#!/bin/sh

# Get a list of rack processes that are running
pgrep -u rails -f Rack | sort > /tmp/rails.actual.$$

# Get a list of rack processes we expect to be running
PASSENGER_INSTANCE_REGISTRY_DIR=<%= node[:passenger][:instance_registry_dir] %> passenger-status | awk '/PID:/ { print $3 }' | sort > /tmp/rails.expected.$$

# Get a list of unexpected rack processes
pids=$(comm -23 /tmp/rails.actual.$$ /tmp/rails.expected.$$)

# Kill any expected rack processes
[ -n "$pids" ] && kill -9 $pids > /dev/null 2>&1

# Remove our temporary files
rm -f /tmp/rails.actual.$$ /tmp/rails.expected.$$