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feat: add unified development environment with nginx proxy

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Add a root-level Makefile to manage frontend, backend, and nginx services:
- `make check` validates required dependencies (Node.js 22+, pnpm, uv, nginx)
- `make install` installs all project dependencies
- `make dev` starts all services with unified port 2026
- `make stop` and `make clean` for cleanup

Update nginx configuration:
- Change port from 8000 to 2026
- Add frontend upstream and routing (port 3000)
- Add /api/langgraph/* routing with path rewriting to LangGraph server
- Keep other /api/* routes to Gateway API
- Route non-API requests to frontend

Update frontend configuration:
- Use relative URLs through nginx proxy by default
- Support environment variables for direct backend access
- Construct full URL for LangGraph SDK compatibility

Clean up backend Makefile by removing nginx and serve targets.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
hetao
2026-01-22 11:57:47 +08:00
parent c00f780501
commit 31bf49917c
8 changed files with 376 additions and 69 deletions
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1
.gitignore vendored
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@@ -28,3 +28,4 @@ coverage/
.deer-flow/
.claude/
skills/custom/*
logs/

179
Makefile Normal file
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@@ -0,0 +1,179 @@
# DeerFlow - Unified Development Environment
.PHONY: help check install dev stop clean
help:
@echo "DeerFlow Development Commands:"
@echo " make check - Check if all required tools are installed"
@echo " make install - Install all dependencies (frontend + backend)"
@echo " make dev - Start all services (frontend + backend + nginx on localhost:2026)"
@echo " make stop - Stop all running services"
@echo " make clean - Clean up processes and temporary files"
# Check required tools
check:
@echo "=========================================="
@echo " Checking Required Dependencies"
@echo "=========================================="
@echo ""
@FAILED=0; \
echo "Checking Node.js..."; \
if command -v node >/dev/null 2>&1; then \
NODE_VERSION=$$(node -v | sed 's/v//'); \
NODE_MAJOR=$$(echo $$NODE_VERSION | cut -d. -f1); \
if [ $$NODE_MAJOR -ge 22 ]; then \
echo " ✓ Node.js $$NODE_VERSION (>= 22 required)"; \
else \
echo " ✗ Node.js $$NODE_VERSION found, but version 22+ is required"; \
echo " Install from: https://nodejs.org/"; \
FAILED=1; \
fi; \
else \
echo " ✗ Node.js not found (version 22+ required)"; \
echo " Install from: https://nodejs.org/"; \
FAILED=1; \
fi; \
echo ""; \
echo "Checking pnpm..."; \
if command -v pnpm >/dev/null 2>&1; then \
PNPM_VERSION=$$(pnpm -v); \
echo " ✓ pnpm $$PNPM_VERSION"; \
else \
echo " ✗ pnpm not found"; \
echo " Install: npm install -g pnpm"; \
echo " Or visit: https://pnpm.io/installation"; \
FAILED=1; \
fi; \
echo ""; \
echo "Checking uv..."; \
if command -v uv >/dev/null 2>&1; then \
UV_VERSION=$$(uv --version | awk '{print $$2}'); \
echo " ✓ uv $$UV_VERSION"; \
else \
echo " ✗ uv not found"; \
echo " Install: curl -LsSf https://astral.sh/uv/install.sh | sh"; \
echo " Or visit: https://docs.astral.sh/uv/getting-started/installation/"; \
FAILED=1; \
fi; \
echo ""; \
echo "Checking nginx..."; \
if command -v nginx >/dev/null 2>&1; then \
NGINX_VERSION=$$(nginx -v 2>&1 | awk -F'/' '{print $$2}'); \
echo " ✓ nginx $$NGINX_VERSION"; \
else \
echo " ✗ nginx not found"; \
echo " macOS: brew install nginx"; \
echo " Ubuntu: sudo apt install nginx"; \
echo " Or visit: https://nginx.org/en/download.html"; \
FAILED=1; \
fi; \
echo ""; \
if [ $$FAILED -eq 0 ]; then \
echo "=========================================="; \
echo " ✓ All dependencies are installed!"; \
echo "=========================================="; \
echo ""; \
echo "You can now run:"; \
echo " make install - Install project dependencies"; \
echo " make dev - Start development server"; \
else \
echo "=========================================="; \
echo " ✗ Some dependencies are missing"; \
echo "=========================================="; \
echo ""; \
echo "Please install the missing tools and run 'make check' again."; \
exit 1; \
fi
# Install all dependencies
install:
@echo "Installing backend dependencies..."
