serfer/test/node.js

A exact copy of the serf client for nodejs.

var Serfer = require('../src'),
    log = require('winston'),
    spawn = require('child_process').spawn,
    os = require('os');

var sequence = Number(process.argv[2]);

// -- start an agent locally
var nodeAgent = spawn('serf', [
    'agent',
    '-node', 'node-' + sequence,
    '-rpc-addr', 'localhost:' + (7350 + sequence),
    '-bind', '0.0.0.0:' + (7950 + sequence)
]);

nodeAgent.stdout.on('data', function (data) {
    console.log('[NODE-' + sequence + '] stdout: ' + data);
});

nodeAgent.stderr.on('data', function (data) {
    console.log('[NODE-' + sequence + '] stderr: ' + data);
});

nodeAgent.on('close', function (code) {
    console.log('[NODE-' + sequence + '] exited with code ' + code);
});

setTimeout(function() {
    var nodeClient = new Serfer();

    nodeClient
        .connect({
            host: "localhost",
            port: (7350 + sequence)
        })
        .then(function () {
            log.log('info', 'up and running');
        });

    setTimeout(function () {
        nodeClient
            .join(['127.0.0.1:7950'], false)
            .then(function () {
                log.log('info', 'Joined the cluster!');
            });

        setInterval(function () {
            var data = os.loadavg();
            log.log('info', 'sending ' + JSON.stringify(data));
            nodeClient.userEvent('load', JSON.stringify(data), false);
        }, 5000);

    }, 2000);
}, 2000);