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uwsgi emperor init script for debian 7.x
#!/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: starts the uwsgi emperor app server
# Description: starts uwsgi emperor app server using start-stop-daemon
### END INIT INFO
set -e
PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/bin/uwsgi
RUN=/var/run/uwsgi
ENABLED_CONFIGS_DIR=/etc/uwsgi/apps-enabled
AVAILABLE_CONFIGS_DIR=/etc/uwsgi/apps-available
NAME=uwsgi
DESC=emperor
OWNER=www-data
GROUP=www-data
OP=$1
[[ -x $DAEMON ]] || exit 0
[[ -d $RUN ]] || mkdir $RUN && chown $OWNER.$GROUP $RUN
DAEMON_OPTS=""
# Include uwsgi defaults if available
if [[ -f /etc/default/uwsgi ]]; then
. /etc/default/uwsgi
fi
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 $ENABLED_CONFIGS_DIR \
--pidfile $PIDFILE \
--daemonize /var/log/$NAME/uwsgi-emperor.log"
if do_pid_check $PIDFILE; then
$NAME $DAEMON_OPTS $START_OPTS
else
echo "Already running!"
fi
}
send_sig()
{
local PIDFILE=$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
}
do_force_reload()
{
send_sig -15
}
get_status()
{
send_sig -10
}
enable_configs()
{
local configs
if [[ $# -eq 0 || ${1,,} = 'all' ]]; then
configs=$(diff $AVAILABLE_CONFIGS_DIR $ENABLED_CONFIGS_DIR \
| grep $AVAILABLE_CONFIGS_DIR \
| sed -re 's#.+: (.+)$#\1#')
else
configs=$@
fi
for c in $configs; do
echo -n "Enabling $c..."
[[ -f $ENABLED_CONFIGS_DIR/$c ]] && echo "Skipped" && continue
[[ -f $AVAILABLE_CONFIGS_DIR/$c ]] && \
ln -s $AVAILABLE_CONFIGS_DIR/$c $ENABLED_CONFIGS_DIR && \
echo "Done" && \
continue
echo "Error"
done
}
disable_configs()
{
local configs
if [[ $# -eq 0 || ${1,,} = 'all' ]]; then
configs=$(find $ENABLED_CONFIGS_DIR -type l -exec basename {} \;)
else
configs=$@
fi
for c in $configs; do
local config_path="$ENABLED_CONFIGS_DIR/$c"
echo -n "Disabling $c..."
[[ ! -L $config_path ]] && echo "Skipped" && continue
[[ -f $config_path ]] && rm $config_path && echo "Done" && continue
echo "Error"
done
}
case "$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."
;;
force-reload)
echo -n "Force-reloading $DESC: "
do_force_reload
echo "$NAME."
;;
restart)
echo "Restarting $DESC: "
do_stop
sleep 1
do_start
echo "$NAME."
;;
status)
get_status
;;
enable)
shift
enable_configs $@
;;
disable)
shift
disable_configs $@
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|reload|force-reload|status|enable|disable}">&2
exit 1
;;
esac
exit 0
@edu2004eu

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commented Jun 13, 2014

Thanks for this, really needed it. Just changed a few dirs and params and it worked out of the box.

Mersi :)

@Lelik13a

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commented Mar 23, 2016

Thanks for script.
When uwsgi starts, used command:
$NAME $DAEMON_OPTS $START_OPTS
If uwsgi not in system patch, this is wrong. I used:
$DAEMON $DAEMON_OPTS $START_OPTS

And $OWNER and $GROUP used only when create $RUN folder. I suppose use:
DAEMON_OPTS="--uid $OWNER --gid $GROUP"

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