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Chapter 17 — Maintenance & Patching
17.1 Current State and Scope As-built patching is unmanaged: no unattended-upgrades confirmation,...
Chapter 15 — Capacity & Scaling
15.1 Philosophy and Scope Capacity planning at this fleet size is not autoscaling — it is knowing...
Chapter 14 — Backup & Disaster Recovery
14.1 Current State and Scope As of 2026-07-18, tier 1 (DigitalOcean Backups) is enabled on the dr...
Chapter 13 — Audit Infrastructure
13.1 Purpose and Distinction from Operational Logging This chapter specifies the evidentiary tier...
Chapter 12 — Observability
12.1 Current State and Scope Prometheus + Grafana 13.1.0 + nginx/TLS on monitor-servers, serving...
Chapter 11 — Supply-Chain Controls
11.1 Current State and Scope As-built supply-chain posture is minimal but deliberately clean so f...
Chapter 10 — Infrastructure as Code
10.1 Current State and Scope As of 2026-07-18 no IaC exists: all resources to date (droplets, DNS...
Chapter 9 — Identity & Access
9.1 Current State and Scope As of 2026-07-18 no IdP integration exists: Grafana and BookStack run...
Chapter 8 — Secrets Management
8.1 Current State and Scope As of 2026-07-18 no secrets manager is deployed. Credential state is ...
Chapter 7 — Storage & Data Layer
7.1 Data Layer Overview Three engines serve the Platform, each with a distinct role; nothing else...
Chapter 6 — Compute & Application Layer
6.1 Compute Model The Platform runs on a small fixed droplet fleet with containerized workloads u...
Chapter 5 — TLS & Edge Security
5.1 Edge Model Every public surface is fronted by an nginx reverse proxy terminating TLS on the d...
Chapter 4 — DNS & Domain Architecture
4.1 Domain and Registrar sbsdash.com is the sole Platform domain. Registrar-level state is a secu...
Chapter 3 — Network Architecture
3.1 VPC Design Target: two dedicated VPC networks, one per environment, both in NYC2, no peering:...
Chapter 2 — Infrastructure Overview
2.1 DigitalOcean Account Structure The Platform operates under a single dedicated DigitalOcean ac...
Chapter 1 — Introduction & Scope
1.1 Document Purpose This document (LH-SBS-INF-001) is the authoritative infrastructure specifica...