update readme

README.md

@@ -2,6 +2,10 @@
 
 这是一个基于FastAPI的聊天API服务，使用OpenAI格式的请求来调用pipeline.invoke方法进行聊天。
 
+## Docker Installation
+
+For production deployment using Docker, see the [Installation Guide](README_INSTALL.md).
+
 ## 安装依赖
 
 ```bash
@@ -140,15 +144,35 @@ npm install
 
 ### Start the `front_apis` server
 
-The frontend talks to the `front_apis` FastAPI service, which by default listens on `http://127.0.0.1:8001`.
+The frontend talks to the `front_apis` FastAPI service, which by default listens on `http://127.0.0.1:8500`.
 
 From the project root:
 
 ```bash
-uvicorn fastapi_server.front_apis:app --reload --host 0.0.0.0 --port 8001
+uvicorn fastapi_server.front_apis:app --reload --host 0.0.0.0 --port 8500
 ```
 
-You can change the URL by setting `VITE_FRONT_API_BASE_URL` in `frontend/.env` (defaults to `http://127.0.0.1:8001`).
+Or run directly:
+```bash
+python fastapi_server/front_apis.py
+```
+
+### Backend run modes
+
+Run whichever backend mode you need from the project root:
+
+```bash
+# admin/control plane only (/v1/... frontend APIs)
+uvicorn fastapi_server.front_apis:app --reload --host 0.0.0.0 --port 8500
+
+# DashScope chat runtime only (/apps/... and /v1/apps/... APIs)
+uvicorn fastapi_server.server_dashscope:app --reload --host 0.0.0.0 --port 8588
+
+# combined mode: one process serves both front_apis + DashScope endpoints
+uvicorn fastapi_server.combined:app --reload --host 0.0.0.0 --port 8500
+```
+
+You can change the URL by setting `VITE_FRONT_API_BASE_URL` in `frontend/.env` (defaults to `http://127.0.0.1:8500`).
 
 ### Start the development server
 

README_INSTALL.md

@@ -0,0 +1,267 @@
+# Installation Guide
+
+This guide explains how to install and run the LangChain Agent application using Docker.
+
+## Prerequisites
+
+- Docker (version 20.10 or later)
+- Docker Compose (version 2.0 or later, or use `docker compose` command)
+
+## Quick Start
+
+1. **Run the installation script:**
+   ```bash
+   ./scripts/shell_scripts/install.sh
+   ```
+
+   This script will:
+   - Check for required tools (Docker, docker-compose)
+   - Create a `.env` file with default configuration
+   - Build Docker images (or use pre-loaded images)
+   - Start all services (PostgreSQL, Backend API, Nginx)
+
+2. **Access the application:**
+   - Frontend: http://localhost (or http://localhost:80)
+   - Backend API: http://localhost:8500
+   - Database: localhost:5432
+
+## Installation for China / Offline Use
+
+If Docker Hub is slow or inaccessible in your region:
+
+### Option 1: Use Chinese Docker Mirrors
+
+Configure Docker to use Chinese registry mirrors:
+
+```bash
+sudo tee /etc/docker/daemon.json <<EOF
+{
+  "registry-mirrors": [
+    "https://registry.docker-cn.com",
+    "https://mirror.ccsogou.com",
+    "https://docker.1ms.run"
+  ]
+}
+EOF
+sudo systemctl daemon-reload
+sudo systemctl restart docker
+```
+
+Then run `./scripts/shell_scripts/install.sh`
+
+### configuring '.env' and 'frontend/.env'
+```bash
+ALI_API_KEY="API_KEY_FOR_ALI_QWEN"
+ALI_BASE_URL="https://dashscope.aliyuncs.com/compatible-mode/v1"
+POSTGRES_ROOT_PASSWORD="ROOT_PASSOWRD_FOR_DB_IN_CONN_STR - required for installation"
+POSTGRES_PASSWORD="USER_PASSWORD_FOR_DB_CONN_STR - required for installation" - need to be same in POSTGRES_PASSWORD
+CONN_STR="CONNECTION_STRING_TO_DATABASE" # DOCKER PASSWORD
+FAST_AUTH_KEYS="API_KEY_FOR_OTHER_APPLICATIONS_TO_USE_BUILT_PIPELINE"
+DAYTONA_API_KEY="DAYTONA_CONFIG - NOT REQUIRED"
+```
+
+### Option 2: Pre-load Docker Images Offline
+
+1. On a machine with good Docker Hub access, run:
+   ```bash
+   ./scripts/shell_scripts/download_images.sh
+   ```
+   This creates `images.tar` with all required images.
