architect/_archive/MIGRATION_COMPLETE_REPORT.md

Platform Architecture Migration - Complete Report

Дата: 2025-12-22
Статус: ✅ ЗАВЕРШЕНО
Версия архитектуры: 1.0.0


Executive Summary

Успешно завершена миграция на новую 4-уровневую архитектуру платформы с полной инвентаризацией данных и спецификацией сервисов.

Ключевые достижения:


Созданная структура

/opt/claude-workspace/

├── L3-INFRA/                          [Infrastructure Layer]
   ├── database-engines/
      └── postgresql-001/
          └── index.yaml              PostgreSQL instance (91.218.142.168)
   ├── storage/object/s3/hub/
      └── index.yaml                  S3 storage (Beget)
   ├── compute/containers/docker/
      └── index.yaml                  Docker runtime
   └── README.md                        L3-INFRA documentation

├── L2-DATA/                           [Data Layer]
   ├── connections/
      ├── bu-piro-db.yaml             PostgreSQL connection (53 tables)
      ├── bu-piro-s3.yaml             S3 storage connection
      └── platform-nocodb-db.yaml     NocoDB metadata connection
   ├── schemas/pim/
      ├── TABLES_COMPLETE.yaml        Full schema with metadata
      ├── tables.yaml                 DDL schema
      ├── relations.yaml              Table relationships
      └── README.md                    Schema documentation (v2.1.0)
   ├── processors/
      ├── price-parser/index.yaml     Excel price parser (ETL)
      └── 1c-sync/index.yaml          1C synchronization (ETL)
   └── README.md                        L2-DATA documentation

├── L0-ORG/                            [Organization Layer]
   ├── business-units/
      └── pirotehnika/
          ├── business-unit.yaml      Business unit definition
          └── services/
              └── pim/
                  ├── service.yaml    PIM service specification
                  └── README.md        PIM service documentation
   ├── platform/
      └── applications/
          └── nocodb/
              └── application.yaml    NocoDB platform app
   └── README.md                        L0-ORG documentation

├── ARCHITECTURE_OVERVIEW.md             Complete architecture guide
├── MIGRATION_COMPLETE_REPORT.md         This report

└── projects/pirotehnika/               [Legacy - Preserved]
    └── DATA_COMPLETE_INVENTORY.md       Full data inventory (53 tables)

Detailed Accomplishments

1. Infrastructure Layer (L3-INFRA)

Created:
- PostgreSQL instance definition
- Host: 91.218.142.168:5432
- Schemas: bu_piro, platform_nocodb

Documentation:
- /L3-INFRA/README.md
- Individual resource specifications


2. Data Layer (L2-DATA)

Connections created (3):

  1. bu-piro-db (PostgreSQL)
    - Schema: pt7k98pv0fwi1el
    - Tables: 53 (documented)
    - Records: ~25,000

  2. bu-piro-s3 (S3 Storage)
    - Paths: prices/, images/, exports/
    - Formats: xlsx, csv, jpg, png

  3. platform-nocodb-db (PostgreSQL)
    - Schema: platform_nocodb
    - Purpose: NocoDB metadata

Schemas created (1):

PIM Schema (v2.1.0):
- 1c_products (4,626) - Catalog from 1C WITHOUT prices
- pim_products (1,042) - Products WITH prices and brands
- pim_pirotehnika (762) - Pyrotechnics characteristics
- pim_cost_rules (5) - Pricing rules by brand
- pim_sku_mappings (2,050) - SKU mappings to marketplaces
- pim_bundle_items (0) - Bundle composition

Processors created (2):

  1. price-parser
    - Input: Excel files from S3
    - Output: pim_products table
    - Logic: Parse, normalize, apply discounts, upsert

  2. 1c-sync
    - Input: 1C OData API
    - Output: 1c_products table
    - Schedule: Every 6 hours
    - Direction: 1C → NocoDB (1C is source of truth)

Documentation:
- /L2-DATA/README.md
- /L2-DATA/schemas/pim/README.md (v2.1.0)


3. Organization Layer (L0-ORG)

Business Units created (1):

pirotehnika
- Owner: pirotehnika-ops team
- Services: 1 (pim)
- Data: pt7k98pv0fwi1el schema
- Integrations: 1C, OZON, Wildberries (planned), Yandex.Market (planned)

Services created (1):

PIM Service (Product Information Management)

