Setting tag nodemanager-1.8-39

[nodemanager.git] / sliver_vs.py

diff --git a/sliver_vs.py b/sliver_vs.py
index 9a329cc..57de4f9 100644 (file)
--- a/sliver_vs.py
+++ b/sliver_vs.py
@@ -19,6 +19,7 @@ don't have to guess if there is a running process or not.
 import errno
 import traceback
 import os, os.path
+import sys
 import time
 
 import vserver
@@ -27,6 +28,7 @@ import accounts
 import logger
 import tools
 from threading import BoundedSemaphore
+import subprocess
 
 globalsem = BoundedSemaphore()
 
@@ -148,6 +150,9 @@ class Sliver_VS(accounts.Account, vserver.VServer):
     def destroy(name): logger.log_call('/usr/sbin/vuserdel', name)
 
     def configure(self, rec):
+        # in case we update nodemanager..
+        self.install_and_enable_vinit()
+
         new_rspec = rec['_rspec']
         if new_rspec != self.rspec:
             self.rspec = new_rspec
@@ -182,6 +187,11 @@ class Sliver_VS(accounts.Account, vserver.VServer):
             except:
                 logger.log_exc("vsliver_vs: %s: failed to create runlevel3 symlink %s"%rc3_link)
 
+    def rerun_slice_vinit(self):
+        command = "/usr/sbin/vserver %s exec /etc/rc.d/init.d/vinit restart" % (self.name)
+        logger.log("vsliver_vs: %s: Rerunning slice initscript: %s" % (self.name, command))
+        subprocess.call(command + "&", stdin=open('/dev/null', 'r'), stdout=open('/dev/null', 'w'), stderr=subprocess.STDOUT, shell=True)
+
     # this one checks for the existence of the slice initscript
     # install or remove the slice inistscript, as instructed by the initscript tag
     def refresh_slice_vinit(self):
@@ -190,6 +200,12 @@ class Sliver_VS(accounts.Account, vserver.VServer):
         if tools.replace_file_with_string(sliver_initscript,body,remove_if_empty=True,chmod=0755):
             if body:
                 logger.log("vsliver_vs: %s: Installed new initscript in %s"%(self.name,sliver_initscript))
+                if self.is_running():
+                    # Only need to rerun the initscript if the vserver is
+                    # already running. If the vserver isn't running, then the
+                    # initscript will automatically be started by
+                    # /etc/rc.d/vinit when the vserver is started.
+                    self.rerun_slice_vinit()
             else:
                 logger.log("vsliver_vs: %s: Removed obsolete initscript %s"%(self.name,sliver_initscript))
 
@@ -220,7 +236,7 @@ class Sliver_VS(accounts.Account, vserver.VServer):
     def is_running(self): 
         return vserver.VServer.is_running(self)
 
-    def set_resources(self,setup=False):
+    def set_resources(self):
         disk_max = self.rspec['disk_max']
         logger.log('%s: setting max disk usage to %d KiB' % (self.name, disk_max))
         try:  # if the sliver is over quota, .set_disk_limit will throw an exception
@@ -257,21 +273,29 @@ class Sliver_VS(accounts.Account, vserver.VServer):
         cpu_pct = self.rspec['cpu_pct']
         cpu_share = self.rspec['cpu_share']
 
-        if setup:
-            for key in self.rspec.keys():
-                if key.find('sysctl.') == 0:
-                    sysctl=key.split('.')
+        count = 1
+        for key in self.rspec.keys():
+            if key.find('sysctl.') == 0:
+                sysctl=key.split('.')
+                try:
+                    # /etc/vservers/<guest>/sysctl/<id>/
+                    dirname = "/etc/vservers/%s/sysctl/%s" % (self.name, count)
                     try:
-                        path="/proc/sys/%s" % ("/".join(sysctl[1:]))
-                        logger.log("%s: opening %s"%(self.name,path))
-                        flags = os.O_WRONLY
-                        fd = os.open(path, flags)
-                        logger.log("%s: writing %s=%s"%(self.name,key,self.rspec[key]))
-                        os.write(fd,self.rspec[key])
-                        os.close(fd)
-                    except IOError, e:
-                        logger.log("%s: could not set %s=%s"%(self.name,key,self.rspec[key]))
-                        logger.log("%s: error = %s"%(self.name,e))
+                        os.makedirs(dirname, 0755)
+                    except:
+                        pass
+                    setting = open("%s/setting" % dirname, "w")
+                    setting.write("%s\n" % key.lstrip("sysctl."))
+                    setting.close()
+                    value = open("%s/value" % dirname, "w")
+                    value.write("%s\n" % self.rspec[key])
+                    value.close()
+                    count += 1
+
+                    logger.log("sliver_vs: %s: writing %s=%s"%(self.name,key,self.rspec[key]))
+                except IOError, e:
+                    logger.log("sliver_vs: %s: could not set %s=%s"%(self.name,key,self.rspec[key]))
+                    logger.log("sliver_vs: %s: error = %s"%(self.name,e))
 
 
         if self.rspec['enabled'] > 0: