Vagrantfile to show the autorelabel bug with centos/7 Vagrant images. See https://github.com/rear/rear-workshop-osbconf-2016/issues/4 and https://bugs.centos.org/view.php?id=13213

Vagrantfile

# BUG proof for VirtualBox vagrant with centos/7 failing to run autorelabel
#
# before starting install the reload plugin with: vagrant plugin install vagrant-reload
#
# see the bug: vagrant up
# destroy VM: vagrant destroy -f
# see the fix (disable serial console): FIX=1 vagrant up
#
# destroy VM: vagrant destroy -f

Vagrant.configure(2) do |config|
  config.vm.box = "centos/7"

  config.vm.provider "virtualbox" do |vb|
     vb.memory = "1024"
  end
  config.vm.synced_folder ".", "/vagrant", disabled: true

  if ENV['FIX']
    config.vm.provision "shell", inline: <<-SHELL
      set -x
      sed -i -e 's/ console=[^ ]\\+\\?//g' /etc/default/grub
      cat /etc/default/grub
      grub2-mkconfig -o /boot/grub2/grub.cfg
    SHELL
  end

  config.vm.provision "shell", inline: <<-SHELL
     set -x
     touch /.autorelabel
  SHELL

  config.vm.provision :reload

  config.vm.provision "shell", inline: <<-SHELL
     set -x
     ls -l /.autorelabel || : "************ AUTORELABELING DONE ***************"
     systemctl status rhel-autorelabel
     grep ttyS0 /proc/cmdline /etc/default/grub /boot/grub2/grub.cfg || : "************ EVERYTING IS FINE NOW ***************"
  SHELL
end