@cd backend && uv sync
@echo "Installing frontend dependencies..."
@cd frontend && pnpm install
@echo "✓ All dependencies installed"
# Start all services
dev:
@echo "Stopping existing services if any..."
@-pkill -f "langgraph dev" 2>/dev/null || true
@-pkill -f "uvicorn src.gateway.app:app" 2>/dev/null || true
@-pkill -f "next dev" 2>/dev/null || true
@-nginx -c $(PWD)/nginx.conf -p $(PWD) -s quit 2>/dev/null || true
@sleep 1
@-pkill -9 nginx 2>/dev/null || true
@sleep 1
@echo ""
@echo "=========================================="
@echo " Starting DeerFlow Development Server"
@echo "=========================================="
@echo ""
@echo "Services starting up..."
@echo " → Backend: LangGraph + Gateway"
@echo " → Frontend: Next.js"
@echo " → Nginx: Reverse Proxy"
@echo ""
@cleanup() { \
echo ""; \
echo "Shutting down services..."; \
pkill -f "langgraph dev" 2>/dev/null || true; \
pkill -f "uvicorn src.gateway.app:app" 2>/dev/null || true; \
pkill -f "next dev" 2>/dev/null || true; \
nginx -c $(PWD)/nginx.conf -p $(PWD) -s quit 2>/dev/null || true; \
sleep 1; \
pkill -9 nginx 2>/dev/null || true; \
echo "✓ All services stopped"; \
exit 0; \
}; \
trap cleanup INT TERM; \
echo "Starting LangGraph server..."; \
cd backend && uv run langgraph dev --no-browser --allow-blocking --no-reload > ../logs/langgraph.log 2>&1 & \
sleep 3; \
echo "✓ LangGraph server started on localhost:2024"; \
echo "Starting Gateway API..."; \
cd backend && uv run uvicorn src.gateway.app:app --host 0.0.0.0 --port 8001 > ../logs/gateway.log 2>&1 & \
sleep 2; \
echo "✓ Gateway API started on localhost:8001"; \
echo "Starting Frontend..."; \
cd frontend && pnpm run dev > ../logs/frontend.log 2>&1 & \
sleep 3; \
echo "✓ Frontend started on localhost:3000"; \
echo "Starting Nginx reverse proxy..."; \
mkdir -p logs && nginx -g 'daemon off;' -c $(PWD)/nginx.conf -p $(PWD) > logs/nginx.log 2>&1 & \
sleep 2; \
echo "✓ Nginx started on localhost:2026"; \
echo ""; \
echo "=========================================="; \
echo " DeerFlow is ready!"; \
echo "=========================================="; \
echo ""; \
echo " 🌐 Application: http://localhost:2026"; \
echo " 📡 API Gateway: http://localhost:2026/api/*"; \
echo " 🤖 LangGraph: http://localhost:2026/api/langgraph/*"; \
echo ""; \
echo " 📋 Logs:"; \
echo " - LangGraph: logs/langgraph.log"; \
echo " - Gateway: logs/gateway.log"; \
echo " - Frontend: logs/frontend.log"; \
echo " - Nginx: logs/nginx.log"; \
echo ""; \
echo "Press Ctrl+C to stop all services"; \
echo ""; \
wait
# Stop all services
stop:
@echo "Stopping all services..."
@-pkill -f "langgraph dev" 2>/dev/null || true
@-pkill -f "uvicorn src.gateway.app:app" 2>/dev/null || true
@-pkill -f "next dev" 2>/dev/null || true
@-nginx -c $(PWD)/nginx.conf -p $(PWD) -s quit 2>/dev/null || true
@sleep 1
@-pkill -9 nginx 2>/dev/null || true
@echo "✓ All services stopped"
# Clean up
clean: stop
@echo "Cleaning up..."
@-rm -rf logs/*.log 2>/dev/null || true
@echo "✓ Cleanup complete"

64
README.md
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@@ -6,7 +6,17 @@ A LangGraph-based AI agent backend with sandbox execution capabilities.
