My shared folders configuration for Vagrant using Rsync instead of nfs to have a much better performance on Mac OS

vagrantfile-rsync-conf.rb

 config.vm.synced_folder '.', '/var/www',
    type: 'rsync',
    rsync__exclude: [
      'Vagrantfile',     # Vagrant control file
      '.vagrant/',       # Vagrant work area
      '.git/',           # Git repository
      '.gitignore',      # Git support file
      '.gitattributes',  # Git support file
      'foo/media/images', # other folders you don't want to be wiped with the host contents
      'vendor/' # other folders you don't want to be wiped with the host contents
    ],
    rsync__auto: true,
    owner: "www-data",
    group: "www-data",
    mount_options: ["dmode=775,fmode=664"]
# Use this vagrant plugin in order to synchronize your changes to the vm: https://github.com/wk8/vagrant-instant-rsync-auto