b897cf8e5f
Updating Studio in the container previously meant pulling a fresh ~25GB image
(or at best the ~6GB fused Studio layer) for what is usually a small Python/UI
change. Add a baked helper so a running container can update in place:
docker exec <container> unsloth-studio-update
It updates only the Studio packages -- the backend code and the pre-built
frontend, which ships inside the unsloth wheel -- with `pip install -U
--no-deps unsloth unsloth_zoo`, then restarts just the studio service via
supervisor. The torch/CUDA stack is left untouched, so it is safe in both GPU
and CPU-only containers. This deliberately avoids `unsloth studio update`,
which re-runs the full installer and re-probes the GPU to pick torch wheels --
in a container started without --gpus that finds no GPU and can downgrade torch
to CPU/cu126.
Options: --ref <branch|tag|sha> installs from git (track main) instead of the
latest PyPI release; --with-deps also updates dependencies; --no-restart defers
the restart. After the swap the helper smoke-imports studio.backend.main and,
if a transitive dep is now missing, points the user at --with-deps.
The update lands in the container's writable layer (survives docker restart);
mount -v unsloth_studio_home:/opt/unsloth-studio to keep it across a recreate.
171 lines
9.3 KiB
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171 lines
9.3 KiB
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# Full Unsloth image: base training stack + Studio + JupyterLab + sshd.
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#
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# This is the image published as docker.io/unsloth/unsloth:latest. It layers
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# Unsloth Studio on top of the lean base image (Dockerfile, published under
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# the `base` tags) and runs the same service trio as the previous production
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# image: Studio on 8000, JupyterLab on 8888, key-only sshd on 22.
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#
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# Build (local):
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# docker buildx build \
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# --build-arg BASE_IMAGE=unsloth-blackwell:test \
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# -f docker/Dockerfile.studio \
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# -t unsloth-blackwell:studio docker/
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#
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# Run:
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# docker run --rm --gpus all -p 8000:8000 -p 8888:8888 \
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# -v $HOME/.cache/huggingface:/workspace/.cache/huggingface \
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# unsloth-blackwell:studio
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#
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# Open http://localhost:8000 for Studio (first-boot admin password is printed
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# in the container logs and persisted under /opt/unsloth-studio/auth/) and
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# http://localhost:8888 for JupyterLab (password: JUPYTER_PASSWORD env; when
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# unset a random one is generated and printed in the container logs). On
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# hosts without GPU passthrough (Docker Desktop on macOS, Windows without
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# WSL2 GPU) add -e UNSLOTH_ALLOW_CPU=1: training is unavailable but Studio
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# chat / Data Recipes / GGUF tooling / Jupyter work.
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#
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# CI pins BASE_IMAGE to the just-published multi-arch base digest so the two
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# images always ship the same stack.
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ARG BASE_IMAGE=unsloth-blackwell:test
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FROM ${BASE_IMAGE}
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# Studio source ref to clone. Defaults to `main`, but a CI publish pipeline
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# that pins BASE_IMAGE to a digest should pin this too (same UNSLOTH_REF as
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# the base) so the published image is reproducible against a known ref.
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ARG UNSLOTH_STUDIO_REF=main
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ARG TARGETARCH
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# Services run as root in this revision (the base image is root-only by
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# design); the previous production image ran them as a dedicated uid-1001
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# user. Non-root parity is a tracked follow-up. sshd is key-only and stays
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# disabled unless a PUBLIC_KEY/SSH_KEY is provided, and no secrets are
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# persisted to disk (see studio_launch.sh).
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#
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# The JUPYTER_PORT / UNSLOTH_ENABLE_SSHD defaults exist so supervisord's
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# %(ENV_*)s expansions still resolve when someone bypasses the launcher
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# and runs supervisord directly.
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USER root
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ENV UNSLOTH_STUDIO_HOME=/opt/unsloth-studio \
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JUPYTER_PORT=8888 \
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UNSLOTH_ENABLE_SSHD=false \
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DEBIAN_FRONTEND=noninteractive
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# install.sh needs curl + git; supervisor + openssh-server run the service
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# trio. The base image already has python + uv + pip.
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends \
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curl git ca-certificates supervisor openssh-server \
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&& rm -rf /var/lib/apt/lists/*
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# Clone + install Studio into a dedicated venv under $UNSLOTH_STUDIO_HOME.
