Add minimal kickstart for docker images

This produces a super-minimal, 125Mb image suitable for importing into
Docker.

docker/docker-6.ks

@@ -0,0 +1,95 @@
+install
+url --url=http://mirrors.karan.org/centos/6/os/x86_64/
+lang en_US.UTF-8
+keyboard uk
+network --device eth0 --bootproto dhcp
+rootpw --iscrypted $1$UKLtvLuY$kka6S665oCFmU7ivSDZzU.
+firewall --service=ssh
+authconfig --enableshadow --passalgo=sha512 --enablefingerprint
+selinux --enforcing
+timezone --utc Europe/London
+repo --name="CentOS" --baseurl=http://mirrors.karan.org/centos/6/os/x86_64/ --cost=100
+clearpart --all --initlabel
+part / --fstype ext4 --size=1024 --grow
+reboot
+%packages  --excludedocs --nobase
+@Core
+-MAKEDEV
+-aic94xx-firmware
+-atmel-firmware
+-b43-openfwwf
+-bfa-firmware
+-cronie
+-dhclient
+-efibootmgr
+-ethtool
+-initscripts
+-iproute
+-iptables
+-iptables-ipv6
+-iputils
+-ipw2100-firmware
+-ipw2200-firmware
+-ivtv-firmware
+-iwl100-firmware
+-iwl1000-firmware
+-iwl3945-firmware
+-iwl4965-firmware
+-iwl5000-firmware
+-iwl5150-firmware
+-iwl6000-firmware
+-iwl6000g2a-firmware
+-iwl6050-firmware
+-kbd
+-kernel-firmware
+-libertas-usb8388-firmware
+-openssh-server
+-postfix
+-policycoreutils
+-ql2100-firmware
+-ql2200-firmware
+-ql23xx-firmware
+-ql2400-firmware
+-ql2500-firmware
+-redhat-logos
+-rsyslog
+-rt61pci-firmware
+-rt73usb-firmware
+-selinux-policy
+-selinux-policy-targeted
+-sudo
+-upstart
+-vim-minimal
+-xorg-x11-drv-ati-firmware
+-zd1211-firmware
+%end
+
+%post
+# cleanup unwanted stuff
+
+# ami-creator requires grub during the install, so we remove it (and
+# its dependencies) in %post
+rpm -e grub redhat-logos
+rm -rf /boot
+
+# some packages get installed even though we ask for them not to be,
+# and they don't have any external dependencies that should make
+# anaconda install them
+rpm -e MAKEDEV ethtool upstart initscripts iputils policycoreutils iptables \
+    iproute
+
+# locales
+rm -rf /usr/{{lib,share}/locale,{lib,lib64}/gconv,bin/localedef,sbin/build-locale-archive}
+#  docs
+rm -rf /usr/share/{man,doc,info,gnome/help}
+#  cracklib
+rm -rf /usr/share/cracklib
+#  i18n
+rm -rf /usr/share/i18n
+#  sln
+rm -rf /sbin/sln
+#  ldconfig
+rm -rf /etc/ld.so.cache
+rm -rf /var/cache/ldconfig/*
+
+%end