基于 FastAPI + LangGraph + React + WebSocket 的完整解决方案
Bug 反馈(国内/国外)· 智能建议处理 · 自动化根因分析 · 全流程闭环管理
本报告详细阐述了一套企业级 AI Agent 系统的完整架构设计与技术方案,基于 FastAPI + LangGraph + React + WebSocket 技术栈构建。系统实现了从 Bug 反馈(自动区分国内/国外区域)、智能建议处理、基于日志的自动化根因分析(RCA)、修复方案生成、任务智能分发到修复验证闭环的全流程自动化。
| 指标类别 | 具体指标 | 目标值 | 测量方法 |
|---|---|---|---|
| 性能指标 | WebSocket 消息端到端延迟 (P95) | < 500ms | Prometheus + Grafana |
| API 响应时间 (P99) | < 800ms | APM 工具 | |
| 系统吞吐量 | 10,000+ QPS | 负载测试 | |
| AI 准确率 | Bug 分类准确率 | > 95% | 混淆矩阵评估 |
| 根因定位成功率 (Top-3) | > 85% | 人工标注对比 | |
| 任务分发匹配度 | > 90% | 工程师满意度调查 | |
| 业务指标 | 工单自动关闭率 | > 60% | 工单系统统计 |
| 平均修复时间 (MTTR) | 降低 60% | 历史数据对比 | |
| 系统可用性 (SLA) | 99.9% | 正常运行时间/总时间 |
FastAPI + LangGraph + React + WebSocket
Django Channels + Celery
Node.js + Socket.IO
| 需求类别 | 具体需求 | 优先级 | 技术方案 | 验收标准 |
|---|---|---|---|---|
| Bug 反馈 | 多渠道接入(Web/App/API/IM) | Must | 统一 Gateway + 适配器模式 | 支持 4+ 渠道 |
| 自动区域识别(国内/国外) | Must | IP 地理位置 + 用户配置 | 准确率 > 99% | |
| 智能分类与优先级判定 | Must | LLM + Few-shot Learning | 准确率 > 95% | |
| 截图/日志附件上传 | Should | MinIO/S3 对象存储 | 支持 100MB+ | |
| 建议处理 | 日志自动采集与聚合 | Must | ELK Stack + Fluentd | 延迟 < 1 分钟 |
| 异常检测与根因分析 | Must | LangGraph RCA Agent | Top-3 命中率 > 85% | |
| 修复方案自动生成 | Should | RAG + Code Search | 可用率 > 70% | |
| 相似案例推荐 | Could | 向量相似度搜索 | 相关性 > 80% | |
| 工作流管理 | 任务自动分派给指定人员 | Must | 规则引擎 + 负载均衡 | 匹配度 > 90% |
| 处理进度实时跟踪 | Must | WebSocket 推送 + 状态机 | 延迟 < 500ms | |
| 升级与超时机制 | Should | 定时任务 + 通知链 | 100% 触发 | |
| 修复验证与闭环 | Must | 自动化测试 + 人工确认 | 闭环率 > 95% |
# 场景描述
用户在 APP 提交:"支付失败,提示'银行系统异常'"
# 系统处理流程
1. 区域识别: IP 显示中国大陆 → 路由到国内集群
2. 智能分类: LLM 识别为"支付类-P0 紧急"
3. 日志检索: 自动查询支付服务最近 10 分钟错误日志
4. 根因分析: 发现某银行接口超时率 95%
5. 方案生成: 建议切换到备用支付通道
6. 任务分发: 自动指派给支付团队值班工程师
7. 自动修复: 执行预设的切换脚本(需人工确认)
8. 验证闭环: 监控支付成功率恢复正常,自动关闭工单
# 结果
• MTTR: 从 2 小时降至 8 分钟
• 影响用户:从 10 万 + 降至 5000
# 场景描述
德国用户通过邮件提交:"GDPR 数据删除请求未处理"
# 系统处理流程
1. 区域识别: 邮箱域名 + IP → 欧盟区域
2. 合规标记: 自动添加"GDPR"标签
3. 数据隔离: 数据存储在欧洲节点,禁止出境
4. 专业分派: 指派给熟悉 GDPR 的法务团队
5. 模板回复: 生成符合 GDPR 要求的回复模板
6. 时限监控: GDPR 要求 72 小时内响应,系统倒计时提醒
# 合规保障
• 数据本地化存储
• 访问审计日志
• 自动脱敏处理
enterprise-ai-agent/
├── backend/ # 后端服务
│ ├── app/
│ │ ├── main.py # FastAPI 应用入口
│ │ ├── config.py # 配置管理
│ │ ├── api/
│ │ │ ├── v1/
│ │ │ │ ├── bug_reports.py # Bug 反馈接口
