# FinTech GitOps CI/CD - Development Environment

**Версия:** 1.0  
**Дата:** Январь 2026  
**Целевая аудитория:** DevOps Team, Infrastructure, Development Team

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## Содержание

1. [Назначение Dev Environment](#1-назначение-dev-environment)
2. [Архитектура Dev окружения](#2-архитектура-dev-окружения)
3. [Технические требования](#3-технические-требования)
4. [План развертывания](#4-план-развертывания)
5. [Тестирование и валидация](#5-тестирование-и-валидация)
6. [Переход к Production](#6-переход-к-production)

---

## 1. Назначение Dev Environment

### 1.1 Зачем нужен отдельный Dev Environment

**Безопасность:**
- Тестирование новых компонентов без риска для production
- Эксперименты с конфигурациями
- Обучение команды на безопасной среде
- Валидация security политик перед production

**Проверка интеграций:**
- Тестирование CI/CD pipelines
- Валидация GitOps workflows
- Проверка backup/restore процедур
- Тестирование disaster recovery scenarios

**Разработка и отладка:**
- Development приложений в production-like окружении
- Debugging проблем без impact на production
- Performance testing и tuning
- Capacity planning и load testing

**Обучение команды:**
- Hands-on тренинг на реальной инфраструктуре
- Практика troubleshooting
- Изучение новых инструментов
- Onboarding новых сотрудников

### 1.2 Отличия от Production

**Масштаб:**
- Меньше ресурсов (~40% от production)
- Меньше replicas для services
- Shorter retention periods для данных
- Simplified HA (не обязательна полная redundancy)

**Данные:**
- Synthetic/mock данные (НЕ production data)
- Anonymized копии production data где необходимо
- Меньшие dataset sizes
- Shorter retention

**Availability:**
- SLA не критичны (допустимы downtime для maintenance)
- Может быть выключен в нерабочее время
- Scheduled maintenance windows без согласования

**Security:**
- Менее строгие access controls (больше людей имеют доступ)
- Simplified authentication (можно без MFA для dev team)
- Relaxed network policies (для удобства debugging)
- НО: все равно следуем основным security practices

---

## 2. Архитектура Dev окружения

### 2.1 Network Layout

**Separate VLAN от Production:**

```
Dev Environment VLAN: 10.100.0.0/16

Зоны (подсети):
├── Management Zone: 10.100.10.0/24
│   ├── Gitea Dev: 10.100.10.10
│   ├── Jenkins Dev: 10.100.10.20
│   ├── Harbor Dev: 10.100.10.30
│   ├── GitOps Operator Dev: 10.100.10.40
│   └── Portainer Dev: 10.100.10.50
│
├── Swarm Cluster Zone: 10.100.20.0/24
│   ├── Manager: 10.100.20.1
│   └── Workers: 10.100.20.2-4 (3 workers)
│
├── AI Zone: 10.100.30.0/24
│   ├── Ollama Dev: 10.100.30.10
│   └── MCP Server Dev: 10.100.30.20
│
├── Monitoring Zone: 10.100.40.0/24
│   ├── Prometheus Dev: 10.100.40.10
│   ├── Grafana Dev: 10.100.40.20
│   └── Loki Dev: 10.100.40.30
│
└── Data Zone: 10.100.50.0/24
    ├── PostgreSQL: 10.100.50.10
    └── Storage: 10.100.50.20
```

**Access:**
- Доступ через тот же VPN что и production (но separate subnet routing)
- Или dedicated Dev VPN (опционально)
- Jump host опционален (можно direct access для удобства dev team)

### 2.2 Simplified Architecture

**Single manager Swarm (упрощение):**
- 1 manager node вместо 3 (не нужен quorum в dev)
- 3 worker nodes (достаточно для testing HA behaviors)

**No full redundancy:**
- Single instance каждого infrastructure service
- No automated failover (можно восстановить manually)
- Simplified backup (daily вместо hourly)

**Shared infrastructure где возможно:**
- Один PostgreSQL server для всех dev databases
- Shared storage (single NFS server)
- Combined monitoring (все в одном Grafana)