+
+2. Transfer `images.tar` to your target machine.
+
+3. Load the images:
+   ```bash
+   docker load < images.tar
+   ```
+
+4. Run the install script:
+   ```bash
+   ./scripts/shell_scripts/install.sh
+   ```
+
+## Manual Installation
+
+If you prefer to set up manually:
+
+1. **Create environment file:**
+   ```bash
+   cp .env.example .env  # Edit as needed
+   ```
+
+2. **Build and start services:**
+   ```bash
+   cd docker
+   docker compose -f docker-compose.prod.yml up -d --build
+   ```
+
+3. **Check service status:**
+   ```bash
+   cd docker
+   docker compose -f docker-compose.prod.yml ps
+   ```
+
+## Configuration
+
+Edit the `.env` file to customize:
+
+- `POSTGRES_DB`: Database name (default: `ai_conversations`)
+- `POSTGRES_USER`: Database user (default: `myapp_user`)
+- `POSTGRES_PASSWORD`: Database password (default: `secure_password_123`)
+- `POSTGRES_PORT`: PostgreSQL port (default: `5432`)
+- `BACKEND_PORT`: Backend API port (default: `8500`)
+- `FRONTEND_PORT`: Frontend web server port (default: `80`)
+
+## Database Initialization
+
+The database is automatically initialized when the PostgreSQL container starts for the first time. The following SQL scripts are executed in order:
+
+1. `scripts/init_database/00_init_user.sh` - Creates database user and database
+2. `scripts/init_database/create_conv_store.sql` - Creates conversation storage tables
+3. `scripts/init_database/create_prompt_config.sql` - Creates prompt configuration tables
+
+## Service Management
+
+All commands run from the `docker/` directory:
+
+### View logs:
+```bash
+cd docker
+docker compose -f docker-compose.prod.yml logs -f
+
+# Specific service
+docker compose -f docker-compose.prod.yml logs -f backend
+docker compose -f docker-compose.prod.yml logs -f postgres
+docker compose -f docker-compose.prod.yml logs -f nginx
+```
+
+### Stop services:
+```bash
+cd docker
+docker compose -f docker-compose.prod.yml down
+```
+
+### Restart services:
+```bash
+cd docker
+docker compose -f docker-compose.prod.yml restart
+```
+
+### Rebuild after code changes:
+```bash
+cd docker
+docker compose -f docker-compose.prod.yml up -d --build
+```
+
+### Reset database (delete all data):
+```bash
+cd docker
+docker compose -f docker-compose.prod.yml down -v
+docker compose -f docker-compose.prod.yml up -d
+```
+
+## Architecture
+
+The application consists of three main services:
+
+1. **PostgreSQL** (`postgres`): Database server
+   - Stores conversations and prompt configurations
+   - Automatically initializes schema on first run
+
+2. **Backend** (`backend`): FastAPI application
+   - Serves API endpoints at port 8500
+   - Handles agent management and chat endpoints
+   - Connects to PostgreSQL database
+
+3. **Nginx** (`nginx`): Web server
+   - Serves the React frontend (port 80)
+   - Proxies API requests to the backend
+   - Handles static file serving
+
+## Project Structure
+
+```
+langchain-agent/
+├── docker/
+│   ├── docker-compose.prod.yml   # Production compose file
+│   └── Dockerfile.prod           # Backend Docker image
+├── scripts/
+│   ├── shell_scripts/
+│   │   ├── install.sh            # Main installation script
+│   │   └── download_images.sh    # For offline image download
+│   └── init_database/            # Database initialization scripts
+├── frontend/                     # React frontend
+├── configs/                      # Pipeline configurations
+├── nginx.conf                    # Nginx configuration
+└── .env                         # Environment variables
+```
+
+## Troubleshooting
+
+### Database connection issues
+
+If the backend can't connect to the database:
+
+1. Check that PostgreSQL is running:
+   ```bash
+   docker compose -f docker-compose.prod.yml ps postgres
+   ```
+
+2. Verify the connection string in `.env` matches the database configuration
+
+3. Check backend logs:
+   ```bash
+   docker compose -f docker-compose.prod.yml logs backend
+   ```
+
+### Frontend not loading / NetworkError
+
+1. Check nginx logs:
+   ```bash
