On 27/04/11 06:33, Mike Orr wrote:
I run my apps under supervisor, which is a Python daemon manager.
On Tue, Apr 26, 2011 at 3:26 PM, Krishnakant Mane<[email protected]> wrote:
Hello all.
I have a pylons application running in a virtual environment.
Can some one give me a hint as to how I could have the virtual environment
started and the paster serve production.ini be run as a daemon?
I looked on the internet and found one shell script.
I am paisting the content below but not sure if that shell script
initialises the venv.
#! /bin/sh
### BEGIN INIT INFO
# Provides:<my_app> application instance
# Required-Start: $all
# Required-Stop: $all
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts instance of<my_app> app
# Description: starts instance of<my app> app using start-stop-daemon
### END INIT INFO
############### EDIT ME ##################
# path to workingenv install if any
PYTHONPATH=<path to pylons workingenv>/lib/python2.4
# path to app
APP_PATH=<path to my_app>
# path to paster bin
DAEMON=<path to pylons workingenv>/bin/paster
# startup args
DAEMON_OPTS=" serve --log-file<my logfile> --server-name=main
production.ini"
# script name
NAME=<my_rc_script.sh>
# app name
DESC=<my_app>
# pylons user
RUN_AS=<user to switch to after startup>
PID_FILE=/var/run/paster.pid
############### END EDIT ME ##################
test -x $DAEMON || exit 0
set -e
case "$1" in
start)
echo -n "Starting $DESC: "
start-stop-daemon -d $APP_PATH -c $RUN_AS --start --background
--pidfile $PID_FILE --make-pidfile --exec $DAEMON -- $DAEMON_OPTS
echo "$NAME."
;;
stop)
echo -n "Stopping $DESC: "
start-stop-daemon --stop --pidfile $PID_FILE
echo "$NAME."
;;
restart|force-reload)
echo -n "Restarting $DESC: "
start-stop-daemon --stop --pidfile $PID_FILE
sleep 1
start-stop-daemon -d $APP_PATH -c $RUN_AS --start --background
--pidfile $PID_FILE --make-pidfile --exec $DAEMON -- $DAEMON_OPTS
echo "$NAME."
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|force-reload}">&2
exit 1
;;
esac
exit 0
Can this be a more simpler thing than what I paisted?
I did not understand the opts that were passed to the daemon.
I can figure out production.ini but why the other one?
happy hacking.
Krishnakant.
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I would also like to use superwiser.
Can you give some hint?
By the way I think I must make a daemon any ways because I have to make
an automated system where my application is started as a background
process as soon as the machine starts.
So I don't expect the end user to do a paster serve --daemonise
production.ini manuall.
Can this too be automated?
And yes there is also this step of starting the virtual environment
which should also be automated.
I guess this certainly need some kind of a shell script?
Happy hacking.
Krishnakant.
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