NEXUS Cloud-Native Microservices Platform

NEXUS is a full-stack cloud-native microservices platform designed to demonstrate modern software engineering, distributed systems, containerization, orchestration, observability, security, automated testing, and CI/CD practices.

Project Status

🚧 Currently Under Development

NEXUS is being developed incrementally through a structured software development lifecycle that includes:

• Requirements analysis
• System architecture
• Technical design
• User experience design
• Security design
• Testing strategy
• Deployment strategy
• Development planning
• Incremental implementation
• Automated testing
• Containerization
• Kubernetes orchestration
• Observability
• CI/CD automation
• Security validation
• Final portfolio demonstration

---

🚧 Current Development Progress

Documentation

• Requirements
• System Architecture
• Database Architecture
• Technical Design
• Security Design
• Testing Strategy
• Deployment Strategy
• Roadmap
• User Experience Flow

Database

• PostgreSQL Infrastructure
• SQLAlchemy Base Models
• Operational Governance Models
• Operations Platform Models
• Identity Models
• Enterprise Data Generator

Backend

• FastAPI REST APIs
• Swagger Documentation

Frontend

• React Dashboard

Cloud Native

• Docker Compose
• Kubernetes
• CI/CD
• Observability

---

Planned Technology Stack

Frontend

• React
• TypeScript
• Vite

API Gateway

• Node.js
• TypeScript
• Express

Backend Services

• Python
• FastAPI
• SQLAlchemy
• Alembic
• Pydantic

Data and Asynchronous Processing

• PostgreSQL
• Redis
• Celery

Containerization and Orchestration

• Docker
• Docker Compose
• Kubernetes

Observability

• Prometheus
• Grafana
• OpenTelemetry
• Jaeger

Testing

• pytest
• Vitest
• React Testing Library
• Playwright

CI/CD and Security

• GitHub Actions
• Ruff
• mypy
• ESLint
• Gitleaks
• Trivy
• pip-audit
• npm audit

Planned Platform Capabilities

NEXUS will provide:

• Secure user authentication
• Role-based access control
• Service registration and management
• Asynchronous service-health monitoring
• Incident management
• Incident lifecycle tracking
• Notification processing
• Background task processing
• API Gateway routing
• Full-stack React user interface
• Containerized deployment
• Kubernetes orchestration
• Horizontal scaling
• Self-healing workloads
• Rolling updates
• Structured logging
• Metrics collection
• Operational dashboards
• Distributed tracing
• Automated testing
• Continuous integration
• Security scanning

Project Documentation

Detailed engineering documentation is maintained in the docs/requirements directory.

The documentation includes:

• Requirements
• Architecture
• Technical Design
• User Experience Flow
• Security Design
• Testing Strategy
• Development Plan and Implementation Roadmap
• Deployment Strategy

Development Approach

NEXUS is being developed incrementally.

Each major capability follows a structured engineering workflow:

REQUIREMENT
    │
    ▼
GITHUB ISSUE
    │
    ▼
FEATURE BRANCH
    │
    ▼
IMPLEMENTATION
    │
    ▼
TESTING
    │
    ▼
COMMIT
    │
    ▼
PULL REQUEST
    │
    ▼
CI VALIDATION
    │
    ▼
MERGE

---

🏗️ Enterprise Domain Architecture

Rather than modeling unrelated database tables, the NEXUS Cloud-Native Microservices Platform organizes its data into cohesive business domains. This mirrors how large enterprise software systems are designed, where each domain represents a distinct area of responsibility within the platform.

The project is intentionally developed in phases, with each domain becoming a self-contained subsystem that can evolve independently while remaining connected through well-defined relationships.

---

Service Catalog

The Service Catalog represents the applications, APIs, and microservices managed by the platform. Nearly every operational record ultimately relates back to a service.

Models

• Service

Responsibilities:

• Application registry
• Service ownership
• Business metadata
• Environment information
• Dependency tracking

---

Operational Governance

The Operational Governance domain manages the lifecycle of production incidents and operational risk.

Models

• Incident
• Issue
• Change
• RiskAssessment

Responsibilities:

• Incident management
• Root cause tracking
• Change management
• Operational risk analysis
• Corrective action tracking

---

Operations Platform

The Operations Platform records everything occurring within the production environment.

Models

• Deployment
• AuditEvent
• Notification
• MaintenanceWindow

Responsibilities:

• Software deployments
• Production audit history
• Operational notifications
• Planned maintenance scheduling
• Production activity timeline

---

Monitoring & Observability

This domain provides continuous visibility into platform health and performance.

Models

• ApiHealth
• Metric

Responsibilities:

• Health monitoring
• Performance metrics
• Availability reporting
• Service status
• Operational dashboards

---

Identity & Access Management (Future Release)

Identity will be implemented as a dedicated subsystem rather than mixed into operational functionality. This reflects how enterprise platforms typically separate authentication and authorization concerns from operational workflows.

Planned Models

• User
• Role
• Permission
• ServiceOwnership

Responsibilities:

• Authentication
• Authorization
• Role-Based Access Control (RBAC)
• Service ownership
• Permission management

---

🏗️ Overall Domain Architecture

Service
│
├── Operational Governance
│   ├── Incident
│   ├── Issue
│   ├── Change
│   └── RiskAssessment
│
├── Operations Platform
│   ├── Deployment
│   ├── AuditEvent
│   ├── Notification
│   └── MaintenanceWindow
│
├── Monitoring & Observability
│   ├── ApiHealth
│   └── Metric
│
└── Identity & Access (Future)
    ├── User
    ├── Role
    ├── Permission
    └── ServiceOwnership

---

Development Roadmap

The project is intentionally developed using an enterprise-inspired lifecycle.

Phase 1

• Database architecture
• SQLAlchemy models
• PostgreSQL schema
• Alembic migrations

Phase 2

• Enterprise data generation
• Approximately one million interconnected records
• Production-scale dataset validation

Phase 3

• FastAPI REST APIs
• Swagger documentation
• Repository and service layers

Phase 4

• React enterprise dashboard
• Operational reporting
• Monitoring and analytics

Phase 5

• Security
• Authentication
• RBAC
• Production deployment
• Kubernetes