Synced folder setting in Vagrantfile with proper rights

gistfile1.rb

data['vm']['synced_folder'].each do |i, folder|
  if folder['source'] != '' && folder['target'] != '' && folder['id'] != ''
    nfs = (folder['nfs'] == "true") ? "nfs" : nil
    config.vm.synced_folder "#{folder['source']}", "#{folder['target']}", id: "#{folder['id']}", type: nfs,
      owner: "vagrant",
      group: "www-data",
      mount_options: ["dmode=775", "fmode=664"]
  end
end