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https://github.com/BastilleBSD/bastille.git
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d6f2a4985e
When listing jails, releases, or alike sort them version-aware (natural) where 10 comes not after 1, but after 9.
341 lines
12 KiB
Bash
341 lines
12 KiB
Bash
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Copyright (c) 2018-2025, Christer Edwards <christer.edwards@gmail.com>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# * Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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. /usr/local/share/bastille/common.sh
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usage() {
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error_notify "Usage: bastille destroy [option(s)] JAIL|RELEASE"
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cat << EOF
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Options:
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-a | --auto Auto mode. Start/stop jail(s) if required.
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-c | --no-cache Do no destroy cache when destroying a release.
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-f | --force Force unmount any mounted datasets when destroying a jail or release (ZFS only).
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-y | --yes Do no prompt. Just destroy.
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-x | --debug Enable debug mode.
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EOF
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exit 1
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}
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destroy_jail() {
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local _jail="${1}"
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local OPTIONS=""
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bastille_jail_base="${bastille_jailsdir}/${_jail}"
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bastille_jail_log="${bastille_logsdir}/${_jail}_console.log"
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# Validate jail state before continuing
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check_target_is_stopped "${_jail}" || if [ "${AUTO}" -eq 1 ]; then
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bastille stop "${_jail}"
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else
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info "\n[${_jail}]:"
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error_notify "Jail is running."
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error_continue "Use [-a|--auto] to auto-stop the jail."
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fi
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info "\n[${_jail}]:"
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# Ask if user is sure they want to destroy the jail
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# but only if AUTO_YES=0
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if [ "${AUTO_YES}" -ne 1 ]; then
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warn "\nAttempting to destroy jail: ${_jail}\n"
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# shellcheck disable=SC3045
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read -p "Are you sure you want to continue? [y|n]:" _answer
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case "${_answer}" in
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[Yy]|[Yy][Ee][Ss])
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;;
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[Nn]|[Nn][Oo])
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error_exit "[ERROR]: Cancelled by user."
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;;
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*)
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error_exit "[ERROR]: Invalid input. Please answer 'y' or 'n'."
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;;
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esac
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fi
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if [ -d "${bastille_jail_base}" ]; then
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# Make sure no filesystem is currently mounted
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mount_points="$(mount | cut -d ' ' -f 3 | grep ${bastille_jail_base}/root/)"
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if [ -n "${mount_points}" ]; then
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error_notify "[ERROR]: Failed to destroy jail: ${_jail}"
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error_continue "Jail has mounted filesystems:\n$mount_points"
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fi
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echo "Destroying jail..."
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if checkyesno bastille_zfs_enable; then
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if [ -n "${bastille_zfs_zpool}" ]; then
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if [ -n "${_jail}" ]; then
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OPTIONS="-r"
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if [ "${FORCE}" = "1" ]; then
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OPTIONS="-rf"
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fi
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# Remove jail zfs dataset recursively, or abort if error thus precerving jail content.
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# This will deal with the common "cannot unmount 'XYZ': pool or dataset is busy"
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# unless the force option is defined by the user, otherwise will have a partially deleted jail.
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if ! zfs destroy "${OPTIONS}" "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${_jail}"; then
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error_continue "[ERROR]: Jail dataset(s) appears to be busy, exiting."
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fi
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fi
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fi
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fi
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if [ -d "${bastille_jail_base}" ]; then
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# Remove flags
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chflags -R noschg "${bastille_jail_base}"
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# Remove jail base
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rm -rf "${bastille_jail_base}"
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fi
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# Archive jail log
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if [ -f "${bastille_jail_log}" ]; then
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mv "${bastille_jail_log}" "${bastille_jail_log}"-"$(date +%F)"
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echo "Note: jail console logs archived."
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echo "${bastille_jail_log}-$(date +%F)"
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fi
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# Clear any active rdr rules
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if [ ! -z "$(pfctl -a "rdr/${_jail}" -Psn 2>/dev/null)" ]; then
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echo "Clearing RDR rules..."
