Add build script for multi-platform images

- Add build script for multi-platform images
- Update docker deployment document

(cherry picked from commit ef79821f29)

build-and-push.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+set -e
+
+# Configuration
+IMAGE_NAME="ghcr.io/hkuds/lightrag"
+DOCKERFILE="Dockerfile.offline"
+TAG="offline"
+
+# Get version
+VERSION=$(git describe --tags --abbrev=0 2>/dev/null || echo "dev")
+
+echo "Building ${IMAGE_NAME}:${TAG} (version: ${VERSION})"
+
+# Build and push
+docker buildx build \
+  --platform linux/amd64,linux/arm64 \
+  --file ${DOCKERFILE} \
+  --tag ${IMAGE_NAME}:${TAG} \
+  --tag ${IMAGE_NAME}:${VERSION}-${TAG} \
+  --push \
+  .
+
+echo "✓ Build complete!"
+echo "Image pushed: ${IMAGE_NAME}:${TAG}"
+echo "Version tag: ${IMAGE_NAME}:${VERSION}-${TAG}"
+
+# Verify
+docker buildx imagetools inspect ${IMAGE_NAME}:${TAG}

docs/DockerDeployment.md

@@ -86,8 +86,6 @@ docker-compose up
 
 LightRAG provide an docker image can be deployment in offline environments where internet access is limited or unavailable. All you need to do is modify `docker-compose.yml`: change image tag from `latest` to `offline`.
 
-> The offline Docker image does not include `docling` because its large size made integration into LightRAG internally impractical. This approach has been deprecated, and `docling` will be provided as a standalone service moving forward.
-
 ## 📦 Build Multi-Architecture Docker Images
 
 ### Prerequisites