---

## 3. Технические требования

### 3.1 Серверная инфраструктура

**Вариант A: Отдельные VM (recommended)**

| Component | Qty | CPU | RAM | Storage | Total Resources |
|-----------|-----|-----|-----|---------|-----------------|
| Gitea | 1 | 4 | 8 GB | 200 GB | 4 vCPU, 8 GB, 200 GB |
| Jenkins | 1 | 8 | 16 GB | 500 GB | 8 vCPU, 16 GB, 500 GB |
| Harbor | 1 | 4 | 8 GB | 2 TB | 4 vCPU, 8 GB, 2 TB |
| Swarm Manager | 1 | 4 | 8 GB | 100 GB | 4 vCPU, 8 GB, 100 GB |
| Swarm Workers | 3 | 8 | 16 GB | 200 GB | 24 vCPU, 48 GB, 600 GB |
| GitOps/Portainer | 1 | 2 | 4 GB | 50 GB | 2 vCPU, 4 GB, 50 GB |
| Ollama | 1 | 8 | 32 GB | 500 GB | 8 vCPU, 32 GB, 500 GB |
| MCP Server | 1 | 4 | 8 GB | 50 GB | 4 vCPU, 8 GB, 50 GB |
| Monitoring | 1 | 8 | 16 GB | 1 TB | 8 vCPU, 16 GB, 1 TB |
| PostgreSQL | 1 | 4 | 8 GB | 200 GB | 4 vCPU, 8 GB, 200 GB |
| Storage/Backup | 1 | 2 | 8 GB | 5 TB | 2 vCPU, 8 GB, 5 TB |
| **TOTAL** | **12 VMs** | **72 vCPU** | **168 GB** | **~10 TB** | - |

**Вариант B: Single powerful server (budget option)**

Если бюджет ограничен, можно развернуть все на одном мощном сервере:

| Component | Specification |
|-----------|--------------|
| **CPU** | 80 vCPU |
| **RAM** | 256 GB |
| **Disk 1** | 2 TB NVMe SSD (OS, apps, databases) |
| **Disk 2** | 10 TB HDD RAID 10 (storage, backups) |
| **Network** | 2x 10 Gbps (bonded) |

Все компоненты как VM на этом single host (используя KVM/Proxmox).

**Pros:** Экономия costs, проще management
**Cons:** Single point of failure (ok для dev), limited scale

### 3.2 Network Infrastructure

**Minimum requirements:**
- 1 Gbps switch с VLAN support
- Firewall с routing между VLANs (может быть virtual/software)
- VPN gateway (shared с production или dedicated)

**Recommended:**
- 10 Gbps switch для лучшей производительности
- Separate internet connection (чтобы dev experiments не влияли на production traffic)

### 3.3 Storage Infrastructure

**Local storage:**
- Fast SSD для OS и applications
- HDD для Harbor images и backups

**Shared storage:**
- Simple NFS server sufficient (не нужен GlusterFS replication в dev)
- 5 TB capacity

---

## 4. План развертывания

### 4.1 Phase 1: Base Infrastructure (Week 1)

**Day 1-2: Network Setup**
- Configure VLANs
- Setup firewall rules
- Configure VPN access
- DNS entries для dev services

**Day 3-4: Server Provisioning**
- Deploy VM или prepare physical servers
- Install OS (Ubuntu 22.04 LTS)
- Basic hardening
- Network configuration

**Day 5: Base Services**
- PostgreSQL installation и setup
- NFS storage setup
- Monitoring agents deployment

### 4.2 Phase 2: Core Services (Week 2)

**Day 1-2: Source Control**
- Deploy Gitea
- Configure PostgreSQL database
- Setup LDAP integration (если используется)
- Create initial repositories structure
- Import existing docs если есть

**Day 3-4: CI/CD Foundation**
- Deploy Jenkins
- Install essential plugins
- Configure Gitea webhook integration
- Setup first sample pipeline
- Test build process

**Day 5: Container Registry**
- Deploy Harbor
- Configure storage backend
- Enable vulnerability scanning
- Setup replication (если есть secondary Harbor)
- Test image push/pull

### 4.3 Phase 3: Orchestration (Week 3)

**Day 1-2: Docker Swarm Setup**
- Initialize Swarm на manager node
- Join worker nodes
- Configure overlay networks
- Setup secrets management
- Deploy test stack

**Day 3: GitOps Automation**
- Deploy GitOps Operator
- Configure Git polling
- Test automated deployment
- Verify rollback functionality

**Day 4: Management UI**
- Deploy Portainer
- Connect к Swarm
- Configure RBAC
- Create user accounts
- Deploy через UI (test)

**Day 5: Integration Testing**
- End-to-end CI/CD test
- Git commit → build → push → deploy
- Verify monitoring
- Test rollback

### 4.4 Phase 4: AI Infrastructure (Week 4)

**Day 1-2: AI Server**
- Deploy Ollama server
- Download AI models (Llama 3, Qwen, etc.)
- Test inference
- Performance tuning

**Day 3-4: MCP Server**
- Deploy MCP Server
- Configure connectors (Gitea, Swarm, DB)
- Test data access
- Integration с Ollama

**Day 5: AI Integration Testing**
- End-to-end AI workflow test
- Query documentation через AI
- Analyze logs через AI
- Generate code examples

