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Phase 5 Architecture - Ecosystem Expansion

Overview

Phase 5 introduces enterprise-grade capabilities that expand Nebula into a full ecosystem platform, enabling large organizations to deploy, scale, and manage Nebula across complex infrastructure.

Key Features

1. Enterprise SSO & Identity Management

  • SAML 2.0 / OIDC integration (Okta, Azure AD, Ping Identity)
  • SCIM provisioning for automated user lifecycle
  • Role-based access control (RBAC) with fine-grained permissions
  • Audit logging for all authentication events
  • Multi-factor authentication (MFA) enforcement

2. Advanced Analytics & Observability

  • Real-time metrics collection (Prometheus/OpenTelemetry)
  • Distributed tracing across all Nebula services
  • Custom dashboards with Grafana integration
  • Anomaly detection and alerting
  • Usage-based billing and cost allocation

3. Multi-Cloud & Hybrid Deployment

  • Kubernetes-native deployment (Helm charts)
  • Support for AWS, GCP, Azure, and on-premises
  • Cross-region replication and failover
  • Edge computing capabilities
  • Infrastructure as Code (Terraform modules)

4. Enhanced Security & Compliance

  • End-to-end encryption (TLS 1.3, AES-256)
  • Secrets management (HashiCorp Vault integration)
  • SOC 2 Type II, ISO 27001, GDPR compliance
  • Data loss prevention (DLP) policies
  • Security Information and Event Management (SIEM) integration

Architecture Diagram

+------------------+     +------------------+
|   Identity       |     |   Analytics      |
|   Provider       |     |   Platform       |
| (Okta/Azure AD)  |     | (Prometheus/     |
+--------+---------+     |  Grafana)        |
         |               +--------+---------+
         |                        |
+--------v------------------------v---------+
|           Nebula API Gateway              |
|  (Authentication, Rate Limiting, Routing) |
+--------+----------------------------------+
         |
+--------v------------------------+
|       Nebula Core Services       |
|  +-----------------------------+ |
|  |  Workflow Engine            | |
|  |  Agent Orchestration        | |
|  |  Tool Management            | |
|  |  Memory & State             | |
|  +-----------------------------+ |
+--------+------------------------+
         |
+--------v------------------------+
|      Data & Infrastructure       |
|  +-----------------------------+ |
|  |  PostgreSQL (Primary)       | |
|  |  Redis (Cache)              | |
|  |  S3/Cloud Storage (Objects) | |
|  |  Message Queue (NATS/Kafka) | |
|  +-----------------------------+ |
+----------------------------------+

Deployment Models

Cloud-Native (Kubernetes)

  • Helm chart for one-command deployment
  • Horizontal Pod Autoscaler (HPA) based on CPU/memory
  • Persistent volumes for stateful services
  • Ingress controller with TLS termination

Hybrid / On-Premises

  • Air-gapped deployment support
  • Local identity provider integration
  • Custom certificate authority (CA)
  • Offline license activation

Technology Stack

  • Runtime: Rust (core), Node.js (API layer), Python (agent execution)
  • Database: PostgreSQL 15+, Redis 7+
  • Message Queue: NATS or Apache Kafka
  • Observability: Prometheus, Grafana, OpenTelemetry
  • Infrastructure: Kubernetes, Terraform, Docker
  • Security: HashiCorp Vault, Let's Encrypt, SPIFFE/SPIRE

Migration Path

Existing Nebula installations can upgrade to Phase 5 with:

  1. Database schema migration (backward compatible)
  2. Configuration file updates
  3. Identity provider setup
  4. Observability stack deployment

Detailed migration guides are available in the docs/migration/ directory.