A cure for "localhost" appearing in absolute URL's when rendering a template from the Symfony2 CLI

RouterRequestContextPass.php

<?php

namespace Application\ExerciseBundle\DependencyInjection\Compiler;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;

/**
 * Overrides the default host for the Router's RequestContext service.
 *
 * This is necessary for generating URL's from a console command context, as the
 * RouterListener never executes and initializes the RequestContext from a
 * Request.
 */
class RouterRequestContextPass implements CompilerPassInterface
{
    public function process(ContainerBuilder $container)
    {
        if (false === $container->hasDefinition('router.request_context') || false === $container->hasParameter('exercise.host')) {
            return;
        }

        $container
            ->getDefinition('router.request_context')
            ->replaceArgument(2, $container->getParameter('exercise.host'));
    }
}

+1! my solutions for this problem are uglier.

Same problem exists for sites behind proxies.

You can add that to your console script, no?

I could certainly do this on a case-by-case basis from a ContainerAwareCommand. The main difference would be I'd have to modify the constructed RequestContext, rather than alter its definition. Consider adding this to the command's initialize() method:

$this->container->get('router')->getContext()->setHost('example.com');

The compiler pass seems more DRY, though.