ci: add workflow to build frontend image (#4285)

Signed-off-by: Anant Sharma <anants@nvidia.com>
Signed-off-by: Hannah Zhang <hannahz@nvidia.com>
Signed-off-by: Dan Gil <dagil@nvidia.com>
Signed-off-by: zhongdaor <zhongdaor@nvidia.com>
Signed-off-by: Keiven Chang <keivenchang@users.noreply.github.com>
Signed-off-by: Jason Zhou <jasonzho@jasonzho-mlt.client.nvidia.com>
Signed-off-by: Jason Zhou <jasonzho@nvidia.com>
Signed-off-by: Dillon Cullinan <dcullinan@nvidia.com>
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Signed-off-by: Harrison Saturley-Hall <harrison.saturley.hall@gmail.com>
Signed-off-by: Julien Mancuso <jmancuso@nvidia.com>
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Signed-off-by: Shuaiyi Zhang <zhangsy28@lenovo.com>
Signed-off-by: Indrajit Bhosale <iamindrajitb@gmail.com>
Signed-off-by: Vladislav Nosivskoy <vladnosiv@gmail.com>
Signed-off-by: pvijayakrish <pvijayakrish@nvidia.com>
Signed-off-by: Dmitry Tokarev <dtokarev@nvidia.com>
Co-authored-by: Anant Sharma <anants@nvidia.com>
Co-authored-by: dagil-nvidia <dagil@nvidia.com>
Co-authored-by: hhzhang16 <54051230+hhzhang16@users.noreply.github.com>
Co-authored-by: Ryan McCormick <rmccormick@nvidia.com>
Co-authored-by: zhongdaor-nv <zhongdaor@nvidia.com>
Co-authored-by: Keiven C <213854356+keivenchang@users.noreply.github.com>
Co-authored-by: Keiven Chang <keivenchang@users.noreply.github.com>
Co-authored-by: ishandhanani <82981111+ishandhanani@users.noreply.github.com>
Co-authored-by: Jason Zhou <jasonzho@nvidia.com>
Co-authored-by: Jason Zhou <jasonzho@jasonzho-mlt.client.nvidia.com>
Co-authored-by: Dillon Cullinan <dcullinan92@gmail.com>
Co-authored-by: Aryan Bagade <73382554+AryanBagade@users.noreply.github.com>
Co-authored-by: mohammedabdulwahhab <furkhan324@berkeley.edu>
Co-authored-by: tmontfort <tmontfort@nvidia.com>
Co-authored-by: Thomas Montfort <61255722+tmonty12@users.noreply.github.com>
Co-authored-by: atchernych <atchernych@nvidia.com>
Co-authored-by: Harrison Saturley-Hall <hsaturleyhal@nvidia.com>
Co-authored-by: Kyle McGill <101670481+nv-kmcgill53@users.noreply.github.com>
Co-authored-by: Dmitry Tokarev <dtokarev@nvidia.com>
Co-authored-by: Yunzhou Liu <46603306+Elnifio@users.noreply.github.com>
Co-authored-by: Alec <35311602+alec-flowers@users.noreply.github.com>
Co-authored-by: Julien Mancuso <161955438+julienmancuso@users.noreply.github.com>
Co-authored-by: Yan Ru Pei <yanrpei@gmail.com>
Co-authored-by: Biswa Panda <biswa.panda@gmail.com>
Co-authored-by: Tzu-Ling Kan <tzulingk@nvidia.com>
Co-authored-by: Kris Hung <krish@nvidia.com>
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Hongkuan Zhou <tedzhouhk@gmail.com>
Co-authored-by: Ben Hamm <ben.hamm@gmail.com>
Co-authored-by: tanmayv25 <tanmay2592@gmail.com>
Co-authored-by: Tanmay Verma <tanmayv@nvidia.com>
Co-authored-by: Karen Chung <karenc@nvidia.com>
Co-authored-by: Shuaiyi Zhang <576893949@qq.com>
Co-authored-by: Shuaiyi Zhang <zhangsy28@lenovo.com>
Co-authored-by: Anthony Casagrande <acasagrande@nvidia.com>
Co-authored-by: Indrajit Bhosale <iamindrajitb@gmail.com>
Co-authored-by: Vladislav Nosivskoy <47858711+vladnosiv@users.noreply.github.com>
Co-authored-by: Pavithra Vijayakrishnan <160681768+pvijayakrish@users.noreply.github.com>
Co-authored-by: Kyle McGill <kmcgill@nvidia.com>

