Autossh init script (Ubuntu) for ssh tunneling
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#! /bin/sh | |
# author: Clément Désiles | |
# date: 01/08/2016 | |
# source: https://gist.github.com/suma/8134207 | |
# source: http://stackoverflow.com/questions/34094792/autossh-pid-is-not-equal-to-the-one-in-pidfile-when-using-start-stop-daemon | |
### BEGIN INIT INFO | |
# Provides: autossh | |
# Required-Start: $remote_fs $syslog | |
# Required-Stop: $remote_fs $syslog | |
# Default-Start: 2 3 4 5 | |
# Default-Stop: 0 1 6 | |
# Short-Description: autossh initscript | |
# Description: establish a tunnelled connexion for remote access | |
### END INIT INFO | |
. /etc/environment | |
. /lib/init/vars.sh | |
. /lib/lsb/init-functions | |
TUNNEL_HOST=iam.perdu.com | |
TUNNEL_USER=toto | |
TUNNEL_PORT=42000 | |
MONITOR_PORT=42001 | |
KEY_PATH=/home/toto/.ssh/id_rsa | |
NAME=autossh | |
DAEMON=/usr/lib/autossh/autossh | |
AUTOSSH_ARGS="-M $MONITOR_PORT -f" | |
SSH_ARGS="-nNTv -o ServerAliveInterval=60 -o ServerAliveCountMax=3 -o IdentitiesOnly=yes -o StrictHostKeyChecking=no \ | |
-i $KEY_PATH -R $TUNNEL_PORT:localhost:22 $TUNNEL_USER@$TUNNEL_HOST" | |
DESC="autossh for reverse ssh" | |
SCRIPTNAME=/etc/init.d/$NAME | |
DAEMON_ARGS=" $AUTOSSH_ARGS $SSH_ARGS" | |
# Export PID for autossh | |
AUTOSSH_PIDFILE=/var/run/$NAME.pid | |
export AUTOSSH_PIDFILE | |
do_start() { | |
start-stop-daemon --start --background --name $NAME --exec $DAEMON --test > /dev/null || return 1 | |
start-stop-daemon --start --background --name $NAME --exec $DAEMON -- $DAEMON_ARGS || return 2 | |
} | |
do_stop() { | |
start-stop-daemon --stop --name $NAME --retry=TERM/5/KILL/9 --pidfile $AUTOSSH_PIDFILE --remove-pidfile | |
RETVAL="$?" | |
[ "$RETVAL" = 2 ] && return 2 | |
start-stop-daemon --stop --oknodo --retry=0/5/KILL/9 --exec $DAEMON | |
[ "$?" = 2 ] && return 2 | |
return "$RETVAL" | |
} | |
case "$1" in | |
start) | |
log_daemon_msg "Starting $DESC" "$NAME" | |
do_start | |
case "$?" in | |
0|1) log_end_msg 0 ;; | |
2) log_end_msg 1 ;; | |
esac | |
;; | |
stop) | |
log_daemon_msg "Stopping $DESC" "$NAME" | |
do_stop | |
case "$?" in | |
0|1) log_end_msg 0 ;; | |
2) log_end_msg 1 ;; | |
esac | |
;; | |
status) | |
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $? | |
;; | |
*) | |
echo "Usage: $SCRIPTNAME {start|stop|status|restart}" >&2 | |
exit 3 | |
;; | |
esac |
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