Symfony2 Daemon Bundle

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Language: PHP

2.0.1 2014-08-05 17:30 UTC



Its now pretty easy to daemonize php commands using upstart, or init.d. Please use those instead of this, as you will get a lot more support.


DaemonBundle is a wrapper for the PEAR library System_Daemon which was created by Kevin Vanzonneveld.

This will enable you to install the symfony bundle and easily convert your Symfony2 console scripts into system daemons.

pcntl is required to be configured in your PHP binary to use this. On my Ubuntu server I was able to install pcntl easily with the following command:

sudo apt-get install php-5.3-pcntl-zend-server 

System_Daemon PEAR package

System_Daemon is a PHP class that allows developers to create their own daemon applications on Linux systems. The class is focussed entirely on creating & spawning standalone daemons

More info at:

DaemonBundle Config

THIS BUNDLE REQUIRES THE Uecode\Bundle\UecodeBundle (https://github.com/uecode/uecode-bundle)

Place Uecode\Bundle\Daemonbundle in your src directory and do the following:


"uecode/daemon-bundle": "dev-master",


Add The DaemonBundle to your kernel bootstrap sequence

public function registerBundles()
    $bundles = array(
        new Uecode\Bundle\DaemonBundle\DaemonBundle(),

    return $bundles;


By Default, system daemons have a sensible configuration. If you need to change any configuration setting , you could do it by adding this configuration to your project config. Only the values that need to be changed should be added, the bundle extension will merge your daemon configs into its defaults. YOU MUST HAVE AT LEAST THIS PIECE TO WORK


#Uecode DaemonBundle Config

config.yml - Extras


#UecodeDaemonBundle Configuration Example
            #creates a daemon using default options
            example: ~

            #an example of all the available options
                appName: example
                appDir: %kernel.root_dir%
                appDescription: Example of how to configure the DaemonBundle
                logDir: %kernel.logs_dir%
                authorName: Aaron Scherer
                authorEmail: aequasi@gmail.com
                appPidDir: %kernel.cache_dir%/daemons/
                sysMaxExecutionTime: 0
                sysMaxInputTime: 0
                sysMemoryLimit: 1024M
                appUser: apache
                appGroup: apache
                appRunAsGID: 1000
                appRunAsUID: 1000

Creating a Daemon


Make sure you extend \Uecode\Bundle\DaemonBundle\Command\ExtendCommand

namespace Uecode\Bundle\DaemonBundle\Command;

use \Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
use \Symfony\Component\Console\Input\InputInterface;
use \Symfony\Component\Console\Input\ArrayInput;
use \Symfony\Component\Console\Output\OutputInterface;
use \Symfony\Component\DependencyInjection\Container;

use \Uecode\Bundle\DaemonBundle\System\Daemon\Exception;
use \Uecode\Bundle\DaemonBundle\Service\DaemonService;

 * Example Command class
class ExampleCommand extends ExtendCommand
     * Configures the Command
    protected function configure()
            ->setName( 'example' )
            ->setDescription( 'Starts an example Daemon' )
            ->setHelp( 'Usage: <info>php app/console example start|stop|restart</info>' )
            ->addArgument( 'method', InputArgument::REQUIRED, 'start|stop|restart' );

     * Sample Daemon Logic. Logs `Daemon is running!` every 5 seconds
     * @param \Symfony\Component\Console\Input\InputInterface   $input
     * @param \Symfony\Component\Console\Output\OutputInterface $output
    protected function daemonLogic( InputInterface $input, OutputInterface $output )
        // Do a little logging
        $this->container->get( 'logger' )->info( 'Daemon is running!' );
        // And then sleep for 5 seconds
        $this->daemon->iterate( 5 );


Once you have Daemonized your symfony Console Commands, you can simply run them from the command line like so:

aequasi@ue:~/example$ php app/console queue:start

aequasi@ue:~/example$ php app/console queue:stop

aequasi@ue:~/example$ php app/console queue:restart

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