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pfctl -a "rdr/${_jail}" -Fn
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fi
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fi
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}
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destroy_rel() {
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local OPTIONS
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## check release name match before destroy
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if [ -n "${NAME_VERIFY}" ]; then
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TARGET="${NAME_VERIFY}"
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else
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usage
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fi
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bastille_rel_base="${bastille_releasesdir}/${TARGET}" ## dir
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info "\nAttempting to destroy release: ${TARGET}"
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## check if this release have containers child
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BASE_HASCHILD="0"
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if [ -d "${bastille_jailsdir}" ]; then
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JAIL_LIST=$(ls -v --color=never "${bastille_jailsdir}" | sed "s/\n//g")
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for _jail in ${JAIL_LIST}; do
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if grep -qwo "${TARGET}" "${bastille_jailsdir}/${_jail}/fstab" 2>/dev/null; then
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error_notify "[ERROR]: (${_jail}) depends on ${TARGET} base."
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BASE_HASCHILD="1"
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elif checkyesno bastille_zfs_enable; then
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if [ -n "${bastille_zfs_zpool}" ]; then
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## check if this release have child clones
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if zfs list -H -t snapshot -r "${bastille_rel_base}" > /dev/null 2>&1; then
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SNAP_CLONE=$(zfs list -H -t snapshot -r "${bastille_rel_base}" 2> /dev/null | awk '{print $1}')
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for _snap_clone in ${SNAP_CLONE}; do
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if zfs list -H -o clones "${_snap_clone}" > /dev/null 2>&1; then
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CLONE_JAIL=$(zfs list -H -o clones "${_snap_clone}" | tr ',' '\n')
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CLONE_CHECK="${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${_jail}/root"
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if echo "${CLONE_JAIL}" | grep -qw "${CLONE_CHECK}"; then
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error_notify "[ERROR]: (${_jail}) depends on ${TARGET} base."
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BASE_HASCHILD="1"
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fi
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fi
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done
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fi
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fi
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fi
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done
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fi
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if [ ! -d "${bastille_rel_base}" ]; then
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error_exit "[ERROR]: Release base not found."
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else
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if [ "${BASE_HASCHILD}" -eq "0" ]; then
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echo "Deleting release base..."
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if checkyesno bastille_zfs_enable; then
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if [ -n "${bastille_zfs_zpool}" ]; then
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if [ -n "${TARGET}" ]; then
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OPTIONS="-r"
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if [ "${FORCE}" = "1" ]; then
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OPTIONS="-rf"
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fi
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zfs destroy "${OPTIONS}" "${bastille_zfs_zpool}/${bastille_zfs_prefix}/releases/${TARGET}"
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if [ "${NO_CACHE}" = "0" ]; then
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if [ -d "${bastille_cachedir}/${TARGET}" ]; then
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zfs destroy "${OPTIONS}" "${bastille_zfs_zpool}/${bastille_zfs_prefix}/cache/${TARGET}"
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fi
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fi
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fi
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fi
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fi
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if [ -d "${bastille_rel_base}" ]; then
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## removing all flags
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chflags -R noschg "${bastille_rel_base}"
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## remove jail base
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rm -rf "${bastille_rel_base}"
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fi
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if [ "${NO_CACHE}" = "0" ]; then
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## remove cache by default
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if [ -d "${bastille_cachedir}/${TARGET}" ]; then
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rm -rf "${bastille_cachedir:?}/${TARGET:?}"
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fi
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fi
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else
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error_notify "[ERROR]: Cannot destroy base with child containers."
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fi
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fi
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}
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# Handle options.
