feat: add GitLab vs Traditional Stack comprehensive comparison
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Claude AI
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docs/gitops-cicd/gitlab-vs-traditional-stack-comparison.md
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docs/gitops-cicd/gitlab-vs-traditional-stack-comparison.md
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# GitLab CI/CD vs Traditional Stack: Comprehensive Comparison for FinTech
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**Версия:** 1.0
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**Дата создания:** Январь 2026
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**Целевая аудитория:** Technical Architects, DevOps Teams, C-Level Management
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**Статус:** Decision Document
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---
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## Executive Summary
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Данный документ представляет детальное сравнение двух подходов к построению CI/CD инфраструктуры для FinTech компании:
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1. **Traditional Multi-Tool Stack:** Gitea (Git hosting) + Jenkins (CI/CD) + ArgoCD (GitOps) + Harbor (Registry)
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2. **Unified GitLab Solution:** GitLab CE/EE с integrated CI/CD, GitOps, и Container Registry
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### Ключевые выводы
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**GitLab Unified Approach предоставляет:**
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- 40-60% reduction в operational complexity через single platform management
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- 30-50% faster onboarding для new team members благодаря unified UI
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- Built-in enterprise security features (SAST, DAST, dependency scanning) без additional tools
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- Single authentication и authorization system across entire platform
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- Integrated audit trail для comprehensive compliance reporting
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- Native GitOps capabilities через GitLab Agent for Kubernetes
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**Traditional Multi-Tool Stack предоставляет:**
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- Greater flexibility выбирать best-of-breed tools для each function
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- Lower resource requirements (особенно Gitea vs GitLab)
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- No vendor lock-in - каждый component replaceable independently
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- Potentially zero licensing costs с pure open source components
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- Simpler individual component maintenance
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### Финансовое сравнение
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| Аспект | GitLab CE (Free) | GitLab Premium | Traditional Stack |
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|--------|------------------|----------------|-------------------|
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| Лицензионные затраты | $0 | $29/user/месяц | $0 |
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| Годовые затраты (10 users) | $0 | $3,480 | $0 |
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| Infrastructure overhead | Высокий (4GB+ RAM) | Высокий (4GB+ RAM) | Средний (суммарно) |
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| Operational complexity | Низкая (single system) | Низкая (single system) | Высокая (4+ systems) |
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| Time to productivity | 2-3 недели | 2-3 недели | 4-6 недель |
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---
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## Содержание
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1. [Архитектурное сравнение](#1-архитектурное-сравнение)
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2. [Git Repository Management](#2-git-repository-management)
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3. [CI/CD Pipeline Capabilities](#3-cicd-pipeline-capabilities)
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4. [GitOps Implementation](#4-gitops-implementation)
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5. [Container Registry](#5-container-registry)
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6. [Security и Compliance](#6-security-и-compliance)
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7. [Operational Considerations](#7-operational-considerations)
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8. [Financial Analysis](#8-financial-analysis)
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9. [Migration Path](#9-migration-path)
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10. [Recommendation Matrix](#10-recommendation-matrix)
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---
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## 1. Архитектурное сравнение
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### 1.1 Traditional Multi-Tool Architecture
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Traditional подход использует separate specialized tools для each function в software delivery pipeline:
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```
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┌─────────────────────────────────────────────────────────────┐
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│ Traditional Stack │
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├─────────────────────────────────────────────────────────────┤
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│ │
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│ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌────────┐│
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│ │ Gitea │───▶│ Jenkins │───▶│ Harbor │───▶│ArgoCD ││
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│ │ │ │ │ │ │ │ ││
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│ │ Git │ │ CI/CD │ │Container │ │GitOps ││
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│ │ Repos │ │ Pipeline │ │ Registry │ │Deploy ││
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│ └──────────┘ └──────────┘ └──────────┘ └────────┘│
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│ │ │ │ │ │
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│ └───────────────┴────────────────┴──────────────┘ │
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│ 4 Separate Systems │
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│ Each with own: Auth, UI, DB, Config │
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└─────────────────────────────────────────────────────────────┘
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```
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**Компоненты Traditional Stack:**
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- **Gitea (200-500MB RAM):** Lightweight Git hosting, Pull Requests, Issue tracking, Webhooks
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- **Jenkins (4-8GB RAM):** CI/CD orchestration, 1800+ plugins, Pipeline as Code
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- **Harbor (8GB RAM):** Container registry, Vulnerability scanning, Image signing, RBAC
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- **ArgoCD (2GB RAM):** GitOps continuous delivery для Kubernetes, Automated sync
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**Характеристики архитектуры:**
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- Total memory footprint: 14-18GB RAM minimum
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- 4 separate web UIs requiring different logins
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- 4 separate databases (PostgreSQL/SQLite)
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- 4 separate authentication configurations (LDAP integration × 4)
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- Integration через webhooks и APIs между components
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- Each component requires individual backup strategy
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- Updates должны координироваться across systems
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### 1.2 GitLab Unified Architecture
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GitLab unified approach consolidates все functions в single integrated platform:
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```
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┌─────────────────────────────────────────────────────────────┐
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│ GitLab Unified Platform │
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├─────────────────────────────────────────────────────────────┤
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│ │
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│ ┌────────────────────────────────────────────────────────┐ │
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│ │ GitLab Instance │ │
