import sys
import os, os.path
import grp
-import libvirt
from string import Template
+import libvirt
+
import logger
-import bwlimit
+import plnode.bwlimit as bwlimit
+from initscript import Initscript
from sliver_libvirt import Sliver_Libvirt
-class Sliver_LXC(Sliver_Libvirt):
+class Sliver_LXC(Sliver_Libvirt, Initscript):
"""This class wraps LXC commands"""
SHELL = '/bin/sshsh'
REF_IMG_BASE_DIR = '/vservers/.lvref'
CON_BASE_DIR = '/vservers'
+ def __init__ (self, rec):
+ name=rec['name']
+ Sliver_Libvirt.__init__ (self,rec)
+ Initscript.__init__ (self,name)
+
+ def configure (self, rec):
+ Sliver_Libvirt.configure (self,rec)
+
+ # in case we update nodemanager..
+ self.install_and_enable_vinit()
+ # do the configure part from Initscript
+ Initscript.configure(self,rec)
+
+ def start(self, delay=0):
+ if 'enabled' in self.rspec and self.rspec['enabled'] <= 0:
+ logger.log('sliver_lxc: not starting %s, is not enabled'%self.name)
+ return
+ # the generic /etc/init.d/vinit script is permanently refreshed, and enabled
+ self.install_and_enable_vinit()
+ Sliver_Libvirt.start (self, delay)
+ # if a change has occured in the slice initscript, reflect this in /etc/init.d/vinit.slice
+ self.refresh_slice_vinit()
+
+ def rerun_slice_vinit (self):
+ """This is called whenever the initscript code changes"""
+ # xxx - todo - not sure exactly how to:
+ # (.) invoke something in the guest
+ # (.) which options of systemctl should be used to trigger a restart
+ # should not prevent the first run from going fine hopefully
+ logger.log("WARNING: sliver_lxc.rerun_slice_vinit not implemented yet")
+
@staticmethod
def create(name, rec=None):
''' Create dirs, copy fs image, lxc_create '''
command = ['chmod', '755', containerDir]
logger.log_call(command, timeout=15*60)
- # customize prompt for slice owner
+ # customize prompt for slice owner, + LD_PRELOAD for transparently wrap bind
dot_profile=os.path.join(containerDir,"root/.profile")
+ ld_preload_msg="""# by default, we define this setting so that calls to bind(2),
+# when invoked on 0.0.0.0, get transparently redirected to the public interface of this node
+# see https://svn.planet-lab.org/wiki/LxcPortForwarding"""
with open(dot_profile,'w') as f:
f.write("export PS1='%s@\H \$ '\n"%(name))
+ f.write("%s\n"%ld_preload_msg)
+ f.write("export LD_PRELOAD=/etc/planetlab/lib/bind_public.so\n")
# TODO: set quotas...