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sudo nano /etc/init.d/sidekiq
#!/bin/sh
# File: /etc/init.d/sidekiq
### BEGIN INIT INFO
# Provides: unicorn
# Required-Start: $local_fs $remote_fs $network $syslog
# Required-Stop: $local_fs $remote_fs $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts the sidekiq
# Description: starts sidekiq
### END INIT INFO
# Feel free to change any of the following variables for your app:
# Set user
USER=ubuntu
# Set app name
APP_NAME=safepal
# R.eplace [PATH_TO_RAILS_ROOT_FOLDER] with your application's path.
APP_ROOT=/var/www/$APP_NAME
# Set the environment. This can be changed to staging or development for staging
# servers.
RAILS_ENV=production
PID_FILE=$APP_ROOT/tmp/sidekiq.pid
LOG_FILE=$APP_ROOT/log/sidekiq.log
# A simple description for service output.
DESC="Sidekiq $APP_NAME - $RAILS_ENV"
SIDEKIQ="sidekiq"
SIDEKIQ_OPTS="--pidfile $PID_FILE --logfile $LOG_FILE --environment $RAILS_ENV --daemon"
CMD="cd $APP_ROOT; $SIDEKIQ $SIDEKIQ_OPTS"
REMOVE_PID_FILE="rm -f $PID_FILE"
# Give your upgrade action a timeout of 60 seconds.
TIMEOUT=60
# Store the action that we should take from the service command's first
# argument (e.g. start, stop, upgrade).
action="$1"
# Make sure the script exits if any variables are unset. This is short for
# set -o nounset.
set -u
# Set the location of the old pid. The old pid is the process that is getting
# replaced.
old_pid="$PID_FILE.oldbin"
# Make sure the APP_ROOT is actually a folder that exists. An error message from
# the cd command will be displayed if it fails.
cd $APP_ROOT || exit 1
# A function to send a signal to the current unicorn master process.
sig () {
test -s "$PID_FILE" && kill -$1 `cat $PID_FILE`
}
# Send a signal to the old process.
oldsig () {
test -s $old_pid && kill -$1 `cat $old_pid`
}
# A switch for handling the possible actions to take on the unicorn process.
case $action in
# Start the process by testing if it's there (sig 0), failing if it is,
# otherwise running the command as specified above.
start)
sig 0 && echo >&2 "$DESC is already running" && exit 0
su - $USER -c "$CMD"
;;
# Graceful shutdown. Send QUIT signal to the process. Requests will be
# completed before the processes are terminated.
stop)
sig QUIT && echo "Stopping $DESC" exit 0
su - $USER -c "$REMOVE_PID_FILE"
echo >&2 "Not running"
;;
# Quick shutdown - kills all workers immediately.
force-stop)
sig TERM && echo "Force-stopping $DESC" && exit 0
echo >&2 "Not running"
;;
# Graceful shutdown and then start.
restart)
sig QUIT && echo "Restarting $DESC" && sleep 2 \
&& su - $USER -c "$CMD" && exit 0
echo >&2 "Couldn't restart."
;;
# Reloads config file (unicorn.rb) and gracefully restarts all workers. This
# command won't pick up application code changes if you have `preload_app
# true` in your unicorn.rb config file.
reload)
sig HUP && echo "Reloading configuration for $DESC" && exit 0
echo >&2 "Couldn't reload configuration."
;;
# Re-execute the running binary, then gracefully shutdown old process. This
# command allows you to have zero-downtime deployments. The application may
# spin for a minute, but at least the user doesn't get a 500 error page or
# the like. Unicorn interprets the USR2 signal as a request to start a new
# master process and phase out the old worker processes. If the upgrade fails
# for some reason, a new process is started.
upgrade)
if sig USR2 && echo "Upgrading $DESC" && sleep 10 \
&& sig 0 && oldsig QUIT
then
n=$TIMEOUT
while test -s $old_pid && test $n -ge 0
do
printf '.' && sleep 1 && n=$(( $n - 1 ))
done
echo
if test $n -lt 0 && test -s $old_pid
then
echo >&2 "$old_pid still exists after $TIMEOUT seconds"
exit 1
fi
exit 0
fi
echo >&2 "Couldn't upgrade, starting 'su - $USER -c \"$CMD\"' instead"
su - $USER -c "$CMD"
;;
# A basic status checker. Just checks if the master process is responding to
# the `kill` command.
status)
sig 0 && echo >&2 "$DESC is running." && exit 0
echo >&2 "$DESC is not running."
;;
# Reopen all logs owned by the master and all workers.
reopen-logs)
sig USR1
;;
# Any other action gets the usage message.
*)
# Usage
echo >&2 "Usage: $0 <start|stop|restart|reload|upgrade|force-stop|reopen-logs>"
exit 1
;;
esac
sudo chmod 755 /etc/init.d/sidekiq
sudo update-rc.d sidekiq defaults 99 #add auto start
sudo update-rc.d sidekiq disable #remove auto start
sudo service sidekiq restart
Sidekiq.redis { |conn| conn.flushdb } - clear
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