mirror of
https://github.com/compiler-explorer/compiler-explorer.git
synced 2025-12-27 10:33:59 -05:00
4260313e13
This PR refactors some common utilities out of lib/ and into shared/ and eliminates some use of underscore.js, as well as general type improvements done along the way.
55 lines
2.3 KiB
TypeScript
55 lines
2.3 KiB
TypeScript
// Copyright (c) 2022, Compiler Explorer Authors
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the distribution.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
import express from 'express';
|
|
import PromClient from 'prom-client';
|
|
|
|
/**
|
|
* Will launch the Prometheus metrics server
|
|
*
|
|
* @param serverPort - The listening port to bind into this metrics server.
|
|
* @param hostname - The TCP host to attach the listener.
|
|
* @returns void
|
|
*/
|
|
export function setupMetricsServer(serverPort: number, hostname: string | undefined): void {
|
|
PromClient.collectDefaultMetrics();
|
|
const metricsServer = express();
|
|
|
|
metricsServer.get('/metrics', (req, res) => {
|
|
PromClient.register
|
|
.metrics()
|
|
.then(metrics => {
|
|
res.header('Content-Type', PromClient.register.contentType).send(metrics);
|
|
})
|
|
.catch(err => res.status(500).send(err));
|
|
});
|
|
|
|
// silly express typing, passing undefined is fine but
|
|
if (hostname) {
|
|
metricsServer.listen(serverPort, hostname);
|
|
} else {
|
|
metricsServer.listen(serverPort);
|
|
}
|
|
}
|