310 lines
12 KiB
JavaScript
310 lines
12 KiB
JavaScript
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/* =====================================================================
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* MISSION CONTROL — Siber Sunucu DevOps İzleme Kokpiti
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* Express backend + sahte telemetri üretici + REST API
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*
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* Uçlar:
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* GET /metrics → anlık dalgalanan cpu/ram/disk/ağ + olaylar
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* GET /processes → 6 sahte prosesin running listesi
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* DELETE /processes/:id → bir prosesi durdurup listeden düşürür
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* GET /events → olay konsolu geçmişi (ön veri)
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* (statik) static /public → single-page kokpit
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* ===================================================================== */
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'use strict';
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const path = require('path');
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const express = require('express');
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const app = express();
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app.use(express.json());
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app.use(express.static(path.join(__dirname, 'public')));
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const PORT = process.env.PORT || 5000;
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const TICK_MS = 1000; // her saniye kalp atışı
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const EVENT_BUF = 60; // olay konsolu ring buffer boyutu
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const CPU_HISTORY_LEN = 30; // son 30 saniyelik CPU geçmişi (sunucu tarafı da tutar)
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/* ---------------------------------------------------------------------
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* Yardımcılar
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* ------------------------------------------------------------------- */
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function clamp(v, lo, hi) { return v < lo ? lo : (v > hi ? hi : v); }
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function rnd(min, max) { return min + Math.random() * (max - min); }
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function formatTime(d) {
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const p = (n) => String(n).padStart(2, '0');
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return `${p(d.getHours())}:${p(d.getMinutes())}:${p(d.getSeconds())}`;
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}
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/* ---------------------------------------------------------------------
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* Metro: rastgele dalgalanan sahte metrikler
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* ------------------------------------------------------------------- */
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const metrics = {
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cpu: { value: 36, min: 4, max: 96, step: 8, chance: 0.07 },
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memory: { usedMB: 3920, totalMB: 8192, step: 90, chance: 0.02, spikeTo: 7100 },
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disk: { usedMB: 638, totalMB: 1024, step: 2, chance: 0.01, spikeTo: 995 },
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network: { inMbps: 12.4, outMbps: 3.2, step: 4, min: 0.2, max: 70, chance: 0.12 },
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ts: Date.now(),
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};
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const cpuHistory = []; // son 30 sn cpu yüzdesi
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metrics.cpu.value = 36;
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function randomWalk(key) {
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const m = metrics[key];
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const delta = rnd(-m.step, m.step);
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let v = m.value;
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if (Array.isArray(v)) v = v[0]; // güvenlik — network nesne değil
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return Number(clamp(v + delta, m.min ?? 0, m.max ?? 100).toFixed(1));
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}
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/* Tüm metrikleri tek tıkta dalgalandır (1 saniyede 1) */
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function tickMetrics() {
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// CPU — brownian benzeri yürüyüş + nadir spike
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metrics.cpu.value = clamp(
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Number((metrics.cpu.value + rnd(-metrics.cpu.step, metrics.cpu.step)).toFixed(1)),
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metrics.cpu.min, metrics.cpu.max
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);
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if (Math.random() < metrics.cpu.chance) {
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metrics.cpu.value = clamp(metrics.cpu.value + rnd(25, 45), metrics.cpu.min, metrics.cpu.max);
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metrics.cpu.value = Number(metrics.cpu.value.toFixed(1));
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logEvent('warn', 'CPU', `cpu spike detected (${metrics.cpu.value.toFixed(0)}%)`);
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}
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cpuHistory.push(metrics.cpu.value);
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if (cpuHistory.length > CPU_HISTORY_LEN) cpuHistory.shift();
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// Memory — ılımlı dalgalanma + nadir yüksek ani bellecek
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const memDelta = rnd(-metrics.memory.step, metrics.memory.step);
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metrics.memory.usedMB = clamp(metrics.memory.usedMB + memDelta, 1500, 7800);
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if (Math.random() < metrics.memory.chance) {
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metrics.memory.usedMB = clamp(metrics.memory.usedMB + rnd(400, 1200), 1500, 7800);
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logEvent('warn', 'MEM', `memory usage climbing (${pctMemory()}%)`);
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}
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// Disk — yüksek sabit + cılız drift
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metrics.disk.usedMB = clamp(
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metrics.disk.usedMB + rnd(-metrics.disk.step, metrics.disk.step), 300, 1000
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);
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if (Math.random() < metrics.disk.chance * 0.3) {
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metrics.disk.usedMB = clamp(metrics.disk.usedMB + rnd(20, 60), 300, 1005);
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if (metrics.disk.usedMB > 990) logEvent('crit', 'DISK', 'disk near full — threshold 98%');
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}
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// Ağ — sürekli iniş çıkış
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metrics.network.inMbps = clamp(
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Number((metrics.network.inMbps + rnd(-metrics.network.step, metrics.network.step)).toFixed(2)),
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metrics.network.min, metrics.network.max
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);
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metrics.network.outMbps = clamp(
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Number((metrics.network.outMbps + rnd(-metrics.network.step * 0.6, metrics.network.step * 0.6)).toFixed(2)),
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0.2, metrics.network.max
