simple_monitor.py

import os
import signal
import subprocess
import time
import psutil


# The os.setsid() is passed in the argument preexec_fn so
# it's run after the fork() and before  exec() to run the shell.

def kill_this_thing(proc_pid):
    process = psutil.Process(proc_pid)
    for proc in process.get_children(recursive=True):
        proc.kill()
    process.kill()

try:
	os.system('cd /root/flask_only_app && gunicorn --bind 0.0.0.0:5000 wsgi')
	os.system('beanstalkd -l 127.0.0.1 -p 11301')
	time.sleep(2)

	os.system('cd ~/yowsup-queue')
	os.system('rm -r ~/.yowsup/')
	time.sleep(2)

	proc = subprocess.Popen('/usr/bin/python3 /root/yowsup-queue/run.py​'.split(),shell=True)
	# time.sleep(10)

	try:
		proc.wait(timeout=10)
	except subprocess.TimeoutExpired:
		kill_this_thing(proc.pid)

	os.system('python3 /root/yowsup-queue/run.py​')



except Exception as e:
	print('send myself email here...')
except:
	print('send myself email here...')