+   docker compose -f docker-compose.prod.yml logs nginx
+   ```
+
+2. Ensure frontend is built with correct API base URL. The `frontend/.env` file should contain:
+   ```
+   VITE_FRONT_API_BASE_URL=/
+   ```
+   Then rebuild: `docker compose -f docker-compose.prod.yml build backend`
+
+### Port conflicts
+
+If ports are already in use, update the port mappings in `.env`:
+
+```bash
+# Example: use port 5433 for PostgreSQL
+POSTGRES_PORT=5433
+```
+
+## Development
+
+For development, you may want to run services separately:
+
+1. Start only PostgreSQL:
+   ```bash
+   cd docker
+   docker compose -f docker-compose.prod.yml up -d postgres
+   ```
+
+2. Run backend locally:
+   ```bash
+   export CONN_STR="postgresql://myapp_user:secure_password_123@localhost:5432/ai_conversations"
+   python -m uvicorn lang_agent.fastapi_server.combined:app --reload --host 0.0.0.0 --port 8500
+   ```
+
+3. Run frontend locally:
+   ```bash
+   cd frontend
+   npm install
+   npm run dev
+   ```
+
+Note: For local frontend development, create a `.env` file in `frontend/` with:
+   ```
+   VITE_FRONT_API_BASE_URL=http://localhost:8500
+   ```
+
+

configs/prompts/deepagent.txt

@@ -1,3 +1,7 @@
-you are a helpful bot enhanced with skills.
+You are a helpful bot enhanced with skills.
+
 To use a skill, read its SKILL.md file using the read_file tool. Skills are NOT tools — they are instructions for using existing tools.
-Skills with available="false" need dependencies installed first - you can try installing them with apt/brew. You can check if the environment the packages you need.
+
+When using a skill, assume required tools (e.g., npx, curl) are available and execute the commands directly. If a command fails because a tool is missing, install the missing dependency using apt/brew and retry.
+
+For shell commands (e.g., npx, curl), use the execute tool to run them.

docker/Dockerfile.prod

@@ -0,0 +1,85 @@
+# Multi-stage Dockerfile for production deployment
+# Stage 1: Build frontend
+FROM node:20-alpine AS frontend-builder
+
+WORKDIR /app/frontend
+
+# Copy frontend files
+COPY frontend/package*.json ./
+RUN npm ci
+
+COPY frontend/ ./
+RUN npm run build
+
+# Stage 2: Python backend
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    postgresql-client \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy Python dependencies
+COPY pyproject.toml ./
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -e .
+
+# Copy application code
+COPY lang_agent/ ./lang_agent/
+COPY configs/ ./configs/
+COPY scripts/ ./scripts/
+COPY assets/ ./assets/
+COPY static/ ./static/
+
+# Copy built frontend from stage 1
+COPY --from=frontend-builder /app/frontend/dist ./frontend/dist
+
+# Set environment variables
+ENV PYTHONPATH=/app
+ENV PYTHONUNBUFFERED=1
+
+# Expose port
+EXPOSE 8500
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
+    CMD curl -f http://localhost:8500/health || exit 1
+
+# Create entrypoint script to wait for DB
+# Uses Python to check database connection (more reliable than psql)
+RUN echo '#!/bin/bash\n\
+set -e\n\
+echo "Waiting for database to be ready..."\n\
+python3 << EOF\n\
+import sys\n\
+import time\n\
+import psycopg\n\
+\n\
+max_attempts = 30\n\
+conn_str = "${CONN_STR}"\n\
+\n\
+for i in range(max_attempts):\n\
+    try:\n\
+        with psycopg.connect(conn_str, connect_timeout=2) as conn:\n\
+            with conn.cursor() as cur:\n\
+                cur.execute("SELECT 1")\n\
+        print("Database is ready!")\n\
+        sys.exit(0)\n\
+    except Exception as e:\n\
+        if i == max_attempts - 1:\n\
+            print(f"Warning: Database not ready after {max_attempts * 2} seconds, continuing anyway...")\n\
+            print(f"Error: {e}")\n\
+            sys.exit(0)\n\
+        print(f"Database is unavailable - sleeping (attempt {i+1}/{max_attempts})")\n\
+        time.sleep(2)\n\
+EOF\n\
+exec "$@"' > /entrypoint.sh && chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]
+
+# Run the combined server