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);
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metrics.ts = Date.now();
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}
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function pctMemory() {
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return Math.round((metrics.memory.usedMB / metrics.memory.totalMB) * 100);
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}
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function pctDisk() {
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return Math.round((metrics.disk.usedMB / metrics.disk.totalMB) * 100);
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}
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function fmtGB(mb) { return (mb / 1024).toFixed(2) + ' GB'; }
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function fmtMBVal(mb) { return mb.toFixed(0) + ' MB'; }
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/* ---------------------------------------------------------------------
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* Metro: olay günlüğü (ring buffer)
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* ------------------------------------------------------------------- */
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const events = [];
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function logEvent(type, tag, message) {
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events.push({
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time: formatTime(new Date()),
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type: type || 'info', // ok | warn | crit | info
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tag: tag || 'SYS',
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message: String(message),
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});
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if (events.length > EVENT_BUF) events.shift();
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}
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/* Açılışta kokpiti dolduran başlangıç olayları */
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function seedEvents() {
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logEvent('ok', 'nginx', 'request GET /api/v1/orders 200 OK (12ms)');
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logEvent('ok', 'redis', 'cache hit key:user:5842 (0.4ms)');
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logEvent('ok', 'postgresql', 'connection pool healthy (24/25 conn)');
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logEvent('info', 'auth', 'token refresh for operator session');
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logEvent('warn', 'analytics', 'slow query detected — 1.8s (threshold 1.5s)');
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logEvent('info', 'SYS', 'mission-control uplink established');
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logEvent('ok', 'payment', 'webhook acknowledged (evt_8f2a)');
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}
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/* ---------------------------------------------------------------------
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* Metro: 6 sahte proses
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* ------------------------------------------------------------------- */
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const processes = new Map(); // key: pid
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let _nextPid = 1101;
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function spawnDefaultProcesses() {
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const defs = [
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{ service: 'nginx', baseCpu: 14, maxCpu: 22, baseMem: 210 },
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{ service: 'postgresql', baseCpu: 22, maxCpu: 40, baseMem: 980 },
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{ service: 'redis', baseCpu: 8, maxCpu: 15, baseMem: 320 },
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{ service: 'auth-service', baseCpu: 16, maxCpu: 30, baseMem: 460 },
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{ service: 'payment-worker', baseCpu: 11, maxCpu: 26, baseMem: 540 },
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{ service: 'analytics', baseCpu: 24, maxCpu: 48, baseMem: 1280 },
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];
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for (const d of defs) {
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const pid = _nextPid++;
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processes.set(pid, {
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pid,
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service: d.service,
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cpu: clamp(d.baseCpu + rnd(-4, 4), 1, d.maxCpu),
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memMB: clamp(d.baseMem + rnd(-30, 30), 20, d.baseMem + 200),
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status: 'running',
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baseCpu: d.baseCpu,
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maxCpu: d.maxCpu,
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baseMem: d.baseMem,
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});
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}
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}
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/* Her saniye proseslerin cpu/mem değerlerini hafif oynat */
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function tickProcesses() {
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for (const p of processes.values()) {
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if (p.status !== 'running') continue;
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const nc = clamp(
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Number((p.cpu + rnd(-6, 6)).toFixed(1)),
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2, p.maxCpu + 12
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);
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if (Math.random() < 0.03 && p.cpu > p.maxCpu) {
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logEvent('warn', p.service, `cpu spike on ${p.service} (${nc.toFixed(0)}%)`);
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}
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p.cpu = nc;
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p.memMB = clamp(
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Number((p.memMB + rnd(-40, 40)).toFixed(0)),
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25, p.baseMem + 300
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);
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}
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}
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function runningProcesses() {
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const list = [...processes.values()].filter(p => p.status === 'running');
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return list.sort((a, b) => a.pid - b.pid);
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}
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/* ---------------------------------------------------------------------
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* Metro: seyrek otomatik arka plan olayları (canlılık hissi)
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* ------------------------------------------------------------------- */
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function maybeAutoLog() {
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const roll = Math.random();
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if (roll < 0.22) {
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const pool = [
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['ok', 'nginx', 'request GET /api/v1/health 200 OK (9ms)'],
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['ok', 'nginx', 'request POST /api/v1/webhooks 201 Created (34ms)'],
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['ok', 'redis', 'cache hit key:session:9912 (0.3ms)'],
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['ok', 'redis', 'SET cache miss → stored key:flight:77 (0.6ms)'],
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['ok', 'auth', 'login success op:sektor (2FA ok)'],
