[deploy] PyMySQL 替换 + Tailscale 组网 + config.yaml + 路径修复

- db_layer.py: mysql-connector-python(19MB) → PyMySQL(45KB), 去掉连接池
- config_loader.py: 修复路径解析 (2级→3级 dirname), FAM-Core + FAM-Edge 均修复
- Tailscale 组网完成: Oracle=100.74.137.126, NAS=100.70.234.39, 互通验证通过
- NAS Python 依赖: flask/gunicorn/pymysql/PyYAML 全部安装成功
- NAS 代码部署: /volume1/web/sentinel-home-ai/, FAM-Core 7 模块导入 PASS
- NAS DB 连接验证: PyMySQL → MariaDB 10.11.11, 6 张表可见, PASS
- config.yaml 创建: FAM-Core + FAM-Edge + FAM-UI (Tailscale IP + 密码)
- requirements.txt: mysql-connector-python → PyMySQL

fam-core/config/config.yaml

@@ -0,0 +1,37 @@
+# FAM-Core 配置文件 (NAS 端) - 实际部署配置
+# Tailscale: NAS=100.70.234.39, Oracle=100.74.137.126
+
+server:
+  host: "0.0.0.0"
+  port: 8000
+
+database:
+  host: "127.0.0.1"
+  port: 3306
+  user: "root"
+  password: "iLoveJava5!"
+  database: "sentinel_home_ai"
+  unix_socket: "/run/mysqld/mysqld10.sock"
+
+scheduler:
+  scan_interval: 60
+  video_dir: "/volume1/surveillance"
+  video_extensions: [".mp4", ".mkv", ".avi"]
+  file_stable_seconds: 60
+  camera_name: "客厅"
+
+dispatcher:
+  poll_interval: 30
+  edge_url: "http://100.74.137.126:5000/api/edge/video/analyze"
+  webhook_url: "http://100.70.234.39:8000/api/core/callback/event"
+  max_retries: 3
+
+video_server:
+  base_url: "http://100.70.234.39:8000/media"
+  token: "sentinel-media-2026"
+  video_dir: "/volume1/surveillance"
+
+chat_handler:
+  ollama_url: "http://100.74.137.126:11434/api/generate"
+  model_name: "llava-phi3"
+  timeout: 120

fam-core/requirements.txt

@@ -1,5 +1,5 @@
 flask>=3.0.0
 gunicorn>=21.2.0
-mysql-connector-python>=8.3.0
+PyMySQL>=1.1.0
 PyYAML>=6.0
 requests>=2.31.0

fam-core/src/fam_core/config_loader.py

@@ -24,7 +24,7 @@ def load_config(config_path=None):
     """加载 YAML 配置文件，自动解析 ${ENV_VAR} 引用"""
     if config_path is None:
         config_path = os.path.join(
-            os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
+            os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))),
             'config', 'config.yaml'
         )
     with open(config_path, 'r', encoding='utf-8') as f:

fam-core/src/fam_core/db_layer.py

@@ -1,9 +1,9 @@
 """
 数据库访问层 - MariaDB 连接管理与 CRUD 操作
+使用 PyMySQL (纯 Python, ~45KB) 连接 MariaDB 服务器
 """
 import json
-import mysql.connector
-from mysql.connector import pooling
+import pymysql
 from datetime import datetime
 from typing import Optional, List, Dict, Any
 
@@ -13,7 +13,6 @@ from .logger import setup_logger
 logger = setup_logger('fam-core.db')
 
