EDGE RUNTIME & CONTROL PLANE

Nodra

The open edge runtime that keeps sites running when the cloud doesn't: local MQTT/HTTP ingress, a durable store-and-forward WAL, device twins, and edge app reconciliation — offline-first by design.

MQTT 3.1.1 HTTP ingress Modbus TCP/RTU Apache-2.0

Get the highlights.

• v0.2.11
  Current release — adds Modbus RTU and J1939 industrial transports
• 262
  Lettered fleet sites simulated end-to-end by nodra-sim
• 2,0003
  Activity entries retained live in the console Logs ring
• 655324
  Non-root UID/GID enforced by the default Kubernetes manifests
• 65
  Documented trust boundaries across edge, control plane, and console

• ❓

  FAQ

  Questions people evaluating Nodra actually ask, before they've decided to adopt it.

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• 🛠️

  Troubleshooting

  Real operational issues, with the documented fix — not a generic checklist.

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• ▶️

  Demo and user walkthrough

  A full user-demo path: control plane console, A–Z fleet simulation, and verification scripts.

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• 🏭

  Production

  Single-replica file mode, Postgres revision checks, TLS, backup/restore, and known limits.

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• ✅

  Qualification

  Software matrix via make qualify versus operator-signed soak and restore drills.

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• 🧩

  Architecture

  nodra-server is the management/control plane, nodrad is the edge runtime, nodractl is the operator CLI.

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Nodra is an Apache-2.0 edge runtime and control plane from Zyvor. It gives remote sites a local MQTT/HTTP ingress, durable store-and-forward, local routes, device twins, edge application reconciliation, fleet health, replayable dead letters and a clean web control plane. Edge sites are offline-first: WAN loss is a first-class operating mode, not a degraded one.

For the full project overview — architecture diagram, feature highlights, quick start, build instructions and licensing — see the README on GitHub.

What's included today

• 📡 MQTT 3.1.1 edge ingress
• 🌐 HTTP ingress
• 💾 Offline-first WAL spool
• 🔀 Local routes
• 👥 Device twins
• ✉️ Dead-letter queue with replay
• 🐳 Docker app reconciliation
• ☸️ Kubernetes-ready (Helm, Kustomize)

Source code, releases and issue tracking live in the zyvorai/nodra GitHub repository.

1. v0.2.1 adds Modbus RTU and J1939 industrial transports on top of the v0.2.0 base. See Industrial protocols. ↩
2. nodra-sim seeds and continuously drives up to 26 lettered demo sites (A–Z). See the Demo walkthrough. ↩
3. Console activity is an in-memory ring capped at 2000 entries, intentionally non-durable. See Architecture — Activity log. ↩
4. Default manifests run as non-root UID/GID 65532 with a read-only root filesystem and all capabilities dropped. See Security model — Kubernetes. ↩
5. Six trust boundaries are documented: device→nodrad, nodrad→control plane, operator→API, operator→console, control plane→webhook, and simulator→control plane. See Security model — Trust boundaries. ↩