Added auth functionality, initial work with views and field types
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Francisco Gaona
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TENANT_MIGRATION_IMPLEMENTATION_COMPLETE.md
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TENANT_MIGRATION_IMPLEMENTATION_COMPLETE.md
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# Tenant Migration Implementation - Complete
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## ✅ Implementation Summary
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All tenant migration functionality has been successfully added to the backend. This implementation provides comprehensive tools for managing database schema changes across all tenants in the multi-tenant platform.
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## 📁 Files Created
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### Scripts Directory: `/root/neo/backend/scripts/`
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1. **`migrate-tenant.ts`** (167 lines)
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- Migrates a single tenant by slug or ID
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- Handles password decryption
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- Provides detailed progress output
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- Usage: `npm run migrate:tenant <slug-or-id>`
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2. **`migrate-all-tenants.ts`** (170 lines)
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- Migrates all active tenants in sequence
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- Collects success/failure statistics
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- Provides comprehensive summary
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- Exits with error code if any tenant fails
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- Usage: `npm run migrate:all-tenants`
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3. **`check-migration-status.ts`** (181 lines)
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- Checks migration status across all tenants
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- Shows completed and pending migrations
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- Identifies which tenants need updates
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- Usage: `npm run migrate:status`
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4. **`README.md`** (Comprehensive documentation)
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- Detailed usage instructions
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- Security notes on password encryption
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- Troubleshooting guide
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- Best practices
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- Example workflows
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### Documentation Files
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5. **`/root/neo/TENANT_MIGRATION_GUIDE.md`** (Root level guide)
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- Quick start guide
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- Architecture diagrams
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- Complete workflow examples
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- CI/CD integration examples
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- Security documentation
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### Updated Files
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6. **`/root/neo/backend/package.json`**
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- Added 6 new migration scripts to the `scripts` section
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## 🚀 Available Commands
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| Command | Description |
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|---------|-------------|
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| `npm run migrate:make <name>` | Create a new migration file in `migrations/tenant/` |
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| `npm run migrate:status` | Check migration status for all tenants |
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| `npm run migrate:tenant <slug>` | Run pending migrations for a specific tenant |
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| `npm run migrate:all-tenants` | Run pending migrations for all active tenants |
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| `npm run migrate:latest` | Run migrations on default database (rarely used) |
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| `npm run migrate:rollback` | Rollback last migration on default database |
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## 🔧 How It Works
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### Architecture
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```
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┌─────────────────────────────────────────────────────────┐
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│ Central Database │
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│ │
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│ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
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│ │ Tenant │ │ Tenant │ │ Tenant │ │
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│ │ 1 │ │ 2 │ │ N │ │
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│ └──────────┘ └──────────┘ └──────────┘ │
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│ │ │ │ │
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│ │ (encrypted │ │ │
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│ │ password) │ │ │
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└───────┼──────────────┼──────────────┼───────────────────┘
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│ │ │
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▼ ▼ ▼
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┌───────────┐ ┌───────────┐ ┌───────────┐
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│ Tenant │ │ Tenant │ │ Tenant │
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│ DB 1 │ │ DB 2 │ │ DB N │
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│ │ │ │ │ │
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│ Migrations│ │ Migrations│ │ Migrations│
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│ Applied │ │ Applied │ │ Applied │
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└───────────┘ └───────────┘ └───────────┘
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```
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### Migration Flow
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1. **Creating a Migration**
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```bash
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npm run migrate:make add_custom_fields
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# Creates: migrations/tenant/20250127123456_add_custom_fields.js
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```
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2. **Testing on Single Tenant**
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```bash
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npm run migrate:tenant acme-corp
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# Output:
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# 📋 Tenant: Acme Corp (acme-corp)
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# 📊 Database: acme_corp_db
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# 🔄 Running migrations...
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# ✅ Ran 1 migration(s):
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# - 20250127123456_add_custom_fields.js
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```
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3. **Checking Status**
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```bash
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npm run migrate:status
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# Shows which tenants have pending migrations
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```
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4. **Applying to All Tenants**
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```bash
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npm run migrate:all-tenants
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# Migrates all active tenants sequentially
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# Provides summary of successes/failures
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```
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## 🔐 Security Features
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### Password Encryption
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- Tenant database passwords are encrypted using **AES-256-CBC**
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- Stored encrypted in central database
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- Automatically decrypted during migration
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- Requires `DB_ENCRYPTION_KEY` environment variable
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### Environment Setup
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```bash
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# Required for migration scripts
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export DB_ENCRYPTION_KEY="your-32-character-secret-key!!"
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```
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This key must match the key used by `TenantService` for encryption/decryption.
