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fix(checkmk): detect empty monitoring collection, log permission hint + host_config probe

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Brückner
2026-06-04 15:04:19 +02:00
parent 789fe1f8e0
commit 9fba11ccd6
1 changed files with 26 additions and 6 deletions
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28
server.ts
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@ -758,12 +758,32 @@ async function startServer() {
if (name !== undefined && state !== undefined) hostnameToState.set(name, state); if (name !== undefined && state !== undefined) hostnameToState.set(name, state);
} }
// Diagnostic: log a sample so mismatches between config and monitoring IDs are visible if (hostnameToState.size === 0 && ipToHostname.size > 0) {
const cfgSample = [...ipToHostname.values()].slice(0, 3).join(', '); // Monitoring collection empty despite config hosts existing.
const monSample = [...hostnameToState.keys()].slice(0, 3).join(', '); // Likely cause: automation user lacks "Use monitoring" permission in CheckMK.
// Falling back: probe one host via /objects/host_config/{name} and log its raw extensions
// so we can identify which field carries the reachability state.
db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)') db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)')
.run(uid('log'), now, 'system', .run(uid('log'), now, 'system',
`CheckMK diagnostic — config hosts (${ipToHostname.size}): [${cfgSample}] | monitoring hosts (${hostnameToState.size}): [${monSample}]`); 'CheckMK: monitoring collection returned 0 hosts. The automation user may need ' +
'"Use monitoring" permission (Setup → Users → Roles). ' +
'Attempting per-host fallback via host_config endpoint.');
const firstHostname = [...ipToHostname.values()][0];
try {
const probeRes = await fetch(
`${CHECKMK_API_URL}/objects/host_config/${encodeURIComponent(firstHostname)}`,
{ headers }
);
if (probeRes.ok) {
const probeData = await probeRes.json();
const extJson = JSON.stringify(probeData?.extensions ?? {}).substring(0, 400);
db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)')
.run(uid('log'), now, 'system',
`CheckMK probe extensions for "${firstHostname}": ${extJson}`);
}
} catch { /* probe is best-effort */ }
}
} catch (err: any) { } catch (err: any) {
const msg = `CheckMK sync failed — could not fetch monitoring states: ${err?.message ?? err}`; const msg = `CheckMK sync failed — could not fetch monitoring states: ${err?.message ?? err}`;
console.error('[CheckMK]', msg); console.error('[CheckMK]', msg);