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-rwxr-xr-xsrc/migration-scripts/conntrack/1-to-232
-rwxr-xr-xsrc/migration-scripts/interfaces/18-to-19145
-rwxr-xr-xsrc/migration-scripts/nat/4-to-56
-rwxr-xr-xsrc/migration-scripts/quagga/6-to-7116
-rwxr-xr-xsrc/migration-scripts/quagga/7-to-8122
-rwxr-xr-xsrc/migration-scripts/rpki/0-to-163
-rwxr-xr-xsrc/migration-scripts/system/18-to-194
-rwxr-xr-xsrc/migration-scripts/vrf/0-to-1112
8 files changed, 598 insertions, 2 deletions
diff --git a/src/migration-scripts/conntrack/1-to-2 b/src/migration-scripts/conntrack/1-to-2
new file mode 100755
index 000000000..4fc88a1ed
--- /dev/null
+++ b/src/migration-scripts/conntrack/1-to-2
@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+
+# Delete "set system conntrack modules gre" 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', 'conntrack', 'modules', 'gre']):
+ # Nothing to do
+ sys.exit(0)
+else:
+ # Delete abandoned node
+ config.delete(['system', 'conntrack', 'modules', 'gre'])
+
+ 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)
diff --git a/src/migration-scripts/interfaces/18-to-19 b/src/migration-scripts/interfaces/18-to-19
new file mode 100755
index 000000000..06e07572f
--- /dev/null
+++ b/src/migration-scripts/interfaces/18-to-19
@@ -0,0 +1,145 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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/>.
+
+from sys import argv
+from sys import exit
+from vyos.configtree import ConfigTree
+
+def migrate_ospf(config, path, interface):
+ path = path + ['ospf']
+ if config.exists(path):
+ new_base = ['protocols', 'ospf', 'interface']
+ config.set(new_base)
+ config.set_tag(new_base)
+ config.copy(path, new_base + [interface])
+ config.delete(path)
+
+ # if "ip ospf" was the only setting, we can clean out the empty
+ # ip node afterwards
+ if len(config.list_nodes(path[:-1])) == 0:
+ config.delete(path[:-1])
+
+def migrate_ospfv3(config, path, interface):
+ path = path + ['ospfv3']
+ if config.exists(path):
+ new_base = ['protocols', 'ospfv3', 'interface']
+ config.set(new_base)
+ config.set_tag(new_base)
+ config.copy(path, new_base + [interface])
+ config.delete(path)
+
+ # if "ipv6 ospfv3" was the only setting, we can clean out the empty
+ # ip node afterwards
+ if len(config.list_nodes(path[:-1])) == 0:
+ config.delete(path[:-1])
+
+def migrate_rip(config, path, interface):
+ path = path + ['rip']
+ if config.exists(path):
+ new_base = ['protocols', 'rip', 'interface']
+ config.set(new_base)
+ config.set_tag(new_base)
+ config.copy(path, new_base + [interface])
+ config.delete(path)
+
+ # if "ip rip" was the only setting, we can clean out the empty
+ # ip node afterwards
+ if len(config.list_nodes(path[:-1])) == 0:
+ config.delete(path[:-1])
+
+def migrate_ripng(config, path, interface):
+ path = path + ['ripng']
+ if config.exists(path):
+ new_base = ['protocols', 'ripng', 'interface']
+ config.set(new_base)
+ config.set_tag(new_base)
+ config.copy(path, new_base + [interface])
+ config.delete(path)
+
+ # if "ipv6 ripng" was the only setting, we can clean out the empty
+ # ip node afterwards
+ if len(config.list_nodes(path[:-1])) == 0:
+ config.delete(path[:-1])
+
+if __name__ == '__main__':
+ if (len(argv) < 1):
+ print("Must specify file name!")