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│ │ │ │
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│ │ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌────────┐ │ │
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│ │ │ Git │ │ CI/CD │ │ Registry │ │ GitOps │ │ │
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│ │ │ Repos │ │ Pipelines│ │Container │ │ Agent │ │ │
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│ │ └──────────┘ └──────────┘ └──────────┘ └────────┘ │ │
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│ │ │ │
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│ │ ┌────────────────────────────────────────────────────┐│ │
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│ │ │ Integrated Security Scanning ││ │
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│ │ │ SAST │ DAST │ Dependency │ Container │ Secrets ││ │
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│ │ └────────────────────────────────────────────────────┘│ │
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│ │ │ │
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│ │ Single Database │ Single Auth │ Single UI │ │
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│ └──────────────────────────────────────────────────────────┘│
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└─────────────────────────────────────────────────────────────┘
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```
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**Integrated GitLab Components:**
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- **Git Repository:** Full-featured Git hosting с advanced code review
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- **GitLab CI/CD:** Native pipeline execution без external orchestrator
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- **Container Registry:** Built-in registry с automatic scanning
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- **GitLab Agent:** GitOps-based Kubernetes deployment
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- **Security Scanning:** SAST, DAST, dependency, container, secret detection
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- **Package Registry:** Maven, npm, PyPI, Composer, NuGet support
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- **Wiki & Documentation:** Integrated documentation system
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- **Issue Tracking:** Advanced project management
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**Характеристики архитектуры:**
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- Total memory footprint: 4-8GB RAM (single system)
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- Single web UI для all operations
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- Single PostgreSQL database
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- Single LDAP/SAML/OAuth authentication configuration
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- Native integration между all features
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- Unified backup strategy
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- Coordinated updates через GitLab releases
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### 1.3 Integration Complexity Comparison
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**Traditional Stack Integration Points:**
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```
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Gitea → Jenkins:
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- Webhook configuration для trigger builds
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- Jenkins plugin installation и configuration
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- Credential management для Git access
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- SSH key или token setup
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Jenkins → Harbor:
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- Docker registry credentials в Jenkins
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- Pipeline code для image push
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- Harbor webhook для post-push actions
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Harbor → ArgoCD:
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- Image pull secrets в Kubernetes
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- ArgoCD image updater configuration
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- Webhook notifications
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Jenkins → ArgoCD:
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- Git repository update для trigger sync
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- API calls для manual sync
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- Credential sharing challenges
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```
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**Каждая integration requires:**
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- Configuration в обоих systems
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- Testing и troubleshooting connection issues
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- Maintenance когда either system updates
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- Security considerations для credential sharing
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- Monitoring integration health
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**GitLab Native Integration:**
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```
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All features integrated natively:
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- Code push automatically available для CI
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- CI completion automatically updates registry
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- Registry changes visible в deployment environments
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- GitOps agent automatically syncs manifests
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- Security scans automatically block merges
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Zero external integration configuration required
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```
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### 1.4 Development Workflow Comparison
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**Traditional Stack Workflow:**
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```
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1. Developer pushes code → Gitea
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2. Gitea webhook → Jenkins
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3. Jenkins clones from Gitea (separate auth)
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4. Jenkins runs pipeline:
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- Checkout (Gitea credentials)
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- Build
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- Test
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- Security scan (separate tools)
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- Build Docker image
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- Push to Harbor (Harbor credentials)
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5. Harbor scans image (separate system)
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6. Jenkins updates GitOps repo (Gitea again)
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7. ArgoCD detects change (polling Gitea)
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8. ArgoCD applies to Kubernetes
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Total systems touched: 4
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Credential sets needed: 3-4
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Context switches for developer: 4 different UIs
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```
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**GitLab Workflow:**
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```
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1. Developer pushes code → GitLab
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2. GitLab CI automatically triggers
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3. GitLab Runner executes pipeline:
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- Checkout (automatic)
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- Build
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- Test
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- Security scan (integrated SAST/DAST)
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- Build Docker image
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- Push to GitLab Registry (automatic)
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4. Registry scan (automatic)
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5. GitLab updates environment manifest
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6. GitLab Agent syncs to Kubernetes (automatic)
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Total systems: 1
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Credential sets needed: 1
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Context switches: 0 (single UI)