│ │ │ │ ├── suggestions.py # 建议提交接口
│ │ │ │ ├── tickets.py # 工单管理接口
│ │ │ │ └── users.py # 用户管理接口
│ │ │ └── websocket.py # WebSocket 处理器
│ │ ├── agents/
│ │ │ ├── __init__.py
│ │ │ ├── classifier.py # Bug 分类 Agent
│ │ │ ├── rca.py # 根因分析 Agent
│ │ │ ├── solution.py # 方案生成 Agent
│ │ │ ├── dispatcher.py # 任务分发 Agent
│ │ │ └── verifier.py # 验证闭环 Agent
│ │ ├── graphs/
│ │ │ ├── ticket_workflow.py # 工单状态图
│ │ │ └── rca_workflow.py # RCA 流程图
│ │ ├── models/
│ │ │ ├── ticket.py # 工单模型
│ │ │ ├── user.py # 用户模型
│ │ │ ├── log.py # 日志模型
│ │ │ └── message.py # 消息模型
│ │ ├── schemas/
│ │ │ ├── ticket.py # Pydantic Schema
│ │ │ └── websocket.py # WS 消息格式
│ │ ├── services/
│ │ │ ├── notification.py # 通知服务
│ │ │ ├── analytics.py # 分析服务
│ │ │ └── export.py # 导出服务
│ │ ├── utils/
│ │ │ ├── geoip.py # 地理位置
│ │ │ ├── security.py # 安全工具
│ │ │ └── logger.py # 日志工具
│ │ └── middleware/
│ │ ├── auth.py # 认证中间件
│ │ └── rate_limit.py # 限流中间件
│ ├── tests/
│ ├── Dockerfile
│ └── requirements.txt
│
├── frontend/ # 前端应用
│ ├── src/
│ │ ├── components/
│ │ ├── pages/
│ │ ├── hooks/
│ │ ├── stores/
│ │ └── utils/
│ ├── package.json
│ └── Dockerfile
│
├── deploy/ # 部署配置
│ ├── kubernetes/
│ ├── docker-compose.yml
│ └── helm/
│
└── docs/ # 文档
├── api.md
└── architecture.md
-- 工单表
CREATE TABLE tickets (
id BIGSERIAL PRIMARY KEY,
ticket_number VARCHAR(50) UNIQUE NOT NULL,
region VARCHAR(10) NOT NULL, # CN / GLOBAL
type VARCHAR(20) NOT NULL, # BUG / FEATURE / SUGGESTION
priority VARCHAR(5) NOT NULL DEFAULT 'P2', # P0/P1/P2/P3
status VARCHAR(30) NOT NULL DEFAULT 'RECEIVED',
title VARCHAR(500) NOT NULL,
description TEXT,
environment JSONB,
reporter_id BIGINT REFERENCES users(id),
assignee_id BIGINT REFERENCES users(id),
rca_report_id BIGINT REFERENCES rca_reports(id),
tags VARCHAR(100)[],
metadata JSONB,
created_at TIMESTAMP NOT NULL DEFAULT NOW(),
updated_at TIMESTAMP,
resolved_at TIMESTAMP,
closed_at TIMESTAMP,
INDEX idx_region_status (region, status),
INDEX idx_priority (priority),
INDEX idx_assignee (assignee_id),
INDEX idx_created_at (created_at)
);
-- RCA 报告表
CREATE TABLE rca_reports (
id BIGSERIAL PRIMARY KEY,
ticket_id BIGINT UNIQUE REFERENCES tickets(id),
root_causes JSONB NOT NULL, # [{cause, evidence, confidence}]
