feat: Add standalone Dockerfile for external database deployments

- Create Dockerfile.standalone for MCP server without embedded FalkorDB
- Supports both Neo4j and FalkorDB via DATABASE_PROVIDER build arg
- Update docker-compose-neo4j.yml to use standalone Dockerfile
- Update docker-compose-falkordb.yml to use standalone Dockerfile
- Fixes issue where Neo4j compose was starting embedded FalkorDB
- Separate images: standalone-neo4j and standalone-falkordb

mcp_server/docker/Dockerfile.standalone

@@ -0,0 +1,82 @@
+# syntax=docker/dockerfile:1
+# Standalone Graphiti MCP Server Image
+# This image runs only the MCP server and connects to an external database (Neo4j or FalkorDB)
+
+FROM python:3.11-slim-bookworm
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    curl \
+    ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install uv for Python package management
+ADD https://astral.sh/uv/install.sh /uv-installer.sh
+RUN sh /uv-installer.sh && rm /uv-installer.sh
+
+# Add uv to PATH
+ENV PATH="/root/.local/bin:${PATH}"
+
+# Configure uv for optimal Docker usage
+ENV UV_COMPILE_BYTECODE=1 \
+    UV_LINK_MODE=copy \
+    UV_PYTHON_DOWNLOADS=never \
+    MCP_SERVER_HOST="0.0.0.0" \
+    PYTHONUNBUFFERED=1
+
+# Set up MCP server directory
+WORKDIR /app/mcp
+
+# Accept graphiti-core version as build argument
+ARG GRAPHITI_CORE_VERSION=0.22.0
+ARG DATABASE_PROVIDER=neo4j
+
+# Copy project files for dependency installation
+COPY pyproject.toml uv.lock ./
+
+# Remove the local path override for graphiti-core in Docker builds
+# Install with appropriate database extra
+RUN sed -i '/\[tool\.uv\.sources\]/,/graphiti-core/d' pyproject.toml && \
+    if [ "${DATABASE_PROVIDER}" = "neo4j" ]; then \
+      sed -i "s/graphiti-core\[falkordb\]>=0\.16\.0/graphiti-core[neo4j]==${GRAPHITI_CORE_VERSION}/" pyproject.toml; \
+    else \
+      sed -i "s/graphiti-core\[falkordb\]>=0\.16\.0/graphiti-core[falkordb]==${GRAPHITI_CORE_VERSION}/" pyproject.toml; \
+    fi
+
+# Install Python dependencies
+RUN --mount=type=cache,target=/root/.cache/uv \
+    uv sync --no-dev
+
+# Store graphiti-core version
+RUN echo "${GRAPHITI_CORE_VERSION}" > /app/mcp/.graphiti-core-version
+
+# Copy MCP server application code
+COPY main.py ./
+COPY src/ ./src/
+COPY config/ ./config/
+
+# Create log directory
+RUN mkdir -p /var/log/graphiti
+
+# Add Docker labels with version information
+ARG MCP_SERVER_VERSION=1.0.0
+ARG BUILD_DATE
+ARG VCS_REF
+LABEL org.opencontainers.image.title="Graphiti MCP Server (Standalone)" \
+      org.opencontainers.image.description="Standalone Graphiti MCP server for external Neo4j or FalkorDB" \
+      org.opencontainers.image.version="${MCP_SERVER_VERSION}" \
+      org.opencontainers.image.created="${BUILD_DATE}" \
+      org.opencontainers.image.revision="${VCS_REF}" \
+      org.opencontainers.image.vendor="Zep AI" \
+      org.opencontainers.image.source="https://github.com/zep-ai/graphiti" \
+      graphiti.core.version="${GRAPHITI_CORE_VERSION}"
+
+# Expose MCP server port
+EXPOSE 8000
+
+# Health check - verify MCP server is responding
+HEALTHCHECK --interval=10s --timeout=5s --start-period=15s --retries=3 \
+    CMD curl -f http://localhost:8000/ || exit 1
+
+# Run the MCP server
+CMD ["uv", "run", "main.py"]

mcp_server/docker/docker-compose-falkordb.yml

@@ -16,10 +16,12 @@ services:
       start_period: 10s
 
   graphiti-mcp:
-    image: zepai/knowledge-graph-mcp:latest
+    image: zepai/knowledge-graph-mcp:standalone-falkordb
     build:
       context: ..
-      dockerfile: docker/Dockerfile
+      dockerfile: docker/Dockerfile.standalone
+      args:
+        DATABASE_PROVIDER: falkordb
     env_file:
       - path: ../.env
         required: false

mcp_server/docker/docker-compose-neo4j.yml

@@ -20,10 +20,12 @@ services:
       start_period: 30s
 
   graphiti-mcp:
-    image: zepai/knowledge-graph-mcp:latest
+    image: zepai/knowledge-graph-mcp:standalone-neo4j
     build:
       context: ..
-      dockerfile: docker/Dockerfile
+      dockerfile: docker/Dockerfile.standalone
+      args:
+        DATABASE_PROVIDER: neo4j
     env_file:
       - path: ../.env
         required: false