+CMD ["python", "-m", "uvicorn", "lang_agent.fastapi_server.combined:app", "--host", "0.0.0.0", "--port", "8500"]
+

docker/docker-compose.prod.yml

@@ -0,0 +1,84 @@
+version: '3.8'
+
+services:
+  # PostgreSQL database
+  postgres:
+    image: postgres:16-alpine
+    container_name: langchain-agent-db
+    networks:
+      - app-network
+    environment:
+      POSTGRES_DB: postgres
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: ${POSTGRES_ROOT_PASSWORD:-postgres_root_password}
+      # These are used by init scripts to create the app database
+      APP_DB_NAME: ${POSTGRES_DB:-ai_conversations}
+      APP_DB_USER: ${POSTGRES_USER:-myapp_user}
+      APP_DB_PASSWORD: ${POSTGRES_PASSWORD:-secure_password_123}
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ../scripts/init_database:/docker-entrypoint-initdb.d
+    ports:
+      - "${POSTGRES_PORT:-5432}:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    restart: unless-stopped
+
+  # Backend API server
+  backend:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.prod
+    container_name: langchain-agent-backend
+    environment:
+      - PYTHONPATH=/app
+      - PYTHONUNBUFFERED=1
+      - CONN_STR=postgresql://${POSTGRES_USER:-myapp_user}:${POSTGRES_PASSWORD:-secure_password_123}@postgres:5432/${POSTGRES_DB:-ai_conversations}
+      - POSTGRES_USER=${POSTGRES_USER:-myapp_user}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-secure_password_123}
+      - POSTGRES_DB=${POSTGRES_DB:-ai_conversations}
+    ports:
+      - "${BACKEND_PORT:-8500}:8500"
+    volumes:
+      - ../configs:/app/configs
+      - ../scripts:/app/scripts
+      - ../assets:/app/assets
+      - ../static:/app/static
+    networks:
+      - app-network
+    depends_on:
+      postgres:
+        condition: service_healthy
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8500/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+  # Nginx for serving frontend (optional - can also serve via FastAPI)
+  nginx:
+    image: nginx:alpine
+    container_name: langchain-agent-nginx
+    networks:
+      - app-network
+    ports:
+      - "${FRONTEND_PORT:-80}:80"
+    volumes:
+      - ../nginx.conf:/etc/nginx/nginx.conf:ro
+      - ../frontend/dist:/usr/share/nginx/html:ro
+    depends_on:
+      - backend
+    restart: unless-stopped
+
+volumes:
+  postgres_data:
+
+networks:
+  app-network:
+    driver: bridge
+

nginx.conf

@@ -0,0 +1,76 @@
+events {
+    worker_connections 1024;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    sendfile        on;
+    keepalive_timeout  65;
+
+    # Upstream backend
+    upstream backend {
+        server backend:8500;
+    }
+
+    server {
+        listen 80;
+        server_name localhost;
+
+        root /usr/share/nginx/html;
+        index index.html;
+
+        # Serve frontend static files
+        location / {
+            try_files $uri $uri/ /index.html;
+        }
+
+        # Proxy API requests to backend
+        location /v1/ {
+            proxy_pass http://backend;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection 'upgrade';
+            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_cache_bypass $http_upgrade;
+        }
+
+        # Proxy DashScope API requests
+        location /apps/ {
+            proxy_pass http://backend;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection 'upgrade';
+            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_cache_bypass $http_upgrade;
+        }
+
+        # Proxy v1/apps requests
+        location /v1/apps/ {
+            proxy_pass http://backend;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection 'upgrade';
+            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_cache_bypass $http_upgrade;
+        }
+
+        # Health check endpoint
+        location /health {
+            proxy_pass http://backend/health;
+            access_log off;
+        }
+    }
+}
+
+

pyproject.toml

@@ -24,7 +24,10 @@ dependencies = [
     "commentjson",
     "pandas",
     "asgiref",
-    "psycopg[binary]"
+    "psycopg[binary]",