log_analysis JSONB,
similar_cases BIGINT[],
recommendations JSONB,
generated_by VARCHAR(100),
confidence FLOAT CHECK (confidence >= 0 AND confidence <= 1),
created_at TIMESTAMP NOT NULL DEFAULT NOW()
);
-- 工单状态变更日志
CREATE TABLE ticket_logs (
id BIGSERIAL PRIMARY KEY,
ticket_id BIGINT NOT NULL REFERENCES tickets(id),
action VARCHAR(50) NOT NULL, # CREATED/ASSIGNED/IN_PROGRESS/RESOLVED/CLOSED
actor_id BIGINT REFERENCES users(id),
actor_type VARCHAR(20), # HUMAN / AGENT
details JSONB,
created_at TIMESTAMP NOT NULL DEFAULT NOW(),
INDEX idx_ticket_id (ticket_id),
INDEX idx_created_at (created_at)
);
# Bug 反馈相关 API
# 1. 创建 Bug 反馈
POST /api/v1/bug-reports
Content-Type: application/json
Authorization: Bearer {token}
Request Body:
{
"title": "支付接口超时",
"description": "用户在支付时遇到'银行系统异常'提示",
"environment": {
"platform": "iOS",
"version": "17.3",
"app_version": "5.2.1"
},
"attachments": ["screenshot_001.png"],
"contact": {
"email": "user@example.com",
"phone": "+86-138****1234"
}
}
Response 201 Created:
{
"id": 12345,
"ticket_number": "TKT-20260312-00123",
"region": "CN",
"status": "RECEIVED",
"created_at": "2026-03-12T10:30:00Z"
}
# 2. 查询工单详情
GET /api/v1/tickets/{ticket_id}
Authorization: Bearer {token}
Response 200 OK:
{
"id": 12345,
"ticket_number": "TKT-20260312-00123",
"title": "支付接口超时",
"status": "IN_PROGRESS",
"priority": "P0",
"assignee": {
"id": 456,
"name": "张三",
"team": "支付团队"
},
"rca_report": {
"root_causes": [
{
"cause": "某银行接口超时",
"confidence": 0.92,
"evidence": "错误日志显示超时率 95%"
}
]
},
"timeline": [...]
}
# 3. 更新工单状态
PATCH /api/v1/tickets/{ticket_id}/status
Authorization: Bearer {token}
Request Body:
{
"status": "RESOLVED",
"resolution": "已切换到备用支付通道",
"code_changes": "https://gitlab.example.com/merge_requests/1234"
}
# 4. 批量查询工单
GET /api/v1/tickets?region=CN&status=IN_PROGRESS&priority=P0&page=1&size=20
Authorization: Bearer {token}
Response 200 OK:
{
"items": [...],
"total": 156,
"page": 1,
"size": 20,
"total_pages": 8
}
# WebSocket 连接建立
wss://api.example.com/ws/{user_id}?token={jwt_token}
# 客户端 → 服务端消息格式
{
"type": "subscribe_ticket",
"ticket_id": 12345,
"request_id": "req_001"
}
{
"type": "send_message",
"ticket_id": 12345,
"content": "请问进展如何?"
