Updates

2026-07-18 19:49:57 -04:00
parent 2e1a3e9b06
commit a639b3c953
19 changed files with 1705 additions and 293 deletions
@@ -0,0 +1,105 @@
+/**
+ * NATS monitoring endpoint collector.
+ * Enable: PEARDATA_NATS=1
+ * URL: PEARDATA_NATS_URL=http://127.0.0.1:8222
+ */
+import { CollectorPlugin } from './plugin.js'
+import { registerChart } from '../../../shared/metrics.js'
+
+export function isNatsEnabled() {
+  const v = process.env.PEARDATA_NATS
+  return v === '1' || v === 'on' || v === 'true'
+}
+
+function base() {
+  return (process.env.PEARDATA_NATS_URL || 'http://127.0.0.1:8222').replace(/\/$/, '')
+}
+
+export class NatsCollector extends CollectorPlugin {
+  constructor() {
+    super({ name: 'nats' })
+  }
+
+  isEnabled() {
+    return isNatsEnabled()
+  }
+
+  async collect() {
+    const ts = Date.now()
+    registerChart({
+      id: 'nats.up',
+      name: 'nats.up',
+      context: 'nats.up',
+      title: 'NATS up',
+      units: 'boolean',
+      family: 'nats',
+      chartType: 'line',
+      priority: 8850,
+      plugin: 'nats',
+      dimensions: [{ id: 'up', name: 'up', algorithm: 'absolute' }],
+    })
+    try {
+      const res = await fetch(`${base()}/varz`, { signal: AbortSignal.timeout(2000) })
+      if (!res.ok) throw new Error(String(res.status))
+      const j = await res.json()
+      registerChart({
+        id: 'nats.connections',
+        name: 'nats.connections',
+        context: 'nats.connections',
+        title: 'NATS connections',
+        units: 'connections',
+        family: 'nats',
+        chartType: 'line',
+        priority: 8860,
+        plugin: 'nats',
+        dimensions: [
+          { id: 'connections', name: 'connections', algorithm: 'absolute' },
+          { id: 'routes', name: 'routes', algorithm: 'absolute' },
+          { id: 'remotes', name: 'remotes', algorithm: 'absolute' },
+        ],
+      })
+      registerChart({
+        id: 'nats.messages',
+        name: 'nats.messages',
+        context: 'nats.messages',
+        title: 'NATS messages',
+        units: 'messages',
+        family: 'nats',
+        chartType: 'line',
+        priority: 8870,
+        plugin: 'nats',
+        dimensions: [
+          { id: 'in_msgs', name: 'in_msgs', algorithm: 'absolute' },
+          { id: 'out_msgs', name: 'out_msgs', algorithm: 'absolute' },
+        ],
+      })
+      return [
+        { chart: 'nats.up', context: 'nats.up', ts, values: { up: 1 } },
+        {
+          chart: 'nats.connections',
+          context: 'nats.connections',
+          ts,
+          values: {
+            connections: j.connections || 0,
+            routes: j.routes || 0,
+            remotes: j.remotes || 0,
+          },
+        },
+        {
+          chart: 'nats.messages',
+          context: 'nats.messages',
+          ts,
+          values: { in_msgs: j.in_msgs || 0, out_msgs: j.out_msgs || 0 },
+        },
+      ]
+    } catch {
+      return [{ chart: 'nats.up', context: 'nats.up', ts, values: { up: 0 } }]
+    }
+  }
+}
+
+let singleton = null
+export function getNatsCollector() {
+  if (!singleton) singleton = new NatsCollector()
+  return singleton
+}