From cadfae666d100714d1f742b20aa4b9c3f2f846a6 Mon Sep 17 00:00:00 2001
From: ishandhanani <82981111+ishandhanani@users.noreply.github.com>
Date: Sun, 26 Oct 2025 16:39:51 -0700
Subject: [PATCH] fix broken deepep/flashmla install in container by adding
 `--no-build-isolation` (#12170)

---
 docker/Dockerfile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docker/Dockerfile b/docker/Dockerfile
index e99ede4b3..a8ab36bb2 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -138,7 +138,7 @@ RUN cd /sgl-workspace/DeepEP && \
         echo "Unsupported CUDA version: $CUDA_VERSION" && exit 1 \
         ;; \
     esac && \
-    NVSHMEM_DIR=${NVSHMEM_DIR} TORCH_CUDA_ARCH_LIST="${CHOSEN_TORCH_CUDA_ARCH_LIST}" pip install .
+    NVSHMEM_DIR=${NVSHMEM_DIR} TORCH_CUDA_ARCH_LIST="${CHOSEN_TORCH_CUDA_ARCH_LIST}" pip install --no-build-isolation .
 
 # Install flashmla
 RUN git clone https://github.com/deepseek-ai/FlashMLA.git flash-mla && \
@@ -148,7 +148,7 @@ RUN git clone https://github.com/deepseek-ai/FlashMLA.git flash-mla && \
       if [ "$CUDA_VERSION" = "12.6.1" ]; then \
         export FLASH_MLA_DISABLE_SM100=1; \
       fi && \
-      pip install -v . ;
+      pip install --no-build-isolation -v . ;
 
 # Python tools
 RUN python3 -m pip install --no-cache-dir \