}
# 服务端 → 客户端消息格式
# 1. 工单状态更新
{
"type": "ticket_status_update",
"ticket_id": 12345,
"data": {
"old_status": "ASSIGNED",
"new_status": "IN_PROGRESS",
"assignee": "张三",
"updated_at": "2026-03-12T10:35:00Z"
}
}
# 2. RCA 分析进度
{
"type": "rca_progress",
"ticket_id": 12345,
"data": {
"step": "正在检索日志...",
"progress": 45,
"details": "已分析 10,000 条日志,发现 3 个异常"
}
}
# 3. 新消息通知
{
"type": "new_message",
"ticket_id": 12345,
"data": {
"id": 789,
"sender": "张三",
"content": "已定位问题,正在修复",
"created_at": "2026-03-12T10:40:00Z"
}
}
# 4. 心跳保活
Client → Server: {"type": "ping", "timestamp": 1710234567}
Server → Client: {"type": "pong", "timestamp": 1710234567}
# 5. 错误响应
{
"type": "error",
"request_id": "req_001",
"error": {
"code": "INVALID_TICKET_ID",
"message": "工单不存在"
}
}
from typing import TypedDict, List, Annotated, Optional
from langgraph.graph import StateGraph, START, END
from langgraph.checkpoint.memory import MemorySaver
import operator
# 定义共享状态
class TicketState(TypedDict):
"""工单处理完整状态"""
# 基础信息
ticket_id: str
ticket_number: str
region: str
type: str
priority: str
# 分类结果
bug_category: str
tags: List[str]
# RCA 相关
logs: List[dict]
anomalies: List[dict]
rca_report: Optional[dict]
# 解决方案
solution: Optional[dict]
code_changes: Optional[str]
# 分发相关
assignee: Optional[str]
team: Optional[str]
# 消息历史
messages: Annotated[List[str], operator.add]
# 状态追踪
status: str
retry_count: int
error_message: Optional[str]
# 创建状态图
workflow = StateGraph(TicketState)
# 添加所有节点
workflow.add_node("classify_bug", classify_bug_node)
workflow.add_node("fetch_logs", fetch_logs_node)
workflow.add_node("detect_anomalies", detect_anomalies_node)
workflow.add_node("analyze_root_cause", analyze_root_cause_node)
workflow.add_node("generate_solution", generate_solution_node)
workflow.add_node("assign_ticket", assign_ticket_node)
workflow.add_node("notify_engineer", notify_engineer_node)
workflow.add_node("human_approval", human_approval_node)
# 定义边(状态转换)
workflow.add_edge(START, "classify_bug")
workflow.add_edge("classify_bug", "fetch_logs")
workflow.add_edge("fetch_logs", "detect_anomalies")
workflow.add_edge("detect_anomalies", "analyze_root_cause")
workflow.add_edge("analyze_root_cause", "generate_solution")
workflow.add_edge("generate_solution", "assign_ticket")
workflow.add_edge("assign_ticket", "human_approval")
workflow.add_edge("human_approval", "notify_engineer")
workflow.add_edge("notify_engineer", END)
# 添加条件分支(重试机制)
def should_retry(state: TicketState) -> str:
if state["retry_count"] < 3:
return "retry"
else:
return "fail"
workflow.add_conditional_edges(
"analyze_root_cause",
should_retry,
{
"retry": "fetch_logs",
"fail": END
}
)
# 编译为可执行图(启用检查点)
memory = MemorySaver()
app = workflow.compile(checkpointer=memory)
from langchain_openai import ChatOpenAI
from langchain_core.prompts import ChatPromptTemplate
from langchain_core.output_parsers import JsonOutputParser
async def classify_bug_node(state: TicketState) -> dict:
"""Bug 分类节点"""
llm = ChatOpenAI(model="gpt-4-turbo-preview", temperature=0)
prompt = ChatPromptTemplate.from_messages([
("system", """你是一位经验丰富的技术支持专家。请分析 Bug 报告并分类。
分类标准:
- category: frontend/backend/database/network/security/other
- priority: P0(紧急)/P1(高)/P2(中)/P3(低)
- tags: 最多 5 个相关标签
