jochen 8738c02d00 nfs-server: export a share only to the nodes granted and wanting it, and never root's, a symlinked or nested backup, or an unmounted dataset
The review of #136 found a share could squash every client to root, be
judged at a symlink's name rather than its folder, sit inside or above a
backup repository deeper than one level, export an unmounted dataset's
empty folder, go to every address in the private network's range, and
stay exported after the module left. Each is now refused or closed, with
a test that reproduced it first:

- a folder owned by uid or gid 0 is refused;
- the path is resolved through symlinks and every check runs on the real
  folder, which the export line names;
- a share inside a backup repository (any parent) or holding one within
  four levels is refused, and a look cut short by its bound refuses;
- every line carries mp, or mp=<its filesystem's mount point>;
- a share goes only to the nodes this machine's grants setting names and
  whose mounts module wants it on the bus, at the lower access, at the
  roster's address inside the range; nothing without wants;
- the process is declared before its config, so on unassignment it finds
  the config gone, removes its export file and lets the shares go;
- confirm accepts the seat's string "true".
2026-10-08 20:20:05 +02:00

mesh-catalog

The Novox Mesh catalogue. The modules the mesh builds, provisions and runs — as manifests, one per module under modules/.

This is data, not a control-plane concern. The manifests describe what a module is: what it provides, what it requires, the seats it claims, the resources the host applies for it. The engine that reads them — parsing, eligibility resolution, sealing, declaration emission — lives in the control plane (novox/mesh-controller, internal/catalogue), which consumes this repository as a build source. The host (novox/mesh-host) applies the declarations the control plane emits. Neither is here.

What a module is, and is not

A module is one thing the mesh can run, named once, described completely by its manifest. A manifest names its image (pinned by digest), the resources the host owns for it (directories, files, the container, the private network it joins), what it requires from a provider and what it provides to consumers, and the sealed secrets it needs filled on the machine.

  • Core mesh components are not modules. The node host, the foundation, the control-plane contexts and the surfaces are the mesh itself; they ship as their own repositories (mesh-host, mesh-foundation, mesh-controller, mesh-surfaces, mesh-sdk), not from here.
  • Standalone applications are not here either. A larger application lives in its own repository with its manifest at the root, registered with the mesh as a build source (novox/hq ADR 0010). This repository holds the modules the mesh maintains as its shared catalogue; an application the mesh merely hosts keeps its manifest beside its own code.

So there is one home for the catalogue the mesh owns, and every application that runs on the mesh rather than being of it carries its own — both reach the pipeline the same way, as a registered source.

Layout

modules/<name>.json      one manifest per module

Flat, because the catalogue's shape carries no meaning: a module is found by its name and described by its manifest, and what relates two modules — a shared seat, a claim, a provider/consumer edge — is data inside the manifests, not a directory the tree encodes (novox/hq, the domain-grouping question closed in favour of seats, claims and tags).

The manifest contract

The shape a manifest must satisfy is owned by the control plane's catalogue engine and is what validates a manifest before a machine ever sees it — a stray key, a consumer contributing the wrong provision field, an image that nothing builds. That validation belongs with this repository and is being re-homed here from mesh-controller; until it is, the pipeline is the gate — it builds each module and refuses a manifest it cannot resolve.

Where the reasoning lives

Design and decisions are in novox/hq:

  • 02-DECISIONS/0002-everything-is-a-module.md — one unit, no second mechanism
  • 02-DECISIONS/0010-applications-live-in-their-own-repository.md — why applications are not here
  • 02-DECISIONS/0030-the-repository-structure.md — the repositories, and the open tier-4 question this repository answers
  • 03-DESIGN/00-as-is/10-module-catalogue.md — the catalogue's shape, and what it records
S
Description
Novox Mesh — the catalogue. Module manifests the mesh builds, provisions and runs. Data, not a control-plane concern.
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