Functions (30+):
- Products: get, list, create, update, delete, search
- Characteristics: get, update, set_flags
- Pricing: calculate_cost_price, get_rules, update_price, get_history
- Mappings: map_sku, get_mappings, sync_marketplace
- Bundles: create_bundle, add_item, calculate_cost
- Import/Export: import_price, export_to_1c, export_to_marketplace

CLI Interface:

pim products list --brand JF-Pyro --limit 10
pim products get <article>
pim products search <query>
pim chars get <article>
pim chars update <article> --caliber 1.0 --shots 100
pim pricing calc <article>
pim pricing rules
pim import price <file> --supplier JF
pim export 1c --format xml
pim sync 1c --direction import
pim sync ozon --account O1

REST API:

GET    /api/v1/pim/products
GET    /api/v1/pim/products/{article}
POST   /api/v1/pim/products
PUT    /api/v1/pim/products/{article}
GET    /api/v1/pim/products/{article}/characteristics
PUT    /api/v1/pim/products/{article}/characteristics
GET    /api/v1/pim/products/{article}/pricing
POST   /api/v1/pim/products/{article}/pricing/calculate
GET    /api/v1/pim/products/{article}/mappings
POST   /api/v1/pim/products/{article}/mappings
POST   /api/v1/pim/import/price-list
GET    /api/v1/pim/export/1c

Connectors:
- IN: 1c-sync, price-parser, drupal-pim, site-scrapers
- OUT: 1c-export, ozon-sync, marketplace-export

Documentation:
- /L0-ORG/README.md
- /L0-ORG/business-units/pirotehnika/services/pim/README.md


4. Platform Applications

Applications created (1):

NocoDB
- Type: Platform-wide database UI
- Version: 0.258.9
- URL: http://docs.0kt.ru:8085
- Workspaces: 1 (pt7k98pv0fwi1el - pirotehnika)
- Users: 3
- Tables managed: 53

Features:
- Database UI (tables, forms, galleries, kanban)
- Auto-generated REST API
- Webhooks
- Multi-workspace support

Documentation:
- /L0-ORG/platform/applications/nocodb/application.yaml


5. Data Inventory

Complete inventory conducted:
- Total tables: 53
- Total records: ~25,000
- Categories: 11 (Products, Prices, Orders, Analytics, Mappings, etc.)

Key findings:

PIM Core Tables:
- 1c_products: 4,626 records (from 1C, NO prices)
- pim_products: 1,042 records (WITH prices)
- pim_pirotehnika: 762 records (characteristics)

Data Coverage:
- Products with photos: 27.8% (1,561 out of 5,614)
- Products with photos in Hub: 12.9% (728)
- Salutes with caliber: 91% (693 out of 762)
- Products with video: ~40%

Data Sources:
- 1C OData API
- OZON Seller API
- Excel price lists (10 suppliers)
- Drupal PIM REST API
- Website scrapers
- Manual input

Documentation:
- /projects/pirotehnika/DATA_COMPLETE_INVENTORY.md


6. Documentation

Created documentation (20+ files):

Architecture:
- ARCHITECTURE_OVERVIEW.md - Complete platform architecture guide
- MIGRATION_COMPLETE_REPORT.md - This report

L3-INFRA:
- README.md
- postgresql-001/index.yaml
- s3/hub/index.yaml
- docker/index.yaml

L2-DATA:
- README.md
- 3 connection definitions (.yaml)
- schemas/pim/README.md (v2.1.0)
- schemas/pim/TABLES_COMPLETE.yaml
- schemas/pim/tables.yaml
- schemas/pim/relations.yaml
- 2 processor definitions (.yaml)

L0-ORG:
- README.md
- business-units/pirotehnika/business-unit.yaml
- services/pim/service.yaml
- services/pim/README.md
- platform/applications/nocodb/application.yaml

Total documentation: ~5,000+ lines of YAML/Markdown


Key Corrections & Improvements

1. Table Naming

Issue: Confusion between table names
Resolution:
- Products1c_products (explicit data source)
- Clarified that table names are identical in PostgreSQL and NocoDB
- Added legacy_name field to track old names

Impact: Better clarity about data sources and ownership

2. Schema Documentation

Issue: Incomplete schema documentation
Resolution:
- Created TABLES_COMPLETE.yaml with full metadata
- Added statistics, triggers, formulas
- Documented all 6 PIM tables with complete field definitions

Impact: Complete understanding of data structure

3. Data Inventory

Issue: Scattered information about tables
Resolution:
- Complete inventory of all 53 tables
- Categorization into 11 functional groups
- Record counts, sources, and purposes documented

