| # Canonical OpenEnv runtime layer: a self-contained CPython (python-build-standalone) with the pinned | |
| # OpenEnv release and its server dependencies at /opt/openenv. It contains no environment code. | |
| # Any OpenEnv image, on any glibc Linux base, can take it with | |
| # COPY --link --from=<this image>@sha256:... / / | |
| # so every image that does carries the same layer bytes. | |
| FROM python:3.12-slim-bookworm AS build | |
| RUN apt-get update && apt-get install -y --no-install-recommends git ca-certificates && rm -rf /var/lib/apt/lists/* \ | |
| && pip install --no-cache-dir uv==0.9.5 | |
| ENV UV_PYTHON_INSTALL_DIR=/opt/openenv/python UV_COMPILE_BYTECODE=1 UV_LINK_MODE=copy UV_NO_CACHE=1 | |
| RUN uv python install 3.12 \ | |
| && uv venv --seed --python 3.12 --python-preference only-managed /opt/openenv/venv \ | |
| && uv pip install --python /opt/openenv/venv/bin/python \ | |
| "openenv @ git+https://github.com/meta-pytorch/OpenEnv.git@86a180ede21e044f7929b9a7783ad83aa67d83a3" \ | |
| && /opt/openenv/venv/bin/python -c "import openenv, fastapi, uvicorn" | |
| RUN mkdir -p /opt/openenv/www && echo "OpenEnv runtime layer for Arena (pinned OpenEnv 86a180ede21e)." > /opt/openenv/www/index.html | |
| FROM busybox:1.36.1-musl AS busybox | |
| # The image holds nothing but the runtime tree, so `COPY --link --from=<this image> / /` adds exactly | |
| # these files with exactly these timestamps: the copied layer comes out the same in every build. | |
| # A static busybox serves one page so the Space itself can run without a base OS. | |
| FROM scratch | |
| COPY --from=build /opt/openenv /opt/openenv | |
| COPY --from=busybox /bin/busybox /opt/openenv/bin/busybox | |
| EXPOSE 7860 | |
| CMD ["/opt/openenv/bin/busybox", "httpd", "-f", "-p", "7860", "-h", "/opt/openenv/www"] | |