以 JSON 格式返回。"""),
("human", """标题:{title}
描述:{description}
环境:{environment}
{format_instructions}""")
])
parser = JsonOutputParser()
chain = prompt | llm | parser
result = await chain.ainvoke({
"title": state["title"],
"description": state["description"],
"environment": state.get("environment", "unknown"),
"format_instructions": parser.get_format_instructions()
})
return {
"bug_category": result["category"],
"priority": result["priority"],
"tags": result["tags"]
}
async def analyze_root_cause_node(state: TicketState) -> dict:
"""根因分析节点"""
llm = ChatOpenAI(model="gpt-4-turbo-preview", temperature=0.3)
prompt = ChatPromptTemplate.from_messages([
("system", """你是一位资深 SRE 专家。请分析异常日志并找出根因。
请提供:
1. Top-3 可能的根因(按可能性排序)
2. 每个根因的证据链
3. 置信度评分 (0-1)
4. 推荐的修复方案
以 JSON 格式返回。"""),
("human", """异常日志:
{anomalies}
相关错误日志:
{error_logs}
系统上下文:
{context}
{format_instructions}""")
])
parser = JsonOutputParser()
chain = prompt | llm | parser
result = await chain.ainvoke({
"anomalies": json.dumps(state["anomalies"]),
"error_logs": json.dumps(state["logs"][:10]),
"context": state.get("context", ""),
"format_instructions": parser.get_format_instructions()
})
return {
"rca_report": result,
"status": "ANALYZED"
}
from fastapi import WebSocket, WebSocketDisconnect
from typing import Dict, Set
import json
import asyncio
class ConnectionManager:
"""WebSocket 连接管理器"""
def __init__(self):
# user_id -> WebSocket
self.active_connections: Dict[str, WebSocket] = {}
# ticket_id -> set of user_ids
self.ticket_subscribers: Dict[str, Set[str]] = {}
# 心跳超时时间(秒)
self.timeout = 60
async def connect(self, websocket: WebSocket, user_id: str) -> bool:
"""建立连接"""
await websocket.accept()
# 发送欢迎消息
await self.send_personal_message({
"type": "connected",
"user_id": user_id,
"timestamp": asyncio.get_event_loop().time()
}, user_id)
self.active_connections[user_id] = websocket
# 启动心跳检测
asyncio.create_task(self.heartbeat(user_id))
return True
def disconnect(self, user_id: str):
"""断开连接"""
if user_id in self.active_connections:
del self.active_connections[user_id]
# 清理订阅关系
for ticket_id in list(self.ticket_subscribers.keys()):
if user_id in self.ticket_subscribers[ticket_id]:
self.ticket_subscribers[ticket_id].remove(user_id)
async def send_personal_message(self, message: dict, user_id: str):
"""发送个人消息"""
if user_id in self.active_connections:
websocket = self.active_connections[user_id]
try:
await websocket.send_text(json.dumps(message))
except:
self.disconnect(user_id)
async def subscribe_ticket(self, user_id: str, ticket_id: str):
"""订阅工单更新"""
if ticket_id not in self.ticket_subscribers:
self.ticket_subscribers[ticket_id] = set()
self.ticket_subscribers[ticket_id].add(user_id)
async def broadcast_ticket_update(self, ticket_id: str, update: dict):
"""广播工单更新给所有订阅者"""
if ticket_id in self.ticket_subscribers:
message = {
"type": "ticket_update",
"ticket_id": ticket_id,
"data": update
}
for user_id in self.ticket_subscribers[ticket_id]:
await self.send_personal_message(message, user_id)
async def heartbeat(self, user_id: str):
"""心跳检测"""
while True:
await asyncio.sleep(self.timeout)
if user_id not in self.active_connections:
break
try:
# 发送 ping
await self.send_personal_message({
"type": "ping",
