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43 lines
1.2 KiB
JavaScript
43 lines
1.2 KiB
JavaScript
#!/usr/bin/env node
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"use strict";
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// FIXME: Safe shutdown on ctrl+C
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// FIXME: Somehow automatically detect whether other kernels are running on the system, and automatically clear locks when that is not the case?
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const Promise = require("bluebird");
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const yargs = require("yargs");
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const path = require("path");
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const express = require("express");
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const createKernel = require("../src/kernel");
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let argv = yargs.argv;
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let configurationPath = argv._[0];
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let listenHost = argv.listenHost ?? "127.0.0.1";
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let listenPort = argv.listenPort ?? 3131;
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let absoluteConfigurationPath = path.join(process.cwd(), configurationPath);
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let configuration = require(absoluteConfigurationPath);
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return Promise.try(() => {
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return createKernel(configuration);
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}).then((kernel) => {
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kernel.run();
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let metricsApp = express();
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metricsApp.get("/metrics", (req, res) => {
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return Promise.try(() => {
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return kernel.getMetrics();
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}).then(({ contentType, metrics }) => {
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res.set("Content-Type", contentType);
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res.send(metrics);
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});
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});
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metricsApp.listen({ host: listenHost, port: listenPort }, () => {
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console.log(`Metrics server listening on port ${listenPort}, host ${listenHost}`);
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});
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});
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