291 lines
6.7 KiB
Bash
291 lines
6.7 KiB
Bash
#!/bin/bash
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#
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# Filename: /etc/init.d/target
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#
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# Bring up/down iscsi LIO target
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#
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#########################################################################
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#
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#
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# Copyright (c) 2016 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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DESC="target"
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STATUS_FILE="/var/run/lio-target.running"
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CINDER_CONF_DIR="/opt/cgcs/cinder"
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LIO_CONF_DIR="${CINDER_CONF_DIR}/iscsi-target"
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LIO_CONF_FILE="${LIO_CONF_DIR}/saveconfig.json"
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TGT_CONF_FILE="${CINDER_CONF_DIR}/data/tgt-initiators-15.12-upgrade.conf"
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BASE_TARGET_DIR="/etc/target"
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# Tools
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TARGETCLI="/usr/bin/targetcli"
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RTSTOOL="/usr/bin/cinder-rtstool"
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SM_QUERY="/usr/bin/sm-query"
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# This will log to /var/log/platform.log
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NAME=$(basename $0)
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function log () {
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logger -p local1.info "${NAME}: $1"
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}
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# Determine whether we are running on the active controller.
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# Return value: 0 - controller is active, 1 - not active.
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is_active_controller () {
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# service drbd-cgcs - should be active before iscsi one
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local SERVICE="drbd-cgcs"
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local ACTIVE=$(${SM_QUERY} service ${SERVICE} | \
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grep enabled-active)
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if [ -z "${ACTIVE}" ] ; then
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return 1
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else
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return 0
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fi
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}
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# This is a function that migrates 15.12 TGT Target configuration
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# to the LIO Target configuration file. The function is called only
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# once on the first "swact" to the LIO controller after
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# Software Upgrade.
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migrate_tgt () {
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log "Migrating 15.12 TGT iSCSI Target to LIO"
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# TGT configuration directory
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TGT_CONF_DIR="/opt/cgcs/cinder/data/volumes"
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# Start the LIO target and enable it for configuration
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/usr/bin/targetctl restore
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if [ $? -ne 0 ] ; then
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log "ERROR: trying to start the LIO target"
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return 1
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fi
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if [ ! -d ${TGT_CONF_DIR} ] ; then
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# User does not have attached volumes
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log "No volumes to migrate. Migration is done"
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return 0
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fi
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if [ ! "$(ls -A ${TGT_CONF_DIR})" ] ; then
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# Cinder volumes configuration is empty
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log "No volumes to migrate. Migration is done"
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return 0
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fi
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PORTAL_IP=""
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if [ -e /etc/hosts ] ; then
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PORTAL_IP=$(grep controller-cinder /etc/hosts | awk '{print $1}')
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fi
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# If no Portal IP is specified, use default IP address
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if [ -z "${PORTAL_IP}" ] ; then
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PORTAL_IP="0.0.0.0"
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fi
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for volume in `find ${TGT_CONF_DIR} -name "volume-*"`
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do
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TARGET_NAME=$(grep -n target ${volume} | awk '{ print $2}' | \
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sed 's/>//')
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DEVICE=$(grep -n backing-store ${volume} | awk '{print $3}')
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USERID=$(grep -n incominguser ${volume} | awk '{print $3}')
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PASSWORD=$(grep -n incominguser ${volume} | awk '{print $4}')
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INITIATOR=$(grep -n ${TARGET_NAME} ${TGT_CONF_FILE} | \
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awk '{ print $5 }')
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if [ ! "${TARGET_NAME}" -a "${DEVICE}" -a "${USERID}" -a \
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"${PASSWORD}" -a "${INITIATOR}" ] ; then
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log "ERROR: volume ${TARGET_NAME} configuration is not complete"
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continue
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fi
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# Add the volume to the LIO configuration
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${RTSTOOL} create ${DEVICE} ${TARGET_NAME} ${USERID} ${PASSWORD} \
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False -a${PORTAL_IP} -p3260 2>/dev/null
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if [ $? -ne 0 ] ; then
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log "ERROR: Target creation failed for volume ${TARGET_NAME}"
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continue
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fi
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log "Created target ${TARGET_NAME}"
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${RTSTOOL} add-initiator ${TARGET_NAME} ${USERID} ${PASSWORD} \
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${INITIATOR} 2>/dev/null
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if [ $? -ne 0 ] ; then
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log "ERROR: Add Initiator ${INITIATOR} failed for ${TARGET_NAME}"
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continue
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fi
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log "Added Initiator ${INITIATOR} for ${TARGET_NAME}"
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# Create a lun mapping from 1 to 0. Why? Well 15.12 used tgt which
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# uses lun 1 as the first volume, but lio uses lun 0. This mapping
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# allows iscsi references created in the old tgt realm to continue
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# to work.
