Add a config option to specify host:post.
Currently one can only set the port via config option Port just for krakend to use this value as a string.

func NewServer(cfg config.ServiceConfig, handler http.Handler) *http.Server {
	return &http.Server{
		Addr:              fmt.Sprintf(":%d", cfg.Port),
                ...
	}
}

See https://github.com/devopsfaith/krakend/blob/m

Thanks to Gabor Horvath for suggesting this feature:

Is the Rendering API documentation feature mandatory for starting up AES? If not, maybe there should be an option offered to disable it. For our use case, an option to disable it and as a result of that disabling calling home to GitHub would be useful.

What is the motivation for adding / enhancing this feature?

There is an object product_links that needs to be mapped to the `vsf-catalo

Proposal

Currently, the only information provided by the Backend Health Check system is if the connected database is running but we should also give the time taken for it to check the availability.

Further info

Django health check library documentation:
https://django-health-check.readthedocs.io/en/latest/readme.html#customizing-output