Add dev-deepep docker image (#6198)

.github/workflows/release-docker-dev-deepep.yml

+name: Build Dev-DeepEP Docker Image
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  build-dev:
+    if: ${{ github.repository == 'sgl-project/sglang' }}
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Free disk space
+        uses: jlumbroso/free-disk-space@main
+        with:
+          tool-cache: false
+          docker-images: false
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: true
+          swap-storage: false
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Build and Push DeepEP Image
+        run: |
+          docker build . -f docker/Dockerfile.dev-deepep -t lmsysorg/sglang:dev-deepep --no-cache
+          docker push lmsysorg/sglang:dev-deepep

docker/Dockerfile.dev-deepep

+FROM lmsysorg/sglang:dev
+
+# CMake
+RUN apt-get update \
+&& apt-get install -y --no-install-recommends \
+build-essential \
+wget \
+libssl-dev \
+&& wget https://github.com/Kitware/CMake/releases/download/v3.27.4/cmake-3.27.4-linux-x86_64.sh \
+&& chmod +x cmake-3.27.4-linux-x86_64.sh \
+&& ./cmake-3.27.4-linux-x86_64.sh --skip-license --prefix=/usr/local \
+&& rm cmake-3.27.4-linux-x86_64.sh
+
+# Python
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        python3 \
+        python3-pip \
+    && ln -s /usr/bin/python3 /usr/bin/python
+
+# GDRCopy
+WORKDIR /tmp
+RUN git clone https://github.com/NVIDIA/gdrcopy.git
+WORKDIR /tmp/gdrcopy
+RUN git checkout v2.4.4
+
+RUN apt update
+RUN apt install -y nvidia-dkms-535
+RUN apt install -y build-essential devscripts debhelper fakeroot pkg-config dkms
+RUN apt install -y check libsubunit0 libsubunit-dev
+
+WORKDIR /tmp/gdrcopy/packages
+RUN CUDA=/usr/local/cuda ./build-deb-packages.sh
+RUN dpkg -i gdrdrv-dkms_*.deb
+RUN dpkg -i libgdrapi_*.deb
+RUN dpkg -i gdrcopy-tests_*.deb
+RUN dpkg -i gdrcopy_*.deb
+
+ENV GDRCOPY_HOME=/usr/src/gdrdrv-2.4.4/
+
+# IBGDA dependency
+RUN ln -s /usr/lib/x86_64-linux-gnu/libmlx5.so.1 /usr/lib/x86_64-linux-gnu/libmlx5.so
+RUN apt-get install -y libfabric-dev
+
+# DeepEP
+WORKDIR /sgl-workspace
+RUN git clone https://github.com/deepseek-ai/DeepEP.git
+
+# NVSHMEM
+WORKDIR /sgl-workspace
+RUN wget https://developer.download.nvidia.com/compute/redist/nvshmem/3.2.5/source/nvshmem_src_3.2.5-1.txz
+RUN tar -xf nvshmem_src_3.2.5-1.txz \
+    && mv nvshmem_src nvshmem
+
+WORKDIR /sgl-workspace/nvshmem
+RUN git apply /sgl-workspace/DeepEP/third-party/nvshmem.patch
+
+WORKDIR /sgl-workspace/nvshmem
+ENV CUDA_HOME=/usr/local/cuda
+RUN NVSHMEM_SHMEM_SUPPORT=0 \
+    NVSHMEM_UCX_SUPPORT=0 \
+    NVSHMEM_USE_NCCL=0 \
+    NVSHMEM_MPI_SUPPORT=0 \
+    NVSHMEM_IBGDA_SUPPORT=1 \
+    NVSHMEM_PMIX_SUPPORT=0 \
+    NVSHMEM_TIMEOUT_DEVICE_POLLING=0 \
+    NVSHMEM_USE_GDRCOPY=1 \
+    cmake -S . -B build/ -DCMAKE_INSTALL_PREFIX=/sgl-workspace/nvshmem/install -DCMAKE_CUDA_ARCHITECTURES=90 \
+    && cd build \
+    && make install -j
+
+WORKDIR /sgl-workspace/DeepEP
+ENV NVSHMEM_DIR=/sgl-workspace/nvshmem/install
+RUN NVSHMEM_DIR=/sgl-workspace/nvshmem/install pip install .
+
+RUN set -euxo ; \
+    curl --proto '=https' --tlsv1.2 -sSf https://just.systems/install.sh | bash -s -- --to /usr/local/bin
+
+# Set workspace
+WORKDIR /sgl-workspace