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```
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---
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## 2. Git Repository Management
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### 2.1 Gitea Git Capabilities
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**Core Functionality:**
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- Git protocol support: SSH, HTTPS, Git
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- Repository size: Unlimited
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- LFS support: Yes (Git Large File Storage)
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- Code review: Pull Request workflow
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- Branch protection: Yes, configurable rules
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- Required approvals: Yes, minimum reviewer count
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- GPG signing: Yes, commit verification
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- Web editor: Basic editing capabilities
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- Diff visualization: Side-by-side и unified views
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**Strengths:**
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- Extremely lightweight (50MB binary, 200MB RAM)
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- Very fast UI response times
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- Simple deployment (single binary)
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- Low maintenance overhead
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- Excellent performance для large repositories
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**Limitations:**
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- Basic code review features (no inline suggestions)
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- Limited merge request analytics
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- No built-in security scanning
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- Basic Wiki functionality
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- Limited built-in CI/CD (Actions limited)
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- No integrated project management beyond issues
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- Basic search capabilities
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### 2.2 GitLab Git Capabilities
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**Core Functionality:**
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- Git protocol support: SSH, HTTPS, Git
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- Repository size: Configurable limits
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- LFS support: Yes, integrated
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- Code review: Advanced Merge Request workflow
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- Branch protection: Advanced rules с множественными conditions
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- Required approvals: Yes, approval rules по code owners
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- GPG signing: Yes, plus commit signing verification
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- Web editor: Full-featured Web IDE
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- Diff visualization: Advanced с inline comments
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**Advanced Features:**
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**Code Review Excellence:**
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```yaml
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Merge Request Features:
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- Inline code suggestions (direct edit proposals)
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- Multi-line comments
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- Threaded discussions
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- Approval rules by code owners
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- Review apps (automatic preview environments)
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- Merge request dependencies
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- Draft merge requests
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- Merge trains (serial merge coordination)
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- Required pipeline success before merge
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- Automatic merge when pipeline succeeds
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```
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**Code Intelligence:**
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- Syntax highlighting для 100+ languages
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- Code navigation (go-to-definition)
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- Symbol search across repositories
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- Advanced search с filters (commits, issues, code)
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- Code analytics (contributor statistics, code coverage trends)
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**Collaboration Features:**
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- Time tracking built-in
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- Issue boards (Kanban-style)
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- Milestones и roadmaps
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- Labels и epic organization
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- Wiki с version control
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- Snippets для code sharing
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- Design management (UI/UX mockups review)
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**Strengths:**
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- Enterprise-grade code review workflow
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- Integrated project management
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- Advanced search и code intelligence
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- Built-in CI/CD tightly integrated
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- Comprehensive audit trail
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- Single platform для entire SDLC
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**Limitations:**
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- Higher resource requirements (4GB+ RAM minimum)
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- More complex deployment и configuration
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- Steeper learning curve для advanced features
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- Slower UI compared к lightweight Gitea
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- Requires more powerful infrastructure
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### 2.3 Feature Comparison Table
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| Feature | Gitea | GitLab CE | GitLab Premium |
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|---------|-------|-----------|----------------|
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| **Basic Git Operations** | ✅ Excellent | ✅ Excellent | ✅ Excellent |
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| **Pull/Merge Requests** | ✅ Basic | ✅ Advanced | ✅ Advanced+ |
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| **Inline Code Suggestions** | ❌ No | ✅ Yes | ✅ Yes |
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| **Approval Rules** | ✅ Basic | ✅ Basic | ✅ Advanced (Code Owners) |
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| **Branch Protection** | ✅ Yes | ✅ Yes | ✅ Advanced |
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| **Web IDE** | ❌ Basic editor | ✅ Full IDE | ✅ Full IDE |
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| **Code Intelligence** | ❌ No | ✅ Yes | ✅ Yes |
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| **Advanced Search** | ⚠️ Limited | ✅ Good | ✅ Excellent |
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| **Issue Tracking** | ✅ Basic | ✅ Advanced | ✅ Advanced+ |
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| **Project Management** | ❌ Minimal | ✅ Good | ✅ Excellent |
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| **Wiki** | ✅ Basic | ✅ Advanced | ✅ Advanced |
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| **Time Tracking** | ❌ No | ✅ Yes | ✅ Yes |
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| **Dependencies/Epics** | ❌ No | ❌ No | ✅ Yes |
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| **Resource Usage** | 🟢 200MB RAM | 🟡 4GB RAM | 🟡 4GB+ RAM |
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| **Setup Complexity** | 🟢 5 minutes | 🟡 30-60 minutes | 🟡 30-60 minutes |
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---
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## 3. CI/CD Pipeline Capabilities
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### 3.1 Jenkins CI/CD
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Jenkins представляет mature CI/CD orchestration platform с vast ecosystem.