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# --local makes install.sh use the just-cloned source tree (editable
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# install), so the source dir MUST persist for the venv's `unsloth_cli`
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# entrypoint to keep resolving. Move it under $UNSLOTH_STUDIO_HOME/src
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# (already inside the persistent layer) instead of deleting it. Strip
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# .git to save ~120MB.
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#
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# The llama.cpp symlink BEFORE install.sh points Studio's prebuilt dir at
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# the bundle already baked into the base image (validated, sha256-checked,
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# UNSLOTH_PREBUILT_INFO.json present), so the installer's prebuilt step
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# recognises it and skips a second ~400MB download. The
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# .unsloth-studio-owned marker satisfies setup.sh's ownership assertion for
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# custom STUDIO_HOMEs -- the dir IS provisioned exclusively for Studio.
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#
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# UNSLOTH_TORCH_INDEX_FAMILY pins the torch wheel index for the Studio
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# venv: at build time there is no GPU and no nvidia-smi, so install.sh's
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# probing would land on cpu or cu126 wheels depending on which host built
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# the image. cu128 on BOTH arches, mirroring the base venv: cu130 wheels
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# would silently lift the arm64 driver floor to 580+ while the base venv
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# keeps the documented 570+ floor. DGX Spark / GB10 (sm_121) support comes
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# from the same NVRTC cu13 swap the base image applies to its venv --
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# repeated below for the Studio venv's own bundled libnvrtc (the base's
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# arm64 layer already installed cuda-nvrtc-13-0, so the cu13 .so exists).
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#
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# UNSLOTH_PYTHON=3.12 pins the Studio venv to the SAME Python minor as the base
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# venv (install.sh defaults Linux to 3.13). Matching minors makes the two venvs'
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# nvidia-*-cu12 CUDA wheels byte-identical, which lets the dedup RUN further down
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# replace the Studio venv's ~3.7GB of CUDA .so with symlinks into the base venv's
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# copies (cudnn/cublas/nccl/... are plain C libs, Python-minor independent).
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#
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# fetch+checkout FETCH_HEAD instead of `clone --branch` because the CI
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# pipeline passes a commit SHA as the ref (clone --branch only accepts
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# branch/tag names).
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RUN set -eux \
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&& case "${TARGETARCH:-amd64}" in \
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amd64|arm64) TORCH_FAMILY="cu128" ;; \
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*) echo "ERROR: unsupported TARGETARCH=${TARGETARCH}" >&2; exit 1 ;; \
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esac \
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&& mkdir -p "${UNSLOTH_STUDIO_HOME}" \
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&& ln -s /opt/unsloth/llama.cpp "${UNSLOTH_STUDIO_HOME}/llama.cpp" \
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&& touch /opt/unsloth/llama.cpp/.unsloth-studio-owned \
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&& git init -q "${UNSLOTH_STUDIO_HOME}/src" \
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&& cd "${UNSLOTH_STUDIO_HOME}/src" \
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&& git remote add origin https://github.com/unslothai/unsloth \
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&& git fetch -q --depth 1 origin "${UNSLOTH_STUDIO_REF}" \
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&& git checkout -q FETCH_HEAD \
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&& UNSLOTH_STUDIO_HOME="${UNSLOTH_STUDIO_HOME}" \
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UNSLOTH_TORCH_INDEX_FAMILY="${TORCH_FAMILY}" \
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UNSLOTH_PYTHON=3.12 \
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bash install.sh --local \
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# Fail loud if the Studio venv torch missed the pinned CUDA family (an
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# install.sh that ignores UNSLOTH_TORCH_INDEX_FAMILY falls back to
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# nvidia-smi probing, which cannot work at build time and lands on cu126
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# wheels with no sm_100/sm_120 kernels). metadata check only: importing
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# torch needs native libs, which QEMU arm64 builds cannot load.
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&& "${UNSLOTH_STUDIO_HOME}/unsloth_studio/bin/python" -c "import sys; from importlib.metadata import version; assert sys.version_info[:2] == (3, 12), 'Studio venv python %d.%d is not 3.12 (UNSLOTH_PYTHON pin ignored) -- CUDA dedup below depends on it' % sys.version_info[:2]; v = version('torch'); assert v.endswith('+${TORCH_FAMILY}'), 'Studio venv torch ' + v + ' does not match ${TORCH_FAMILY}'; print('Studio venv python %d.%d' % sys.version_info[:2], 'torch', v)" \
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# setup.sh may relink the root llama-quantize into build/bin; prove the
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# relinked quantizer still resolves its libraries, or GGUF export breaks
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# at runtime with "No working quantizer found". Content check, not rc:
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# llama-quantize exits nonzero on --help, while a loader failure prints
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# "error while loading shared libraries" and no usage text.
