kupferbootstrap/forwarding.py
2021-08-08 18:32:42 +02:00

58 lines
1.3 KiB
Python

import click
import subprocess
from logger import logging, setup_logging, verbose_option
@click.command(name='forwarding')
@verbose_option
def cmd_forwarding(verbose):
setup_logging(verbose)
result = subprocess.run([
'sysctl',
'net.ipv4.ip_forward=1',
])
if result.returncode != 0:
logging.fatal(f'Failed to enable ipv4 forward via sysctl')
exit(1)
result = subprocess.run([
'iptables',
'-P',
'FORWARD',
'ACCEPT',
])
if result.returncode != 0:
logging.fatal(f'Failed set iptables rule')
exit(1)
result = subprocess.run([
'iptables',
'-A',
'POSTROUTING',
'-t',
'nat',
'-j',
'MASQUERADE',
'-s',
'172.16.42.0/24',
])
if result.returncode != 0:
logging.fatal(f'Failed set iptables rule')
exit(1)
result = subprocess.run([
'ssh',
'-o',
'GlobalKnownHostsFile=/dev/null',
'-o',
'UserKnownHostsFile=/dev/null',
'-o',
'StrictHostKeyChecking=no',
'-t',
'kupfer@172.16.42.1',
'sudo route add default gw 172.16.42.2',
])
if result.returncode != 0:
logging.fatal(f'Failed to add gateway over ssh')
exit(1)