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# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library. If not, see <http://www.gnu.org/licenses/>.
# T5966:
# - migrate "service dns dynamic name <service> address <interface>"
# to "service dns dynamic name <service> address interface <interface>"
# when <interface> != 'web'
# - migrate "service dns dynamic name <service> web-options ..."
# to "service dns dynamic name <service> address web ..."
# when <interface> == 'web'
from vyos.configtree import ConfigTree
base_path = ['service', 'dns', 'dynamic', 'name']
def migrate(config: ConfigTree) -> None:
if not config.exists(base_path):
# Nothing to do
return
for service in config.list_nodes(base_path):
service_path = base_path + [service]
if config.exists(service_path + ['address']):
address = config.return_value(service_path + ['address'])
# 'address' is not a leaf node anymore, delete it first
config.delete(service_path + ['address'])
# When address is an interface (not 'web'), move it to 'address interface'
if address != 'web':
config.set(service_path + ['address', 'interface'], address)
else: # address == 'web'
# Relocate optional 'web-options' directly under 'address web'
if config.exists(service_path + ['web-options']):
# config.copy does not recursively create a path, so initialize it
config.set(service_path + ['address'])
config.copy(service_path + ['web-options'],
service_path + ['address', 'web'])
config.delete(service_path + ['web-options'])
# ensure that valueless 'address web' still exists even if there are no 'web-options'
if not config.exists(service_path + ['address', 'web']):
config.set(service_path + ['address', 'web'])
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