+    "deepagents",
+    "daytona",
+    "langchain_daytona"
 ]
 
 [tool.setuptools.packages.find]

scripts/init_database/00_init_user.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+# Initialize database user and database
+# This script runs before SQL files in docker-entrypoint-initdb.d
+# It must be named with 00_ prefix to run first
+
+set -e
+
+APP_DB_NAME="${APP_DB_NAME:-ai_conversations}"
+APP_DB_USER="${APP_DB_USER:-myapp_user}"
+APP_DB_PASSWORD="${APP_DB_PASSWORD:-secure_password_123}"
+
+echo "Creating database user: $APP_DB_USER"
+# Create user
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+    DO \$\$
+    BEGIN
+        IF NOT EXISTS (SELECT FROM pg_catalog.pg_user WHERE usename = '$APP_DB_USER') THEN
+            CREATE USER $APP_DB_USER WITH PASSWORD '$APP_DB_PASSWORD';
+        END IF;
+    END
+    \$\$;
+    ALTER USER $APP_DB_USER CREATEDB;
+EOSQL
+
+echo "Creating database: $APP_DB_NAME"
+# Create database
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+    SELECT 'CREATE DATABASE $APP_DB_NAME'
+    WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = '$APP_DB_NAME')\gexec
+    GRANT ALL PRIVILEGES ON DATABASE $APP_DB_NAME TO $APP_DB_USER;
+EOSQL
+
+echo "Granting schema privileges"
+# Grant schema privileges
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$APP_DB_NAME" <<-EOSQL
+    GRANT ALL ON SCHEMA public TO $APP_DB_USER;
+EOSQL
+
+echo "Database initialization complete!"
+

scripts/init_database/01_run_sql_files.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+# Run SQL initialization files in the correct database context
+# This script runs after 00_init_user.sh creates the database
+
+set -e
+
+APP_DB_NAME="${APP_DB_NAME:-ai_conversations}"
+
+echo "Running SQL initialization files in database: $APP_DB_NAME"
+
+# Run create_conv_store.sql
+if [ -f /docker-entrypoint-initdb.d/create_conv_store.sql ]; then
+    echo "Executing create_conv_store.sql..."
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$APP_DB_NAME" -f /docker-entrypoint-initdb.d/create_conv_store.sql
+fi
+
+# Run create_prompt_config.sql
+if [ -f /docker-entrypoint-initdb.d/create_prompt_config.sql ]; then
+    echo "Executing create_prompt_config.sql..."
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$APP_DB_NAME" -f /docker-entrypoint-initdb.d/create_prompt_config.sql
+fi
+
+echo "SQL initialization files completed!"
+
+

scripts/init_database/create_conv_store.sql

@@ -1,4 +1,5 @@
 -- Create the messages table
+-- This script runs in the ai_conversations database context
 CREATE TABLE IF NOT EXISTS messages (
     id BIGSERIAL PRIMARY KEY,
     conversation_id TEXT NOT NULL,
@@ -13,4 +14,8 @@ CREATE TABLE IF NOT EXISTS messages (
 CREATE INDEX IF NOT EXISTS idx_messages_conversation ON messages (conversation_id, sequence_number);
 
 -- Index for fast lookup by pipeline_id
-CREATE INDEX IF NOT EXISTS idx_messages_pipeline ON messages (pipeline_id);
+CREATE INDEX IF NOT EXISTS idx_messages_pipeline ON messages (pipeline_id);
+
+-- Grant permissions to app user
+GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO myapp_user;
+GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO myapp_user;

scripts/init_database/create_prompt_config.sql

@@ -1,4 +1,5 @@
 -- A prompt_set groups a full collection of prompts together.
+-- This script runs in the ai_conversations database context
 -- Each pipeline can have many sets (versions, A/B variants, etc.);
 -- exactly one should be marked is_active per pipeline.
 CREATE TABLE IF NOT EXISTS prompt_sets (
@@ -41,6 +42,10 @@ CREATE TABLE IF NOT EXISTS prompt_templates (
 CREATE INDEX IF NOT EXISTS idx_prompt_templates_set_id
     ON prompt_templates(prompt_set_id);
 
+-- Grant permissions to app user
+GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO myapp_user;
+GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO myapp_user;
+
 -- Seed: initial prompt set for lang_agent/graphs/routing.py
 -- The pipeline_id can be used by RoutingConfig.pipeline_id to load these prompts.
