the container cannot download the tokenizer data after restarts.
Fixes#21150
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