fix coresched locating cgroup and reduce verbosity

[nodemanager.git] / plugins / vsys.py

diff --git a/plugins/vsys.py b/plugins/vsys.py
index bac56a9..17a7baf 100644 (file)
--- a/plugins/vsys.py
+++ b/plugins/vsys.py
@@ -1,7 +1,9 @@
 """vsys configurator.  Maintains ACLs and script pipes inside vservers based on slice attributes."""
 
-import logger
 import os
+import subprocess
+
+import logger
 import tools
 
 VSYSCONF="/etc/vsys.conf"
@@ -11,7 +13,10 @@ def start():
     logger.log("vsys: plugin starting up...")
 
 def GetSlivers(data, config=None, plc=None):
-    """For each sliver with the vsys attribute, set the script ACL, create the vsys directory in the slice, and restart vsys."""
+    """
+    For each sliver with the vsys attribute:
+    set the script ACL, create the vsys directory in the slice, and restart vsys
+    """
 
     if 'slivers' not in data:
         logger.log_missing_data("vsys.GetSlivers",'slivers')
@@ -44,16 +49,24 @@ def GetSlivers(data, config=None, plc=None):
         restartService()
 
 # check for systemctl, use it if present
-def restartService ():
+# keyword being 'start', 'stop' or 'restart'
+def handleService(keyword):
     if tools.has_systemctl():
-        logger.log("vsys: restarting vsys service through systemctl")
-        logger.log_call(["systemctl", "restart", "vsys"])
+        logger.log("vsys: %s'ing vsys service through systemctl"%keyword)
+        return logger.log_call(["systemctl", keyword, "vsys"], timeout=5)
     else:
-        logger.log("vsys: restarting vsys service through /etc/init.d/vsys")
-        logger.log_call(["/etc/init.d/vsys", "restart", ])
+        logger.log("vsys: %s'ing vsys service through /etc/init.d/vsys"%keyword)
+        return logger.log_call(["/etc/init.d/vsys", keyword], timeout=5)
+
+def startService():
+    return handleService ('start')
+def stopService():
+    return handleService ('stop')
+def restartService():
+    return handleService ('restart')
 
 def createVsysDir(sliver):
-    '''Create /vsys directory in slice.  Update vsys conf file.'''
+    """Create /vsys directory in slice.  Update vsys conf file."""
     try:
         os.mkdir("/vservers/%s/vsys" % sliver)
         return True
@@ -158,21 +171,22 @@ def parseConf():
 
 # before shutting down slivers, it is safe to first remove them from vsys's scope
 # so that we are sure that no dangling open file remains
-# this will also restart vsys if needed
+# this will also stop vsys if needed (in which case it return True to tell caller to restart vsys once done)
 def removeSliverFromVsys (sliver):
     current_slivers=parseConf()
     new_slivers= [ s for s in current_slivers if s != sliver ]
     if writeConf (current_slivers, new_slivers):
-        trashSliverVsys (sliver)
-        restartService()
+        stopService()
+        trashVsysHandleInSliver (sliver)
+        return True
     else:
         logger.log("vsys.removeSliverFromConf: no need to remove %s"%sliver)
+        return False
 
-
-def trashSliverVsys (sliver):
+def trashVsysHandleInSliver (sliver):
     slice_vsys_area = "/vservers/%s/vsys"%sliver
     if not os.path.exists(slice_vsys_area):
-        logger.log("vsys.trashSliverVsys: no action needed, %s not found"%slice_vsys_area)
+        logger.log("vsys.trashVsysHandleInSliver: no action needed, %s not found"%slice_vsys_area)
         return
-    ret=subprocess.call([ 'rm', '-rf' , slice_vsys_area])
-    logger.log ("vsys.trashSliverVsys: Removed %s (retcod=%s)"%(slice_vsys_area,retcod))
+    retcod=subprocess.call([ 'rm', '-rf' , slice_vsys_area])
+    logger.log ("vsys.trashVsysHandleInSliver: Removed %s (retcod=%s)"%(slice_vsys_area,retcod))