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fork and reboot instead of just reboot; hopefully will make sure a mail

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is sent from cron even if a reboot happens
This commit is contained in:
Fredrik Eriksson 2019-04-17 08:50:26 +02:00
parent b6dc7b39ea
commit 5eda3b6e85
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GPG Key ID: 8825C73A0FD1502A
1 changed files with 84 additions and 41 deletions
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125
bin/sau
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@ -11,47 +11,7 @@ import sau
import sau.services
import sau.platforms
def main():
conf = sau.config
log = logging.getLogger(sau.LOGNAME)
platform = sau.platforms.get_platform()
reboot_required = False
reboot_recommended = False
if conf.getboolean('default', 'do_system_upgrade', fallback=True):
reboot_required = platform.system_upgrade()
if conf.getboolean('default', 'do_package_upgrade', fallback=True):
platform.pkg_upgrade()
if conf.getboolean('default', 'do_service_restart', fallback=True):
reboot_recommended = sau.services.restart_services()
if conf.getboolean('default', 'do_reboot', fallback=False):
if reboot_required:
log.warning('Rebooting because of a system upgrade')
elif reboot_recommended:
log.warning('Rebooting because service restarts did not close all deleted files')
if reboot_required or reboot_recommended:
# sleep a little to make sure the above log-messages has reached
# syslog before we reboot
time.sleep(1)
os.system('/sbin/reboot')
def _conf_level_to_logging_level(conf_level):
if conf_level.lower() == 'debug':
return logging.DEBUG
if conf_level.lower() == 'info':
return logging.INFO
if conf_level.lower() == 'warning':
return logging.WARNING
if conf_level.lower() == 'error':
return logging.error
return logging.DEBUG
if __name__ == '__main__':
def init():
sau.config = configparser.SafeConfigParser()
conf = sau.config
@ -82,4 +42,87 @@ if __name__ == '__main__':
handler.setFormatter(formatter)
handler.setLevel(conf_level)
log.addHandler(handler)
def fork_and_reboot():
log = logging.getLogger(sau.LOGNAME)
try:
pid = os.fork()
if pid != 0:
sys.exit(0)
except OSError as err:
log.error("Fork #1 failed when going for reboot: {}".format(err))
sys.exit(1)
os.chdir('/')
os.setsid()
os.umask(0)
try:
pid = os.fork()
if pid != 0:
sys.exit(0)
except OSError as err:
log.error("Fork #2 failed when going for reboot: {}".format(err))
sys.exit(1)
sys.stdout.flush()
sys.stderr.flush()
stdin = open(os.devnull, 'r')
stdout = open(os.devnull, 'a+')
stderr = open(os.devnull, 'a+')
os.dup2(stdin.fileno(), sys.stdin.fileno())
os.dup2(stdout.fileno(), sys.stdout.fileno())
os.dup2(stderr.fileno(), sys.stderr.fileno())
log.warning("New fork!")
# sleep for a short while to give parent time to exit
time.sleep(30)
try:
#log.error('would reboot now')
os.execv('/sbin/reboot', ['/sbin/reboot'])
except OSError as err:
log.error('Could not reboot: {}'.format(err))
sys.exit(1)
def main():
conf = sau.config
log = logging.getLogger(sau.LOGNAME)
platform = sau.platforms.get_platform()
reboot_required = False
reboot_recommended = False
if conf.getboolean('default', 'do_system_upgrade', fallback=True):
reboot_required = platform.system_upgrade()
if conf.getboolean('default', 'do_package_upgrade', fallback=True):
platform.pkg_upgrade()
if conf.getboolean('default', 'do_service_restart', fallback=True):
reboot_recommended = sau.services.restart_services()
if conf.getboolean('default', 'do_reboot', fallback=False):
if reboot_required:
log.warning('Rebooting because of a system upgrade')
elif reboot_recommended:
log.warning('Rebooting because service restarts did not close all deleted files')
if reboot_required or reboot_recommended:
fork_and_reboot()
def _conf_level_to_logging_level(conf_level):
if conf_level.lower() == 'debug':
return logging.DEBUG
if conf_level.lower() == 'info':
return logging.INFO
if conf_level.lower() == 'warning':
return logging.WARNING
if conf_level.lower() == 'error':
return logging.error
return logging.DEBUG
if __name__ == '__main__':
init()
sys.exit(main())