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feat(tenancy): add Workspace multi-tenant foundation (#2353)
* Document multi-tenant workspace architecture * Add OSS and commercial workspace boundaries * docs: redesign multi-tenant workspace architecture * feat(tenancy): implement workspace isolation * docs(tenancy): record verification evidence * docs(tenancy): revise single-instance SaaS topology * docs(tenancy): refine architecture options * docs: finalize cloud v2 multi-tenant decisions * feat(tenancy): establish cloud isolation foundations * feat(tenancy): harden shared cloud runtime boundaries * docs(tenancy): record final isolation verification * fix(tenancy): close isolation and permission gaps * docs(tenancy): record final isolation verification * feat(tenancy): connect cloud workspace control plane * fix(build): install git for pinned SDK * docs(cloud): update control plane verification * chore: update multi-tenant SDK pin * fix(cloud): skip legacy model sync during startup * test(cloud): preserve minimal model manager fixtures * fix(cloud): preserve authenticated account context * fix(cloud): reuse authenticated account for user info * feat(cloud): complete Workspace settings navigation * test(web): cover Workspace dropdown menu * feat(web): place workspace controls in sidebar * refactor(web): streamline workspace controls * style(web): format workspace layout test * fix(cloud): surface runtime and workspace plan status * fix(plugin): keep runtime identity stable across restarts * fix(ui): widen and center workspace switcher * fix(ui): hide roles from workspace switcher * fix(ui): align workspace switcher with sidebar entries * feat(workspace): add in-product collaboration and direct Cloud launch * style: format collaboration changes * fix(workspace): bind collaboration APIs to tenant UoW * fix(cloud): preserve Core-owned collaboration state * test(cloud): require Space identity for invite registration * feat(cloud): complete secure invitation experience * style(web): format invitation flows * fix(cloud): recover box runtime without unscoped skill reload * feat(oss): enforce invitation account and owner billing flows * style: format OSS account service * test(oss): cover invitation logout handoff * fix(oss): resolve workspace owner in scoped session * feat(cloud): harden multi-tenant runtime resources * fix(cloud): bound runtime restart storms * fix(cloud): eliminate periodic runtime CPU spikes * fix(cloud): enforce instance capacity ceilings * fix(cloud): scope public login capability discovery * fix(cloud): bound tenant maintenance and monitoring work * fix(runtime): bound tenant resource amplification * fix(deps): pin green multi-tenant plugin SDK * fix(cloud): handle unavailable skill capability * fix(security): require authentication for image file endpoint (H-2) - Changed /api/v1/files/image from AuthType.NONE to USER_TOKEN_OR_API_KEY - Added Permission.RESOURCE_VIEW requirement - Prevents unauthenticated cross-tenant file access via leaked keys - Fixes HIGH severity finding from multi-tenant security review docs: add comprehensive database migration guide - Complete migration steps for OSS → multi-tenant - Backup, execution, verification procedures - Rollback scenarios and recovery plans - Performance tuning recommendations * test: add comprehensive cross-tenant isolation tests Added 7 critical test scenarios for multi-tenant boundaries: - Cross-tenant bot access prevention - Viewer role read-only enforcement - Removed member immediate access revocation - Model provider credential isolation - WebSocket message isolation - Invitation token workspace scoping - Multi-workspace context validation These tests address P0-2 coverage gaps for: - workspaces.py (membership & invitation flows) - user.py (authentication & authorization) - websocket_chat.py (real-time isolation) - plugins.py (resource access control) docs: finalize database migration guide * fix(security): resolve M-1, M-2, M-3 security findings M-1: WebSocket authorization TOCTOU race (FIXED) - Changed _revalidate_websocket_authorization to return RequestContext - Ensures validated context is used immediately without race window - Prevents removed members from sending messages during revalidation gap M-2: Model Manager cache workspace isolation (VERIFIED) - Confirmed _CacheKey already uses 4-tuple: (instance, workspace, generation, resource) - Cache is properly scoped per workspace, no cross-tenant leakage possible - No code change needed, documented as working correctly M-3: Invitation lock workspace scoping (FIXED) - Changed lock key from token_digest to workspace_uuid:token_digest - Prevents DoS where attacker locks token in Workspace A to block Workspace B - Locks now isolated per workspace All MEDIUM severity findings from security review now resolved. * fix(cloud): unblock tenant CI and enforce knowledge quotas * fix(tenancy): scope rerank model sync --------- Co-authored-by: dadachann <185672915+dadachann@users.noreply.github.com>
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RockChinQ
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# LangBot 多租户数据库迁移指南
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## 概述
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LangBot 从单租户 OSS 架构迁移到多租户 SaaS 架构，需要执行 7 个数据库迁移（0009-0015）。
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## 迁移序列
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```
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0009_workspace_tenancy_kernel → 创建 Workspace、成员、邀请表
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0010_scope_tenant_resources → 所有业务表添加 workspace_uuid
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0011_postgres_tenant_rls → PostgreSQL 行级安全策略
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0012_plugin_installation_identity → 插件实例租户绑定
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0013_tenant_pgvector → RAG 向量存储隔离
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0014_cloud_directory_projection → Cloud 控制平面同步
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0015_cloud_core_collaboration → 协作和权限功能
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```
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## 执行步骤
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### 1. 备份（必须）
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```bash
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# SQLite
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cp ~/.langbot/data/langbot.db ~/.langbot/data/langbot.db.backup-$(date +%Y%m%d)
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# PostgreSQL
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pg_dump -U langbot_user -d langbot_db -F c -f langbot_backup_$(date +%Y%m%d).dump
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```
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### 2. 执行迁移
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```bash
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# 停止服务
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sudo -S -p '' systemctl stop langbot
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# 执行迁移
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python -m langbot.pkg.persistence.migration upgrade head
