Here's an alternative that I'm putting into extensions.py. Seems to do the
trick, but could be a little more elegant...
python's re lib isn't as helpful as perl's about capturing values.
import re
import time
import subprocess
def is_ntp_up():
ntpq_stat = sybprocess.call_check(["/usr/local/bin/ntpq", "-pn"],
buffsize=1024, shell=False, stderr=subprocess.STDOUT)
for line in ntpq_stat.split('\n'):
if re.match("\*\d+\..*\s+\S+\s+\d+", line):
fields = line.split()
if int(fields[2]) > -1 and int(fields[2]) < 16:
return 1
return 0
wait_loop_limit = 60 # wait up to 5 minutes for ntp to sync
wait_loops = 0
while is_ntp_up == 0:
time.sleep(5)
print "Waiting for NTP to come up"
wait_loops += 1
if wait_loops > wait_loop_limit:
raise Exception(" No ntp sync, exiting now")
Chris
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