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&& { "${UNSLOTH_STUDIO_HOME}/llama.cpp/llama-quantize" --help 2>&1 || true; } | grep -q "usage" \
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&& rm -rf "${UNSLOTH_STUDIO_HOME}/src/.git" \
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"${UNSLOTH_STUDIO_HOME}/src/studio/frontend/node_modules" \
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/root/.cache \
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&& if [ "${TARGETARCH:-amd64}" = "arm64" ]; then \
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for NVRTC_DIR in "${UNSLOTH_STUDIO_HOME}"/unsloth_studio/lib/python*/site-packages/nvidia/cuda_nvrtc/lib; do \
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if [ -f "${NVRTC_DIR}/libnvrtc.so.12" ]; then \
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mv "${NVRTC_DIR}/libnvrtc.so.12" "${NVRTC_DIR}/libnvrtc.so.12.cu128.orig"; \
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ln -s /usr/local/cuda-13.0/lib64/libnvrtc.so.13 "${NVRTC_DIR}/libnvrtc.so.12"; \
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fi; \
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done; \
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fi \
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&& BASE_NV=/opt/unsloth-venv/lib/python3.12/site-packages/nvidia \
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&& STU_NV="${UNSLOTH_STUDIO_HOME}/unsloth_studio/lib/python3.12/site-packages/nvidia" \
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&& if [ ! -d "${STU_NV}" ] || [ ! -d "${BASE_NV}" ]; then \
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echo ">> nvidia dir missing (STU=${STU_NV} BASE=${BASE_NV}); skipping CUDA dedup"; \
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else \
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find "${UNSLOTH_STUDIO_HOME}/unsloth_studio" -name '*.a' -delete; \
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rm -f "${STU_NV}/nvshmem/lib/libnvshmem_device.bc"; \
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for c in cudnn cublas cusparselt nccl cusolver cusparse cufft curand nvjitlink cuda_cupti nvshmem npp; do \
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b="${BASE_NV}/${c}/lib"; s="${STU_NV}/${c}/lib"; \
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{ [ -d "$b" ] && [ -d "$s" ]; } || { echo ">> skip ${c} (dir missing)"; continue; }; \
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if [ "${c}" = "npp" ]; then \
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rm -rf "$s" && ln -s "$b" "$s" && readlink -e "$s" >/dev/null; \
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echo ">> deduped npp -> base (pruned)"; \
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elif [ "$(cd "$s" && ls | sort | tr '\n' ' ')" = "$(cd "$b" && ls | sort | tr '\n' ' ')" ]; then \
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rm -rf "$s" && ln -s "$b" "$s" && readlink -e "$s" >/dev/null; \
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echo ">> deduped ${c} -> base"; \
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else \
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echo ">> skip ${c} (file set differs base vs studio)"; \
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fi; \
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done; \
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echo "studio venv size after dedup:"; du -sh "${UNSLOTH_STUDIO_HOME}/unsloth_studio"; \
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fi
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COPY supervisord.conf /etc/supervisor/supervisord.conf
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COPY studio_launch.sh /usr/local/bin/unsloth-studio-launch
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# In-place Studio updater: `docker exec <container> unsloth-studio-update`
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# refreshes the Studio packages (backend + baked frontend) and restarts the
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# service, without pulling a new image or touching the torch/CUDA stack.
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COPY unsloth_studio_update.sh /usr/local/bin/unsloth-studio-update
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RUN chmod +x /usr/local/bin/unsloth-studio-launch /usr/local/bin/unsloth-studio-update
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# Studio web UI, JupyterLab, sshd. All bind 0.0.0.0 inside the container's
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# network namespace; the operator publishes them explicitly with -p.
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EXPOSE 8000 8888 22
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# The base ENTRYPOINT (unsloth-entrypoint) still runs its GPU pre-flight
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# first, then hands off to the service launcher.
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CMD ["/usr/local/bin/unsloth-studio-launch"]
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