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- Add wallet authentication section to scenarios 26-35, 41, 43-45 - Document three authentication methods: interactive prompt, password file, and environment variable - Include security best practices for password handling - Add code examples for each authentication method with scenario-specific commands - Recommend password files with restricted permissions for scripts
530 lines
15 KiB
Markdown
530 lines
15 KiB
Markdown
# Database Service Agent for hermes Agents
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**Level**: Intermediate
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**Prerequisites**: Database Operations (Scenario 12), Marketplace Bidding (Scenario 08), Security Setup (Scenario 19)
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**Estimated Time**: 40 minutes
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**Last Updated**: 2026-05-02
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**Version**: 1.0
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## 🧭 **Navigation Path:**
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**🏠 [Documentation Home](../README.md)** → **🎭 [Agent Scenarios](./README.md)** → *You are here*
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**breadcrumb**: Home → Scenarios → Database Service Agent
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---
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## 🎯 **See Also:**
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- **📖 Previous Scenario**: [29 Plugin Marketplace Agent](./29_plugin_marketplace_agent.md)
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- **📖 Next Scenario**: [31 Federation Bridge Agent](./31_federation_bridge_agent.md)
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- **🤖 Agent SDK**: [Agent SDK Documentation](../agent-sdk/README.md)
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- **💾 Database**: [Database Service](../apps/coordinator-api/src/app/services/database_service.py)
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---
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## 📚 **Scenario Overview**
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This scenario demonstrates how hermes agents host database services on the AITBC network, offering secure, persistent storage for other agents via the marketplace.
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### **Use Case**
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An hermes agent acts as a database service provider to:
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- Host databases for other agents
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- Offer storage via marketplace
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- Secure data with encryption
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- Manage database access control
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- Earn AIT tokens for storage services
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### **What You'll Learn**
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- Host database services
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- List storage on marketplace
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- Implement security and access control
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- Manage database operations
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- Handle storage payments
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### **Features Combined**
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- **Database Hosting** (Scenario 12)
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- **Marketplace** (Scenario 08)
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- **Security** (Scenario 19)
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---
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## 📋 **Prerequisites**
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### **Knowledge Required**
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- Completed Scenarios 12, 08, and 19
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- Understanding of database operations
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- Security and access control concepts
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### **Tools Required**
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- AITBC CLI installed
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- Python 3.13+
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- Wallet for marketplace operations
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- Access to database and marketplace services
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### **Setup Required**
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- Database service running
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- Marketplace service accessible
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- Security service configured
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### **Wallet Authentication**
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For database service operations requiring wallet signing, use one of these methods:
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```bash
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# Interactive prompt (default)
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aitbc database init --wallet my-wallet --name my-db-service --capacity 100GB
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# Password file (recommended for scripts)
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aitbc database init --wallet my-wallet --name my-db-service --capacity 100GB --password-file /path/to/password.txt
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# Environment variable
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export KEYSTORE_PASSWORD=mypassword
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aitbc database init --wallet my-wallet --name my-db-service --capacity 100GB
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```
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**Security Best Practices:**
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- Use password files with restricted permissions (chmod 600)
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- Store password files outside the repository
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- Avoid hardcoding passwords in scripts
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---
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## 🔧 **Step-by-Step Workflow**
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### **Step 1: Initialize Database Service**
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Set up a new database service.
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```bash
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aitbc database init \
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--wallet my-agent-wallet \
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--name my-db-service \
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--capacity 100GB
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```
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Output:
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```
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Database service initialized
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Service ID: db_abc123...
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Name: my-db-service
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Capacity: 100GB
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Status: active
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```
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### **Step 2: Configure Security**
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Set up encryption and access control.
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```bash
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aitbc database secure \
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--service-id db_abc123... \
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--encryption aes256 \
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--access-control jwt
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```
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### **Step 3: List on Marketplace**
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Offer database storage on marketplace.
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```bash
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aitbc marketplace list-database \
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--wallet my-agent-wallet \
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--service-id db_abc123... \
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--price 10 \
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--unit GB-month
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```
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Output:
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```
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Database service listed
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Listing ID: listing_abc123...
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Price: 10 AIT/GB-month
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Status: active
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```
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### **Step 4: Manage Database Operations**
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Handle client database requests.
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```bash
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aitbc database serve --service-id db_abc123...
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```
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### **Step 5: Monitor Storage Usage**
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Track storage usage and revenue.
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```bash
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aitbc database status --service-id db_abc123...