"timestamp": asyncio.get_event_loop().time()
}, user_id)
except:
self.disconnect(user_id)
break
manager = ConnectionManager()
async def stream_rca_analysis(ticket_id: str, user_id: str):
"""流式输出 RCA 分析过程"""
steps = [
{"step": "初始化分析任务", "progress": 5},
{"step": "连接日志系统", "progress": 15},
{"step": "检索相关日志", "progress": 30},
{"step": "执行异常检测", "progress": 50},
{"step": "分析根因", "progress": 70},
{"step": "生成修复建议", "progress": 85},
{"step": "完成分析报告", "progress": 100}
]
for step in steps:
# 模拟处理延迟
await asyncio.sleep(1.5)
# 发送进度更新
await manager.send_personal_message({
"type": "rca_progress",
"ticket_id": ticket_id,
"data": step
}, user_id)
# 发送最终结果
rca_result = await perform_rca_analysis(ticket_id)
await manager.send_personal_message({
"type": "rca_complete",
"ticket_id": ticket_id,
"data": rca_result
}, user_id)
from elasticsearch import AsyncElasticsearch
from datetime import datetime, timedelta
class LogSearchService:
def __init__(self):
self.es = AsyncElasticsearch(
hosts=["http://es-cluster:9200"],
retry_on_timeout=True,
max_retries=3
)
async def search_related_logs(
self,
service: str,
time_window: str,
keywords: List[str],
size: int = 1000
) -> List[dict]:
"""智能日志检索"""
query = {
"query": {
"bool": {
"must": [
{"term": {"service.keyword": service}},
{"range": {"@timestamp": {"gte": f"now-{time_window}"}}},
{
"multi_match": {
"query": " ".join(keywords),
"fields": [
"message^3",
"error_type^2",
"stack_trace",
"trace_id"
],
"fuzziness": "AUTO"
}
}
],
"filter": [
{"terms": {"level.keyword": ["ERROR", "FATAL"]}}
]
}
},
"sort": [
{"@timestamp": {"order": "desc"}}
],
"size": size,
"_source": {
"includes": ["@timestamp", "message", "error_type", "stack_trace", "trace_id"]
}
}
response = await self.es.search(index="logs-*", body=query)
return [hit["_source"] for hit in response["hits"]["hits"]]
async def aggregate_errors_by_time(self, service: str, interval: str = "5m"):
"""按时间聚合错误统计"""
query = {
"size": 0,
"query": {
"bool": {
"must": [
{"term": {"service.keyword": service}},
{"range": {"@timestamp": {"gte": "now-1h"}}}
]
}
},
"aggs": {
"errors_over_time": {
"date_histogram": {
"field": "@timestamp",
"calendar_interval": interval,
"min_doc_count": 1
},
"aggs": {
"error_types": {
"terms": {
"field": "error_type.keyword",
"size": 10
}
}
}
}
}
}
response = await self.es.search(index="logs-*", body=query)
return response["aggregations"]["errors_over_time"]["buckets"]
version: '3.8'
services:
# FastAPI 后端
fastapi-app:
build:
context: ./backend
dockerfile: Dockerfile
ports:
- "8000:8000"
environment:
- DATABASE_URL=postgresql://user:pass@postgres:5432/tickets
- REDIS_URL=redis://redis:6379/0
- ELASTICSEARCH_URL=http://elasticsearch:9200
- OPENAI_API_KEY=${OPENAI_API_KEY}
- LOG_LEVEL=INFO
depends_on:
postgres:
condition: service_healthy
redis:
condition: service_started
elasticsearch:
condition: service_healthy
deploy:
replicas: 3
resources:
limits:
cpus: '2'
memory: 2G
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
interval: 30s
timeout: 10s
retries: 3
# React 前端
frontend:
build:
context: ./frontend
dockerfile: Dockerfile
ports:
- "3000:80"
depends_on:
- fastapi-app
# PostgreSQL 数据库
postgres:
image: postgres:15-alpine
volumes:
- postgres_data:/var/lib/postgresql/data
environment:
