New init.d/tgtd script

tgtd.initd (text/plain), 3.65 KB, created by Forza on 2023-08-04 08:07:11 UTC

#!/sbin/openrc-run
# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

# shellcheck shell=sh

# Default configuration fike
: "${tgtd_conf:=/etc/tgt/targets.conf}"

pidfile="/var/run/${RC_SVCNAME}.pid"
command="/usr/sbin/tgtd"
command_args_background="--pid-file ${pidfile}"
extra_commands="forcedstop"
extra_started_commands="forcedreload reload"

depend() {
	use net
}

start_post() {
	# We need to wait for 1 second before do anything with tgtd.
 	sleep 1
  	# Put tgtd into "offline" state until all the targets are configured.
	# We don't want initiators to (re)connect and fail the connection
	# if configuration is not ready.
	tgtadm --op update --mode sys --name State -v offline

	# Configure the targets.
	if [ ! -r  "${tgtd_conf}" ]; then
		ewarn "Configuration file '${tgtd_conf}' not found!"
		ewarn "Leaving ${SVCNAME} running in 'offline' state."
		eend 0
	else
		ebegin "Loading target configuration"
			tgt-admin --update ALL -c "${tgtd_conf}"
		    retval=$?
			if [ $retval -ne 0 ]; then
				eerror "Could not load configuration!"
				stop
				exit $?
			fi
		eend $retval

		# Put tgtd into "ready" state.
		ebegin "Onlining targets. Accepting connections"
			tgtadm --op update --mode sys --name State -v ready
		eend $?
	fi
}

stop() {
	ebegin "Stopping ${SVCNAME}"
		# We need to force shutdown if system is restarting
		# or shutting down.
		if [ "$RC_RUNLEVEL" = "shutdown" ] ; then
		    forcedstop
		else
			# Remove all targets. Only remove targets which are not in use.
			tgt-admin --update ALL -c /dev/null >/dev/null 2>&1
			retval=$?
			if [ $retval -eq 107 ] ; then
			    einfo "tgtd is not running"
			else
				# tgtd will exit if all targets were removed.
				tgtadm --op delete --mode system >/dev/null 2>&1
				retval=$?
				if [ $retval -ne 0 ] ; then
				    eerror "WARNING: Some initiators are still connected - could not stop tgtd"
				fi
			fi
		fi
	eend $retval
}

forcedstop() {
	# NOTE: Forced shutdown of the iscsi target may cause data corruption
	# for initiators that are connected.
	ewarn "WARNING: Force-stopping target framework daemon"
	for i in 5 4 3 2 1; do
		einfo "Continuing in $i seconds..."
		sleep 1
	done

	# Offline everything first. May be needed if we're rebooting, but
	# expect the initiators to reconnect cleanly when we boot again
	# (i.e. we don't want them to reconnect to a tgtd which is still
	# onlineg, but the target is gone).
	tgtadm --op update --mode sys --name State -v offline >/dev/null 2>&1
	retval=$?
	if [ $retval -eq 107 ] ; then
	    einfo "tgtd is not running"
	else
		# Offline all targets
	    tgt-admin --offline ALL

	    # Remove all targets, even if they are still in use.
	    tgt-admin --update ALL -c /dev/null -f

	    # tgtd shuts down after all targets are removed.
	    tgtadm --op delete --mode system
	    retval=$?
	    if [ $retval -ne 0 ] ; then
			eerror "Failed to shutdown tgtd"
			eend 1
	    fi
	fi
	eend $retval
}

reload() {
	ebegin "Updating target framework daemon configuration"
		# Update configuration for targets. Only targets which
		# are not in use will be updated.
		tgt-admin --update ALL -c "${tgtd_conf}" >/dev/null 2>&1
		retval=$?
		if [ $retval -eq 107 ]; then
		    ewarn "WARNING: tgtd is not running"
		fi
	eend $retval
}

forcedreload() {
	ebegin "Updating target framework daemon configuration"
		ewarn "WARNING: Force-updating running configuration!"
		# Update configuration for targets, even those in use.
		tgt-admin --update ALL -f -c "${tgtd_conf}" >/dev/null 2>&1
		retval=$?
		if [ $retval -eq 107 ]; then
			ewarn "WARNING: tgtd is not running"
		fi
	eend $retval
}

status_post() {
	einfo "Run 'tgt-admin -s' to see detailed target info."
}