 INSERT INTO prompt_sets (pipeline_id, graph_id, name, description, is_active, list)

scripts/init_database/init_all.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+# Database initialization script
+# This script runs all SQL initialization files in the correct order
+
+set -e
+
+DB_NAME="${POSTGRES_DB:-ai_conversations}"
+DB_USER="${POSTGRES_USER:-myapp_user}"
+DB_PASSWORD="${POSTGRES_PASSWORD:-secure_password_123}"
+DB_HOST="${POSTGRES_HOST:-localhost}"
+DB_PORT="${POSTGRES_PORT:-5432}"
+
+export PGPASSWORD="$DB_PASSWORD"
+
+echo "Initializing database: $DB_NAME on $DB_HOST:$DB_PORT"
+
+# Wait for PostgreSQL to be ready
+until psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d postgres -c '\q' 2>/dev/null; do
+  echo "Waiting for PostgreSQL to be ready..."
+  sleep 2
+done
+
+echo "PostgreSQL is ready!"
+
+# Create database if it doesn't exist
+psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d postgres <<EOF
+SELECT 'CREATE DATABASE $DB_NAME'
+WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = '$DB_NAME')\gexec
+EOF
+
+# Grant privileges
+psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d postgres <<EOF
+GRANT ALL PRIVILEGES ON DATABASE $DB_NAME TO $DB_USER;
+EOF
+
+# Run initialization scripts in order
+echo "Running database initialization scripts..."
+
+# 1. Create conversation store tables
+echo "Creating conversation store tables..."
+psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -f /docker-entrypoint-initdb.d/create_conv_store.sql
+
+# 2. Create prompt configuration tables
+echo "Creating prompt configuration tables..."
+psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -f /docker-entrypoint-initdb.d/create_prompt_config.sql
+
+echo "Database initialization complete!"
+
+

scripts/shell_scripts/create_config.sh

@@ -1,3 +1,8 @@
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(dirname "$(dirname "$SCRIPT_DIR")")"
+
+cd "$PROJECT_ROOT"
+
 source ~/.bashrc
 conda init
 conda activate lang

scripts/shell_scripts/download_images.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+# Script to download and package Docker images for offline use
+# Run this on a machine with good Docker Hub access, then transfer images.tar to China
+
+set -e
+
+echo "=== Docker Image Downloader for Offline Use ==="
+echo ""
+
+# Images needed
+IMAGES=(
+    "node:20-alpine"
+    "python:3.12-slim"
+    "postgres:16-alpine"
+    "nginx:alpine"
+)
+
+OUTPUT_FILE="images.tar"
+
+echo "Pulling Docker images..."
+for img in "${IMAGES[@]}"; do
+    echo "  Pulling $img..."
+    docker pull "$img"
+done
+
+echo ""
+echo "Saving to $OUTPUT_FILE..."
+docker save "${IMAGES[@]}" -o "$OUTPUT_FILE"
+
+echo ""
+echo "Done! File size:"
+ls -lh "$OUTPUT_FILE"
+
+echo ""
+echo "To transfer to China machine and load:"
+echo "  scp images.tar user@china-machine:/path/"
+echo "  docker load < images.tar"

scripts/shell_scripts/install.sh

@@ -0,0 +1,167 @@
+#!/bin/bash
+# Installation script for LangChain Agent
+# This script sets up and runs the entire application stack
+
+set -e
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Configuration
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(dirname "$(dirname "$SCRIPT_DIR")")"
+ENV_FILE="$PROJECT_ROOT/.env"
+
+echo -e "${GREEN}=== LangChain Agent Installation Script ===${NC}\n"
+
+# Check for required tools
+check_requirements() {
+    echo -e "${YELLOW}Checking requirements...${NC}"
+    
+    if ! command -v docker &> /dev/null; then
+        echo -e "${RED}Error: Docker is not installed. Please install Docker first.${NC}"
+        exit 1
+    fi
+    
+    if ! command -v docker-compose &> /dev/null && ! docker compose version &> /dev/null; then
+        echo -e "${RED}Error: docker-compose is not installed. Please install docker-compose first.${NC}"
+        exit 1
+    fi
+    
+    echo -e "${GREEN}✓ All requirements met${NC}\n"
+}
+
+# Create .env file if it doesn't exist
+create_env_file() {