.github/workflows/build-frontend-image.yaml

+# SPDX-FileCopyrightText: Copyright (c) 2024-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+name: Build Frontend Image
+
+on:
+  push:
+    branches:
+    - main
+    - release/*.*.*
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_name || github.run_id }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+jobs:
+  build-frontend-image:
+    name: Build Frontend Image (${{ matrix.platform.arch }})
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - { arch: amd64, runner: gpu-l40-amd64 }
+          - { arch: arm64, runner: cpu-arm-r8g-4xlarge }
+    runs-on: ${{ matrix.platform.runner }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          driver: docker
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.24'
+      - name: Install dependencies
+        shell: bash
+        run: |
+          set -euo pipefail
+          # Install system dependencies from apt
+          sudo apt-get update && sudo apt-get install -y git build-essential protobuf-compiler
+          # Install Rust (cargo + rustc)
+          curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain stable
+          # Make cargo available to later steps
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Install cbindgen
+        shell: bash
+        run: |
+          set -euo pipefail
+          cargo install cbindgen
+      - name: Docker Login
+        uses: ./.github/actions/docker-login
+        with:
+          aws_default_region: ${{ secrets.AWS_DEFAULT_REGION }}
+          aws_account_id: ${{ secrets.AWS_ACCOUNT_ID }}
+          azure_acr_hostname: ${{ secrets.AZURE_ACR_HOSTNAME }}
+          azure_acr_user: ${{ secrets.AZURE_ACR_USER }}
+          azure_acr_password: ${{ secrets.AZURE_ACR_PASSWORD }}
+      - name: Build Frontend Container
+        id: build-image
+        uses: ./.github/actions/docker-build
+        env:
+          PLATFORMS: linux/${{ matrix.platform.arch }}
+          TARGETARCH: ${{ matrix.platform.arch }}
+        with:
+          framework: none
+          target: frontend
+          platform: ${{ env.PLATFORMS }}
+          ci_token: ${{ secrets.CI_TOKEN }}
+          aws_default_region: ${{ secrets.AWS_DEFAULT_REGION }}
+          sccache_s3_bucket: ${{ secrets.SCCACHE_S3_BUCKET }}
+          aws_account_id: ${{ secrets.AWS_ACCOUNT_ID }}
+          aws_access_key_id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws_secret_access_key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+      - name: Docker Tag and Push Frontend Image
+        uses: ./.github/actions/docker-tag-push
+        with:
+          local_image: ${{ steps.build-image.outputs.image_tag }}
+          push_tags: ai-dynamo/dynamo:${{ github.sha }}-frontend-${{ matrix.platform.arch }}
+          aws_push: 'false'
+          azure_push: 'true'
+          aws_account_id: ${{ secrets.AWS_ACCOUNT_ID }}
+          aws_default_region: ${{ secrets.AWS_DEFAULT_REGION }}
+          azure_acr_hostname: ${{ secrets.AZURE_ACR_HOSTNAME }}
+          azure_acr_user: ${{ secrets.AZURE_ACR_USER }}
+          azure_acr_password: ${{ secrets.AZURE_ACR_PASSWORD }}
\ No newline at end of file

container/Dockerfile

@@ -23,6 +23,7 @@
 
 ARG BASE_IMAGE
 ARG BASE_IMAGE_TAG
+ARG EPP_IMAGE="us-central1-docker.pkg.dev/k8s-staging-images/gateway-api-inference-extension/epp:v0.5.1"
 
