merge_app_setup.py

#!/usr/bin/env python3
from subprocess import check_output
from crontab import CronTab
import os

def replace_text(filename,find,replace):
	with open(filename, 'r') as file :
		filedata = file.read()

	filedata = filedata.replace(find, replace)

	with open(filename, 'w') as file:
		file.write(filedata)

def sudo_move_file(original,new_location):
	move_command = f'sudo mv {original} {new_location}'
	os.system(move_command)
	return

def open_app_port():
	hostname = check_output(['hostname']).decode().strip()
	command = f'gcloud compute firewall-rules create "merge-app-port" --allow tcp:4000 --source-tags="{hostname}" --source-ranges="0.0.0.0/0" --description="Open port for merge app"'
	os.system(command)
	return

def main():
	username = check_output(['whoami']).decode().strip()
	find_text = '****USERNAME GOES HERE****'
	replace_text('rc.local',find_text,username)
	replace_text('merge_app.py',find_text,username)
	cron  = CronTab(user=True) 
	new_cron_job = cron.new(command='00 12 * * * ~/forever_all.sh >/dev/null 2>&1', comment='Restart all forever processes daily at 12:00pm UTC')
	sudo_move_file('rc.local','/etc/')
	sudo_move_file('rc-local.service','/etc/systemd/system/')
	ownership_command = f'chmod 777 /home/{username}/*'
	change_file_ownership = os.system(ownership_command)
	open_app_port()

if __name__ == '__main__':
	main()