 _config = None
-_pool = None
 
 
 def get_config():
@@ -23,29 +22,22 @@ def get_config():
     return _config
 
 
-def get_pool():
-    """获取数据库连接池（单例）"""
-    global _pool
-    if _pool is None:
-        cfg = get_config().get('database', {})
-        _pool = pooling.MySQLConnectionPool(
-            host=cfg.get('host', '127.0.0.1'),
-            port=cfg.get('port', 3306),
-            user=cfg.get('user', 'root'),
-            password=cfg.get('password', ''),
-            database=cfg.get('database', 'sentinel_home_ai'),
-            charset='utf8mb4',
-            collation='utf8mb4_unicode_ci',
-            pool_name='fam_core_pool',
-            pool_size=5,
-            autocommit=False
-        )
-    return _pool
-
-
 def get_conn():
-    """从连接池获取一个连接"""
-    return get_pool().get_connection()
+    """获取数据库连接（单 worker gunicorn，无需连接池）"""
+    cfg = get_config().get('database', {})
+    kwargs = dict(
+        host=cfg.get('host', '127.0.0.1'),
+        port=cfg.get('port', 3306),
+        user=cfg.get('user', 'root'),
+        password=cfg.get('password', ''),
+        database=cfg.get('database', 'sentinel_home_ai'),
+        charset='utf8mb4',
+        autocommit=False
+    )
+    unix_socket = cfg.get('unix_socket')
+    if unix_socket:
+        kwargs['unix_socket'] = unix_socket
+    return pymysql.connect(**kwargs)
 
 
 # ============================================================
@@ -73,7 +65,7 @@ def get_pending_tasks(limit=10) -> List[Dict]:
     """获取待处理任务"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         cursor.execute(
             "SELECT * FROM process_tasks WHERE status = 'PENDING' ORDER BY created_at ASC LIMIT %s",
             (limit,)
@@ -87,7 +79,7 @@ def get_tasks_by_status(status: str, limit=10) -> List[Dict]:
     """按状态获取任务"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         cursor.execute(
             "SELECT * FROM process_tasks WHERE status = %s ORDER BY created_at ASC LIMIT %s",
             (status, limit)
@@ -130,7 +122,7 @@ def get_task(task_id: int) -> Optional[Dict]:
     """获取单个任务"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         cursor.execute("SELECT * FROM process_tasks WHERE task_id = %s", (task_id,))
         return cursor.fetchone()
     finally:
@@ -207,7 +199,7 @@ def query_event_details(person: str, queried_date: str) -> List[Dict]:
     """查询某人在某天的事件明细"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         cursor.execute(
             """SELECT frame_timestamp, camera_name, person, action, clothing,
                       is_attention_event
@@ -225,7 +217,7 @@ def get_recent_events(limit=20, offset=0, date_filter=None) -> List[Dict]:
     """获取事件列表（分页 + 日期筛选）"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         if date_filter:
             cursor.execute(
                 """SELECT me.event_id, me.task_id, me.event_start_time, me.event_end_time,
@@ -281,7 +273,7 @@ def get_chat_history(limit=20, date_filter=None, person_filter=None) -> List[Dic
     """获取对话历史"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         conditions = []
         params = []
         if date_filter:
@@ -326,7 +318,7 @@ def get_unnamed_members() -> List[Dict]:
     """获取未命名成员列表"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         cursor.execute(
             """SELECT fm.abstract_label, fm.feature_description, fm.first_seen_at,
                       (SELECT COUNT(*) FROM event_details ed WHERE ed.person = fm.abstract_label) AS event_count
@@ -343,7 +335,7 @@ def get_all_members(include_named=True, include_unnamed=True) -> List[Dict]:
     """获取所有成员"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         conditions = []
         if include_named and include_unnamed:
             pass  # 全部
@@ -420,7 +412,7 @@ def get_known_members_context() -> str:
     """获取已命名+未命名成员清单，用于注入 VLM Prompt"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         cursor.execute(
             "SELECT abstract_label, real_name, feature_description FROM family_members WHERE is_active = TRUE"
         )
@@ -446,7 +438,7 @@ def get_compute_provider_stats() -> List[Dict]:
     """获取 compute_provider 分布统计"""
     conn = get_conn()
     try:
-        cursor = conn.cursor(dictionary=True)
+        cursor = conn.cursor(pymysql.cursors.DictCursor)
         cursor.execute(
             """SELECT
                   JSON_UNQUOTE(JSON_EXTRACT(item, '$')) AS provider,