mem0: add PVC for SQLite history persistence

AI/mem0/deploy.md

@@ -135,15 +135,158 @@ spec:
     app: mem0
 ```
 
+## History PVC（SQLite 持久化）
+
+mem0 的对话历史（history）默认存在 SQLite，**必须用 PVC 持久化**（emptyDir 重启丢失）。
+
+### 前置：创建 PVC
+
+```yaml
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mem0-history
+  namespace: tei
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+  storageClassName: standard  # 根据你的 StorageClass 调整
+```
+
+### 环境变量追加
+
+| 变量 | 值 | 说明 |
+|---|---|---|
+| HISTORY_DB_PATH | /app/data/mem0_history.db | SQLite 数据库路径 |
+
+### PVC + 完整 Deployment
+
+```yaml
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mem0-history
+  namespace: tei
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+  storageClassName: standard
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: mem0-env
+  namespace: tei
+data:
+  DATABASE_URL: "postgres://gitlab:***@192.168.3.49:5432/mem0"
+  APP_DB_NAME: "mem0_app"
+  QDRANT_HOST: "qdrant"
+  QDRANT_PORT: "6333"
+  QDRANT_COLLECTION_NAME: "mem0"
+  EMBEDDER_PROVIDER: "tei"
+  TEI_ENDPOINT: "http://tei:8080"
+  LLM_PROVIDER: "openai"
+  OPENAI_API_KEY: "YOUR_MINIMAX_KEY"
+  OPENAI_BASE_URL: "https://api.minimax.chat/v1"
+  AUTH_DISABLED: "false"
+  MEM0_TELEMETRY: "false"
+  REQUEST_LOG_RETENTION_DAYS: "30"
+  HISTORY_DB_PATH: "/app/data/mem0_history.db"
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: mem0-secrets
+  namespace: tei
+type: Opaque
+stringData:
+  JWT_SECRET: "your-jwt-secret-change-me"
+  ADMIN_API_KEY: "your-admin-key-change-me"
+  POSTGRES_PASSWORD: "gitlab"
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mem0
+  namespace: tei
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: mem0
+  template:
+    metadata:
+      labels:
+        app: mem0
+    spec:
+      containers:
+        - name: mem0
+          image: ccr.ccs.tencentyun.com/tei_agent/mem0:latest
+          ports:
+            - containerPort: 8000
+              name: http
+          envFrom:
+            - configMapRef:
+                name: mem0-env
+            - secretRef:
+                name: mem0-secrets
+          volumeMounts:
+            - name: mem0-history
+              mountPath: /app/data
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: 8000
+            initialDelaySeconds: 30
+            periodSeconds: 10
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: 8000
+            initialDelaySeconds: 10
+            periodSeconds: 5
+          resources:
+            limits:
+              cpu: "2"
+              memory: "4Gi"
+            requests:
+              cpu: "500m"
+              memory: "1Gi"
+      volumes:
+        - name: mem0-history
+          persistentVolumeClaim:
+            claimName: mem0-history
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mem0
+  namespace: tei
+spec:
+  ports:
+    - port: 8000
+      name: http
+  selector:
+    app: mem0
+```
+
 ## 前置要求
 
 1. **pgvector 扩展** — PostgreSQL 需要安装 pgvector
 2. **mem0_app 数据库** — 需要提前创建
 3. **Qdrant collection** — mem0 启动时自动创建（首次调用时）
+4. **mem0-history PVC** — 必须提前创建
 
 ## 验证
 
 ```bash
+kubectl get pvc -n tei mem0-history
 kubectl get pods -n tei -l app=mem0
 kubectl logs -n tei -l app=mem0 --tail=50