+ exit(1)
+
+ file_name = argv[1]
+ with open(file_name, 'r') as f:
+ config_file = f.read()
+
+ config = ConfigTree(config_file)
+
+ #
+ # Migrate "interface ethernet eth0 ip ospf" to "protocols ospf interface eth0"
+ #
+ for type in config.list_nodes(['interfaces']):
+ for interface in config.list_nodes(['interfaces', type]):
+ ip_base = ['interfaces', type, interface, 'ip']
+ ipv6_base = ['interfaces', type, interface, 'ipv6']
+ migrate_rip(config, ip_base, interface)
+ migrate_ripng(config, ipv6_base, interface)
+ migrate_ospf(config, ip_base, interface)
+ migrate_ospfv3(config, ipv6_base, interface)
+
+ vif_path = ['interfaces', type, interface, 'vif']
+ if config.exists(vif_path):
+ for vif in config.list_nodes(vif_path):
+ vif_ip_base = vif_path + [vif, 'ip']
+ vif_ipv6_base = vif_path + [vif, 'ipv6']
+ ifname = f'{interface}.{vif}'
+
+ migrate_rip(config, vif_ip_base, ifname)
+ migrate_ripng(config, vif_ipv6_base, ifname)
+ migrate_ospf(config, vif_ip_base, ifname)
+ migrate_ospfv3(config, vif_ipv6_base, ifname)
+
+
+ vif_s_path = ['interfaces', type, interface, 'vif-s']
+ if config.exists(vif_s_path):
+ for vif_s in config.list_nodes(vif_s_path):
+ vif_s_ip_base = vif_s_path + [vif_s, 'ip']
+ vif_s_ipv6_base = vif_s_path + [vif_s, 'ipv6']
+
+ # vif-c interfaces MUST be migrated before their parent vif-s
+ # interface as the migrate_*() functions delete the path!
+ vif_c_path = ['interfaces', type, interface, 'vif-s', vif_s, 'vif-c']
+ if config.exists(vif_c_path):
+ for vif_c in config.list_nodes(vif_c_path):
+ vif_c_ip_base = vif_c_path + [vif_c, 'ip']
+ vif_c_ipv6_base = vif_c_path + [vif_c, 'ipv6']
+ ifname = f'{interface}.{vif_s}.{vif_c}'
+
+ migrate_rip(config, vif_c_ip_base, ifname)
+ migrate_ripng(config, vif_c_ipv6_base, ifname)
+ migrate_ospf(config, vif_c_ip_base, ifname)
+ migrate_ospfv3(config, vif_c_ipv6_base, ifname)
+
+
+ ifname = f'{interface}.{vif_s}'
+ migrate_rip(config, vif_s_ip_base, ifname)
+ migrate_ripng(config, vif_s_ipv6_base, ifname)
+ migrate_ospf(config, vif_s_ip_base, ifname)
+ migrate_ospfv3(config, vif_s_ipv6_base, ifname)
+
+ 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))
+ exit(1)
diff --git a/src/migration-scripts/nat/4-to-5 b/src/migration-scripts/nat/4-to-5
index dda191719..b791996e2 100755
--- a/src/migration-scripts/nat/4-to-5
+++ b/src/migration-scripts/nat/4-to-5
@@ -36,9 +36,15 @@ if not config.exists(['nat']):
exit(0)
else:
for direction in ['source', 'destination']:
+ # If a node doesn't exist, we obviously have nothing to do.
if not config.exists(['nat', direction]):
continue
+ # However, we also need to handle the case when a 'source' or 'destination' sub-node does exist,
+ # but there are no rules under it.
+ if not config.list_nodes(['nat', direction]):
+ continue
+
for rule in config.list_nodes(['nat', direction, 'rule']):
base = ['nat', direction, 'rule', rule]
diff --git a/src/migration-scripts/quagga/6-to-7 b/src/migration-scripts/quagga/6-to-7
new file mode 100755
index 000000000..25cf5eebd
--- /dev/null
+++ b/src/migration-scripts/quagga/6-to-7
@@ -0,0 +1,116 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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/>.
+
+# - T3037, BGP address-family ipv6-unicast capability dynamic does not exist in
+# FRR, there is only a base, per neighbor dynamic capability, migrate config
+
+from sys import argv
+from sys import exit
+from vyos.configtree import ConfigTree
+from vyos.template import is_ipv4
+from vyos.template import is_ipv6
+
+if (len(argv) < 2):
+ print("Must specify file name!")
+ exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+ config_file = f.read()
+
+base = ['protocols', 'bgp']
+config = ConfigTree(config_file)
+
+if not config.exists(base):
+ # Nothing to do
+ exit(0)
+
+# Check if BGP is actually configured and obtain the ASN
+asn_list = config.list_nodes(base)
+if asn_list:
+ # There's always just one BGP node, if any
+ bgp_base = base + [asn_list[0]]
+
+ for neighbor_type in ['neighbor', 'peer-group']:
+ if not config.exists(bgp_base + [neighbor_type]):
+ continue
+ for neighbor in config.list_nodes(bgp_base + [neighbor_type]):
+ # T2844 - add IPv4 AFI disable-send-community support
+ send_comm_path = bgp_base + [neighbor_type, neighbor, 'disable-send-community']
+ if config.exists(send_comm_path):
+ new_base = bgp_base + [neighbor_type, neighbor, 'address-family', 'ipv4-unicast']
+ config.set(new_base)
+ config.copy(send_comm_path, new_base + ['disable-send-community'])
+ config.delete(send_comm_path)
+
+ cap_dynamic = False
+ peer_group = None
+ for afi in ['ipv4-unicast', 'ipv6-unicast']:
+ afi_path = bgp_base + [neighbor_type, neighbor, 'address-family', afi]
+ # Exit loop early if AFI does not exist
+ if not config.exists(afi_path):
+ continue
+
+ cap_path = afi_path + ['capability', 'dynamic']
+ if config.exists(cap_path):
+ cap_dynamic = True
+ config.delete(cap_path)
+
+ # We have now successfully migrated the address-family
+ # specific dynamic capability to the neighbor/peer-group
+ # level. If this has been the only option under the
+ # address-family nodes, we can clean them up by checking if
+ # no other nodes are left under that tree and if so, delete
+ # the parent.
+ #
+ # We walk from the most inner node to the most outer one.
+ cleanup = -1
+ while len(config.list_nodes(cap_path[:cleanup])) == 0:
+ config.delete(cap_path[:cleanup])
+ cleanup -= 1
+
+ peer_group_path = afi_path + ['peer-group']
+ if config.exists(peer_group_path):
+ if ((is_ipv4(neighbor) and afi == 'ipv4-unicast') or
+ (is_ipv6(neighbor) and afi == 'ipv6-unicast')):
+ peer_group = config.return_value(peer_group_path)
+
+ config.delete(peer_group_path)
+
+ # We have now successfully migrated the address-family
+ # specific peer-group to the neighbor level. If this has
+ # been the only option under the address-family nodes, we
+ # can clean them up by checking if no other nodes are left
+ # under that tree and if so, delete the parent.
+ #
+ # We walk from the most inner node to the most outer one.
+ cleanup = -1
+ while len(config.list_nodes(peer_group_path[:cleanup])) == 0:
+ config.delete(peer_group_path[:cleanup])
+ cleanup -= 1
+
+ if cap_dynamic:
+ config.set(bgp_base + [neighbor_type, neighbor, 'capability', 'dynamic'])
+ if peer_group:
+ config.set(bgp_base + [neighbor_type, neighbor, 'peer-group'], value=peer_group)
+
+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))
+ exit(1)
diff --git a/src/migration-scripts/quagga/7-to-8 b/src/migration-scripts/quagga/7-to-8
new file mode 100755
index 000000000..9c277a6f1
--- /dev/null
+++ b/src/migration-scripts/quagga/7-to-8
@@ -0,0 +1,122 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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/>.
+
+# - T2450: drop interface-route and interface-route6 from "protocols static"
+
+from sys import argv
+from sys import exit
+
+from vyos.configtree import ConfigTree
+
+def migrate_interface_route(config, base, path, route_route6):
+ """ Generic migration function which can be called on every instance of
+ interface-route, beeing it ipv4, ipv6 or nested under the "static table" nodes.
+
+ What we do?
+ - Drop 'interface-route' or 'interface-route6' and migrate the route unter the
+ 'route' or 'route6' tag node.