- POSTGRES_DB=tickets
- POSTGRES_USER=user
- POSTGRES_PASSWORD=pass
healthcheck:
test: ["CMD-SHELL", "pg_isready -U user"]
interval: 10s
timeout: 5s
retries: 5
# Redis 缓存
redis:
image: redis:7-alpine
command: redis-server --appendonly yes
volumes:
- redis_data:/data
healthcheck:
test: ["CMD", "redis-cli", "ping"]
interval: 10s
timeout: 5s
retries: 5
# Elasticsearch
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:8.11.0
environment:
- discovery.type=single-node
- "ES_JAVA_OPTS=-Xms2g -Xmx2g"
- xpack.security.enabled=false
volumes:
- es_data:/usr/share/elasticsearch/data
healthcheck:
test: ["CMD-SHELL", "curl -f http://localhost:9200/_cluster/health"]
interval: 30s
timeout: 10s
retries: 5
# RabbitMQ 消息队列
rabbitmq:
image: rabbitmq:3.12-management
ports:
- "15672:15672"
environment:
- RABBITMQ_DEFAULT_USER=guest
- RABBITMQ_DEFAULT_PASS=guest
volumes:
- rabbitmq_data:/var/lib/rabbitmq
# Prometheus 监控
prometheus:
image: prom/prometheus:v2.50.0
volumes:
- ./deploy/prometheus.yml:/etc/prometheus/prometheus.yml
- prometheus_data:/prometheus
ports:
- "9090:9090"
command:
- '--config.file=/etc/prometheus/prometheus.yml'
- '--storage.tsdb.path=/prometheus'
# Grafana 可视化
grafana:
image: grafana/grafana:10.3.0
ports:
- "3001:3000"
volumes:
- grafana_data:/var/lib/grafana
- ./deploy/grafana/dashboards:/etc/grafana/provisioning/dashboards
environment:
- GF_SECURITY_ADMIN_PASSWORD=admin123
depends_on:
- prometheus
volumes:
postgres_data:
redis_data:
es_data:
rabbitmq_data:
prometheus_data:
grafana_data:
# deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: fastapi-app
namespace: ai-agent
spec:
replicas: 3
selector:
matchLabels:
app: fastapi
template:
metadata:
labels:
app: fastapi
spec:
containers:
- name: fastapi
image: registry.example.com/ai-agent:latest
ports:
- containerPort: 8000
env:
- name: DATABASE_URL
valueFrom:
secretKeyRef:
name: db-secret
key: url
- name: REDIS_URL
value: "redis://redis-master:6379/0"
resources:
requests:
memory: "512Mi"
cpu: "500m"
limits:
memory: "2Gi"
cpu: "2000m"
livenessProbe:
httpGet:
path: /health
port: 8000
initialDelaySeconds: 30
periodSeconds: 10
readinessProbe:
httpGet:
path: /ready
port: 8000
initialDelaySeconds: 5
periodSeconds: 5
---
apiVersion: v1
kind: Service
metadata:
name: fastapi-service
namespace: ai-agent
spec:
selector:
app: fastapi
ports:
- protocol: TCP
port: 80
targetPort: 8000
type: ClusterIP
---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
name: fastapi-hpa
namespace: ai-agent
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: fastapi-app
minReplicas: 3
maxReplicas: 20
metrics:
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: 70
- type: Resource
resource:
name: memory
target:
type: Utilization
averageUtilization: 80
本方案设计了一套完整的企业级 AI Agent 系统,包含6 层架构设计、详细的数据库 schema、完整的 API 规范、WebSocket 通信协议、LangGraph 多 Agent 实现、日志分析与 RCA 系统以及生产级部署方案。通过 FastAPI + LangGraph + React + WebSocket 的技术组合,构建了高可用、可扩展、智能化的运维支撑平台。
| 阶段 | 时间周期 | 核心任务 | 交付物 |
|---|---|---|---|
| Phase 1 | 第 1-2 月 | 基础架构搭建、Bug 收集与分类自动化 | 可运行的 MVP 版本 |
| Phase 2 | 第 3-4 月 | RCA 能力建设、日志分析集成 | 自动化根因分析功能 |
| Phase 3 | 第 5-6 月 | 任务分发优化、闭环验证完善 | 全流程自动化 |
| Phase 4 | 第 7-8 月 | 多模态支持、预测性维护 | AI 增强功能 |
| Phase 5 | 持续迭代 | 性能优化、功能扩展、用户体验提升 | 持续改进 |