## Quick Start
1. **Configure the application**:
1. **Check system requirements**:
```bash
make check
```
This will verify that you have all required tools installed:
- Node.js 22+
- pnpm
- uv (Python package manager)
- nginx
2. **Configure the application**:
```bash
# Copy example configuration
cp config.example.yaml config.yaml
@@ -15,49 +25,58 @@ A LangGraph-based AI agent backend with sandbox execution capabilities.
export OPENAI_API_KEY="your-key-here"
# or edit config.yaml directly
# Optional: Enable MCP servers for additional tools
cp mcp_config.example.json mcp_config.json
# Edit mcp_config.json to enable desired servers
# Optional: Enable MCP servers and skills
cp extensions_config.example.json extensions_config.json
# Edit extensions_config.json to enable desired MCP servers and skills
```
2. **Install dependencies**:
3. **Install dependencies**:
```bash
cd backend
make install
```
3. **Run development server**:
4. **Run development server** (starts frontend, backend, and nginx):
```bash
make dev
```
### Production Deployment
5. **Access the application**:
- Web Interface: http://localhost:2026
- All API requests are automatically proxied through nginx
For production environments, use nginx as a reverse proxy to route traffic between the gateway and LangGraph services:
### Manual Deployment
If you need to start services individually:
1. **Start backend services**:
```bash
# Terminal 1: Start Gateway API (port 8001)
# Terminal 1: Start LangGraph Server (port 2024)
cd backend
python -m src.gateway.app
make dev
# Terminal 2: Start LangGraph Server (port 2024)
# Terminal 2: Start Gateway API (port 8001)
cd backend
langgraph up
make gateway
# Terminal 3: Start Frontend (port 3000)
cd frontend
pnpm dev
```
2. **Start nginx**:
```bash
nginx -c $(pwd)/nginx.conf
make nginx
# or directly: nginx -c $(pwd)/nginx.conf -g 'daemon off;'
```
3. **Access the application**:
- Main API: http://localhost:8000
- Web Interface: http://localhost:2026
The nginx configuration provides:
- Unified entry point on port 8000
- Routes `/api/models`, `/api/threads/*/artifacts`, and `/health` to Gateway (8001)
- Routes all other requests to LangGraph (2024)
- Unified entry point on port 2026
- Routes `/api/langgraph/*` to LangGraph Server (2024)
- Routes other `/api/*` endpoints to Gateway API (8001)
- Routes non-API requests to Frontend (3000)
- Centralized CORS handling
- SSE/streaming support for real-time agent responses
- Optimized timeouts for long-running operations
@@ -82,11 +101,12 @@ deer-flow/
### Architecture
```
Client
Browser
↓
Nginx (port 8000) ← Unified entry point
├→ Gateway API (port 8001) ← /api/models, /api/threads/*/artifacts, /health
└→ LangGraph Server (port 2024) ← All other requests (agent interactions)
Nginx (port 2026) ← Unified entry point
├→ Frontend (port 3000) ← / (non-API requests)
├→ Gateway API (port 8001) ← /api/models, /api/mcp, /api/skills, /api/threads/*/artifacts
└→ LangGraph Server (port 2024) ← /api/langgraph/* (agent interactions)
```
## Documentation

104
backend/CLAUDE.md
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@@ -4,17 +4,65 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
## Project Overview
DeerFlow is a LangGraph-based AI agent backend that provides a "super agent" with sandbox execution capabilities. The agent can execute code, browse the web, and manage files in isolated sandbox environments.
DeerFlow is a LangGraph-based AI agent system with a full-stack architecture. The backend provides a "super agent" with sandbox execution capabilities that can execute code, browse the web, and manage files in isolated environments.
