Enterprise Server Node Engineering
1. Core Purpose
The Enterprise Server Node is the brain and governor of your cluster. It doesn’t carry the heavy compute loads (that’s for Jetsons and specialized Pi workers), but it orchestrates, logs, secures, and administrates.
- Leadership role: Master controller, coordinator, security gatekeeper.
- Reliability role: Extreme uptime, redundancy-aware, and the first node to bring up during bootstrapping.
- Governance role: Routes all access (human + AI + IoT) into structured workflows.
2. Hardware Stack
Since you’re building with Raspberry Pi 5 + Jetsons, the Enterprise Node should be the Pi 5 (16GB, SSD, cooler).
- Board: Raspberry Pi 5, 16GB RAM
- Storage: 1TB+ SSD (NVMe over USB 3 or PCIe adapter)
- Cooling: Tower cooler + active fan
- Networking:
- Gigabit Ethernet → LAN switch (backbone for Jetsons + Pi nodes)
- Optional WiFi (disabled by default for security)
- Power: UPS backup or PoE hat (so a failure doesn’t take it down)
- Extras: NFC reader + OLED display for access diagnostics
3. Software Layering
Think three rings: Host OS → Middleware → Governance Framework.
A. Host OS
- Raspberry Pi OS (64-bit) or Ubuntu Server 24.04 ARM
- Hardened with:
- UFW firewall + fail2ban
- Root login disabled
- Only SSH via keys
B. Middleware
This is what makes it an Enterprise-class orchestrator:- K3s (lightweight Kubernetes) → cluster orchestration
- NATS or RabbitMQ → message/event bus
- Mosquitto (MQTT) → IoT + sensor data broker
- PostgreSQL / MariaDB → system metadata + ledger
- Vault / Keycloak → secrets & identity
C. Governance Framework
This is your AI + orchestration layer:
- Your .com here... Governor (your system) → routes jobs to Jetsons or Pi workers
- Extreme cost accounting services → every penny/job logged in DB
- Node-RED or custom dashboard → visual flow control
- Serilog + Loki + Grafana → telemetry + dashboards
- SignalR hub → real-time comms to phones + rings
4. Networking Role
The Enterprise Node manages the enterprise LAN domain:
- Assigns static IPs to Jetsons + other Pis
- Hosts DNS + DHCP services for the subnet
- Secure VPN (WireGuard) for remote access
- Oversees segmentation:
- Green Zone → IoT + Ag sensors
- Blue Zone → Shop equipment + trades
- Red Zone → Internet uplink + firewall
5. Governance & Failover
- Leader election: If Enterprise Node fails, a backup Pi can assume leadership (k3s HA mode).
- Failover: SSD auto-sync to secondary node with rsync + cron + ZFS snapshots.
- Notifications: Twilio/SignalR alerts to your phone + Brad’s system.
6. Practical Workflow Example
- You scan your Empire Ring → Enterprise Node authenticates via NFC.
- Enterprise Node triggers a job orchestration request.
- Jobs dispatched:
- Jetson 1: AI Model Inference
- Jetson 2: Vision + sensor processing
- Jetson 3: AgTech automation
- Enterprise Node logs transaction → cost accounting DB.
- Dashboard updates in real-time → your phone shows “Job completed, profit +$X.”
7. Naming of Components and Functions.
- Pi-1 Enterprise Node → “Enterprise” (Leadership)
- This node is never overloaded with heavy compute—it is your captain’s chair.
- Workers like “Communications” (comms), “Engineering", "Administration" Top Level, "Management" handle tasks beneath it.