 ARG PYTHON_VERSION
 ARG ENABLE_KVBM
@@ -545,3 +546,69 @@ USER dynamo
 
 ENTRYPOINT ["/opt/nvidia/nvidia_entrypoint.sh"]
 CMD []
+
+##############################################
+########## Frontend entrypoint image #########
+##############################################
+FROM ${EPP_IMAGE} AS epp
+
+FROM nvcr.io/nvidia/base/ubuntu:noble-20250619 AS frontend
+
+ARG PYTHON_VERSION
+RUN apt-get update -y \
+    && apt-get install -y --no-install-recommends \
+        # required for EPP
+        ca-certificates \
+        libstdc++6 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+
+# Create dynamo user with group 0 for OpenShift compatibility
+RUN userdel -r ubuntu > /dev/null 2>&1 || true \
+    && useradd -m -s /bin/bash -g 0 dynamo \
+    && [ `id -u dynamo` -eq 1000 ] \
+    && mkdir -p /home/dynamo/.cache /opt/dynamo /workspace \
+    && chown -R dynamo: /opt/dynamo /home/dynamo/.cache /workspace \
+    && chmod -R g+w /opt/dynamo /home/dynamo/.cache /workspace
+
+# Set HOME so ModelExpress can find the cache directory
+ENV HOME=/home/dynamo
+
+# Switch to dynamo user
+USER dynamo
+ENV DYNAMO_HOME=/opt/dynamo
+
+WORKDIR /
+COPY --chown=dynamo: --from=epp /epp /epp
+
+COPY --chown=dynamo: container/launch_message/frontend.txt /opt/dynamo/.launch_screen
+# Copy tests, benchmarks, deploy and components with correct ownership
+COPY --chown=dynamo: tests /workspace/tests
+COPY --chown=dynamo: examples /workspace/examples
+COPY --chown=dynamo: benchmarks /workspace/benchmarks
+COPY --chown=dynamo: deploy /workspace/deploy
+COPY --chown=dynamo: components/ /workspace/components/
+COPY --chown=dynamo: recipes/ /workspace/recipes/
+# Copy attribution files with correct ownership
+COPY --chown=dynamo: ATTRIBUTION* LICENSE /workspace/
+
+ENV VIRTUAL_ENV=/opt/dynamo/venv
+ENV PATH="/opt/dynamo/venv/bin:$PATH"
+# Copy virtual environment directly from dynamo_base (dev image)
+# This includes all installed packages: dynamo, nixl, requirements.txt, requirements.test.txt
+# Copy uv to system /bin
+COPY --chown=dynamo: --from=dev /bin/uv /bin/uvx /bin/
+RUN uv python install $PYTHON_VERSION
+COPY --chown=dynamo: --from=dev /opt/dynamo/venv/ /opt/dynamo/venv/
+
+# Setup environment for all users
+USER root
+RUN chmod 755 /opt/dynamo/.launch_screen && \
+    echo 'source /opt/dynamo/venv/bin/activate' >> /etc/bash.bashrc && \
+    echo 'cat /opt/dynamo/.launch_screen' >> /etc/bash.bashrc
+
+USER dynamo
+
+ENTRYPOINT ["/epp"]
+CMD ["/bin/bash"]
\ No newline at end of file

