1 files changed, 76 insertions, 0 deletions
diff --git a/src/conf_mode/vrf_vni.py b/src/conf_mode/vrf_vni.py
new file mode 100755
index 000000000..87ee8f2d1
--- /dev/null
+++ b/src/conf_mode/vrf_vni.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2020-2021 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.config import Config
+from vyos.template import render_to_string
+from vyos import ConfigError
+from vyos import frr
+from vyos import airbag
+airbag.enable()
+
+frr_daemon = 'zebra'
+
+def get_config(config=None):
+    if config:
+        conf = config
+    else:
+        conf = Config()
+
+    # This script only works with a passed VRF name
+    if len(argv) < 1:
+        raise NotImplementedError
+    vrf = argv[1]
+
+    # "assemble" dict - easier here then use a full blown get_config_dict()
+    # on a single leafNode
+    vni = { 'vrf' : vrf }
+    tmp = conf.return_value(['vrf', 'name', vrf, 'vni'])
+    if tmp: vni.update({ 'vni' : tmp })
+
+    return vni
+
+def verify(vni):
+    return None
+
+def generate(vni):
+    vni['new_frr_config'] = render_to_string('frr/vrf-vni.frr.tmpl', vni)
+    return None
+
+def apply(vni):
+    # add configuration to FRR
+    frr_cfg = frr.FRRConfig()
+    frr_cfg.load_configuration(frr_daemon)
+    frr_cfg.modify_section(f'^vrf [a-zA-Z-]*$', '')
+    frr_cfg.add_before(r'(interface .*|line vty)', vni['new_frr_config'])
+    frr_cfg.commit_configuration(frr_daemon)
+
+    # Save configuration to /run/frr/config/frr.conf
+    frr.save_configuration()
+
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)