+ """
+ if config.exists(base + path):
+ for route in config.list_nodes(base + path):
+ interface = config.list_nodes(base + path + [route, 'next-hop-interface'])
+
+ tmp = base + path + [route, 'next-hop-interface']
+ for interface in config.list_nodes(tmp):
+ new_base = base + [route_route6, route, 'interface']
+ config.set(new_base)
+ config.set_tag(base + [route_route6])
+ config.set_tag(new_base)
+ config.copy(tmp + [interface], new_base + [interface])
+
+ config.delete(base + path)
+
+def migrate_route(config, base, path, route_route6):
+ """ Generic migration function which can be called on every instance of
+ route, beeing it ipv4, ipv6 or even nested under the static table nodes.
+
+ What we do?
+ - for consistency reasons rename next-hop-interface to interface
+ - for consistency reasons rename next-hop-vrf to vrf
+ """
+ if config.exists(base + path):
+ for route in config.list_nodes(base + path):
+ next_hop = base + path + [route, 'next-hop']
+ if config.exists(next_hop):
+ for gateway in config.list_nodes(next_hop):
+ # IPv4 routes calls it next-hop-interface, rename this to
+ # interface instead so it's consitent with IPv6
+ interface_path = next_hop + [gateway, 'next-hop-interface']
+ if config.exists(interface_path):
+ config.rename(interface_path, 'interface')
+
+ # When VRFs got introduced, I (c-po) named it next-hop-vrf,
+ # we can also call it vrf which is simply shorter.
+ vrf_path = next_hop + [gateway, 'next-hop-vrf']
+ if config.exists(vrf_path):
+ config.rename(vrf_path, 'vrf')
+
+
+if (len(argv) < 2):
+ print("Must specify file name!")
+ exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+ config_file = f.read()
+
+base = ['protocols', 'static']
+
+config = ConfigTree(config_file)
+if not config.exists(base):
+ # Nothing to do
+ exit(0)
+
+# Migrate interface-route into route
+migrate_interface_route(config, base, ['interface-route'], 'route')
+
+# Migrate interface-route6 into route6
+migrate_interface_route(config, base, ['interface-route6'], 'route6')
+
+# Cleanup nodes inside route
+migrate_route(config, base, ['route'], 'route')
+
+# Cleanup nodes inside route6
+migrate_route(config, base, ['route6'], 'route6')
+
+#
+# PBR table cleanup
+table_path = base + ['table']
+if config.exists(table_path):
+ for table in config.list_nodes(table_path):
+ # Migrate interface-route into route
+ migrate_interface_route(config, table_path + [table], ['interface-route'], 'route')
+
+ # Migrate interface-route6 into route6
+ migrate_interface_route(config, table_path + [table], ['interface-route6'], 'route6')
+
+ # Cleanup nodes inside route
+ migrate_route(config, table_path + [table], ['route'], 'route')
+
+ # Cleanup nodes inside route6
+ migrate_route(config, table_path + [table], ['route6'], 'route6')
+
+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))
+ exit(1)
diff --git a/src/migration-scripts/rpki/0-to-1 b/src/migration-scripts/rpki/0-to-1
new file mode 100755
index 000000000..5b4893205
--- /dev/null
+++ b/src/migration-scripts/rpki/0-to-1
@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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/>.
+
+from sys import exit
+from sys import argv
+from vyos.configtree import ConfigTree
+
+if (len(argv) < 1):
+ print("Must specify file name!")
+ exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+ config_file = f.read()
+
+base = ['protocols', 'rpki']
+config = ConfigTree(config_file)
+
+# Nothing to do
+if not config.exists(base):
+ exit(0)
+
+if config.exists(base + ['cache']):
+ preference = 1
+ for cache in config.list_nodes(base + ['cache']):
+ address_node = base + ['cache', cache, 'address']
+ if config.exists(address_node):
+ address = config.return_value(address_node)
+ # We do not longer support the address leafNode, RPKI cache server
+ # IP address is now used from the tagNode
+ config.delete(address_node)
+ # VyOS 1.2 had no per instance preference, setting new defaults
+ config.set(base + ['cache', cache, 'preference'], value=preference)
+ # Increase preference for the next caching peer - actually VyOS 1.2
+ # supported only one but better save then sorry (T3253)
+ preference += 1
+
+ # T3293: If the RPKI cache name equals the configured address,
+ # renaming is not possible, as rename expects the new path to not
+ # exist.