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AUTO=0
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AUTO_YES=0
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FORCE=0
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NO_CACHE=0
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while [ "$#" -gt 0 ]; do
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case "${1}" in
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-h|--help|help)
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usage
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;;
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-a|--auto)
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AUTO=1
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shift
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;;
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-c|--no-cache)
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NO_CACHE=1
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shift
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;;
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-f|--force)
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FORCE=1
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shift
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;;
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-y|--yes)
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AUTO_YES=1
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shift
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;;
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-x|--debug)
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enable_debug
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shift
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;;
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-*)
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for _opt in $(echo ${1} | sed 's/-//g' | fold -w1); do
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case ${_opt} in
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a) AUTO=1 ;;
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c) NO_CACHE=1 ;;
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f) FORCE=1 ;;
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y) AUTO_YES=1 ;;
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x) enable_debug ;;
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*) error_exit "[ERROR]: Unknown Option: \"${1}\"" ;;
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esac
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done
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shift
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;;
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*)
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break
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;;
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esac
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done
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if [ "$#" -ne 1 ]; then
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usage
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fi
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TARGET="${1}"
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bastille_root_check
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## check what should we clean
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case "${TARGET}" in
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*-CURRENT|*-CURRENT-I386|*-CURRENT-i386|*-current)
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## check for FreeBSD releases name
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '^([1-9]{2,2})\.[0-9](-CURRENT|-CURRENT-i386)$' | tr '[:lower:]' '[:upper:]' | sed 's/I/i/g')
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destroy_rel
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;;
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*-RELEASE|*-RELEASE-I386|*-RELEASE-i386|*-release|*-RC[1-9]|*-rc[1-9]|*-BETA[1-9])
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## check for FreeBSD releases name
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '^([0-9]{1,2})\.[0-9](-RELEASE|-RELEASE-i386|-RC[1-9]|-BETA[1-9])$' | tr '[:lower:]' '[:upper:]' | sed 's/I/i/g')
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destroy_rel
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;;
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*-stable-LAST|*-STABLE-last|*-stable-last|*-STABLE-LAST)
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## check for HardenedBSD releases name
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '^([1-9]{2,2})(-stable-last)$' | sed 's/STABLE/stable/g;s/last/LAST/g')
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destroy_rel
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;;
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*-stable-build-[0-9]*|*-STABLE-BUILD-[0-9]*)
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## check for HardenedBSD(specific stable build releases)
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '([0-9]{1,2})(-stable-build)-([0-9]{1,3})$' | sed 's/BUILD/build/g;s/STABLE/stable/g')
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destroy_rel
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;;
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*-stable-build-latest|*-stable-BUILD-LATEST|*-STABLE-BUILD-LATEST)
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## check for HardenedBSD(latest stable build release)
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '([0-9]{1,2})(-stable-build-latest)$' | sed 's/STABLE/stable/;s/build/BUILD/g;s/latest/LATEST/g')
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destroy_rel
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;;
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current-build-[0-9]*|CURRENT-BUILD-[0-9]*)
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## check for HardenedBSD(specific current build releases)
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '(current-build)-([0-9]{1,3})' | sed 's/BUILD/build/g;s/CURRENT/current/g')
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destroy_rel
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;;
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current-build-latest|current-BUILD-LATEST|CURRENT-BUILD-LATEST)
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## check for HardenedBSD(latest current build release)
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '(current-build-latest)$' | sed 's/CURRENT/current/;s/build/BUILD/g;s/latest/LATEST/g')
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destroy_rel
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;;
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Ubuntu_1804|Ubuntu_2004|Ubuntu_2204|UBUNTU_1804|UBUNTU_2004|UBUNTU_2204)
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## check for Linux releases
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '(Ubuntu_1804)$|(Ubuntu_2004)$|(Ubuntu_2204)$' | sed 's/UBUNTU/Ubuntu/g;s/ubuntu/Ubuntu/g')
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destroy_rel
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;;
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Debian10|Debian11|Debian12|DEBIAN10|DEBIAN11|DEBIAN12)
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## check for Linux releases
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NAME_VERIFY=$(echo "${TARGET}" | grep -iwE '(Debian10)$|(Debian11)$|(Debian12)$' | sed 's/DEBIAN/Debian/g')
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destroy_rel
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;;
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*)
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# Destroy targeted jail(s)
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set_target "${TARGET}" "reverse"
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for _jail in ${JAILS}; do
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destroy_jail "${_jail}"
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done
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;;
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esac
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