Files
openswarm/scripts/ci/verify-resilience.js

88 lines
3.8 KiB
JavaScript

#!/usr/bin/env node
// Proves the app survives a taken preferred port (--locked-port falls back, still serves 200) and a second launch (--multi-instance exits cleanly, first keeps serving). No flag runs both.
'use strict';
const net = require('net');
const h = require('./lib/app-harness');
function parseArgs(argv) {
const out = { app: null, lockedPort: false, multiInstance: false };
for (let i = 0; i < argv.length; i++) {
if (argv[i] === '--app') out.app = argv[++i];
else if (argv[i] === '--locked-port') out.lockedPort = true;
else if (argv[i] === '--multi-instance') out.multiInstance = true;
}
if (!out.lockedPort && !out.multiInstance) { out.lockedPort = true; out.multiInstance = true; }
return out;
}
function occupy(ports) {
return Promise.all(ports.map((p) => new Promise((resolve) => {
const srv = net.createServer();
srv.once('error', () => resolve(null)); // already taken; fine, still occupied
srv.listen(p, '127.0.0.1', () => resolve(srv));
}))).then((s) => s.filter(Boolean));
}
async function healthOk(port) {
let code = 0;
for (let i = 0; i < 10 && code !== 200; i++) { code = await h.healthCode(port); if (code !== 200) await h.sleep(1000); }
return code === 200;
}
async function lockedPortCheck(appPath) {
const occupied = [];
for (let p = 8324; p <= 8333; p++) occupied.push(p); // hold the bottom of the preferred range
process.stdout.write(`[locked-port] occupying 127.0.0.1:${occupied[0]}-${occupied[occupied.length - 1]}\n`);
const servers = await occupy(occupied);
let child = null;
try {
const res = await h.launchAndWait({ appPath, timeoutMs: 120000 });
child = res.child;
if (!res.port) throw new Error('app never reported a backend port while preferred ports were taken');
if (occupied.includes(res.port)) throw new Error(`app bound an occupied port :${res.port} (should have skipped it)`);
if (!(await healthOk(res.port))) throw new Error(`app came up on :${res.port} but health != 200`);
process.stdout.write(`[locked-port] PASS: app skipped taken ports, served on :${res.port}\n`);
} finally {
h.killApp(child);
servers.forEach((s) => { try { s.close(); } catch { /* */ } });
await h.sleep(1500);
}
}
async function multiInstanceCheck(appPath) {
process.stdout.write('[multi-instance] launching first instance\n');
const res = await h.launchAndWait({ appPath, timeoutMs: 120000 });
const first = res.child;
let second = null;
try {
if (res.port && !(await healthOk(res.port))) throw new Error('first instance did not reach health 200');
process.stdout.write('[multi-instance] launching second instance (must exit cleanly)\n');
second = h.spawnApp(appPath);
const exitCode = await new Promise((resolve) => {
const t = setTimeout(() => resolve('timeout'), 45000);
second.once('exit', (code) => { clearTimeout(t); resolve(code); });
});
if (exitCode === 'timeout') throw new Error('second instance did not exit within 45s (single-instance lock not enforced)');
if (res.port && !(await healthOk(res.port))) throw new Error('first instance stopped serving after the second launched');
process.stdout.write(`[multi-instance] PASS: second instance exited (code ${exitCode}); first still serving\n`);
second = null; // it exited on its own
} finally {
h.killApp(second);
h.killApp(first);
await h.sleep(1500);
}
}
async function main() {
const args = parseArgs(process.argv.slice(2));
const appPath = h.packagedAppPath(args.app);
process.stdout.write(`App: ${appPath}\n`);
if (args.lockedPort) await lockedPortCheck(appPath);
if (args.multiInstance) await multiInstanceCheck(appPath);
process.stdout.write('\nRESILIENCE PASS: all selected checks passed.\n');
process.exit(0);
}
main().catch((e) => { process.stderr.write(`\nRESILIENCE FAIL: ${e && e.message || e}\n`); process.exit(1); });