vagrant-wordpress/cookbooks/wordpress/templates/default/grants.sql.erb

GRANT ALL ON <%= @database %>.* TO '<%= @user %>'@'%' IDENTIFIED BY '<%= @password %>';
GRANT ALL ON <%= @database %>.* TO '<%= @user %>'@'<%= node['fqdn'] %>' IDENTIFIED BY '<%= @password %>';
GRANT ALL ON <%= @database %>.* TO '<%= @user %>'@'localhost' IDENTIFIED BY '<%= @password %>';

FLUSH PRIVILEGES;