Plugin for configuring network interfaces inside a container.

[nodemanager.git] / sliver_lxc.py

diff --git a/sliver_lxc.py b/sliver_lxc.py
index 441b2e6..f2521a3 100644 (file)
--- a/sliver_lxc.py
+++ b/sliver_lxc.py
@@ -11,14 +11,14 @@ from string import Template
 import libvirt
 
 import logger
-import bwlimitlxc as bwlimit
+import plnode.bwlimit as bwlimit
 from initscript import Initscript
 from sliver_libvirt import Sliver_Libvirt
 
 class Sliver_LXC(Sliver_Libvirt, Initscript):
     """This class wraps LXC commands"""
 
-    SHELL = '/bin/sshsh'
+    SHELL = '/usr/sbin/vsh'
     TYPE = 'sliver.LXC'
     # Need to add a tag at myplc to actually use this account
     # type = 'sliver.LXC'
@@ -90,10 +90,15 @@ class Sliver_LXC(Sliver_Libvirt, Initscript):
         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...
 
@@ -141,10 +146,13 @@ class Sliver_LXC(Sliver_Libvirt, Initscript):
         else:
             logger.log("Cannot find XML template %s"%template_filename_sliceimage)
             return
+
+        interfaces = Sliver_Libvirt.get_interfaces_xml(rec)
+
         try:
             with open(template_filename) as f:
                 template = Template(f.read())
-                xml  = template.substitute(name=name, xid=xid)
+                xml  = template.substitute(name=name, interfaces=interfaces)
         except IOError:
             logger.log('Failed to parse or use XML template file %s'%template_filename)
             return