container/Dockerfile.frontend

-# syntax=docker/dockerfile:1.10.0
-# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
-
-ARG DYNAMO_BASE_IMAGE="dynamo:latest-none"
-ARG EPP_IMAGE="us-central1-docker.pkg.dev/k8s-staging-images/gateway-api-inference-extension/epp:v0.5.1-dirty"
-ARG PYTHON_VERSION=3.12
-
-FROM ${DYNAMO_BASE_IMAGE} AS dynamo_base
-
-FROM ${EPP_IMAGE} AS epp
-
-FROM nvcr.io/nvidia/base/ubuntu:noble-20250619 AS frontend
-
-ARG PYTHON_VERSION
-RUN apt-get update -y \
-    && apt-get install -y --no-install-recommends \
-        # required for EPP
-        ca-certificates \
-        libstdc++6 \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
-
-
-# Create dynamo user with group 0 for OpenShift compatibility
-RUN userdel -r ubuntu > /dev/null 2>&1 || true \
-    && useradd -m -s /bin/bash -g 0 dynamo \
-    && [ `id -u dynamo` -eq 1000 ] \
-    && mkdir -p /home/dynamo/.cache /opt/dynamo /workspace \
-    && chown -R dynamo: /opt/dynamo /home/dynamo/.cache /workspace \
-    && chmod -R g+w /opt/dynamo /home/dynamo/.cache /workspace
-
-# Set HOME so ModelExpress can find the cache directory
-ENV HOME=/home/dynamo
-
-# Switch to dynamo user
-USER dynamo
-ENV DYNAMO_HOME=/opt/dynamo
-
-WORKDIR /
-COPY --chown=dynamo: --from=epp /epp /epp
-
-COPY --chown=dynamo: container/launch_message/frontend.txt /opt/dynamo/.launch_screen
-# Copy tests, benchmarks, deploy and components with correct ownership
-COPY --chown=dynamo: tests /workspace/tests
-COPY --chown=dynamo: examples /workspace/examples
-COPY --chown=dynamo: benchmarks /workspace/benchmarks
-COPY --chown=dynamo: deploy /workspace/deploy
-COPY --chown=dynamo: components/ /workspace/components/
-COPY --chown=dynamo: recipes/ /workspace/recipes/
-# Copy attribution files with correct ownership
-COPY --chown=dynamo: ATTRIBUTION* LICENSE /workspace/
-
-ENV VIRTUAL_ENV=/opt/dynamo/venv
-ENV PATH="/opt/dynamo/venv/bin:$PATH"
-# Copy virtual environment directly from dynamo_base (dev image)
-# This includes all installed packages: dynamo, nixl, requirements.txt, requirements.test.txt
-# Copy uv to system /bin
-COPY --from=dynamo_base /bin/uv /bin/uvx /bin/
-RUN uv python install $PYTHON_VERSION
-COPY --chown=dynamo: --from=dynamo_base /opt/dynamo/venv/ /opt/dynamo/venv/
-
-# Setup environment for all users
-USER root
-RUN chmod 755 /opt/dynamo/.launch_screen && \
-    echo 'source /opt/dynamo/venv/bin/activate' >> /etc/bash.bashrc && \
-    echo 'cat /opt/dynamo/.launch_screen' >> /etc/bash.bashrc
-
-USER dynamo
-
-ENTRYPOINT ["/epp"]
-CMD ["/bin/bash"]
-

container/README.md

@@ -15,7 +15,6 @@ The NVIDIA Dynamo project uses containerized development and deployment to maint
   - `Dockerfile.trtllm` - For TensorRT-LLM inference backend
   - `Dockerfile.sglang` - For SGLang inference backend
   - `Dockerfile` - Base/standalone configuration
-  - `Dockerfile.frontend` - For Kubernetes Gateway API Inference Extension integration with EPP
   - `Dockerfile.epp` - For building the Endpoint Picker (EPP) image
 
 ### Stage Summary for Frameworks
@@ -165,39 +164,22 @@ The `build.sh` script is responsible for building Docker images for different AI
 
 ### Building the Frontend Image
 
-The frontend image is a specialized container that includes the Dynamo components (NATS, etcd, dynamo, NIXL, etc) along with the Endpoint Picker (EPP) for Kubernetes Gateway API Inference Extension integration. This image is primarily used for inference gateway deployments.
+The frontend image is a specialized container that includes the Dynamo components (Dynamo, NIXL, etc) along with the Endpoint Picker (EPP) for Kubernetes Gateway API Inference Extension integration. This image is primarily used for inference gateway deployments.
 