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## 📋 Example Workflows
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### Scenario 1: Adding a Field to All Tenants
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```bash
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# 1. Create migration
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npm run migrate:make add_priority_field
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# 2. Edit the generated file
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# migrations/tenant/20250127120000_add_priority_field.js
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# 3. Test on one tenant
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npm run migrate:tenant test-company
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# 4. Check status
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npm run migrate:status
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# 5. Apply to all
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npm run migrate:all-tenants
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```
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### Scenario 2: Checking Migration Status
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```bash
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npm run migrate:status
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# Output:
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# 📋 Found 3 active tenant(s)
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#
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# 📦 Acme Corp (acme-corp)
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# Database: acme_corp_db
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# Completed: 5 migration(s)
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# ✅ Up to date
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#
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# 📦 TechStart (techstart)
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# Database: techstart_db
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# Completed: 4 migration(s)
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# ⚠️ Pending: 1 migration(s)
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# - 20250127120000_add_priority_field.js
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#
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# 💡 Run: npm run migrate:all-tenants
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```
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### Scenario 3: New Tenant Provisioning (Automatic)
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When a new tenant is created via the API:
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```typescript
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// Happens automatically in TenantProvisioningService
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POST /tenants
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{
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"name": "New Company",
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"slug": "new-company"
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}
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// Backend automatically:
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// 1. Creates database
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// 2. Runs all migrations
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// 3. Sets tenant status to ACTIVE
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```
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## 🛠️ Technical Implementation
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### Script Structure
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All scripts follow this pattern:
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1. **Import Dependencies**
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```typescript
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import { PrismaClient as CentralPrismaClient } from '../prisma/generated-central/client';
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import knex, { Knex } from 'knex';
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import { createDecipheriv } from 'crypto';
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```
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2. **Decrypt Password**
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```typescript
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function decryptPassword(encryptedPassword: string): string {
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// AES-256-CBC decryption
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}
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```
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3. **Create Tenant Connection**
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```typescript
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function createTenantKnexConnection(tenant: any): Knex {
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const decryptedPassword = decryptPassword(tenant.dbPassword);
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return knex({ /* config */ });
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}
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```
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4. **Run Migrations**
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```typescript
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const [batchNo, log] = await tenantKnex.migrate.latest();
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```
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5. **Report Results**
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```typescript
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console.log(`✅ Ran ${log.length} migrations`);
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```
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## 🧪 Testing the Implementation
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### 1. Verify Scripts Are Available
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```bash
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cd /root/neo/backend
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npm run | grep migrate
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```
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Expected output:
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```
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migrate:make
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migrate:latest
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migrate:rollback
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migrate:status
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migrate:tenant
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migrate:all-tenants
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```
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### 2. Test Creating a Migration
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```bash
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npm run migrate:make test_migration
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```
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Should create a file in `migrations/tenant/`
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### 3. Check Status (if tenants exist)
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```bash
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npm run migrate:status
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```
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### 4. Test Single Tenant Migration (if tenants exist)
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```bash
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npm run migrate:tenant <your-tenant-slug>
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```
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## 📚 Documentation Locations
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- **Quick Reference**: `/root/neo/TENANT_MIGRATION_GUIDE.md`
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- **Detailed Scripts Docs**: `/root/neo/backend/scripts/README.md`
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- **Architecture Overview**: `/root/neo/MULTI_TENANT_IMPLEMENTATION.md`
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## 🎯 Key Features
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✅ **Single Tenant Migration** - Target specific tenants for testing
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✅ **Bulk Migration** - Update all tenants at once
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✅ **Status Checking** - See which tenants need updates
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✅ **Progress Tracking** - Detailed output for each operation
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✅ **Error Handling** - Graceful failure with detailed error messages
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✅ **Security** - Encrypted password storage and decryption
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✅ **Comprehensive Docs** - Multiple levels of documentation
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## 🔄 Integration Points
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### With Existing Code
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1. **TenantProvisioningService**
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- Already uses `runTenantMigrations()` method
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- New scripts complement automatic provisioning
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- Same migration directory: `migrations/tenant/`
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2. **Knex Configuration**
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- Uses existing `knexfile.js`
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- Same migration table: `knex_migrations`
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- Compatible with existing migrations
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3. **Prisma Central Client**
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- Scripts use central DB to fetch tenant list
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- Same encryption/decryption logic as backend services
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## 🚦 Next Steps
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### To Use This Implementation:
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1. **Ensure Environment Variables**
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```bash
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export DB_ENCRYPTION_KEY="your-32-character-secret-key!!"
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```
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2. **Generate Prisma Client** (if not already done)
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```bash
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cd /root/neo/backend
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npx prisma generate --schema=prisma/schema-central.prisma
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```
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3. **Check Current Status**
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```bash
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npm run migrate:status
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```
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4. **Create Your First Migration**
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```bash
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npm run migrate:make add_my_feature
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```
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5. **Test and Apply**
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```bash
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# Test on one tenant
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npm run migrate:tenant <slug>
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# Apply to all
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npm run migrate:all-tenants
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```
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## 📊 Complete File List
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```
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/root/neo/
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├── TENANT_MIGRATION_GUIDE.md (new)
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└── backend/
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├── package.json (updated - 6 new scripts)
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├── knexfile.js (existing)
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├── migrations/
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│ └── tenant/ (existing)
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│ ├── 20250126000001_create_users_and_rbac.js
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│ ├── 20250126000002_create_object_definitions.js
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│ ├── 20250126000003_create_apps.js
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│ ├── 20250126000004_create_standard_objects.js
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│ └── 20250126000005_add_ui_metadata_to_fields.js
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├── scripts/ (new directory)
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│ ├── README.md (new)
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│ ├── migrate-tenant.ts (new)
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│ ├── migrate-all-tenants.ts (new)
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│ └── check-migration-status.ts (new)
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└── src/
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└── tenant/
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└── tenant-provisioning.service.ts (existing - uses migrations)
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```
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## ✨ Summary
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The tenant migration system is now fully implemented with:
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- ✅ 3 TypeScript migration scripts
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- ✅ 6 npm commands
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- ✅ 2 comprehensive documentation files
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- ✅ Full integration with existing architecture
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- ✅ Security features (password encryption)
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- ✅ Error handling and progress reporting
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- ✅ Status checking capabilities
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You can now manage database migrations across all tenants efficiently and safely! 🎉
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