mirror of
https://github.com/hackacad/bastille.git
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203 lines
8.1 KiB
Bash
203 lines
8.1 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2018-2020, 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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. /usr/local/etc/bastille/bastille.conf
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usage() {
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error_exit "Usage: bastille clone [TARGET] [NEW_NAME] [IPADRESS]"
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}
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# Handle special-case commands first
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case "$1" in
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help|-h|--help)
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usage
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;;
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esac
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if [ $# -ne 2 ]; then
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usage
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fi
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NEWNAME="${1}"
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IP="${2}"
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validate_ip() {
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IPX_ADDR="ip4.addr"
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IP6_MODE="disable"
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ip6=$(echo "${IP}" | grep -E '^(([a-fA-F0-9:]+$)|([a-fA-F0-9:]+\/[0-9]{1,3}$))')
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if [ -n "${ip6}" ]; then
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info "Valid: (${ip6})."
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IPX_ADDR="ip6.addr"
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IP6_MODE="new"
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else
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local IFS
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if echo "${IP}" | grep -Eq '^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\/([0-9]|[1-2][0-9]|3[0-2]))?$'; then
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TEST_IP=$(echo "${IP}" | cut -d / -f1)
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IFS=.
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set ${TEST_IP}
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for quad in 1 2 3 4; do
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if eval [ \$$quad -gt 255 ]; then
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error_exit "Invalid: (${TEST_IP})"
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fi
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done
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if ifconfig | grep -qw "${TEST_IP}"; then
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warn "Warning: IP address already in use (${TEST_IP})."
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else
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info "Valid: (${IP})."
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fi
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else
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error_exit "Invalid: (${IP})."
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fi
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fi
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}
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update_jailconf() {
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# Update jail.conf
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JAIL_CONFIG="${bastille_jailsdir}/${NEWNAME}/jail.conf"
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if [ -f "${JAIL_CONFIG}" ]; then
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if ! grep -qw "path = ${bastille_jailsdir}/${NEWNAME}/root;" "${JAIL_CONFIG}"; then
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sed -i '' "s|host.hostname = ${TARGET};|host.hostname = ${NEWNAME};|" "${JAIL_CONFIG}"
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sed -i '' "s|exec.consolelog = .*;|exec.consolelog = ${bastille_logsdir}/${NEWNAME}_console.log;|" "${JAIL_CONFIG}"
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sed -i '' "s|path = .*;|path = ${bastille_jailsdir}/${NEWNAME}/root;|" "${JAIL_CONFIG}"
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sed -i '' "s|mount.fstab = .*;|mount.fstab = ${bastille_jailsdir}/${NEWNAME}/fstab;|" "${JAIL_CONFIG}"
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sed -i '' "s|${TARGET} {|${NEWNAME} {|" "${JAIL_CONFIG}"
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sed -i '' "s|${IPX_ADDR} = .*;|${IPX_ADDR} = ${IP};|" "${JAIL_CONFIG}"
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fi
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fi
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if grep -qw "vnet;" "${JAIL_CONFIG}"; then
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update_jailconf_vnet
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fi
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}
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update_jailconf_vnet() {
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bastille_jail_rc_conf="${bastille_jailsdir}/${NEWNAME}/root/etc/rc.conf"
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# Determine number of containers and define an uniq_epair
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local list_jails_num=$(bastille list jails | wc -l | awk '{print $1}')
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local num_range=$(expr "${list_jails_num}" + 1)
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jail_list=$(bastille list jail)
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for _num in $(seq 0 "${num_range}"); do
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if [ -n "${jail_list}" ]; then
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if ! grep -q "e0b_bastille${_num}" "${bastille_jailsdir}"/*/jail.conf; then
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uniq_epair="bastille${_num}"
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sed -i '' "s|vnet.interface = e0b_bastille.*;|vnet.interface = e0b_${uniq_epair};|" "${JAIL_CONFIG}"
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break
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fi
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fi
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done
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# Rename interface to new uniq_epair
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sed -i '' "s|ifconfig_e0b_bastille.*_name|ifconfig_e0b_${uniq_epair}_name|" "${bastille_jail_rc_conf}"
