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#!/usr/bin/env python3
# Delete "set system ntp server <n> dynamic" option
import sys
from vyos.configtree import ConfigTree
if (len(sys.argv) < 1):
print("Must specify file name!")
sys.exit(1)
file_name = sys.argv[1]
with open(file_name, 'r') as f:
config_file = f.read()
config = ConfigTree(config_file)
if not config.exists(['system', 'ntp']):
# Nothing to do
sys.exit(0)
else:
# Delete abandoned leaf node if found inside tag node for
# "set system ntp server <n> dynamic"
base = ['system', 'ntp', 'server']
for server in config.list_nodes(base):
if config.exists(base + [server, 'dynamic']):
config.delete(base + [server, 'dynamic'])
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
except OSError as e:
print("Failed to save the modified config: {}".format(e))
sys.exit(1)
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