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|
#!/bin/sh
### BEGIN INIT INFO
# Provides: autossh-tunnel-<%= name %>
# Required-Start: $local_fs $remote_fs $network
# Required-Stop: $local_fs $remote_fs $network
# Should-Start: $syslog
# Should-Stop: $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Autossh tunnel <%= name %>
# Description: Maintain an SSH tunnel between two hosts.
### END INIT INFO
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
USERNAME=<%= user %>
DESC="secure tunnel"
NAME=autossh-tunnel-<%= name %>
REAL_NAME=autossh
DAEMON=$(which $REAL_NAME)
PIDFILE="/var/run/autossh-tunnel-<%= name %>.pid"
SCRIPTNAME=/etc/init.d/$NAME
. /lib/lsb/init-functions
#
# AutoSSH configuration
#
AUTOSSH_ARGS="-M <%= real_monitor_port %> -N -L <%= bind_address %>:<%= port %>:<%= host %>:<%= hostport %> <%= ssh_extra_options %> -p <%= sshport %> <%= real_remote_user %>@<%= remote_host %>"
<% if gatetime != 'absent' -%>
AUTOSSH_GATETIME=<%= gatetime %>
<% end -%>
<% if first_poll != 'absent' -%>
AUTOSSH_FIRST_POLL=<%= first_poll %>
<% end -%>
<% if poll != 'absent' -%>
AUTOSSH_POLL=<%= poll %>
<% end -%>
<% if maxstart != 'absent' -%>
AUTOSSH_MAXSTART=<%= maxstart %>
<% end -%>
<% if maxlifetime != 'absent' -%>
AUTOSSH_MAXLIFETIME=<%= maxlifetime %>
<% end -%>
<% if logfile != 'absent' -%>
AUTOSSH_LOGFILE=<%= logfile %>
<% end -%>
# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0
#
# Function that starts the daemon/service
#
do_start()
{
# Export the autossh configuration
if [ -n "$AUTOSSH_GATETIME" ]; then
export AUTOSSH_GATETIME
fi
if [ -n "$AUTOSSH_FIRST_POLL" ]; then
export AUTOSSH_FIRST_POLL
fi
if [ -n "$AUTOSSH_POLL" ]; then
export AUTOSSH_POLL
fi
if [ -n "$AUTOSSH_MAXSTART" ]; then
export AUTOSSH_MAXSTART
fi
if [ -n "$AUTOSSH_MAXLIFETIME" ]; then
export AUTOSSH_MAXLIFETIME
fi
if [ -n "$AUTOSSH_LOGFILE" ]; then
export AUTOSSH_LOGFILE
fi
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
pidofproc -p "$PIDFILE" "$DAEMON" >/dev/null && return 1
start-stop-daemon --chuid $USERNAME --start --pidfile $PIDFILE --make-pidfile \
--exec $DAEMON --background -- $AUTOSSH_ARGS \
|| return 2
# if autossh was started but bad arguments were passed to ssh, autossh will
# return 0 but exit after a few seconds, so we wait just a bit to make sure
# everything is ok
sleep 5
pidofproc -p "$PIDFILE" "$DAEMON" >/dev/null || return 2
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --retry=TERM/10/KILL/5 --pidfile $PIDFILE --name $REAL_NAME
RETVAL="$?"
[ "$RETVAL" = 2 ] && return 2
# Wait for children to finish too if this is a daemon that forks
# and if the daemon is only ever run from this initscript.
# If the above conditions are not satisfied then add some other code
# that waits for the process to drop all resources that could be
# needed by services started subsequently. A last resort is to
# sleep for some time.
start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
[ "$?" = 2 ] && return 2
# Many daemons don't delete their pidfiles when they exit.
rm -f $PIDFILE
return "$RETVAL"
}
case "$1" in
start)
log_daemon_msg "Starting $DESC" "$NAME"
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_progress_msg "was already running" && log_end_msg 0 ;;
*) log_end_msg 1 ;; # Failed to start
esac
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0) log_end_msg 0 ;;
1) log_progress_msg "was already stopped" && log_end_msg 0 ;;
*) log_end_msg 1 ;; # Failed to stop
esac
;;
restart|force-reload)
#
# If the "reload" option is implemented then remove the
# 'force-reload' alias
#
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_progress_msg "was already running" && log_end_msg 0 ;;
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
log_end_msg 1 ;;
esac
;;
status)
status_of_proc -p "$PIDFILE" "$DAEMON" $NAME && exit 0 || exit $?
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|status}" >&2
exit 3
;;
esac
|
