php-apache-mysql: Change mysql VM to use CentOS

Due to problems with root authentication method on Ubuntu
Ref: sous-chefs/mysql#597 (comment)

php-apache-mysql/Vagrantfile

@@ -5,12 +5,21 @@ unless Vagrant.has_plugin?("vagrant-ohai")
   raise "vagrant-ohai plugin is not installed! Install with 'vagrant plugin install vagrant-ohai'"
 end
 
-NODE_SCRIPT = <<EOF.freeze
+NODE_SCRIPT_UBUNTU = <<EOF.freeze
   echo "Preparing node..."
   # Install chef client
   wget -O - https://omnitruck.chef.io/install.sh | sudo bash -s -- -v 16.12
 EOF
 
+NODE_SCRIPT_CENTOS = <<EOF.freeze
+  echo "Preparing node..."
+  # ensure the time is up to date
+  yum -y install ntp
+  systemctl start ntpd
+  systemctl enable ntpd
+  curl -L https://omnitruck.chef.io/install.sh | sudo bash -s -- -v 16.12
+EOF
+
 def set_hostname(server)
   server.vm.provision 'shell', inline: "hostname #{server.vm.hostname}"
 end
@@ -23,20 +32,20 @@ config.vm.define 'phpapache' do |phpapache|
     phpapache.vm.box_version = '20210401.01'
     phpapache.vm.hostname = 'phpapache'
     phpapache.vm.network "forwarded_port", guest: 80, host: 8080
-    phpapache.vm.provision :shell, inline: NODE_SCRIPT.dup
+    phpapache.vm.provision :shell, inline: NODE_SCRIPT_UBUNTU.dup
     phpapache.vm.provider :virtualbox do |vb|
       vb.gui = false
     end
   set_hostname(phpapache)
 end
 
 config.vm.define 'mysql' do |mysql|
-    mysql.vm.box = 'peru/ubuntu-20.04-server-amd64'
-    mysql.vm.box_url = 'https://app.vagrantup.com/peru/boxes/ubuntu-20.04-server-amd64'
-    mysql.vm.box_version = '20210401.01'
+    mysql.vm.box = 'bento/centos-7.9'
+    mysql.vm.box_url = 'https://vagrantcloud.com/bento/boxes/centos-7.9'
+    mysql.vm.box_version = '202103.18.0'
     mysql.vm.hostname = 'mysql'
     mysql.vm.network :private_network, ip: '192.168.10.100'
-    mysql.vm.provision :shell, inline: NODE_SCRIPT.dup
+    mysql.vm.provision :shell, inline: NODE_SCRIPT_CENTOS.dup
     mysql.vm.provider :virtualbox do |vb|
       vb.gui = false
     end