chore: update sgl version and fix h100 wideep example (#2169)

Author: ishandhanani

README.md

@@ -176,7 +176,6 @@ uv pip install ai-dynamo[sglang]
 
 Run the backend/worker like this:
 ```
-# Note the '.worker' in the module path for SGLang
 python -m dynamo.sglang.worker --help
 ```
 

components/backends/sglang/docs/dsr1-wideep-h100.md

@@ -9,15 +9,13 @@ Dynamo supports SGLang's implementation of wide expert parallelism and large sca
 
 ## Instructions
 
-1. Build the SGLang DeepEP container.
+1. Pull the SGLang container.
 
 ```bash
-git clone -b v0.4.9.post2 https://github.com/sgl-project/sglang.git
-cd sglang/docker
-docker build -f Dockerfile -t sgl-widepep .
+docker pull lmsysorg/sglang:latest
 ```
 
-You will now have a `sgl-widepep:latest` image
+You can also pull a specific tag from the [lmsys dockerhub](https://hub.docker.com/r/lmsysorg/sglang/tags)
 
 2. Build the Dynamo container
 

container/Dockerfile.sglang

@@ -27,7 +27,7 @@ ARG ARCH=amd64
 ARG ARCH_ALT=x86_64
 
 # Make sure to update the dependency version in pyproject.toml when updating this
-ARG SGLANG_VERSION="0.4.9.post1"
+ARG SGLANG_VERSION="0.4.9.post6"
 
 ##################################
 ########## Base Image ############

container/Dockerfile.sglang-wideep

@@ -13,9 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Note this container is built from a local dockerfile
-# Please see instructions in examples/sglang/README.md
-FROM sgl-wideep:latest
+# This should be pinned to the sglang version that is installed with Dynamo
+# in the pyproject.toml
+FROM lmsysorg/sglang:v0.4.9.post6-cu126
 
 # Add NIXL build dependencies
 RUN apt-get update -y && \
@@ -80,10 +80,7 @@ WORKDIR /sgl-workspace
 ENV SGL_FORCE_SHUTDOWN=1
 
 WORKDIR /sgl-workspace
-# include flush cache endpoint and server support
-# https://github.com/ai-dynamo/dynamo/pull/1769
-ARG DYNAMO_COMMIT="bd91dca6141e05bcfbe9bd4dea54cc58b9e37d75"
-RUN git clone https://github.com/ai-dynamo/dynamo.git && cd dynamo && git checkout ${DYNAMO_COMMIT}
+RUN git clone https://github.com/ai-dynamo/dynamo.git
 
 # install dynamo in editable mode
 WORKDIR /sgl-workspace/dynamo
@@ -126,8 +123,6 @@ RUN cargo build --release
 RUN cd lib/bindings/python && pip install --break-system-packages -e . && cd ../../..
 RUN pip install --break-system-packages -e .
 
-ENV PYTHONPATH=/sgl-workspace/dynamo/components/planner/src:/sgl-workspace/dynamo/examples/sglang:$PYTHONPATH
-
 RUN wget --tries=3 --waitretry=5 https://github.com/nats-io/nats-server/releases/download/v2.10.28/nats-server-v2.10.28-${ARCH}.deb && \
     dpkg -i nats-server-v2.10.28-${ARCH}.deb && rm nats-server-v2.10.28-${ARCH}.deb
 
@@ -168,7 +163,7 @@ ENV PATH=/sgl-workspace/perf_analyzer/build/perf_analyzer/src/perf-analyzer-buil
 
 RUN pip install --break-system-packages genai-perf
 
-COPY examples/sglang/configs/deepseek_r1/wideep/* /sgl-workspace/dynamo/examples/sglang/configs/
-COPY examples/sglang/utils/benchmarking/* /sgl-workspace/dynamo/examples/sglang/utils/
+# https://pypi.org/project/sglang-router/0.1.5 is latest
+RUN pip install sglang-router==0.1.5
 
-WORKDIR /sgl-workspace/dynamo/examples/sglang
+WORKDIR /sgl-workspace/dynamo/components/backends/sglang

pyproject.toml

@@ -73,10 +73,7 @@ vllm = [
 sglang = [
     "uvloop",
     "nixl",
-    "sglang[runtime_common]==0.4.9.post1",
-    "einops",
-    "sgl-kernel==0.2.4",
-    "sentencepiece",
+    "sglang[all]==0.4.9.post6",
 ]
 
 llama_cpp = [