cloudstack/tools/appliance/definitions/systemvmtemplate/zerodisk.sh

50 lines
1.6 KiB
Bash

#!/bin/bash
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
set -e
set -x
# clean up stuff copied in by veewee
function cleanup_veewee() {
# this has to be here since it is the last file to run (and we remove ourselves)
cd /home/cloud
rm -fv *.iso
rm -fv {apt_upgrade,authorized_keys,cleanup,install_systemvm_packages,zerodisk}.sh
rm -fv configure_{acpid,conntrack,grub,locale,networking,persistent_config,systemvm_services}.sh /home/cloud/install_systemvm_packages.sh
rm -fv .veewee_version .veewee_params .vbox_version
}
# Zero out the free space to save space in the final image:
function zero_disk() {
cleanup_veewee
for path in / /boot /var/log /tmp
do
dd if=/dev/zero of=${path}/zero bs=1M || true
sync
rm -f ${path}/zero
done
for partition in $(blkid -o list | grep ext | awk '{print $1}')
do
tune2fs -m0 $partition
done
}
return 2>/dev/null || zero_disk