Is there any way to bind to website or user deployment process pre or after it's initiation? Sort of action hook. What I want to achieve: when website is added I would like to launch wordpress installation for that created website.
You can do this by writing a server side plugin similar to the apache and nginx plugin which binds to the website insert event. The plugin name must be in alphabet after the apache and nginx plugin, so it gets executed after the site is created.
