vrrp: keepalived: T616: move configuration to volatile /run directory

Move keepalived configuration from /etc/keepalived to /run/keepalived.

(cherry picked from commit b243795eba1b36cadd81c3149e833bdf5c5bea70)

3 files changed, 21 insertions, 8 deletions

diff --git a/src/conf_mode/vrrp.py b/src/conf_mode/vrrp.py
index 4cee87003..cee6a9ba2 100755
--- a/src/conf_mode/vrrp.py
+++ b/src/conf_mode/vrrp.py
@@ -30,6 +30,7 @@ import vyos.config
 
 from vyos import ConfigError
 from vyos.util import call
+from vyos.util import makedir
 from vyos.template import render
 
 from vyos.ifconfig.vrrp import VRRP
@@ -136,7 +137,9 @@ def get_config(config=None):
         sync_groups.append(sync_group)
 
     # create a file with dict with proposed configuration
-    with open("{}.temp".format(VRRP.location['vyos']), 'w') as dict_file:
+    dirname = os.path.dirname(VRRP.location['vyos'])
+    makedir(dirname)
+    with open(VRRP.location['vyos'] + ".temp", 'w') as dict_file:
         dict_file.write(dumps({'vrrp_groups': vrrp_groups, 'sync_groups': sync_groups}))
 
     return (vrrp_groups, sync_groups)
diff --git a/src/etc/systemd/system/keepalived.service.d/override.conf b/src/etc/systemd/system/keepalived.service.d/override.conf
index 9fcabf652..e338b90a2 100644
--- a/src/etc/systemd/system/keepalived.service.d/override.conf
+++ b/src/etc/systemd/system/keepalived.service.d/override.conf
@@ -1,2 +1,12 @@
+[Unit]
+ConditionPathExists=
+ConditionPathExists=/run/keepalived/keepalived.conf
+After=
+After=vyos-router.service
+
 [Service]
 KillMode=process
+ExecStart=
+ExecStart=/usr/sbin/keepalived --use-file /run/keepalived/keepalived.conf --pid /run/keepalived/keepalived.pid --dont-fork $DAEMON_ARGS
+PIDFile=
+PIDFile=/run/keepalived/keepalived.pid
diff --git a/src/system/keepalived-fifo.py b/src/system/keepalived-fifo.py
index 7e2076820..1e749207b 100755
--- a/src/system/keepalived-fifo.py
+++ b/src/system/keepalived-fifo.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2020 VyOS maintainers and contributors
+# 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
@@ -13,7 +13,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
 
 import os
 import time
@@ -22,11 +21,12 @@ import argparse
 import threading
 import re
 import json
-from pathlib import Path
-from queue import Queue
 import logging
+
+from queue import Queue
 from logging.handlers import SysLogHandler
 
+from vyos.ifconfig.vrrp import VRRP
 from vyos.util import cmd
 
 # configure logging
@@ -60,7 +60,7 @@ class KeepalivedFifo:
     def _config_load(self):
         try:
             # read the dictionary file with configuration
-            with open('/run/keepalived_config.dict', 'r') as dict_file:
+            with open(VRRP.location['vyos'], 'r') as dict_file:
                 vrrp_config_dict = json.load(dict_file)
             self.vrrp_config = {'vrrp_groups': {}, 'sync_groups': {}}
             # save VRRP instances to the new dictionary
@@ -93,8 +93,8 @@ class KeepalivedFifo:
 
     # create FIFO pipe
     def pipe_create(self):
-        if Path(self.pipe_path).exists():
-            logger.info("PIPE already exist: {}".format(self.pipe_path))
+        if os.path.exists(self.pipe_path):
+            logger.info(f"PIPE already exist: {self.pipe_path}")
         else:
             os.mkfifo(self.pipe_path)