What is the Multi-tenant Enterprise Atlas v0.1?

The Multi-tenant Enterprise Atlas v0.1 is a comprehensive, versioned reference architecture created by Cloud School that organizes all Managed Service Provider (MSP) and Cloud Service Provider (CSP) technology domains into 12 hierarchical layers aligned with ISO/OSI Layers 1–7 and NIST SP 800-207 Zero Trust standards, pairing every architectural capability with production-ready open-source tools.

How does the Atlas enforce Zero Trust and Multi-Tenant Isolation?

The Atlas separates Control Plane governance from Tenant Data Planes across every layer—using SPIFFE/SPIRE cryptographic workload identities, Open Policy Agent (OPA) policy-as-code, Cilium/Istio mTLS service meshes, vCluster/OpenStack tenant namespaces, and hardware-rooted TPM 2.0/HSM attestation.

Which open-source diagram formats can be exported from the Atlas?

Architects can inspect and download the complete taxonomy in Mermaid Mindmap (.mmd), Mermaid Architecture Flowchart (.mmd), PlantUML Mindmap (.puml), Graphviz DOT (.dot), Draw.io / diagrams.net XML (.drawio), Structurizr C4 DSL (.dsl), Canonical JSON (.json), and rendered SVG (.svg).

v0.1 — Living Architecture Reference NIST SP 800-207 Zero Trust ISO/OSI L1–L7 Aligned

Multi-tenant Enterprise Atlas

An all-inclusive, hierarchical reference blueprint of the modern Managed Service Provider (MSP) and Cloud Service Provider (CSP) multi-tenant technology stack—spanning physical datacenter & quantum hardware up through Zero Trust control planes, MLOps pipelines, and GRC compliance, paired with open-source/free enterprise implementations.

Architectural Layers

Stack Capabilities

100%

Open Source / FOSS

Diagram Formats

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Interactive Mermaid Mindmap & Open-Source Diagram Exports

Render the Multi-tenant Enterprise Atlas live as a Mermaid Mindmap or Layered Flowchart, inspect the source syntax, or export in 8 open-source diagram formats.

100%

Download Open-Source Architecture Formats (Full 12-Layer Canonical Model)

Control Plane vs. Data Plane

Multi-Tenant Isolation Model

Enterprise MSP/CSP platforms enforce strict tenant isolation across every architectural tier: dedicated hardware/TPM roots at Layer 0, VXLAN/Geneve/BGP EVPN overlays at Layer 1, isolated hypervisor/vCluster namespaces at Layers 2–3, and per-tenant cryptographic KMS keys and RBAC realms at Layer 5.

NIST SP 800-207 & ISO/OSI

Zero Trust & Standards Alignment

Implicit perimeter trust is eliminated. Every north-south and east-west request is continuously authenticated and authorized via SPIFFE/SPIRE workload identities, mutual TLS (mTLS), and Open Policy Agent (OPA) policy enforcement points spanning ISO/OSI Layers 1 through 7.

Open-Source First Reference

Vendor-Neutral FOSS Blueprint

Every capability in Version 0.1 pairs enterprise architectural patterns with battle-tested open-source or free software—enabling sovereign cloud builders, MSP architects, and platform engineers to avoid proprietary lock-in while maintaining full auditability.