Files
mesh-catalog/modules/mesh-catalog/prepare/index.ts
T
jschoubben 4258f01614 The catalogue prepares its own schema instead of migrating at start
It brought its schema up inside its runtime, on every start. That made a schema it could not reach a
crash loop rather than a stop, with the module graph keeping a gap and nothing saying so — which is
how a whole morning's builds went unrecorded. The mesh now prepares this module's state before it
starts this version and does not start it if that failed (novox/hq ADR 0135): the work moves to an
entrypoint the image names in MESH_PREPARE, beside the entrypoints it already names.

The reason it was at start — that a step blocking the apply would block the very apply bringing the
overlay up — stopped being true when a step's failure became its module's business rather than the
machine's (ADR 0136).
2026-09-28 15:40:28 +02:00

18 lines
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TypeScript

// The catalogue's state, brought to the shape this version needs (novox/hq ADR 0135).
//
// **The mesh runs this before the version that needs it, and does not start that version if it
// fails** — and the refusal reaches this module and nothing else on the machine
// (novox/hq ADR 0136). That is the whole difference from where this used to happen: at start, inside
// the runtime, a schema that could not be brought up was a crash loop, the graph kept a gap, and
// nothing anywhere said so.
//
// Nothing here connects to the broker. Preparation runs before the version that would use it, so
// there is nothing yet to talk to; the runtime's `prepare` mode imports this and awaits it, and this
// process exiting non-zero is how the host knows not to start the runtime.
import { Graph } from "../store.js";
const graph = Graph.fromEnv();
await graph.migrate();
console.log("[mesh-catalog] the module graph's schema is what this version needs");
await graph.close();