### 4.5 Phase 5: Monitoring & Documentation (Week 5)

**Day 1-2: Monitoring Stack**
- Deploy Prometheus
- Deploy Grafana
- Deploy Loki
- Configure dashboards
- Setup alerting rules

**Day 3-4: Documentation**
- Create detailed runbooks
- Document all procedures
- Record configuration details
- Create architecture diagrams
- Write troubleshooting guides

**Day 5: Team Training**
- Walkthrough всех компонентов
- Hands-on exercises
- Q&A session
- Access provisioning

---

## 5. Тестирование и валидация

### 5.1 Functional Testing

**Git Operations:**
- Clone repositories
- Push commits
- Create Pull Requests
- Merge workflows
- Webhook triggers

**CI Pipeline:**
- Build applications (multiple languages)
- Run tests (unit, integration)
- Security scanning
- Docker image creation
- Push к Harbor

**CD Process:**
- Automated deployment
- Manual deployment через Portainer
- Service scaling
- Rolling updates
- Rollback operations

**Monitoring:**
- Metrics collection
- Log aggregation
- Alert triggering
- Dashboard visualization

**AI Capabilities:**
- Query documentation
- Analyze logs
- Code generation
- Troubleshooting assistance

### 5.2 Performance Testing

**Load Testing:**
- Multiple concurrent builds в Jenkins
- High-frequency deployments
- Large image pushes к Harbor
- Monitoring system под нагрузкой

**Capacity Planning:**
- Resource utilization measurement
- Identify bottlenecks
- Determine scaling needs for production

### 5.3 Security Testing

**Vulnerability Scanning:**
- Container images
- Infrastructure components
- Dependencies

**Penetration Testing:**
- Network security
- Access controls
- Authentication mechanisms

**Compliance Validation:**
- Audit logging working
- Data encryption verified
- Access controls enforced

### 5.4 Disaster Recovery Testing

**Backup/Restore:**
- Database backup и restore
- Git repository backup и restore
- Configuration backup
- Full system restore

**Failover Scenarios:**
- Service failures
- Node failures
- Network partitions
- Data corruption

---

## 6. Переход к Production

### 6.1 Lessons Learned от Dev

**Документировать:**
- Все проблемы encountered
- Solutions и workarounds
- Performance bottlenecks
- Configuration optimizations
- Team feedback

**Updates для Production:**
- Refined architecture
- Optimized configurations
- Improved procedures
- Better sizing estimates
- Updated documentation

### 6.2 Production Readiness Checklist

**Infrastructure:**
- [ ] All servers provisioned согласно specs
- [ ] Network configured с proper segmentation
- [ ] Firewall rules implemented и tested
- [ ] VPN access configured
- [ ] Monitoring fully deployed

**Services:**
- [ ] All components deployed
- [ ] High availability configured
- [ ] Backup systems operational
- [ ] Disaster recovery tested
- [ ] Security hardening completed

**Processes:**
- [ ] CI/CD pipelines validated
- [ ] GitOps workflows tested
- [ ] Incident response procedures documented
- [ ] Escalation paths defined
- [ ] On-call rotation established

**Security:**
- [ ] Vulnerability scans completed
- [ ] Penetration testing passed
- [ ] Compliance requirements met
- [ ] Audit logging verified
- [ ] Access controls implemented

**Documentation:**
- [ ] Architecture documented
- [ ] Runbooks created
- [ ] Troubleshooting guides written
- [ ] Contact lists updated
- [ ] Training materials prepared

**Team:**
- [ ] Training completed
- [ ] Access provisioned
- [ ] Roles и responsibilities defined
- [ ] Communication channels established
- [ ] Support procedures understood

### 6.3 Migration Strategy

**Phased Approach:**

**Phase 1: Pilot (1-2 weeks)**
- Migrate 1-2 non-critical applications
- Test full workflow в production
- Gather feedback
- Refine processes

**Phase 2: Gradual Migration (1-2 months)**
- Migrate applications in batches
- 3-5 applications per week
- Monitor closely
- Address issues quickly

**Phase 3: Full Production (ongoing)**
- All new applications use GitOps
- Legacy applications migrated over time
- Continuous improvement
- Regular reviews

**Rollback Plan:**
- Keep legacy deployment process operational в параллель
- Document rollback procedures
- Test rollback scenarios
- Clear decision criteria для rollback

---

**Success Criteria:**

Dev environment считается успешным когда:
1. Все компоненты deployed и operational
2. End-to-end CI/CD workflow работает
3. Team trained и comfortable с инструментами
4. Documentation complete и accurate
5. Production deployment plan validated

---

**Sign-off:**
- DevOps Lead: _______________
- Development Lead: _______________
- Infrastructure Lead: _______________
- Date: _______________