+ if not config.exists(base + ['cache', address]):
+ config.rename(base + ['cache', cache], address)
+
+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))
+ exit(1)
diff --git a/src/migration-scripts/system/18-to-19 b/src/migration-scripts/system/18-to-19
index dd2abce00..fd0e15d42 100755
--- a/src/migration-scripts/system/18-to-19
+++ b/src/migration-scripts/system/18-to-19
@@ -80,8 +80,8 @@ else:
dhcp_interfaces.append(f'{intf}.{vif_s}')
# try vif-c
- if config.exists(intf_base + ['vif-c', vif_c]):
- for vif_c in config.list_nodes(vif_s_base + ['vif-c', vif_c]):
+ if config.exists(intf_base + ['vif-c']):
+ for vif_c in config.list_nodes(vif_s_base + ['vif-c']):
vif_c_base = vif_s_base + ['vif-c', vif_c]
if config.exists(vif_c_base + ['address']):
for addr in config.return_values(vif_c_base + ['address']):
diff --git a/src/migration-scripts/vrf/0-to-1 b/src/migration-scripts/vrf/0-to-1
new file mode 100755
index 000000000..29b2fab74
--- /dev/null
+++ b/src/migration-scripts/vrf/0-to-1
@@ -0,0 +1,112 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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/>.
+
+# - T2450: drop interface-route and interface-route6 from "protocols vrf"
+
+from sys import argv
+from sys import exit
+from vyos.configtree import ConfigTree
+
+if (len(argv) < 2):
+ print("Must specify file name!")
+ exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+ config_file = f.read()
+
+base = ['protocols', 'vrf']
+config = ConfigTree(config_file)
+
+if not config.exists(base):
+ # Nothing to do
+ exit(0)
+
+for vrf in config.list_nodes(base):
+ static_base = base + [vrf, 'static']
+ if not config.exists(static_base):
+ continue
+
+ #
+ # Migrate interface-route into route
+ #
+ interface_route_path = static_base + ['interface-route']
+ if config.exists(interface_route_path):
+ for route in config.list_nodes(interface_route_path):
+ interface = config.list_nodes(interface_route_path + [route, 'next-hop-interface'])
+
+ tmp = interface_route_path + [route, 'next-hop-interface']
+ for interface in config.list_nodes(tmp):
+ new_base = static_base + ['route', route, 'interface']
+ config.set(new_base)
+ config.set_tag(new_base)
+ config.copy(tmp + [interface], new_base + [interface])
+
+ config.delete(interface_route_path)
+
+ #
+ # Migrate interface-route6 into route6
+ #
+ interface_route_path = static_base + ['interface-route6']
+ if config.exists(interface_route_path):
+ for route in config.list_nodes(interface_route_path):
+ interface = config.list_nodes(interface_route_path + [route, 'next-hop-interface'])
+
+ tmp = interface_route_path + [route, 'next-hop-interface']
+ for interface in config.list_nodes(tmp):
+ new_base = static_base + ['route6', route, 'interface']
+ config.set(new_base)
+ config.set_tag(new_base)
+ config.copy(tmp + [interface], new_base + [interface])
+
+ config.delete(interface_route_path)
+
+ #
+ # Cleanup nodes inside route
+ #
+ route_path = static_base + ['route']
+ if config.exists(route_path):
+ for route in config.list_nodes(route_path):
+ next_hop = route_path + [route, 'next-hop']
+ if config.exists(next_hop):
+ for gateway in config.list_nodes(next_hop):
+ interface_path = next_hop + [gateway, 'next-hop-interface']
+ if config.exists(interface_path):
+ config.rename(interface_path, 'interface')
+ vrf_path = next_hop + [gateway, 'next-hop-vrf']
+ if config.exists(vrf_path):
+ config.rename(vrf_path, 'vrf')
+
+ #
+ # Cleanup nodes inside route6
+ #
+ route_path = static_base + ['route6']
+ if config.exists(route_path):
+ for route in config.list_nodes(route_path):
+ next_hop = route_path + [route, 'next-hop']
+ if config.exists(next_hop):
+ for gateway in config.list_nodes(next_hop):
+ vrf_path = next_hop + [gateway, 'next-hop-vrf']
+ if config.exists(vrf_path):
+ config.rename(vrf_path, 'vrf')
+
+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))
+ exit(1)