Ability to provide(deploy) web application in fraction of time required by manual provision. Make updates and backups of web applications automated across the web servers. As a result of all that, (we) web servers maintainers will have much more time to focus on the end users and software tools, and boring repetitive technical tasks will be cut down. It will also provide us with coherent web servers, which is a significant advantage over ad-hoc (usual) way. For example, we will know at at any moment for all web applications who are they provided for and where all their files live on the server.