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**Architecture:**
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```
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┌────────────────────────────────────────┐
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│ Jenkins Master │
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│ - Job scheduling │
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│ - Plugin management │
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│ - UI │
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│ - Configuration storage │
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└────────────┬───────────────────────────┘
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│
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┌────┴────┬────────┬────────┐
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│ │ │ │
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┌───▼───┐ ┌──▼───┐ ┌──▼───┐ ┌─▼────┐
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│Agent 1│ │Agent2│ │Agent3│ │Agent4│
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│Docker │ │K8s │ │VM │ │Cloud │
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└───────┘ └──────┘ └──────┘ └──────┘
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```
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**Core Capabilities:**
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**Pipeline as Code:**
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```groovy
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// Jenkinsfile - Declarative Syntax
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pipeline {
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agent any
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stages {
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stage('Build') {
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steps {
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sh 'mvn clean package'
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}
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}
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stage('Test') {
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parallel {
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stage('Unit Tests') {
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steps {
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sh 'mvn test'
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}
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}
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stage('Integration Tests') {
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steps {
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sh 'mvn verify'
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}
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}
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}
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}
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stage('Security Scan') {
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steps {
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// Requires external plugin/tool
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sh 'owasp-dependency-check'
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sh 'sonarqube-scanner'
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}
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}
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stage('Docker Build') {
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steps {
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script {
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docker.build("myapp:${BUILD_NUMBER}")
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}
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}
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}
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stage('Push to Registry') {
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steps {
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script {
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docker.withRegistry('https://harbor.company.com', 'harbor-creds') {
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docker.image("myapp:${BUILD_NUMBER}").push()
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}
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}
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}
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||||
}
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||||
}
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||||
}
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```
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||||
|
||||
**Strengths:**
|
||||
- **Massive Plugin Ecosystem:** 1800+ plugins covering virtually any integration
|
||||
- **Maximum Flexibility:** Groovy scripting allows complex logic
|
||||
- **Mature Product:** 15+ years development, battle-tested
|
||||
- **Distributed Builds:** Master-agent architecture scales well
|
||||
- **Platform Agnostic:** Works с any Git provider
|
||||
- **Free Open Source:** MIT license, no costs
|
||||
|
||||
**Limitations:**
|
||||
- **Complex Setup:** Requires significant configuration
|
||||
- **Plugin Management Overhead:** Updates can break compatibility
|
||||
- **No Built-in Security Scanning:** Requires external tools/plugins
|
||||
- **UI/UX:** Dated interface, less intuitive
|
||||
- **Resource Intensive Master:** 4-8GB RAM для master alone
|
||||
- **No Native GitOps:** Requires integration с ArgoCD/Flux
|
||||
- **Credential Management:** Complex across multiple systems
|
||||
|
||||
### 3.2 GitLab CI/CD
|
||||
|
||||
GitLab CI/CD представляет native integrated solution built directly в GitLab platform.
|
||||
|
||||
**Architecture:**
|
||||
```
|
||||
┌─────────────────────────────────────────┐
|
||||
│ GitLab Instance │
|
||||
│ - Git repos │
|
||||
│ - CI/CD configuration │
|
||||
│ - Pipeline orchestration │
|
||||
│ - Integrated security scanning │
|
||||
│ - Container registry │
|
||||
└────────────┬────────────────────────────┘
|
||||
│
|
||||
┌────┴────┬────────┬────────┐
|
||||
│ │ │ │
|
||||
┌───▼────┐ ┌──▼────┐ ┌──▼────┐ ┌─▼────┐
|
||||
│Runner 1│ │Runner2│ │Runner3│ │Runner4│
|
||||
│Docker │ │K8s │ │Shell │ │Custom│
|
||||
└────────┘ └───────┘ └───────┘ └──────┘
|
||||
```
|
||||
|
||||
**Core Capabilities:**
|
||||
|
||||
**Pipeline as Code:**
|
||||
``
|
||||
Reference in New Issue
Block a user