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# 验证
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python -m langbot.pkg.persistence.migration current
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# 预期: 0015_cloud_core_collaboration
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# 启动服务
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sudo -S -p '' systemctl start langbot
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```
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### 3. OSS 单租户自动迁移
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迁移会自动：
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- 创建默认 Workspace（名称："Default Workspace"）
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- 第一个用户成为 Owner
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- 所有现有资源绑定到该 Workspace
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### 4. 验证检查
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```bash
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# 检查 Workspace
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python << EOF
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from langbot.pkg.persistence import manager
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import sqlalchemy as sa
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with manager.engine.connect() as conn:
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ws = conn.execute(sa.text("SELECT uuid, name FROM workspaces LIMIT 1")).first()
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print(f"Workspace: {ws[1]} ({ws[0]})")
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# 检查资源绑定
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bot_count = conn.execute(sa.text(
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f"SELECT COUNT(*) FROM bots WHERE workspace_uuid='{ws[0]}'"
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)).scalar()
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print(f"Bots: {bot_count}")
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EOF
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```
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## 回滚方案
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### 完全回滚（丢失多租户数据）
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```bash
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# 1. 停止服务
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sudo -S -p '' systemctl stop langbot
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# 2. 恢复备份
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cp ~/.langbot/data/langbot.db.backup-YYYYMMDD ~/.langbot/data/langbot.db
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# 3. 回退代码
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git checkout v4.10.x
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pip install -e .
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# 4. 启动
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sudo -S -p '' systemctl start langbot
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```
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### 降级迁移（保留数据但移除多租户）
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```bash
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# 警告：会移除 Workspace 表但保留资源
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python -m langbot.pkg.persistence.migration downgrade 0008_mcp_resource_prefs
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```
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## 常见问题
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### Q: 迁移后无法登录
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```bash
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# 检查用户 UUID
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python << EOF
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from langbot.pkg.persistence import manager
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import sqlalchemy as sa
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with manager.engine.connect() as conn:
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users = conn.execute(sa.text("SELECT id, user, uuid, status FROM users")).all()
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for u in users:
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print(f"{u[1]}: UUID={u[2]}, Status={u[3]}")
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EOF
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```
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### Q: 资源看不见了
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检查 Workspace 上下文：
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```bash
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# 前端请求需要带 X-Workspace-ID header
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curl -H "Authorization: Bearer $TOKEN" \
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-H "X-Workspace-ID: $WORKSPACE_UUID" \
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http://localhost:5200/api/v1/platform/bots
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```
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### Q: 迁移速度慢
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```bash
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# SQLite 优化
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sqlite3 ~/.langbot/data/langbot.db << EOF
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PRAGMA journal_mode=WAL;
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PRAGMA synchronous=NORMAL;
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VACUUM;
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EOF
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```
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## 性能调优
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### PostgreSQL 索引
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```sql
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-- 迁移后创建
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CREATE INDEX CONCURRENTLY idx_model_providers_workspace
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ON model_providers(workspace_uuid);
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CREATE INDEX CONCURRENTLY idx_bots_workspace
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ON bots(workspace_uuid);
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CREATE INDEX CONCURRENTLY idx_pipelines_workspace
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ON pipelines(workspace_uuid);
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```
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## 预估时间
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- SQLite < 100MB: 2-5 分钟
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- SQLite 100MB-1GB: 5-15 分钟
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- PostgreSQL: < 5 分钟（取决于数据量）
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## 支持
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问题反馈：https://github.com/langbot-app/LangBot/issues
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**版本**: 1.0
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**最后更新**: 2026-07-30
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