bootstrap-vz/bootstrapvz/plugins/ntp/tasks.py

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from bootstrapvz.base import Task
from bootstrapvz.common import phases
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class AddNtpPackage(Task):
description = 'Adding NTP Package'
phase = phases.preparation
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@classmethod
def run(cls, info):
info.packages.add('ntp')
class SetNtpServers(Task):
description = 'Setting NTP servers'
phase = phases.system_modification
@classmethod
def run(cls, info):
import fileinput
import os
import re
ntp_path = os.path.join(info.root, 'etc/ntp.conf')
servers = list(info.manifest.plugins['ntp']['servers'])
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debian_ntp_server = re.compile('.*[0-9]\.debian\.pool\.ntp\.org.*')
for line in fileinput.input(files=ntp_path, inplace=True):
# Will write all the specified servers on the first match, then supress all other default servers
if re.match(debian_ntp_server, line):
while servers:
print 'server {server_address} iburst'.format(server_address=servers.pop(0))
else:
print line,