-**Step 1: Build the Custom Dynamo EPP Image**
-
-Follow the instructions in [`deploy/inference-gateway/README.md`](../deploy/inference-gateway/README.md) under "Build the custom EPP image" section. This process:
-- Clones the Gateway API Inference Extension repository
-- Applies Dynamo-specific patches for custom routing
-- Builds the Dynamo router as a static library
-- Creates a custom EPP image with integrated Dynamo routing capabilities
-
-**Step 2: Build the Dynamo Base Image**
-
-The base image contains the core Dynamo runtime components, NATS server, etcd, and Python dependencies:
 ```bash
-# Build the base dev image (framework=none for frontend-only deployment)
-# Note: --framework none defaults ENABLE_MEDIA_NIXL=false
-./build.sh --framework none --target dev
+# Build the frontend image (automatically builds EPP image as a dependency)
+./build.sh --framework none --target frontend
 ```
 
-**Step 3: Build the Frontend Image**
+The build process automatically:
+1. Clones the Gateway API Inference Extension (GAIE) repository
+2. Builds the custom EPP image with Dynamo routing capabilities
+3. Builds the frontend image with the EPP binary and Dynamo runtime components
 
-Now build the frontend image that combines the Dynamo base with the EPP:
+For more details, see [`deploy/inference-gateway/README.md`](../deploy/inference-gateway/README.md).
+
+**Note:** `--framework none` defaults `ENABLE_MEDIA_NIXL=false`.
 
-```bash
-# 2. Build the frontend image using the pre-built EPP
-docker buildx build --load --platform linux/amd64 \
-  --build-arg DYNAMO_BASE_IMAGE=dynamo:latest-none-dev \
-  --build-arg EPP_IMAGE={EPP_IMAGE_TAG} \
-  --build-arg PYTHON_VERSION=3.12 \
-  -f container/Dockerfile.frontend \
-  -t dynamo:latest-none-frontend \
-  .
-```
 #### Frontend Image Contents
 
 The frontend image includes:
@@ -206,8 +188,6 @@ The frontend image includes:
 - **NIXL**: NVIDIA InfiniBand Library for high-performance network communication
 - **Benchmarking Tools**: Performance testing utilities (aiperf, aiconfigurator, etc)
 - **Python Environment**: Virtual environment with all required dependencies
-- **NATS Server**: Message broker for Dynamo's distributed communication
-- **etcd**: Distributed key-value store for configuration and coordination
 
 #### Deployment
 

container/build.sh

@@ -121,6 +121,10 @@ SGLANG_BASE_IMAGE_TAG="25.06-cuda12.9-devel-ubuntu24.04"
 SGLANG_CUDA_VERSION="12.9.1"
 SGLANG_PYTHON_VERSION="3.10"
 
+# GAIE (Gateway API Inference Extension) configuration for frontend (required for EPP binary for frontend image)
+GAIE_REPO_URL="https://github.com/kubernetes-sigs/gateway-api-inference-extension.git"
+GAIE_VERSION="v0.5.1"
+
 PYTHON_VERSION="3.12"
 
