Add CentOS (#12)

* Add CentOS 7

* Fix rawhide boot

* Test locale versions

http/centos/7-x86_64.ks

@@ -0,0 +1,52 @@
+install
+text
+reboot
+url --url=http://mirror.centos.org/centos/7/os/x86_64/
+repo --name=updates --baseurl=http://mirror.centos.org/centos/7/updates/x86_64/
+lang en_US.UTF-8
+keyboard us
+timezone --utc Etc/UTC
+rootpw --plaintext vagrant
+user --name=vagrant --groups=vagrant --password=vagrant --plaintext
+zerombr
+clearpart --all --initlabel
+autopart --type=plain
+bootloader --timeout=1
+
+%packages
+@core
+which
+libselinux-python
+# mandatory packages in the @core group
+-btrfs-progs
+-iprutils
+-kexec-tools
+-plymouth
+# default packages in the @core group
+-*-firmware
+-dracut-config-rescue
+-kernel-tools
+-libsysfs
+-microcode_ctl
+-NetworkManager*
+-postfix
+-rdma
+%end
+
+%post --erroronfail
+yum -y update
+
+cat <<EOF > /etc/sudoers.d/vagrant
+Defaults:vagrant !requiretty
+vagrant ALL=(ALL) NOPASSWD: ALL
+EOF
+chmod 440 /etc/sudoers.d/vagrant
+
+ln -s /dev/null /etc/udev/rules.d/80-net-name-slot.rules
+cat > /etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF
+DEVICE="eth0"
+BOOTPROTO="dhcp"
+ONBOOT="yes"
+TYPE="Ethernet"
+EOF
+%end