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authorIndrajit Raychaudhuri <irc@indrajit.com>2023-11-30 19:16:53 -0600
committerIndrajit Raychaudhuri <irc@indrajit.com>2023-11-30 19:34:56 -0600
commit7cf735e11033bfaebf68c8544b7e77c8b28c5670 (patch)
tree8234d3f7523a347d7a25486e11628b1f045dce30 /src/migration-scripts/dns-dynamic/2-to-3
parent54591d0c477c188a95edafeb5ebb5ec5a2bf66eb (diff)
downloadvyos-1x-7cf735e11033bfaebf68c8544b7e77c8b28c5670.tar.gz
vyos-1x-7cf735e11033bfaebf68c8544b7e77c8b28c5670.zip
ddclient: T5791: Migration script for dynamic dns config path change
Diffstat (limited to 'src/migration-scripts/dns-dynamic/2-to-3')
-rw-r--r--src/migration-scripts/dns-dynamic/2-to-385
1 files changed, 85 insertions, 0 deletions
diff --git a/src/migration-scripts/dns-dynamic/2-to-3 b/src/migration-scripts/dns-dynamic/2-to-3
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--- /dev/null
+++ b/src/migration-scripts/dns-dynamic/2-to-3
@@ -0,0 +1,85 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2023 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# T5791:
+# - migrate "service dns dynamic address web web-options ..."
+# to "service dns dynamic name <service> address web ..." (per service)
+# - migrate "service dns dynamic address <address> rfc2136 <service> ..."
+# to "service dns dynamic name <service> address <interface> protocol 'nsupdate'"
+# - migrate "service dns dynamic address <interface> service <service> ..."
+# to "service dns dynamic name <service> address <interface> ..."
+
+import sys
+from vyos.configtree import ConfigTree
+
+if len(sys.argv) < 2:
+ 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)
+
+base_path = ['service', 'dns', 'dynamic']
+address_path = base_path + ['address']
+name_path = base_path + ['name']
+
+if not config.exists(address_path):
+ # Nothing to do
+ sys.exit(0)
+
+# config.copy does not recursively create a path, so initialize the name path
+if not config.exists(name_path):
+ config.set(name_path)
+
+for address in config.list_nodes(address_path):
+
+ # Move web-option as a configuration in each service instead of top level web-option
+ if config.exists(address_path + [address, 'web-options']) and address == 'web':
+ for svc_type in ['service', 'rfc2136']:
+ if config.exists(address_path + [address, svc_type]):
+ for svc_cfg in config.list_nodes(address_path + [address, svc_type]):
+ config.copy(address_path + [address, 'web-options'],
+ address_path + [address, svc_type, svc_cfg, 'web-options'])
+ config.delete(address_path + [address, 'web-options'])
+
+ for svc_type in ['service', 'rfc2136']:
+ if config.exists(address_path + [address, svc_type]):
+ # Move RFC2136 as service configuration, rename to avoid name conflict and set protocol to 'nsupdate'
+ if svc_type == 'rfc2136':
+ for rfc_cfg_old in config.list_nodes(address_path + [address, 'rfc2136']):
+ rfc_cfg_new = f'{rfc_cfg_old}-rfc2136'
+ config.rename(address_path + [address, 'rfc2136', rfc_cfg_old], rfc_cfg_new)
+ config.set(address_path + [address, 'rfc2136', rfc_cfg_new, 'protocol'], 'nsupdate')
+
+ # Add address as config value in each service before moving the service path
+ # And then copy the services from 'address <interface> service <service>' to 'name <service>'
+ for svc_cfg in config.list_nodes(address_path + [address, svc_type]):
+ config.set(address_path + [address, svc_type, svc_cfg, 'address'], address)
+ config.copy(address_path + [address, svc_type, svc_cfg], name_path + [svc_cfg])
+
+# Finally cleanup the old address path
+config.delete(address_path)
+
+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)