print "Not started: %s"%slice_name
exit(1)
-r1 = setns.chcontext('/proc/%s/ns/utc'%pid)
+# Enter cgroups
+try:
+ for subsystem in ['cpuset','memory','blkio']:
+ open('/sys/fs/cgroup/%s/libvirt/lxc/%s/tasks'%(subsystem,slice_name),'w').write(str(os.getpid()))
+
+except:
+ print "Error assigning resources: %s"%slice_name
+ exit(1)
+
+# If the slice is frozen, then we'll get an EBUSY when trying to write to the task
+# list for the freezer cgroup. Since the user couldn't do anything anyway, it's best
+# in this case to error out the shell. (an alternative would be to un-freeze it,
+# add the task, and re-freeze it)
+try:
+ f=open('/sys/fs/cgroup/freezer/libvirt/lxc/%s/tasks'%(slice_name),'w')
+ f.write(str(os.getpid()))
+ # note: we need to call f.close() explicitly, or we'll get an exception in
+ # the object destructor, which will not be caught
+ f.close()
+except:
+ print "Error adding task to freezer cgroup. Slice is probably frozen: %s" % slice_name
+ exit(1)
+
+r1 = setns.chcontext('/proc/%s/ns/uts'%pid)
r2 = setns.chcontext('/proc/%s/ns/ipc'%pid)
-path = '/proc/%s/ns/net'%pid
-r3 = setns.chcontext(path)
+r3 = setns.chcontext('/proc/%s/ns/net'%pid)
open('/proc/lxcsu','w').write(pid)
open('/proc/pidsu','w').write(pid)
cap_args = map(lambda c:'--drop='+c, drop_capabilities)
if (pid == 0):
- os.execv('/usr/sbin/capsh',cap_args+['--']+args[1:])
+ os.execv('/usr/sbin/capsh',cap_args+['--','--login']+args[1:])
+ os.environ['SHELL'] = '/bin/sh'
else:
os.waitpid(pid,0)