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|
#!/bin/sh
#-
# Copyright (c) 2014 The FreeBSD Foundation
# All rights reserved.
#
# This software was developed by Glen Barber under sponsorship
# from the FreeBSD Foundation.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# mk-openstack.sh: Create virtual machine disk images for Openstack
#
# $FreeBSD$
#
export PATH="/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin"
usage() {
echo "Usage:"
echo -n "$(basename ${0}) vm-openstack <base image>"
echo " <source tree> <dest dir> <disk image size> <vm image name>"
exit 1
}
panic() {
msg="${@}"
printf "${msg}\n"
if [ ! -z "${mddev}" ]; then
mdconfig -d -u ${mddev}
fi
# Do not allow one failure case to chain through any remaining image
# builds.
exit 0
}
vm_create_openstack() {
# Arguments:
# vm-openstack <base image> <source tree> <dest dir> <disk image size>
# <vm image name>
VMBASE="${1}"
WORLDDIR="${2}"
DESTDIR="${3}"
VMSIZE="${4}"
VMIMAGE="${5}"
if [ -z "${VMBASE}" -o -z "${WORLDDIR}" -o -z "${DESTDIR}" \
-o -z "${VMSIZE}" -o -z "${VMIMAGE}" ]; then
usage
fi
trap "umount ${DESTDIR}/dev ${DESTDIR}" INT QUIT TRAP ABRT TERM
i=0
mkdir -p ${DESTDIR}
truncate -s ${VMSIZE} ${VMBASE}
mddev=$(mdconfig -f ${VMBASE})
newfs -j /dev/${mddev}
mkdir -p ${DESTDIR}
mount /dev/${mddev} ${DESTDIR}
make -C ${WORLDDIR} DESTDIR=$(realpath ${DESTDIR}) \
installworld installkernel distribution || \
panic "\n\nCannot install the base system to ${DESTDIR}."
mount -t devfs devfs ${DESTDIR}/dev
chroot ${DESTDIR} /usr/bin/newaliases
echo '# Custom /etc/fstab for FreeBSD VM images' \
> ${DESTDIR}/etc/fstab
echo '/dev/gpt/rootfs / ufs rw 2 2' \
>> ${DESTDIR}/etc/fstab
echo '/dev/gpt/swapfs none swap sw 0 0' \
>> ${DESTDIR}/etc/fstab
chroot ${DESTDIR} /etc/rc.d/ldconfig forcestart
chroot ${DESTDIR} env ASSUME_ALWAYS_YES=yes /usr/sbin/pkg bootstrap -y
if [ ! -z "${VM_EXTRA_PACKAGES}" ]; then
chroot ${DESTDIR} env ASSUME_ALWAYS_YES=yes /usr/sbin/pkg install -y \
${VM_EXTRA_PACKAGES}
fi
rm -f ${DESTDIR}/etc/resolv.conf
echo 'sshd_enable="YES"' > ${DESTDIR}/etc/rc.conf
echo 'ifconfig_DEFAULT="SYNCDHCP"' >> ${DESTDIR}/etc/rc.conf
if [ ! -z "${VM_RC_LIST}" ]; then
for _rcvar in ${VM_RC_LIST}; do
echo ${_rcvar}_enable="YES" >> ${DESTDIR}/etc/rc.conf
done
fi
sync
while ! umount ${DESTDIR}/dev ${DESTDIR}; do
i=$(( $i + 1 ))
if [ $i -ge 10 ]; then
# This should never happen. But, it has happened.
msg="Cannot umount(8) ${DESTDIR}\n"
msg="${msg}Something has gone horribly wrong."
panic "${msg}"
fi
sleep 1
done
echo "Creating image... Please wait."
mkimg -f ${OPENSTACK_FORMAT} -s gpt \
-b /boot/pmbr -p freebsd-boot/bootfs:=/boot/gptboot \
-p freebsd-swap/swapfs::1G \
-p freebsd-ufs/rootfs:=${VMBASE} \
-o ${VMIMAGE}
return 0
}
main() {
cmd="${1}"
shift 1
if [ -e "${OPENSTACKCONF}" -a ! -c "${OPENSTACKCONF}" ]; then
. ${OPENSTACKCONF}
fi
case ${cmd} in
vm-openstack)
eval vm_create_openstack "$@" || return 0
;;
*|\?)
usage
;;
esac
return 0
}
main "$@"
|
