Running code on Symfony kernel initialisation

Question

How can some code in a bundle be executed after booting the Symfony2 kernel?

• The code must be run before a request is handled or console command is run.
• The code must be executed once, even when the kernel handles multiple requests during its lifetime.
• The code must be able to access the bundle configuration. It may therefore not be run to early in the proces.

The reason I need this is that I need to register a stream wrapper. I need to be able to use the bundle configuration since the stream wrapper definitions are defined in the config.

I tried the following:

• Implementing the constructor of the bundle class. (This does not work, not all bundles are initialised at this point)
• Creating event listeners for kernel.request and console.command (This will cause the code to be executed multiple times when the kernel handles multiple requests during its lifetime.)

Answer 1

You can override the boot method of your bundle.

class MyBundle extends Bundle
{
    public function boot()
    {

    }
}

Answer 2

You can register one service as event listener for both kernel.request and console.command. It will be fired from console and from HTTP request.