Use URL from config in PingCheck

[martijngastkemper]

I've some URLs that I want to monitor with a PingCheck. The URLs are loaded from an env var in config/services.php. I add the health checks in AppServiceProvider->boot() like this:

    public function boot()
    {
        Health::checks([
            PingCheck::new(config('services.foo.url'))
        ]);
    }

Now artisan package:discovery fails, because it doesn't have the configuration at that point. And that's caused by the fact that our deploy workflow doesn't have the configuration files. Up until now, the service providers were completely configuration agnostic. And I would like to keep it that way. But how? The package fires some events my app could listen to, but that's not in the documentation.

Would someone happen to have any suggestions on how to fix this?