Ananconda kickstart

I am trying to use packer to build a virtual-box image using kickstart however the ananconda install fails due to lack of installation source and no software selection my kickstart script is shown below.

install
text
url --url=http://ift.tt/1BKDA6K

logging --level=debug

lang en_GB.UTF-8

keyboard gb

timezone --utc Europe/London

firstboot --disabled

reboot

firewall --disabled

# default for install bootloader
bootloader --location=mbr

# Disk partition
clearpart --all --initlabel

# Disk partition options
autopart

# formats drives with unknown part, eg new hardware
zerombr

authconfig --enableshadow --passalgo=sha512

selinux --permissive

# Initial User configuration
user --name=vagrant --password=vagrant --groups=vagrant,wheel

rootpw vagrant

network --bootproto=dhcp --device=eth0


skipx


%packages --ignoremissing --excludedocs
@Base
@Core
@Development Tools
sudo
wget
curl
gettext-devel
openssl-devel
perl-CPAN
perl-devel
zlib-devel
%end


%post
yum update -y

wget -O/etc/pki/tls/certs/ca-bundle.crt http://ift.tt/1c1wg83

# sudo
yum install -y sudo
echo "vagrant        ALL=(ALL)       NOPASSWD: ALL" >> /etc/sudoers.d/vagrant
sed -i "s/^.*requiretty/#Defaults requiretty/" /etc/sudoers


yum clean all
%end

The install is for a Centos7 minimal image. Any help would be appreciated!