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@nealtodd nealtodd/uwsgi-init.d forked from mariuz/emperor.sh
Last active Aug 29, 2015

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uwsgi init.d for Wagtail on Debian
#!/usr/bin/env bash
### BEGIN INIT INFO
# Provides: emperor
# Required-Start: $all
# Required-Stop: $all
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: uwsgi for wagtail
# Description: uwsgi for wagtail
### END INIT INFO
set -e
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin
DAEMON=/usr/local/bin/uwsgi
RUN=/var/run/uwsgi
CONFIG_DIR=/etc/uwsgi/vassals
NAME=uwsgi
DESC=emperor
OWNER=root
GROUP=root
OP=$1
[[ -x $DAEMON ]] || exit 0
[[ -d $RUN ]] || mkdir $RUN && chown $OWNER.$GROUP $RUN
do_pid_check()
{
local PIDFILE=$1
[[ -f $PIDFILE ]] || return 0
local PID=$(cat $PIDFILE)
for p in $(pgrep $NAME); do
[[ $p == $PID ]] && return 1
done
return 0
}
do_start()
{
local PIDFILE=$RUN/$NAME.pid
local START_OPTS=" \
--emperor $CONFIG_DIR \
--pidfile $PIDFILE \
--uid $OWNER --gid $GROUP \
--daemonize /var/log/$NAME/uwsgi-emperor.log"
if do_pid_check $PIDFILE; then
$NAME $START_OPTS
else
echo "Already running!"
fi
}
send_sig()
{
local PIDFILE=$RUN/$NAME.pid
set +e
[[ -f $PIDFILE ]] && kill $1 $(cat $PIDFILE) > /dev/null 2>&1
set -e
}
wait_and_clean_pidfile()
{
local PIDFILE=$RUN/uwsgi.pid
until do_pid_check $PIDFILE; do
echo -n "";
done
rm -f $PIDFILE
}
do_stop()
{
send_sig -3
wait_and_clean_pidfile
}
do_reload()
{
send_sig -1
}
case "$OP" in
start)
echo "Starting $DESC: "
do_start
echo "$NAME."
;;
stop)
echo -n "Stopping $DESC: "
do_stop
echo "$NAME."
;;
reload)
echo -n "Reloading $DESC: "
do_reload
echo "$NAME."
;;
restart)
echo "Restarting $DESC: "
do_stop
sleep 1
do_start
echo "$NAME."
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|reload}">&2
exit 1
;;
esac
exit 0
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