This is in my project's bin/.vagrant.init.sh which is looked for (and ran) by my custom vagrant provision.sh

.vagrant.init.sh

#!/bin/sh

cp -f app/config/parameters.dist.yml app/config/parameters.yml
rm -rf app/cache/*
php app/console doctrine:database:create
php app/console doctrine:migrations:migrate --no-interaction
yes | php app/console doctrine:fixtures:load
php app/console cache:clear
php app/console assetic:dump
php app/console assets:install --symlink
replace "\$kernel = new AppKernel('prod', false);" "\$kernel = new AppKernel('dev', true);" -- web/app.php

provision.sh

#!/bin/sh

mkdir -p /vagrant/http-logs

if [ -d /vagrant/web ] && [ ! -f /vagrant/.vagrant.force.global ]
then
      sudo cp -f /home/vagrant/files/app.conf /etc/httpd/conf.d/vagrant.conf
else
    	sudo cp -f /home/vagrant/files/global.conf /etc/httpd/conf.d/vagrant.conf
fi

sudo su -c "killall -HUP httpd"

if [ -f /vagrant/bin/.vagrant.init.sh ]
then
	cd /vagrant
        bash ./bin/.vagrant.init.sh
fi

echo "Finished"

Vagrantfile

Vagrant::Config.run do |config|
  # All Vagrant configuration is done here. The most common configuration
  # options are documented and commented below. For a complete reference,
  # please see the online documentation at vagrantup.com.

  # Every Vagrant virtual environment requires a box to build off of.
  config.vm.box = "centos63"

  # The url from where the 'config.vm.box' box will be fetched if it
  # doesn't already exist on the user's system.
  # config.vm.box_url = "http://domain.com/path/to/above.box"

  # Boot with a GUI so you can see the screen. (Default is headless)
  # config.vm.boot_mode = :gui

  # Assign this VM to a host-only network IP, allowing you to access it
  # via the IP. Host-only networks can talk to the host machine as well as
  # any other machines on the same network, but cannot be accessed (through this
  # network interface) by any external networks.
  # config.vm.network :hostonly, "192.168.33.10"

  # Assign this VM to a bridged network, allowing you to connect directly to a
  # network using the host's network device. This makes the VM appear as another
  # physical device on your network.
  # config.vm.network :bridged

  # Forward a port from the guest to the host, which allows for outside
  # computers to access the VM, whereas host only networking does not.
  config.vm.forward_port 80, 8080
  config.vm.forward_port 3306, 7706

  # Share an additional folder to the guest VM. The first argument is
  # an identifier, the second is the path on the guest to mount the
  # folder, and the third is the path on the host to the actual folder.
  # config.vm.share_folder "v-data", "/vagrant_data", "../data"
  config.vm.share_folder("v-root", "/vagrant", ".", :nfs => true)

  # Enable provisioning with Puppet stand alone.  Puppet manifests
  # are contained in a directory path relative to this Vagrantfile.
  # You will need to create the manifests directory and a manifest in
  # the file centos.pp in the manifests_path directory.
  #
  # An example Puppet manifest to provision the message of the day:
  #
  # # group { "puppet":
  # #   ensure => "present",
  # # }
  # #
  # # File { owner => 0, group => 0, mode => 0644 }
  # #
  # # file { '/etc/motd':
  # #   content => "Welcome to your Vagrant-built virtual machine!
  # #               Managed by Puppet.\n"
  # # }
  #
  # config.vm.provision :puppet do |puppet|
  #   puppet.manifests_path = "manifests"
  #   puppet.manifest_file  = "centos.pp"
  # end

  # Enable provisioning with chef solo, specifying a cookbooks path, roles
  # path, and data_bags path (all relative to this Vagrantfile), and adding 
  # some recipes and/or roles.
  #
  # config.vm.provision :chef_solo do |chef|
  #   chef.cookbooks_path = "../my-recipes/cookbooks"
  #   chef.roles_path = "../my-recipes/roles"
  #   chef.data_bags_path = "../my-recipes/data_bags"
  #   chef.add_recipe "mysql"
  #   chef.add_role "web"
  #
  #   # You may also specify custom JSON attributes:
  #   chef.json = { :mysql_password => "foo" }
  # end

  # Enable provisioning with chef server, specifying the chef server URL,
  # and the path to the validation key (relative to this Vagrantfile).
  #
  # The Opscode Platform uses HTTPS. Substitute your organization for
  # ORGNAME in the URL and validation key.
  #
  # If you have your own Chef Server, use the appropriate URL, which may be
  # HTTP instead of HTTPS depending on your configuration. Also change the
  # validation key to validation.pem.
  #
  # config.vm.provision :chef_client do |chef|
  #   chef.chef_server_url = "https://api.opscode.com/organizations/ORGNAME"
  #   chef.validation_key_path = "ORGNAME-validator.pem"
  # end
  #
  # If you're using the Opscode platform, your validator client is
  # ORGNAME-validator, replacing ORGNAME with your organization name.
  #
  # IF you have your own Chef Server, the default validation client name is
  # chef-validator, unless you changed the configuration.
  #
  #   chef.validation_client_name = "ORGNAME-validator"
  config.vm.provision :shell, :path => "pwd > .vagrant_path"
  config.vm.provision OnHostProvisioner
end
class OnHostProvisioner < Vagrant::Provisioners::Base
  def provision!
    env[:vm].channel.execute("/home/vagrant/provision.sh")
  end
end