Handle the redis.conf changes to disable redis-server persistence

during upgrade to r2.20
Closes-Bug: 1463749

Change-Id: I2777b763d3073f6b9dbe779597fddc95a8eadd55

contrail_provisioning/collector/upgrade.py

@@ -61,6 +61,11 @@ def upgrade(self):
                 if os.path.exists('/etc/contrail/supervisord_analytics_files/contrail-alarm-gen.ini'):
                       os.remove('/etc/contrail/supervisord_analytics_files/contrail-alarm-gen.ini')
 
+        #Disable redis server persistence since that is not used by analytics in r2.20
+        #bug-1463749
+        if self._args.to_rel >= 2.2:
+            self.fix_redis()
+
         self.restart()
 
 

contrail_provisioning/common/upgrade.py

@@ -172,6 +172,14 @@ def get_build(self, pkg='contrail-install-packages'):
             return None
         return pkg_rel
 
+    def fix_redis(self):
+       if os.path.exists('/var/lib/redis/dump.rdb'):
+           os.remove('/var/lib/redis/dump.rdb')
+       conf_file = '/etc/redis/redis.conf'
+       local("sudo sed -i 's/^save 900 1/#save 900 1/g' %s" % conf_file)
+       local("sudo sed -i 's/^save 300 10/#save 300 10/g' %s" % conf_file)
+       local("sudo sed -i 's/^save 60 10000/#save 60 10000/g' %s" % conf_file)
+
     def _upgrade(self):
         self._backup_config()
         if self.pdist in ['centos']:

contrail_provisioning/webui/upgrade.py

@@ -31,6 +31,10 @@ def restart(self):
     def upgrade(self):
         self._upgrade()
         self.upgrade_python_pkgs()
+        #Disable redis server persistence since that is not used by and webui in r2.20
+        #bug-1463749
+        if self._args.to_rel >= 2.2:
+            self.fix_redis()
         self.restart()