Add configurable structured logging

Adds a leveled JSON logger (error/warn/info/verbose/debug, controlled via
LOG_LEVEL) wired into the Express API (access log, error middleware,
crash handlers, memory heartbeat) and the Next.js server (page-request
proxy, instrumentation crash handlers, heartbeat). LOG_LEVEL is exposed
through compose.yaml, and both services now rotate their Docker logs
(json-file, 20m x 10 files) instead of growing unbounded. Intended to
capture long-running diagnostic data for the intermittent 502s seen on
the Docker host.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Julian Appel 2026-08-06 19:45:39 +02:00
parent f26c000007
commit ea3c02cd6b
12 changed files with 317 additions and 6 deletions

8
src/instrumentation.ts Normal file
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@ -0,0 +1,8 @@
export async function register() {
if (process.env.NEXT_RUNTIME !== "nodejs") {
return;
}
const { registerNodeInstrumentation } = await import("./instrumentation-node");
registerNodeInstrumentation();
}