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# If 0.0.0.0 set DHCP, else set static IP address
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if [ "${IP}" == "0.0.0.0" ]; then
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sysrc -f "${bastille_jail_rc_conf}" ifconfig_vnet0="SYNCDHCP"
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else
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sysrc -f "${bastille_jail_rc_conf}" ifconfig_vnet0="inet ${IP}"
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fi
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}
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update_fstab() {
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# Update fstab to use the new name
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FSTAB_CONFIG="${bastille_jailsdir}/${NEWNAME}/fstab"
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if [ -f "${FSTAB_CONFIG}" ]; then
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FSTAB_RELEASE=$(grep -owE '([1-9]{2,2})\.[0-9](-RELEASE|-RELEASE-i386|-RC[1-2])|([0-9]{1,2}-stable-build-[0-9]{1,3})|(current-build)-([0-9]{1,3})|(current-BUILD-LATEST)|([0-9]{1,2}-stable-BUILD-LATEST)|(current-BUILD-LATEST)' "${FSTAB_CONFIG}")
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FSTAB_CURRENT=$(grep -w ".*/releases/.*/jails/${TARGET}/root/.bastille" "${FSTAB_CONFIG}")
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FSTAB_NEWCONF="${bastille_releasesdir}/${FSTAB_RELEASE} ${bastille_jailsdir}/${NEWNAME}/root/.bastille nullfs ro 0 0"
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if [ -n "${FSTAB_CURRENT}" ] && [ -n "${FSTAB_NEWCONF}" ]; then
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# If both variables are set, update as needed
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if ! grep -qw "${bastille_releasesdir}/${FSTAB_RELEASE}.*${bastille_jailsdir}/${NEWNAME}/root/.bastille" "${FSTAB_CONFIG}"; then
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sed -i '' "s|${FSTAB_CURRENT}|${FSTAB_NEWCONF}|" "${FSTAB_CONFIG}"
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fi
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fi
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fi
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}
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clone_jail() {
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# Attempt container clone
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info "Attempting to clone '${TARGET}' to ${NEWNAME}..."
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if ! [ -d "${bastille_jailsdir}/${NEWNAME}" ]; then
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if [ "${bastille_zfs_enable}" = "YES" ]; then
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if [ -n "${bastille_zfs_zpool}" ]; then
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# Replicate the existing container
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DATE=$(date +%F-%H%M%S)
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zfs snapshot -r "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${TARGET}@bastille_clone_${DATE}"
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zfs send -R "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${TARGET}@bastille_clone_${DATE}" | zfs recv "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${NEWNAME}"
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# Cleanup source temporary snapshots
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zfs destroy "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${TARGET}/root@bastille_clone_${DATE}"
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zfs destroy "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${TARGET}@bastille_clone_${DATE}"
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# Cleanup target temporary snapshots
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zfs destroy "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${NEWNAME}/root@bastille_clone_${DATE}"
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zfs destroy "${bastille_zfs_zpool}/${bastille_zfs_prefix}/jails/${NEWNAME}@bastille_clone_${DATE}"
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fi
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else
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# Just clone the jail directory
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# Check if container is running
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if [ -n "$(jls name | awk "/^${TARGET}$/")" ]; then
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error_exit "${TARGET} is running. See 'bastille stop ${TARGET}'."
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fi
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# Perform container file copy(archive mode)
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cp -a "${bastille_jailsdir}/${TARGET}" "${bastille_jailsdir}/${NEWNAME}"
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fi
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else
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error_exit "${NEWNAME} already exists."
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fi
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# Generate jail configuration files
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update_jailconf
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update_fstab
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# Display the exist status
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if [ "$?" -ne 0 ]; then
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error_exit "An error has occurred while attempting to clone '${TARGET}'."
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else
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info "Cloned '${TARGET}' to '${NEWNAME}' successfully."
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fi
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}
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## don't allow for dots(.) in container names
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if echo "${NEWNAME}" | grep -q "[.]"; then
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error_exit "Container names may not contain a dot(.)!"
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fi
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## check if ip address is valid
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if [ -n "${IP}" ]; then
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validate_ip
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else
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usage
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fi
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clone_jail
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