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${TARGETCLI} "/iscsi/${TARGET_NAME}/tpg1/acls/${INITIATOR} create 1 0"
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if [ $? -ne 0 ] ; then
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log "ERROR: lun 1 mapping failed: Initiator ${INITIATOR} Target ${TARGET_NAME}"
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else
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log "Added lun 1 mapping: Initiator ${INITIATOR} Target ${TARGET_NAME}"
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fi
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done
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# Save and verify the new LIO configuration
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${RTSTOOL} save 2> /dev/null
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if [ $? -ne 0 ] ; then
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log "ERROR: Cannot save LIO Target configuration"
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return 1
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fi
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${RTSTOOL} verify 2> /dev/null
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if [ $? -ne 0 ] ; then
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log "ERROR: LIO Target verification failed"
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return 1
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fi
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log "TGT to LIO migration is done"
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return 0
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}
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start () {
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echo -n "Starting ${DESC}..."
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if ! is_active_controller ; then
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echo "failed. Controller is not active."
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exit 1
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fi
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if [ ! -L ${BASE_TARGET_DIR} ] ; then
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rm -rf ${BASE_TARGET_DIR}
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ln -s ${LIO_CONF_DIR} ${BASE_TARGET_DIR}
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fi
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if [ ! -d ${LIO_CONF_DIR} ] ; then
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# Create LIO configuration directory
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mkdir -p ${LIO_CONF_DIR} && log "Created ${LIO_CONF_DIR}"
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# Create default LIO configuration file
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${TARGETCLI} saveconfig ${LIO_CONF_FILE}
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fi
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if [ -e ${TGT_CONF_FILE} -a -s ${TGT_CONF_FILE} ] ; then
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migrate_tgt
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if [ $? -ne 0 ] ; then
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echo "tgt migration failed."
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exit 1
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fi
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mv -f ${TGT_CONF_FILE} ${TGT_CONF_FILE}.bak
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else
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/usr/bin/targetctl restore
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if [ $? -ne 0 ] ; then
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echo "failed."
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exit 1
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fi
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fi
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touch ${STATUS_FILE}
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echo "done."
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}
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stop () {
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echo -n "Stopping ${DESC}..."
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if [ ! -f ${STATUS_FILE} ] ; then
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echo "service has not been started"
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exit 0
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fi
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/usr/bin/targetctl clear
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RET=$?
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if [ -f ${STATUS_FILE} ] ; then
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rm -f ${STATUS_FILE}
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fi
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if [ ${RET} -ne 0 ] ; then
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echo "failed."
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exit 1
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fi
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echo -n
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}
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status()
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{
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if [ ! -f ${STATUS_FILE} ] ; then
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echo "${DESC} has not been started"
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exit 3
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else
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echo "${DESC} had been started"
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fi
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}
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restart () {
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stop
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start
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}
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reload()
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{
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if [ ! -f ${STATUS_FILE} ] ; then
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echo "${DESC} has not been started"
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exit 1
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fi
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/usr/bin/targetctl restore
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if [ $? -ne 0 ] ; then
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echo "failed."
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exit 1
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fi
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}
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case "$1" in
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start)
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start
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;;
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status)
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status
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;;
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stop|forcedstop)
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stop
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;;
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reload|force-reload)
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reload
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;;
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restart|try-restart)
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restart
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;;
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*)
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echo $"Usage: $0 {start|status|stop|forcedstop|restart|try-restart|reload|force-reload}"
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exit 1
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;;
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esac
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exit 0
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