**Architecture**:
- **LangGraph Server** (port 2024): Agent runtime and workflow execution
- **Gateway API** (port 8001): REST API for models, MCP, skills, and artifacts
- **Frontend** (port 3000): Next.js web interface
- **Nginx** (port 2026): Unified reverse proxy entry point
**Project Structure**:
```
deer-flow/
├── Makefile # Root commands (check, install, dev, stop)
├── nginx.conf # Nginx reverse proxy configuration
├── config.yaml # Main application configuration
├── extensions_config.json # MCP servers and skills configuration
├── backend/ # Backend application (this directory)
│ ├── Makefile # Backend-only commands (dev, gateway, lint)
│ ├── src/
│ │ ├── agents/ # LangGraph agents and workflows
│ │ ├── gateway/ # FastAPI Gateway API
│ │ ├── sandbox/ # Sandbox execution system
│ │ ├── tools/ # Agent tools
│ │ ├── mcp/ # MCP integration
│ │ └── skills/ # Skills loading and management
│ └── langgraph.json # LangGraph server configuration
├── frontend/ # Next.js frontend application
└── skills/ # Agent skills directory
├── public/ # Public skills (committed)
└── custom/ # Custom skills (gitignored)
```
## Commands
**Root directory** (for full application):
```bash
# Install dependencies
# Check system requirements
make check
# Install all dependencies (frontend + backend)
make install
# Run development server (LangGraph Studio)
# Start all services (LangGraph + Gateway + Frontend + Nginx)
make dev
# Stop all services
make stop
```
**Backend directory** (for backend development only):
```bash
# Install backend dependencies
make install
# Run LangGraph server only (port 2024)
make dev
# Run Gateway API only (port 8001)
make gateway
# Lint
make lint
@@ -45,6 +93,16 @@ Config values starting with `$` are resolved as environment variables (e.g., `$O
### Core Components
**Gateway API** (`src/gateway/`)
- FastAPI application that provides REST endpoints for frontend integration
- Endpoints:
- `/api/models` - List available LLM models from configuration
- `/api/mcp` - Manage MCP server configurations (GET, POST)
- `/api/skills` - Manage skill configurations (GET, POST)
- `/api/threads/{thread_id}/artifacts/*` - Serve agent-generated artifacts (files, images, etc.)
- Works alongside LangGraph server, handling non-agent HTTP operations
- Proxied through nginx under `/api/*` routes (except `/api/langgraph/*`)
**Agent Graph** (`src/agents/`)
- `lead_agent` is the main entry point registered in `langgraph.json`
- Uses `ThreadState` which extends `AgentState` with sandbox state
@@ -147,6 +205,46 @@ Structure:
Both MCP servers and skills can be modified at runtime via API endpoints.
## Development Workflow
### Running the Full Application
From the **project root** directory:
```bash
make dev
```
This starts all services and makes the application available at `http://localhost:2026`.
**Nginx routing**:
- `/api/langgraph/*` → LangGraph Server (2024) - Agent interactions, threads, streaming
- `/api/*` (other) → Gateway API (8001) - Models, MCP, skills, artifacts
- `/` (non-API) → Frontend (3000) - Web interface
### Running Backend Services Separately
For backend-only development, from the **backend** directory:
```bash
# Terminal 1: LangGraph server
make dev
# Terminal 2: Gateway API
make gateway
```
Direct access (without nginx):
- LangGraph: `http://localhost:2024`
- Gateway: `http://localhost:8001`
### Frontend Configuration
The frontend uses environment variables to connect to backend services:
- `NEXT_PUBLIC_LANGGRAPH_BASE_URL` - Defaults to `/api/langgraph` (through nginx)
- `NEXT_PUBLIC_BACKEND_BASE_URL` - Defaults to empty string (through nginx)
When using `make dev` from root, the frontend automatically connects through nginx.
## Code Style
- Uses `ruff` for linting and formatting

27
backend/Makefile
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@@ -7,33 +7,6 @@ dev:
gateway:
uv run uvicorn src.gateway.app:app --host 0.0.0.0 --port 8001
nginx:
@echo "Stopping existing nginx if any..."
@-nginx -c $(PWD)/../nginx.conf -p $(PWD)/.. -s quit 2>/dev/null || true
@sleep 1
@-pkill -9 nginx 2>/dev/null || true
@sleep 1
@echo "Starting nginx..."
@cleanup() { kill 0 2>/dev/null; exit 0; }; \
trap cleanup EXIT INT TERM; \
nginx -g 'daemon off;' -c $(PWD)/../nginx.conf -p $(PWD)/..
serve:
@echo "Stopping existing services if any..."