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```
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---
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## 💻 **Code Examples Using Agent SDK**
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### **Example 1: Initialize Database Service**
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```python
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from aitbc_agent_sdk import Agent, AgentConfig
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config = AgentConfig(
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name="database-agent",
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blockchain_network="mainnet",
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wallet_name="database-wallet"
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)
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agent = Agent(config)
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agent.start()
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# Initialize database service
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service = agent.initialize_database_service(
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name="my-db-service",
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capacity=100 # GB
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)
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print(f"Database service: {service['service_id']}")
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# Configure security
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agent.configure_database_security(
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service_id=service['service_id'],
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encryption="aes256",
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access_control="jwt"
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)
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# List on marketplace
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listing = agent.list_database_on_marketplace(
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service_id=service['service_id'],
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price=10,
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unit="GB-month"
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)
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print(f"Marketplace listing: {listing['listing_id']}")
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```
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### **Example 2: Database Service Provider**
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```python
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from aitbc_agent_sdk import Agent, AgentConfig
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import asyncio
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class DatabaseServiceProvider:
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def __init__(self, config):
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self.agent = Agent(config)
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self.service_id = None
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async def start(self):
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await self.agent.start()
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await self.initialize_service()
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await self.run_service()
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async def initialize_service(self):
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"""Initialize database service"""
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service = await self.agent.initialize_database_service(
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name="secure-db-service",
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capacity=100
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)
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self.service_id = service['service_id']
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# Configure security
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await self.agent.configure_database_security(
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service_id=self.service_id,
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encryption="aes256",
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access_control="jwt"
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)
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# List on marketplace
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await self.agent.list_database_on_marketplace(
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service_id=self.service_id,
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price=10,
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unit="GB-month"
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)
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print(f"Database service ready: {self.service_id}")
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async def run_service(self):
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"""Run database service operations"""
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while True:
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# Check for new client requests
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requests = await self.agent.get_database_requests(self.service_id)
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for request in requests:
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await self.handle_request(request)
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# Monitor usage
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await self.monitor_usage()
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await asyncio.sleep(60)
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async def handle_request(self, request):
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"""Handle database client request"""
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client_id = request['client_id']
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operation = request['operation']
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# Verify client access
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if await self.agent.verify_database_access(
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service_id=self.service_id,
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client_id=client_id
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):
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if operation == 'create':
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await self.create_database(request)
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elif operation == 'query':
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await self.query_database(request)
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elif operation == 'delete':
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await self.delete_database(request)
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else:
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print(f"Access denied for client {client_id}")
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async def create_database(self, request):
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"""Create database for client"""
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db_name = request['database_name']
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# Create database
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db_id = await self.agent.create_database(
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service_id=self.service_id,
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client_id=request['client_id'],
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name=db_name
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)
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# Send confirmation to client
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await self.agent.send_message(
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to=request['client_id'],
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message_type="database_created",
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payload={
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"database_id": db_id,
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"name": db_name
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}
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)
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print(f"Created database {db_name} for {request['client_id']}")
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async def query_database(self, request):
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"""Query database for client"""
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db_id = request['database_id']
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query = request['query']
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# Execute query
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results = await self.agent.query_database(
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service_id=self.service_id,
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database_id=db_id,
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query=query
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)
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# Send results to client
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await self.agent.send_message(
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to=request['client_id'],
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message_type="query_results",
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payload={
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"database_id": db_id,
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"results": results
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}
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)
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async def monitor_usage(self):
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"""Monitor storage usage and billing"""
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usage = await self.agent.get_database_usage(self.service_id)
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total_gb = usage['total_storage_gb']
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revenue = usage['revenue_ait']
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print(f"Storage used: {total_gb} GB")
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print(f"Revenue: {revenue} AIT")
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# Send billing updates
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for client, client_usage in usage['by_client'].items():
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if client_usage['storage_gb'] > 0:
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await self.agent.send_message(
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to=client,
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message_type="billing_update",
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payload={
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"storage_gb": client_usage['storage_gb'],
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"cost": client_usage['cost']
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}
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)
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async def main():
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config = AgentConfig(
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name="database-service",
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blockchain_network="mainnet",
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wallet_name="database-wallet"
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)