+    if [ ! -f "$ENV_FILE" ]; then
+        echo -e "${YELLOW}Creating .env file...${NC}"
+        cat > "$ENV_FILE" <<EOF
+# Database Configuration
+POSTGRES_DB=ai_conversations
+POSTGRES_USER=myapp_user
+POSTGRES_PASSWORD=secure_password_123
+POSTGRES_PORT=5432
+
+# Backend Configuration
+BACKEND_PORT=8500
+
+# Frontend Configuration
+FRONTEND_PORT=80
+
+# Database Connection String (used by backend)
+CONN_STR=postgresql://myapp_user:secure_password_123@postgres:5432/ai_conversations
+EOF
+        echo -e "${GREEN}✓ Created .env file at $ENV_FILE${NC}"
+        echo -e "${YELLOW}  Please review and update the .env file with your preferred settings.${NC}\n"
+    else
+        echo -e "${GREEN}✓ .env file already exists${NC}\n"
+    fi
+}
+
+# Build Docker images
+build_images() {
+    echo -e "${YELLOW}Building Docker images...${NC}"
+    cd "$PROJECT_ROOT"
+    
+    # Check if docker-compose or docker compose
+    if docker compose version &> /dev/null; then
+        COMPOSE_CMD="docker compose"
+    else
+        COMPOSE_CMD="docker-compose"
+    fi
+    
+    $COMPOSE_CMD -f docker/docker-compose.prod.yml build
+    
+    echo -e "${GREEN}✓ Docker images built successfully${NC}\n"
+}
+
+# Initialize database
+init_database() {
+    echo -e "${YELLOW}Initializing database...${NC}"
+    
+    # Wait for PostgreSQL to be ready
+    echo "Waiting for PostgreSQL to start..."
+    sleep 5
+    
+    # The SQL files in scripts/init_database/ will be automatically executed
+    # by PostgreSQL's docker-entrypoint-initdb.d mechanism
+    # We just need to wait a bit for it to complete
+    
+    echo -e "${GREEN}✓ Database initialization will be handled automatically by PostgreSQL container${NC}\n"
+}
+
+# Start services
+start_services() {
+    echo -e "${YELLOW}Starting services...${NC}"
+    cd "$PROJECT_ROOT"
+    
+    # Check if docker-compose or docker compose
+    if docker compose version &> /dev/null; then
+        COMPOSE_CMD="docker compose"
+    else
+        COMPOSE_CMD="docker-compose"
+    fi
+    
+    $COMPOSE_CMD -f docker/docker-compose.prod.yml up -d
+    
+    echo -e "${GREEN}✓ Services started${NC}\n"
+}
+
+# Show status
+show_status() {
+    # Load environment variables from .env if it exists
+    if [ -f "$ENV_FILE" ]; then
+        set -a
+        source "$ENV_FILE"
+        set +a
+    fi
+    
+    echo -e "${GREEN}=== Installation Complete ===${NC}\n"
+    echo -e "Services are starting up. Please wait a moment for them to be ready.\n"
+    echo -e "Access points:"
+    echo -e "  - Frontend:     http://localhost:${FRONTEND_PORT:-80}"
+    echo -e "  - Backend API:  http://localhost:${BACKEND_PORT:-8500}"
+    echo -e "  - Database:     localhost:${POSTGRES_PORT:-5432}\n"
+    echo -e "To view logs:"
+    echo -e "  docker-compose -f docker/docker-compose.prod.yml logs -f\n"
+    echo -e "To stop services:"
+    echo -e "  docker-compose -f docker/docker-compose.prod.yml down\n"
+    echo -e "To restart services:"
+    echo -e "  docker-compose -f docker/docker-compose.prod.yml restart\n"
+}
+
+# Main execution
+main() {
+    check_requirements
+    create_env_file
+    build_images
+    start_services
+    init_database
+    show_status
+    
+    echo -e "${YELLOW}Waiting for services to be healthy...${NC}"
+    sleep 10
+    
+    # Load environment variables for health check
+    if [ -f "$ENV_FILE" ]; then
+        set -a
+        source "$ENV_FILE"
+        set +a
+    fi
+    
+    # Check service health
+    echo -e "\n${YELLOW}Checking service health...${NC}"
+    sleep 5  # Give services a bit more time
+    if curl -f http://localhost:${BACKEND_PORT:-8500}/health &> /dev/null; then
+        echo -e "${GREEN}✓ Backend is healthy${NC}"
+    else
+        echo -e "${YELLOW}⚠ Backend is still starting up. Check logs with: docker-compose -f docker/docker-compose.prod.yml logs backend${NC}"
+    fi
+}
+
+# Run main function
+main
+