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@KoltesDigital
Created December 29, 2014 22:18
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Init.d script for Redis (example with GitLab configuration). Retrieves the pid file and the port/socket connection from the configuration file. Sends SHUTDOWN to stop the server. Tested on Debian Wheezy.
#! /bin/bash
### BEGIN INIT INFO
# Provides: redis-gitlab
# Required-Start: $syslog
# Required-Stop: $syslog
# Should-Start: $local_fs
# Should-Stop: $local_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: redis-server - Persistent key-value db
# Description: redis-server - Persistent key-value db
### END INIT INFO
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin
DAEMON=/usr/local/bin/redis-server
CONFFILE=/home/git/redis.conf
NAME=redis-gitlab
DESC="Redis (GitLab)"
USER=git
[ -x $DAEMON ] || exit 0
PIDFILE=$(grep -oP "^pidfile +\K(.+)$" $CONFFILE)
LISTENING_PORT=$(grep -oP "^port +\K([0-9]+)$" $CONFFILE)
if [[ -z $LISTENING_PORT ]]
then
LISTENING_PORT=6379
elif [[ $LISTENING_PORT -eq 0 ]]
then
unset LISTENING_PORT
fi
LISTENING_SOCKET=$(grep -oP "^unixsocket +\K(.+)$" $CONFFILE)
[ -r /etc/default/$NAME ] && . /etc/default/$NAME
. /lib/init/vars.sh
. /lib/lsb/init-functions
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $USER --exec $DAEMON --test > /dev/null || return 1
start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $USER --exec $DAEMON -- $CONFFILE || return 2
}
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
[ -f $PIDFILE ] || return 1
PID=$(cat $PIDFILE)
[ -x /proc/${PID} ] || return 1
if [[ -n $LISTENING_PORT ]]
then
redis-cli -p $LISTENING_PORT SHUTDOWN
elif [[ -n $LISTENING_SOCKET ]]
then
redis-cli -s $LISTENING_SOCKET SHUTDOWN
else
return 2
fi
IT=50
while [ "$IT" -gt 0 -a -f $PIDFILE ]
do
IT=$((IT-1))
sleep .1
done
if [ "$IT" -gt 0 ]
then
return 0
else
return 2
fi
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
do_start
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
status)
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
restart|force-reload)
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
exit 3
;;
esac
:
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