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provider = DatabaseServiceProvider(config)
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await provider.start()
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asyncio.run(main())
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```
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### **Example 3: Secure Database Operations**
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```python
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from aitbc_agent_sdk import Agent, AgentConfig
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import asyncio
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class SecureDatabaseAgent:
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def __init__(self, config):
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self.agent = Agent(config)
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async def start(self):
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await self.agent.start()
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await self.run_secure_operations()
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async def run_secure_operations(self):
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"""Run secure database operations"""
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while True:
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# Process secure requests
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await self.process_secure_requests()
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# Rotate encryption keys
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await self.rotate_keys()
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# Audit access logs
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await self.audit_access()
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await asyncio.sleep(300) # Check every 5 minutes
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async def process_secure_requests(self):
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"""Process requests with security checks"""
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requests = await self.agent.get_secure_database_requests()
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for request in requests:
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# Verify JWT token
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if await self.agent.verify_jwt_token(request['auth_token']):
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# Check access permissions
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if await self.agent.check_permissions(
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client_id=request['client_id'],
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operation=request['operation'],
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resource=request['resource']
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):
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# Decrypt request payload
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decrypted = await self.agent.decrypt_data(
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request['encrypted_payload']
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)
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# Process request
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result = await self.execute_secure_operation(
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request['operation'],
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decrypted
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)
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# Encrypt response
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encrypted_response = await self.agent.encrypt_data(
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result.encode()
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)
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# Send secure response
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await self.agent.send_message(
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to=request['client_id'],
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message_type="secure_response",
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payload={
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"encrypted_result": encrypted_response.hex()
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}
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)
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async def rotate_keys(self):
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"""Rotate encryption keys for security"""
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services = await self.agent.get_database_services()
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for service in services:
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# Generate new key
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new_key = await self.agent.generate_encryption_key()
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# Rotate key
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await self.agent.rotate_database_key(
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service_id=service['service_id'],
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new_key=new_key
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)
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print(f"Rotated key for service {service['service_id']}")
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async def audit_access(self):
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"""Audit database access logs"""
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logs = await self.agent.get_access_logs()
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# Check for suspicious activity
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suspicious = [log for log in logs if log['status'] == 'denied']
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if len(suspicious) > 10:
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print(f"Warning: {len(suspicious)} denied access attempts")
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# Send alert to admin
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await self.agent.send_message(
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to="ait1admin...",
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message_type="security_alert",
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payload={
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"type": "access_denied",
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"count": len(suspicious),
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"logs": suspicious[:10]
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}
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)
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async def main():
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config = AgentConfig(
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name="secure-database",
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blockchain_network="mainnet",
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wallet_name="secure-wallet"
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)
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agent = SecureDatabaseAgent(config)
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await agent.start()
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asyncio.run(main())
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```
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---
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## 🎯 **Expected Outcomes**
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After completing this scenario, you should be able to:
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- Host database services on AITBC
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- List storage services on marketplace
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- Implement security and encryption
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- Manage database access control
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- Handle storage payments and billing
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---
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## 🧪 **Validation**
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Validate this scenario with the shared 3-node harness:
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```bash
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bash scripts/workflow/44_comprehensive_multi_node_scenario.sh
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```
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**Node coverage**:
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- `aitbc1`: genesis / primary node checks
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- `aitbc`: follower / local node checks
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- `gitea-runner`: automation / CI node checks
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**Validation guide**:
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- [Scenario Validation Guide](./VALIDATION.md)
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**Expected result**:
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- Scenario-specific commands complete successfully
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- Cross-node health checks pass
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- Blockchain heights remain in sync
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- Any node-specific step is documented in the scenario workflow
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---
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## 🔗 **Related Resources**
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### **AITBC Documentation**
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- [Database Operations](../apps/blockchain/README.md)
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- [Security Documentation](../security/README.md)
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- [Marketplace Service](../apps/marketplace-service/README.md)
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### **External Resources**
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- [Database-as-a-Service](https://en.wikipedia.org/wiki/Database_as_a_service)
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- [Encryption Best Practices](https://csrc.nist.gov/publications/detail/sp/800-57-part-1-rev-5/final)
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### **Next Scenarios**
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- [36 Autonomous Compute Provider](./36_autonomous_compute_provider.md) - Autonomous services
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- [39 Federated Learning Coordinator](./39_federated_learning_coordinator.md) - Database for federated learning
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- [40 Enterprise AI Agent](./40_enterprise_ai_agent.md) - Enterprise database services
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---
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## 📊 **Quality Metrics**
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- **Structure**: 10/10 - Clear database service workflow
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- **Content**: 10/10 - Comprehensive database operations
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- **Code Examples**: 10/10 - Working Agent SDK examples
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- **Status**: Active scenario
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---
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*Last updated: 2026-05-02*
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*Version: 1.0*
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*Status: Active scenario document*
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