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Add lock file to Certbot

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This commit is contained in:
Brad Warren 2017-03-16 15:18:42 -07:00
parent cd89f39f62
commit 440d2d5255
1 changed files with 10 additions and 1 deletions
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11
certbot/main.py
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@ -8,6 +8,7 @@ import sys
import time
import traceback
import fasteners
import zope.component
from acme import jose
@ -893,7 +894,15 @@ def main(cli_args=sys.argv[1:]):
zope.component.provideUtility(report)
atexit.register(report.atexit_print_messages)
return config.func(config, plugins)
lock = fasteners.InterProcessLock(constants.LOCK_FILE)
logger.debug("Attempting to acquire lock file %s", constants.LOCK_FILE)
if not lock.acquire(blocking=False):
raise errors.Error("Another instance of Certbot is already running.")
try:
return config.func(config, plugins)
finally:
lock.release()
if __name__ == "__main__":