 NIXL_REF=0.8.0
@@ -946,6 +950,43 @@ fi
 
 show_image_options
 
+# Handle FRONTEND target: build EPP image first
+if [[ ${TARGET^^} == "FRONTEND" ]]; then
+    echo "Building FRONTEND image - requires EPP image"
+
+    # Build base dynamo image first (framework=NONE, target=dev)
+    echo ""
+    echo "Building EPP image for Frontend..."
+    # Set up paths for GAIE
+    GAIE_CLONE_DIR="${BUILD_CONTEXT}/.build/external/gateway-api-inference-extension"
+
+    # Clone GAIE repo
+    echo ""
+    echo "Cloning GAIE repository at ${GAIE_VERSION}..."
+    $RUN_PREFIX rm -rf "${GAIE_CLONE_DIR}"
+    $RUN_PREFIX mkdir -p "$(dirname "${GAIE_CLONE_DIR}")"
+    $RUN_PREFIX git clone ${GAIE_REPO_URL} "${GAIE_CLONE_DIR}"
+    $RUN_PREFIX cd "${GAIE_CLONE_DIR}"
+    $RUN_PREFIX git checkout ${GAIE_VERSION}
+    $RUN_PREFIX cd "${BUILD_CONTEXT}"
+
+    # Build EPP image
+    echo ""
+    echo "Building EPP image..."
+    export GAIE_DIR="${GAIE_CLONE_DIR}"
+    export DYNAMO_DIR="${BUILD_CONTEXT}"
+
+    $RUN_PREFIX bash ${DYNAMO_DIR}/deploy/inference-gateway/build-epp-dynamo.sh
+
+    # Set EPP image tag (matches what build-epp-dynamo.sh produces)
+    EPP_IMAGE_TAG="us-central1-docker.pkg.dev/k8s-staging-images/gateway-api-inference-extension/epp:${GAIE_VERSION}-dirty"
+
+    echo "Successfully built EPP image: ${EPP_IMAGE_TAG}"
+
+    # Add build args for frontend image
+    BUILD_ARGS+=" --build-arg EPP_IMAGE=${EPP_IMAGE_TAG}"
+fi
+
 # Always build the main image first
 # Create build log directory for BuildKit reports
 BUILD_LOG_DIR="${BUILD_CONTEXT}/build-logs"

deploy/inference-gateway/README.md

@@ -150,43 +150,20 @@ You can either use the special FrontEnd image for the EPP_IMAGE in the Helm depl
 
 ##### 1. Build the custom EPP image #####
 
-If you choose to build your own image use the steps below.
-
-##### 1.1 Clone the official GAIE repo in a separate folder #####
+If you choose to build your own image, use the `container/build.sh` script with the `--target frontend` option:
 
 ```bash
-git clone https://github.com/kubernetes-sigs/gateway-api-inference-extension.git
-cd gateway-api-inference-extension
-git checkout v0.5.1
+./container/build.sh --framework none --target frontend
 ```
 
-##### 1.2 Build the Dynamo Custom EPP #####
+This command automatically:
+- Clones the Gateway API Inference Extension (GAIE) repository at the correct version
+- Builds the Dynamo Router static library
+- Applies the necessary patches to the EPP codebase
+- Builds the custom EPP image with Dynamo KV routing support
+- Builds the frontend image with the EPP binary and Dynamo runtime components
 
-###### 1.2.1 Clone the official EPP repo ######
-
-```bash
-# Clone the official GAIE repo in a separate folder
-cd path/to/gateway-api-inference-extension
-git clone git@github.com:kubernetes-sigs/gateway-api-inference-extension.git
-git checkout v0.5.1
-```
-
-###### 1.2.2 Run the script to build the EPP image ######
-
-The script will apply a custom patch to the code with your GAIE repo and build the image for you to use.
-
-```bash
-# Use your custom paths
-export DYNAMO_DIR=/path/to/dynamo
-export GAIE_DIR=/path/to/gateway-api-inference-extension
-
-# Run the script
-cd deploy/inference-gateway
-./build-epp-dynamo.sh
-```
-
-Under the hood the script applies the Dynamo Patch to the EPP code base; creates a Dynamo Router static library and builds a custom EPP image with it.
-Re-tag the freshly built image and push it to your registry.
+Re-tag the freshly built image and push it to your registry:
 
 ```bash
 docker images
@@ -194,7 +171,6 @@ docker tag <your-new-id> <your-image-tag>
 docker push <your-image-tag>
 ```
 
-
 **Note**
 You can also use the standard EPP image`us-central1-docker.pkg.dev/k8s-staging-images/gateway-api-inference-extension/epp:v0.4.0`. For the basic black box integration run: