devstack_custom/make_image.sh

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#!/bin/bash
# make_image.sh - Create Ubuntu images in various formats
#
# make_image.sh release format
#
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# Supported formats: qcow (kvm), vmdk (vmserver), vdi (vbox), vhd (vpc), raw
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#
# Requires sudo to root
ROOTSIZE=${ROOTSIZE:-8192}
SWAPSIZE=${SWAPSIZE:-1024}
usage() {
echo "$0 - Create Ubuntu images"
echo ""
echo "$0 [-r rootsize] [-s swapsize] release format"
exit 1
}
while getopts hm:r:s: c; do
case $c in
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h) usage
;;
m) MIRROR=$OPTARG
;;
r) ROOTSIZE=$OPTARG
;;
s) SWAPSIZE=$OPTARG
;;
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esac
done
shift `expr $OPTIND - 1`
RELEASE=$1
FORMAT=$2
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case $FORMAT in
kvm|qcow2) FORMAT=qcow2
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QFORMAT=qcow2
HYPER=kvm
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;;
vmserver|vmdk)
FORMAT=vmdk
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QFORMAT=vmdk
HYPER=vmserver
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;;
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vbox|vdi) FORMAT=vdi
QFORMAT=vdi
HYPER=kvm
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;;
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vhd|vpc) FORMAT=vhd
QFORMAT=vpc
HYPER=kvm
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;;
xen) FORMAT=raw
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QFORMAT=raw
HYPER=xen
;;
raw) FORMAT=raw
QFORMAT=raw
HYPER=kvm
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;;
*) echo "Unknown format: $FORMAT"
usage
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esac
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case $RELEASE in
natty) ;;
maverick) ;;
lucid) ;;
karmic) ;;
jaunty) ;;
*) echo "Unknown release: $RELEASE"
usage
;;
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esac
# Install stuff if necessary
if [ -z `which vmbuilder` ]; then
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sudo apt-get install ubuntu-vm-builder
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fi
# Build the image
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TMPDISK=`mktemp imgXXXXXXXX`
SIZE=$[$ROOTSIZE+$SWAPSIZE+1]
dd if=/dev/null of=$TMPDISK bs=1M seek=$SIZE
sudo vmbuilder $HYPER ubuntu --suite $RELEASE \
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-o \
--rootsize=$ROOTSIZE \
--swapsize=$SWAPSIZE \
--tmpfs - \
--addpkg=openssh-server \
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--raw=$TMPDISK \
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if [ "$FORMAT" = "raw" ]; then
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# Get image
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mv $TMPDISK $RELEASE.$FORMAT
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else
# Convert image
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qemu-img convert -O $QFORMAT $TMPDISK $RELEASE.$FORMAT
rm $TMPDISK
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fi
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rm -rf ubuntu-$HYPER