Provision Vagrant machine with mysql Puppet module - mysql

Question

I am trying to provision a Vagrant machine using this puppet module.
The Hello world is simple, its something like this:
class { '::mysql::server':
root_password => 'strongpassword',
remove_default_accounts => true
}
But my main objective is, when you do vagrant up the first time, the vagrant machine will have a mysql server ready for external access and be able to accept external connections from the host with a specific user.
This is what I tried:
class { '::mysql::server':
root_password => 'strongpass',
remove_default_accounts => false,
override_options => {
mysqld => { bind-address => '0.0.0.0'} //allow entry connections from any ip
}
}
//create a database called `mydb`, a user and a password
mysql::db { 'mydb':
user => 'admin',
password => 'secret',
host => '192.168.33.1',
}
//assign it all the privileges to that user
mysql_grant { 'admin#192.168.33.1/*.*':
ensure => 'present',
options => ['GRANT'],
privileges => ['ALL'],
table => '*.*',
user => 'admin#192.168.33.1',
}
This is the test I do in order to see if it worked:
Destroy the vagrant machine if already exists: vagrant destroy
Create the vagrant machine: vagrant up
Try to connect with MySQLWorkbench.
Question
The weird thing is, when I try to do a connection, it is just not possible, but if I do a vagrant reload --provision then I am able to connect it with MySQLWorkbech. What am I doing wrong?