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# Copyright 2021-2024 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/>.
# T3417: migrate IS-IS tagNode to node as we can only have one IS-IS process
from vyos.configtree import ConfigTree
base = ['protocols', 'isis']
def migrate(config: ConfigTree) -> None:
if not config.exists(base):
# Nothing to do
return
# We need a temporary copy of the config
tmp_base = ['protocols', 'isis2']
config.copy(base, tmp_base)
# Now it's save to delete the old configuration
config.delete(base)
# Rename temporary copy to new final config (IS-IS domain key is static and no
# longer required to be set via CLI)
config.rename(tmp_base, 'isis')
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