Turn off CS:GO Dedicated Server via Node.js child_process

Question

I've been trying to programmatically control multiple Counter Strike: Global Offensive dedicated servers. Everything works fine, but I'm having trouble turning it completely off. When you turn on the server, it creates two processes: srcds_run and srcds_linux. I can easily do child_process.kill(), and it will turn off the srcds_run process, but the srcds_linux process keeps on running, even when the server is off. If I try to kill all srcds_linux processes, then it will kill all of the CSGO servers, even if I'm trying to turn off only one. Is there any way to select the corresponding srcds_run and srcds_linux processes?

This is my code so far:

// Turns on the server if not already on

Server.prototype.start = function(callback) {

    if(!this.online) {

        // Turn server on
        console.log('Starting server');

        this.process = spawn(this.directory + '/srcds_run', ['-game csgo', '-console', '-usercon', '+game_type 0', '+game_mode 0', '+mapgroup mg_active', '+map de_dust2', '+sv_setsteamaccount ' + this.token], { cwd: this.directory});

        this.process.stderr.on('data', function(err) {
            console.log('Error: ' + err);
        });

        this.process.stdin.on('data', function(chunk) {
            console.log('stdin: ' + chunk);
        });

        this.process.stdout.on('data', function(chunk) {
            console.log('stdout: ' + chunk);
        });

    }

    this.online = true;
    callback();
}

// Turns off the server if not already off

Server.prototype.stop = function(callback) {

    if(this.online) {

        // Turn server off
        console.log('Stopping server');
        this.process.kill();

    }

    this.online = false;
    callback();
}

I'm using an Ubuntu Server and am using the child_process.spawn module on node.js
I appreciate the help :)

Answer 1

So, thanks to @dvlsg, I'm using pgrep to shut down the corresponding srcds_linux process. This is the code I have so far.

var child_process = require('child_process');
var exec = child_process.exec;

function execute(command, callback){
    exec(command, function(error, stdout, stderr) {
        callback(stdout, error, stderr);
    });
};


// Turns off the server if not already off

Server.prototype.stop = function(callback) {

    if(this.online) {

        // Turn server off

        console.log('Stopping server');

        var processId = this.process.pid;

        execute('pgrep -P ' + processId, function(childId, error, stderror) {
            console.log('Parent ID: ' + processId);
            console.log('Child  ID: ' + childId);

            this.process.on('exit', function(code, signal) {

                console.log('Recieved event exit');
                execute('kill ' + childId);
                this.online = false;
                callback();

            });

            this.process.kill();

        });

    } else {
        this.online = false;
        callback();
    }

}

I will update the code if I improve it, but this is what I have so far.