From 5b1f06336b9cc9f27788fbcd426f2fd08431e4f8 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Sat, 13 Jun 2020 23:18:45 +0200
Subject: ntp: T2321: add VRF support

---
 src/conf_mode/ntp.py | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

(limited to 'src/conf_mode')

diff --git a/src/conf_mode/ntp.py b/src/conf_mode/ntp.py
index 05bc962c2..9180998aa 100755
--- a/src/conf_mode/ntp.py
+++ b/src/conf_mode/ntp.py
@@ -18,6 +18,7 @@ import os
 
 from copy import deepcopy
 from ipaddress import ip_network
+from netifaces import interfaces
 from sys import exit
 
 from vyos.config import Config
@@ -29,11 +30,13 @@ from vyos import airbag
 airbag.enable()
 
 config_file = r'/etc/ntp.conf'
+systemd_override = r'/etc/systemd/system/ntp.service.d/override.conf'
 
 default_config_data = {
     'servers': [],
     'allowed_networks': [],
-    'listen_address': []
+    'listen_address': [],
+    'vrf': ''
 }
 
 def get_config():
@@ -80,6 +83,10 @@ def get_config():
             server['options'] = options
             ntp['servers'].append(server)
 
+    node = ['vrf']
+    if conf.exists(node):
+        ntp['vrf'] = conf.return_value(node)
+
     return ntp
 
 def verify(ntp):
@@ -91,6 +98,9 @@ def verify(ntp):
     if len(ntp['allowed_networks']) and not len(ntp['servers']):
         raise ConfigError('NTP server not configured')
 
+    if ntp['vrf'] and ntp['vrf'] not in interfaces():
+        raise ConfigError('VRF "{vrf}" does not exist'.format(**ntp))
+
     return None
 
 def generate(ntp):
@@ -99,6 +109,8 @@ def generate(ntp):
         return None
 
     render(config_file, 'ntp/ntp.conf.tmpl', ntp)
+    render(systemd_override, 'ntp/override.conf.tmpl', ntp, trim_blocks=True)
+
     return None
 
 def apply(ntp):
@@ -107,7 +119,13 @@ def apply(ntp):
         call('systemctl stop ntp.service')
         if os.path.exists(config_file):
             os.unlink(config_file)
-    else:
+        if os.path.isfile(systemd_override):
+            os.unlink(systemd_override)
+
+    # Reload systemd manager configuration
+    call('systemctl daemon-reload')
+
+    if ntp:
         call('systemctl restart ntp.service')
 
     return None
-- 
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