configuration management

Sometimes you don't need or want a dedicated server for configuration management with Chef, and this is completely possible, you can use a knife plugin called `knife-zero` to simulate a local server with chef local mode and work everything within a repository.

I needed to do a loop inside a block in Ansible, but I could not do it - it was forbidden to use inside the block. The solution was to use `include_tasks` to mimic the block in another file.