fix: Copy cuda libraries from devel to runtime stage (#2301)

container/Dockerfile.sglang

@@ -404,7 +404,8 @@ ENV PATH="${VIRTUAL_ENV}/bin:${PATH}"
 # Copy nats and etcd from base image
 COPY --from=base /usr/bin/nats-server /usr/bin/nats-server
 COPY --from=base /usr/local/bin/etcd/ /usr/local/bin/etcd/
-ENV PATH=/usr/local/bin/etcd/:$PATH
+# Add ETCD and CUDA binaries to PATH so cicc and other CUDA tools are accessible
+ENV PATH=/usr/local/bin/etcd/:/usr/local/cuda/nvvm/bin:$PATH
 
 # Copy UCX from base image as plugin for NIXL
 # Copy NIXL source from wheel_builder image
@@ -416,6 +417,15 @@ ENV NIXL_PLUGIN_DIR=$NIXL_LIB_DIR/plugins
 COPY --from=base /usr/local/ucx /usr/local/ucx
 COPY --from=wheel_builder $NIXL_PREFIX $NIXL_PREFIX
 
+# Copy CUDA development tools (nvcc, headers, dependencies, etc.) from base devel image
+COPY --from=base /usr/local/cuda/bin/nvcc /usr/local/cuda/bin/nvcc
+COPY --from=base /usr/local/cuda/bin/cudafe++ /usr/local/cuda/bin/cudafe++
+COPY --from=base /usr/local/cuda/bin/ptxas /usr/local/cuda/bin/ptxas
+COPY --from=base /usr/local/cuda/bin/fatbinary /usr/local/cuda/bin/fatbinary
+COPY --from=base /usr/local/cuda/include/ /usr/local/cuda/include/
+COPY --from=base /usr/local/cuda/nvvm /usr/local/cuda/nvvm
+COPY --from=base /usr/local/cuda/lib64/libcudart.so* /usr/local/cuda/lib64/
+
 ENV LD_LIBRARY_PATH=\
 $NIXL_LIB_DIR:\
 $NIXL_PLUGIN_DIR:\