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['info', 'payment', 'transaction 0x41c..f2 confirmed (12 confirmations)'],
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['info', 'analytics', 'aggregation window closing… writing 12.4k rows'],
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['ok', 'postgresql', 'checkpoint complete (wal flushed)'],
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['info', 'nginx', 'reload config — zero downtime'],
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['warn', 'auth', 'brute-force attempt blocked ip:203.0.113.99'],
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];
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const picked = pool[Math.floor(Math.random() * pool.length)];
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logEvent(picked[0], picked[1], picked[2]);
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} else if (roll < 0.30) {
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// Nadiren bir ağ veya cpu normalleştirme bildirimi
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const type = Math.random() < 0.5 ? 'ok' : 'warn';
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const tag = Math.random() < 0.5 ? 'NET' : 'CPU';
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const msg = type === 'ok'
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? `traffic normalized — in ${metrics.network.inMbps.toFixed(1)} Mbps`
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: `load average rising — cpu ${metrics.cpu.value.toFixed(0)}%`;
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logEvent(type, tag, msg);
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}
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}
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/* ---------------------------------------------------------------------
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* REST API uçları
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* ------------------------------------------------------------------- */
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app.get('/metrics', (req, res) => {
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res.json({
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ts: metrics.ts,
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cpu: Number(metrics.cpu.value),
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cpuHistory: cpuHistory.slice(),
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memory: {
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usedMB: Math.round(metrics.memory.usedMB),
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totalMB: metrics.memory.totalMB,
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percent: pctMemory(),
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usedText: fmtMBVal(metrics.memory.usedMB),
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},
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disk: {
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usedMB: Math.round(metrics.disk.usedMB),
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totalMB: metrics.disk.totalMB,
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percent: pctDisk(),
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usedText: fmtMBVal(metrics.disk.usedMB),
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},
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network: {
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inMbps: Number(metrics.network.inMbps),
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outMbps: Number(metrics.network.outMbps),
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},
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processesRunning: runningProcesses().length,
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events: events.slice(-EVENT_BUF),
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uptimeSec: Math.round(process.uptime()),
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});
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});
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app.get('/processes', (req, res) => {
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res.json({ processes: runningProcesses() });
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});
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app.get('/events', (req, res) => {
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res.json({ events: events.slice(-EVENT_BUF) });
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});
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app.delete('/processes/:id', (req, res) => {
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const raw = req.params.id;
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const pid = Number(raw);
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let target = null;
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if (!Number.isNaN(pid)) {
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target = processes.get(pid) || null;
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} else {
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// servis adıyla da bulabiliriz
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for (const p of processes.values()) {
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if (p.service === raw && p.status === 'running') { target = p; break; }
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}
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}
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if (!target) {
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return res.status(404).json({ ok: false, error: 'process not found' });
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}
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if (target.status !== 'running') {
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return res.status(409).json({ ok: false, error: 'process already stopped' });
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}
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target.status = 'stopped';
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// Prosesi haritadan kalıcı çıkar ki restart edilmemiş saysın
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// (isteğe göre durumda tutmak da yeterli; running listesinden düşer zaten)
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logEvent('crit', 'SYS', `process ${target.service} (pid ${target.pid}) terminated by operator`);
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res.json({ ok: true, pid: target.pid, service: target.service, status: 'stopped' });
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});
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/* ---------------------------------------------------------------------
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* Kalp atışı döngüsü + başlat
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* ------------------------------------------------------------------- */
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spawnDefaultProcesses();
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seedEvents();
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for (let i = 0; i < CPU_HISTORY_LEN; i++) cpuHistory.push(metrics.cpu.value); // ön doldur
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setInterval(() => {
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tickMetrics();
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tickProcesses();
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maybeAutoLog();
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}, TICK_MS);
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app.listen(PORT, () => {
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console.log('==================================================');
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console.log(' MISSION CONTROL — uplink established');
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console.log(` API + UI : http://localhost:${PORT}`);
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console.log(' endpoints : GET /metrics, GET /processes,');
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console.log(' GET /events, DELETE /processes/:id');
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console.log(` heartbeat : ${TICK_MS}ms`);
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console.log('==================================================');
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});
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