kickstart_kvm.sh

#!/usr/bin/env bash

set -e
[ ! -z $DEBUG ] && set -x

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

if [ $# -ne 4 ]; then
  echo "Usage: `basename $0` NAME IPADDR NETMASK GATEWAY" 1>&2
  exit 1
fi

NAME=$1
IPADDR=$2
NETMASK=$3
GATEWAY=$4

PASSWD=`cat /dev/urandom | tr -cd '[:alnum:]' | fold -w32 | head -1`

RELEASE=${RELEASE:-6.8}
TIMEZONE=${TIMEZONE:-Asia/Tokyo}

BRIDGE=${BRIDGE:-br0}
MEMORY=${MEMORY:-512}
DISK=${DISK:-20}
CPU=${CPU:-2}

KS_CFG=ks_$NAME.cfg

cd `dirname $0`

PUBKEYS=""
if [ -f authorized_keys ]; then
  PUBKEYS=`cat authorized_keys`
fi

mkdir -p tmp
cat << __EOM__ > tmp/$KS_CFG
install
lang en_US.UTF-8
keyboard us

network --device eth0 --onboot yes --bootproto=static --ip=$IPADDR --netmask=$NETMASK --gateway=$GATEWAY --nameserver=8.8.8.8 --noipv6 --hostname $NAME

zerombr
bootloader --location=mbr --append="crashkernel=auto rhgb quiet"

clearpart --all --initlabel --drives=vda
autopart

rootpw --plaintext $PASSWD
authconfig --enableshadow --passalgo=sha512
selinux --disabled
firewall --disabled
firstboot --disabled
timezone --utc $TIMEZONE
reboot

%packages
openssh-server
%end

%post
/bin/sed -i -e 's/^\(\s*kernel .*\)$/\1 console=tty0 console=ttyS0,115200n8/' /boot/grub/grub.conf

/bin/mkdir /root/.ssh
/bin/echo "$PUBKEYS" >> /root/.ssh/authorized_keys
%end
__EOM__

virt-install \
  --name $NAME \
  --virt-type kvm \
  --ram $MEMORY \
  --vcpus $CPU \
  --arch x86_64 \
  --os-type linux \
  --os-variant rhel6 \
  --boot hd \
  --disk path=/var/lib/libvirt/images/$NAME.img,size=$DISK \
  --network bridge=$BRIDGE \
  --graphics vnc \
  --serial pty \
  --console pty,target_type=serial \
  --location http://ftp.riken.jp/Linux/centos/$RELEASE/os/x86_64/ \
  --initrd-inject tmp/$KS_CFG \
  --extra-args "ks=file:/$KS_CFG" \
  --noautoconsole

echo ======================================
echo "USER: root"
echo "PASS: $PASSWD"
echo ======================================