initial Centos-7 support
diff --git a/centos-7.0/scripts/base.sh b/centos-7.0/scripts/base.sh
new file mode 100644
index 0000000..f3e482c
--- /dev/null
+++ b/centos-7.0/scripts/base.sh
@@ -0,0 +1,3 @@
+sed -i "s/^.*requiretty/#Defaults requiretty/" /etc/sudoers
+yum -y install gcc make gcc-c++ kernel-devel-`uname -r` perl
+
diff --git a/centos-7.0/scripts/cleanup.sh b/centos-7.0/scripts/cleanup.sh
new file mode 100644
index 0000000..c7ee1a1
--- /dev/null
+++ b/centos-7.0/scripts/cleanup.sh
@@ -0,0 +1,5 @@
+yum -y erase gtk2 libX11 hicolor-icon-theme avahi freetype bitstream-vera-fonts
+yum -y clean all
+rm -rf VBoxGuestAdditions_*.iso
+rm -rf /tmp/rubygems-*
+
diff --git a/centos-7.0/scripts/salt.sh b/centos-7.0/scripts/salt.sh
new file mode 100644
index 0000000..5d7eb8d
--- /dev/null
+++ b/centos-7.0/scripts/salt.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+curl -L https://bootstrap.saltstack.com | sudo sh -s --
+curl -k -L https://bootstrap.saltstack.com | sudo sh -s --
+
diff --git a/centos-7.0/scripts/vagrant.sh b/centos-7.0/scripts/vagrant.sh
new file mode 100644
index 0000000..c3e2631
--- /dev/null
+++ b/centos-7.0/scripts/vagrant.sh
@@ -0,0 +1,6 @@
+date > /etc/vagrant_box_build_time
+
+mkdir -pm 700 /home/vagrant/.ssh
+curl -L https://raw.githubusercontent.com/mitchellh/vagrant/master/keys/vagrant.pub -o /home/vagrant/.ssh/authorized_keys
+chmod 0600 /home/vagrant/.ssh/authorized_keys
+chown -R vagrant:vagrant /home/vagrant/.ssh
diff --git a/centos-7.0/scripts/virtualbox.sh b/centos-7.0/scripts/virtualbox.sh
new file mode 100644
index 0000000..ba53d21
--- /dev/null
+++ b/centos-7.0/scripts/virtualbox.sh
@@ -0,0 +1,7 @@
+VBOX_VERSION=$(cat /home/vagrant/.vbox_version)
+cd /tmp
+mount -o loop /home/vagrant/VBoxGuestAdditions_$VBOX_VERSION.iso /mnt
+sh /mnt/VBoxLinuxAdditions.run
+umount /mnt
+rm -rf /home/vagrant/VBoxGuestAdditions_*.iso
+
diff --git a/centos-7.0/scripts/zerodisk.sh b/centos-7.0/scripts/zerodisk.sh
new file mode 100644
index 0000000..45f45ed
--- /dev/null
+++ b/centos-7.0/scripts/zerodisk.sh
@@ -0,0 +1,3 @@
+dd if=/dev/zero of=/EMPTY bs=1M
+rm -f /EMPTY
+