33 lines
780 B
Python
33 lines
780 B
Python
from signal import SIGTERM, signal
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from subprocess import CalledProcessError, check_output
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from sys import exit
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from time import sleep
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PING_INTERVAL_IN_SECONDS = 80
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signal(SIGTERM, lambda signum, frame: exit(0))
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def getDefaultRoute():
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routes = check_output(['route', '-n']).decode('utf-8').splitlines()
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defaults = [r.split()[1] for r in routes if r.startswith('0.0.0.0')]
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return defaults[0] if defaults else None
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def keepalive(defaultRoute):
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while True:
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sleep(PING_INTERVAL_IN_SECONDS)
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ping(defaultRoute)
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def ping(address):
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try:
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check_output(['ping', '-c', '1', address])
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except CalledProcessError as e:
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pass
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defaultRoute = getDefaultRoute()
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keepalive(defaultRoute) if defaultRoute else print('No default route')
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