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# Copyright 2023-2024 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/>.
# T3316: Migrate to Kea
# - global-parameters will not function
# - shared-network-parameters will not function
# - subnet-parameters will not function
# - static-mapping-parameters will not function
# - host-decl-name is on by default, option removed
# - ping-check no longer supported
# - failover is default enabled on all subnets that exist on failover servers
from vyos.configtree import ConfigTree
base = ['service', 'dhcp-server']
def migrate(config: ConfigTree) -> None:
if not config.exists(base):
# Nothing to do
return
if config.exists(base + ['host-decl-name']):
config.delete(base + ['host-decl-name'])
if config.exists(base + ['global-parameters']):
config.delete(base + ['global-parameters'])
if config.exists(base + ['shared-network-name']):
for network in config.list_nodes(base + ['shared-network-name']):
base_network = base + ['shared-network-name', network]
if config.exists(base_network + ['ping-check']):
config.delete(base_network + ['ping-check'])
if config.exists(base_network + ['shared-network-parameters']):
config.delete(base_network +['shared-network-parameters'])
if not config.exists(base_network + ['subnet']):
continue
# Run this for every specified 'subnet'
for subnet in config.list_nodes(base_network + ['subnet']):
base_subnet = base_network + ['subnet', subnet]
if config.exists(base_subnet + ['enable-failover']):
config.delete(base_subnet + ['enable-failover'])
if config.exists(base_subnet + ['ping-check']):
config.delete(base_subnet + ['ping-check'])
if config.exists(base_subnet + ['subnet-parameters']):
config.delete(base_subnet + ['subnet-parameters'])
if config.exists(base_subnet + ['static-mapping']):
for mapping in config.list_nodes(base_subnet + ['static-mapping']):
if config.exists(base_subnet + ['static-mapping', mapping, 'static-mapping-parameters']):
config.delete(base_subnet + ['static-mapping', mapping, 'static-mapping-parameters'])
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