8 #from optparse import OptionParser
10 drop_capabilities='cap_sys_admin,cap_net_admin,cap_sys_boot,cap_sys_module'.split(',')
13 parser = OptionParser()
14 parser.add_option("-n", "--net",
15 action="store_true", dest="netns", default=False,
16 help="Enter network namespace")
17 parser.add_option("-m", "--mnt",
18 action="store_true", dest="mntns", default=False,
19 help="Enter mount namespace")
20 parser.add_option("-p", "--pid",
21 action="store_true", dest="pidns", default=False,
22 help="Enter pid namespace")
24 (options, args) = parser.parse_args()
31 print "You must specify a vm name"
35 cmd = 'grep %s /proc/*/cgroup | grep freezer'%slice_name
36 output = os.popen(cmd).readlines()
38 print "Error finding slice %s"%slice_name
45 path = l.split(':')[0]
46 comp = l.rsplit(':')[-1]
47 slice_name_check = comp.rsplit('/')[-1]
49 if (slice_name_check == slice_name):
51 pid = slice_path.split('/')[2]
52 cmdline = open('/proc/%s/cmdline'%pid).read().rstrip('\n\x00')
53 if (cmdline == '/sbin/init'):
54 slice_spec = slice_path
59 if (not slice_spec or not pid):
60 print "Not started: %s"%slice_name
65 for subsystem in ['cpuset','memory','fs','blkio']:
66 open('/sys/fs/cgroup/%s/libvirt/tasks'%subsystem,'w').write(pid)
68 print "Error assigning resources: %s"%slice_name
71 r1 = setns.chcontext('/proc/%s/ns/utc'%pid)
72 r2 = setns.chcontext('/proc/%s/ns/ipc'%pid)
73 path = '/proc/%s/ns/net'%pid
74 r3 = setns.chcontext(path)
76 open('/proc/lxcsu','w').write(pid)
77 open('/proc/pidsu','w').write(pid)
83 cap_args = map(lambda c:'--drop='+c, drop_capabilities)
86 os.execv('/usr/sbin/capsh',cap_args+['--']+args[1:])