Fix decord dependency for aarch64 docker build (#10529)

.github/workflows/release-docker-gb200.yml

@@ -33,4 +33,4 @@ jobs:
           version=$(cat python/sglang/version.py | cut -d'"' -f2)
           tag=v${version}-cu129-gb200
 
-          docker buildx build --platform linux/arm64 --push --output type=image -t lmsysorg/sglang:${tag} -f docker/Dockerfile.gb200 --build-arg CUDA_VERSION=12.9.1 --build-arg BUILD_TYPE=blackwell --no-cache .
+          docker buildx build --platform linux/arm64 --push --output type=image -t lmsysorg/sglang:${tag} -f docker/Dockerfile.gb200 --build-arg CUDA_VERSION=12.9.1 --build-arg BUILD_TYPE=blackwell_aarch64 --no-cache .

docker/Dockerfile.gb200

 ARG CUDA_VERSION=12.9.1
-FROM nvidia/cuda:${CUDA_VERSION}-cudnn-devel-ubuntu22.04
+FROM nvidia/cuda:${CUDA_VERSION}-cudnn-devel-ubuntu22.04 as base
 
-ARG BUILD_TYPE=blackwell
+ARG BUILD_TYPE=blackwell_aarch64
+ARG BRANCH_TYPE=remote
 ARG DEEPEP_COMMIT=1b14ad661c7640137fcfe93cccb2694ede1220b0
 ARG CMAKE_BUILD_PARALLEL_LEVEL=2
 ARG SGL_KERNEL_VERSION=0.3.10
@@ -62,10 +63,21 @@ RUN mkdir -p /tmp/gdrcopy && cd /tmp \
 # Fix DeepEP IBGDA symlink
 RUN ln -sf /usr/lib/$(uname -m)-linux-gnu/libmlx5.so.1 /usr/lib/$(uname -m)-linux-gnu/libmlx5.so
 
-# Clone and install SGLang
+FROM scratch AS local_src
+COPY . /src
+
+FROM base AS build-image
+# Install SGLang
 WORKDIR /sgl-workspace
+ARG BRANCH_TYPE
+COPY --from=local_src /src /tmp/local_src
+RUN if [ "$BRANCH_TYPE" = "local" ]; then \
+        cp -r /tmp/local_src /sgl-workspace/sglang; \
+    else \
+        git clone --depth=1 https://github.com/sgl-project/sglang.git /sgl-workspace/sglang; \
+    fi \
+ && rm -rf /tmp/local_src
 RUN python3 -m pip install --no-cache-dir --upgrade pip setuptools wheel html5lib six \
- && git clone --depth 1 https://github.com/sgl-project/sglang.git \
  && cd sglang \
  && case "$CUDA_VERSION" in \
       12.9.1) CUINDEX=129 ;; \

python/pyproject.toml

@@ -89,7 +89,8 @@ tracing = [
     "opentelemetry-exporter-otlp-proto-grpc",
 ]
 all = ["sglang[test]", "sglang[decord]"]
-blackwell = ["nvidia-cutlass-dsl==4.2.0", "sglang[test]"]
+blackwell = ["nvidia-cutlass-dsl==4.2.0", "sglang[test]", "sglang[decord]"]
+blackwell_aarch64 = ["nvidia-cutlass-dsl==4.2.0", "sglang[test]"]
 dev = ["sglang[test]"]
 
 [project.urls]