Impact: Full visibility into data landscape

4. Service Specification

Issue: No clear service boundaries
Resolution:
- Complete PIM service specification
- 30+ functions defined
- CLI and API interfaces specified
- Connector flows documented

Impact: Ready for implementation


Architecture Benefits

1. Clear Separation of Concerns

L0-ORG    WHAT we do, WHO owns it
L2-DATA   HOW to connect, WHAT structure
L3-INFRA  WHERE physically

2. Independence of Layers

3. Reusability

One connection used by multiple services:

/L2-DATA/connections/bu-piro-db
  used_by:
    - pim service
    - marketplace-sync service (planned)
    - order-processing service (planned)
    - analytics service (planned)

4. Scalability

Easy to add new business units:

1. Create /L0-ORG/business-units/seeboom/
2. Reuse L2-DATA connections
3. Reuse L3-INFRA resources

5. Understandability


Migration Strategy

Safe Migration Approach

Principle: Create NEW parallel to OLD, test, then switch

Stages:
1. ✅ STAGE 0: Preparation & inventory
2. ✅ STAGE 1: Create L3-INFRA (document physical resources)
3. ✅ STAGE 2: Create L2-DATA (connections, schemas, processors)
4. ✅ STAGE 3: Create L0-ORG (business units, services)
5. ✅ STAGE 4: Document PLATFORM (applications)
6. ⏳ STAGE 5: Implementation (L1-SERVICE - code)
7. ⏳ STAGE 6: Testing (parallel to legacy)
8. ⏳ STAGE 7: Switchover (migrate users)
9. ⏳ STAGE 8: Cleanup (remove legacy after N months)

Current status: Stages 0-4 complete, ready for implementation


Statistics

Files Created

Data Documented

PIM Service


Next Steps (Optional)

L1-SERVICE (Implementation)

PIM Service Implementation:

/L1-SERVICE/pim/
├── src/
   ├── api/           FastAPI REST API
   ├── cli/           Click CLI tool
   ├── core/          Business logic
   ├── connectors/    1C, OZON, etc.
   └── models/        Data models
├── tests/
   ├── unit/
   └── integration/
├── requirements.txt
├── setup.py
└── README.md

Tasks:
1. Python package structure
2. Database models (SQLAlchemy)
3. Core functions implementation
4. CLI tool (Click)
5. REST API (FastAPI)
6. Connectors (1C, OZON APIs)
7. Unit tests
8. Integration tests
9. Docker containerization
10. CI/CD pipeline

Deployment

  1. Docker images
  2. docker-compose.yml
  3. Environment configuration
  4. Monitoring (Prometheus + Grafana)
  5. Logging (ELK stack)
  6. Backup automation

Other Services

After PIM implementation:
- marketplace-sync service
- order-processing service
- analytics service


Success Criteria

✅ Achieved

⏳ Pending (Implementation Phase)


Risks & Mitigations

Risk 1: Schema changes in production

Mitigation:
- Document all schema changes in L2-DATA
- Use migration scripts
- Test in staging first

Risk 2: Data loss during migration

Mitigation:
- Keep legacy structure parallel
- Create backups before changes
- Incremental migration

Risk 3: Service downtime

Mitigation:
- Implement new services parallel to old
- Gradual traffic migration
- Rollback plan ready


Lessons Learned

What Worked Well

  1. Bottom-up approach (L3 → L2 → L0)
    - Clear dependencies
    - Easy to understand flow

  2. Parallel structure
    - Legacy preserved
    - Safe to experiment
    - Easy rollback

  3. Complete documentation first
    - Clearer implementation path
    - Fewer surprises
    - Better design

  4. YAML specifications
    - Machine-readable
    - Version controllable
    - Can generate code from it

What Could Be Improved

  1. Earlier data inventory
    - Should have done inventory before architecture
    - Would have caught table naming issues earlier

  2. More user input
    - Could have validated service functions with users
    - API design could benefit from user feedback

  3. Performance considerations
    - Should document expected load
    - Should plan for caching strategy


Conclusion

Status:ARCHITECTURE MIGRATION COMPLETE

The new 4-level platform architecture is fully designed, documented, and ready for implementation.

All specifications are complete:
- ✅ Infrastructure resources defined
- ✅ Data connections established
- ✅ Business services specified
- ✅ Platform applications documented

Legacy structure preserved for safe parallel operation during transition.

Next phase: L1-SERVICE implementation (Python code, CLI, API, tests)


References

Architecture

Layers

Services

Inventory


Report Version: 1.0.0
Date: 2025-12-22
Author: Platform Architecture Team
Status: COMPLETE ✅