@-pkill -f "langgraph dev" 2>/dev/null || true
@-pkill -f "uvicorn src.gateway.app:app" 2>/dev/null || true
@-nginx -c $(PWD)/../nginx.conf -p $(PWD)/.. -s quit 2>/dev/null || true
@sleep 1
@-pkill -9 nginx 2>/dev/null || true
@sleep 1
@echo "Starting services..."
@cleanup() { kill 0 2>/dev/null; sleep 0.5; kill -9 0 2>/dev/null; exit 0; }; \
trap cleanup INT TERM; \
uv run langgraph dev --no-browser --allow-blocking --no-reload & \
sleep 3 && uv run uvicorn src.gateway.app:app --host 0.0.0.0 --port 8001 & \
sleep 1 && nginx -g 'daemon off;' -c $(PWD)/../nginx.conf -p $(PWD)/.. & \
wait
lint:
uvx ruff check .

7
frontend/.env.example
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@@ -9,8 +9,11 @@
# When adding additional environment variables, the schema in "/src/env.js"
# should be updated accordingly.
# The base URL of DeerFlow's backend service
NEXT_PUBLIC_BACKEND_BASE_URL="http://localhost:8000"
# Backend API URLs (optional)
# Leave these commented out to use the default nginx proxy (recommended for `make dev`)
# Only set these if you need to connect to backend services directly
# NEXT_PUBLIC_BACKEND_BASE_URL="http://localhost:8001"
# NEXT_PUBLIC_LANGGRAPH_BASE_URL="http://localhost:2024"
# Better Auth
## Better Auth - Google OAuth

11
frontend/src/core/config/index.ts
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@@ -4,7 +4,9 @@ export function getBackendBaseURL() {
if (env.NEXT_PUBLIC_BACKEND_BASE_URL) {
return env.NEXT_PUBLIC_BACKEND_BASE_URL;
} else {
return "http://localhost:8000";
// Use empty string for same-origin requests through nginx
// Paths like /api/models will be handled by nginx proxy
return "";
}
}
@@ -12,6 +14,11 @@ export function getLangGraphBaseURL() {
if (env.NEXT_PUBLIC_LANGGRAPH_BASE_URL) {
return env.NEXT_PUBLIC_LANGGRAPH_BASE_URL;
} else {
return getBackendBaseURL();
// LangGraph SDK requires a full URL, construct it from current origin
if (typeof window !== "undefined") {
return `${window.location.origin}/api/langgraph`;
}
// Fallback for SSR
return "http://localhost:2026/api/langgraph";
}
}

52
nginx.conf
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@@ -23,8 +23,12 @@ http {
server localhost:2024;
}
upstream frontend {
server localhost:3000;
}
server {
listen 8000;
listen 2026;
server_name _;
# Hide CORS headers from upstream to prevent duplicates
@@ -43,6 +47,34 @@ http {
return 204;
}
# LangGraph API routes
# Rewrites /api/langgraph/* to /* before proxying
location /api/langgraph/ {
rewrite ^/api/langgraph/(.*) /$1 break;
proxy_pass http://langgraph;
proxy_http_version 1.1;
# Headers
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header Connection '';
# SSE/Streaming support
proxy_buffering off;
proxy_cache off;
proxy_set_header X-Accel-Buffering no;
# Timeouts for long-running requests
proxy_connect_timeout 600s;
proxy_send_timeout 600s;
proxy_read_timeout 600s;
# Chunked transfer encoding
chunked_transfer_encoding on;
}
# Custom API: Models endpoint
location /api/models {
proxy_pass http://gateway;
@@ -123,9 +155,9 @@ http {
proxy_set_header X-Forwarded-Proto $scheme;
}
# All other requests go to LangGraph
# All other requests go to frontend
location / {
proxy_pass http://langgraph;
proxy_pass http://frontend;
proxy_http_version 1.1;
# Headers
@@ -133,20 +165,14 @@ http {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header Connection '';
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_cache_bypass $http_upgrade;
# SSE/Streaming support
proxy_buffering off;
proxy_cache off;
proxy_set_header X-Accel-Buffering no;
# Timeouts for long-running requests
# Timeouts
proxy_connect_timeout 600s;
proxy_send_timeout 600s;
proxy_read_timeout 600s;
# Chunked transfer encoding
chunked_transfer_encoding on;
}
}
}