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fix(checkmk): per-host state lookup via /objects/host/{name}, remove batch collection call

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Brückner
2026-06-04 15:27:21 +02:00
parent 15c4e3f6ac
commit 985178ea84
1 changed files with 34 additions and 49 deletions
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73
server.ts
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@ -740,51 +740,13 @@ async function startServer() {
return; return;
} }
// Step 2: fetch live monitoring state for all hosts in one call. // Step 2: for each device, look up its CheckMK hostname by IP, then query the
let hostnameToState: Map<string, number>; // individual monitoring object at /objects/host/{name} for the live state.
try { // The collection endpoint (/domain-types/host/collections/all) only returns
const monRes = await fetch( // minimal fields without state, so per-host calls are required.
`${CHECKMK_API_URL}/domain-types/host/collections/all`,
{ headers }
);
if (!monRes.ok) throw new Error(checkmkHttpHint(monRes.status));
const monData = await monRes.json();
// Log raw response so we can see the actual structure (first 500 chars).
db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)')
.run(uid('log'), now, 'system',
`CheckMK monitoring raw response: ${JSON.stringify(monData).substring(0, 500)}`);
hostnameToState = new Map<string, number>();
// Try multiple possible container keys used by different CheckMK versions.
const candidates: any[] = Array.isArray(monData?.value)
? monData.value
: Array.isArray(monData?.members)
? monData.members.map((m: any) => m?.value ?? m)
: [];
for (const host of candidates) {
const name: string | undefined = host?.id ?? host?.extensions?.name;
const state: number | undefined = host?.extensions?.state;
if (name !== undefined && state !== undefined) hostnameToState.set(name, state);
}
if (hostnameToState.size === 0 && ipToHostname.size > 0) {
db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)')
.run(uid('log'), now, 'system',
`CheckMK: parsed 0 monitoring hosts from response (candidates array length: ${candidates.length}). ` +
'Check the raw response entry above to identify the correct JSON path.');
}
} catch (err: any) {
const msg = `CheckMK sync failed — could not fetch monitoring states: ${err?.message ?? err}`;
console.error('[CheckMK]', msg);
db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)')
.run(uid('log'), now, 'system', msg);
return;
}
// Step 3: update each device based on IP lookup + live state
const rows = db.prepare('SELECT id, hostname, ip, status FROM devices').all() as { id: string; hostname: string; ip: string; status: string }[]; const rows = db.prepare('SELECT id, hostname, ip, status FROM devices').all() as { id: string; hostname: string; ip: string; status: string }[];
const counts = { online: 0, offline: 0, unknown: 0 }; const counts = { online: 0, offline: 0, unknown: 0 };
let loggedFirstExtensions = false;
for (const dev of rows) { for (const dev of rows) {
const cmkHost = ipToHostname.get(dev.ip); const cmkHost = ipToHostname.get(dev.ip);
@ -797,7 +759,23 @@ async function startServer() {
counts.unknown++; counts.unknown++;
continue; continue;
} }
const state = hostnameToState.get(cmkHost); try {
const hostRes = await fetch(
`${CHECKMK_API_URL}/objects/host/${encodeURIComponent(cmkHost)}`,
{ headers }
);
if (!hostRes.ok) throw new Error(checkmkHttpHint(hostRes.status));
const hostData = await hostRes.json();
// Log raw extensions once so the state field path can be verified.
if (!loggedFirstExtensions) {
loggedFirstExtensions = true;
db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)')
.run(uid('log'), now, 'system',
`CheckMK per-host raw extensions for "${cmkHost}": ${JSON.stringify(hostData?.extensions ?? hostData).substring(0, 400)}`);
}
const state: number = hostData?.extensions?.state ?? -1;
const newStatus = state === 0 ? 'online' : state === 1 || state === 2 ? 'offline' : 'unknown'; const newStatus = state === 0 ? 'online' : state === 1 || state === 2 ? 'offline' : 'unknown';
db.prepare('UPDATE devices SET status = ?, lastCheckedAt = ? WHERE id = ?').run(newStatus, now, dev.id); db.prepare('UPDATE devices SET status = ?, lastCheckedAt = ? WHERE id = ?').run(newStatus, now, dev.id);
if (dev.status !== newStatus) { if (dev.status !== newStatus) {
@ -805,6 +783,13 @@ async function startServer() {
.run(uid('log'), now, 'status', `CheckMK: ${dev.hostname} (${dev.ip}) status changed to ${newStatus} (was: ${dev.status}).`, dev.id); .run(uid('log'), now, 'status', `CheckMK: ${dev.hostname} (${dev.ip}) status changed to ${newStatus} (was: ${dev.status}).`, dev.id);
} }
counts[newStatus as 'online' | 'offline' | 'unknown']++; counts[newStatus as 'online' | 'offline' | 'unknown']++;
} catch (err: any) {
const msg = `CheckMK: status sync failed for ${dev.hostname} (${dev.ip}) — ${err?.message ?? err}`;
console.error('[CheckMK]', msg);
db.prepare('INSERT INTO logs (id, timestamp, type, message, deviceId) VALUES (?, ?, ?, ?, ?)')
.run(uid('log'), now, 'system', msg, dev.id);
counts.unknown++;
}
} }
db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)') db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)')