def unmount_host_device(device, cid):
try:
cpid = JBoxVol.get_pid(cid)
cumount = create_container_mnt_command(cpid, "umount %s" % (device,))
crmdev = create_container_mnt_command(cpid, "rm %s" % (device,))
cumount()
crmdev()
return True
except:
JBoxVol.log_exception("Exception unmounting device %s from %s", device. cid)
return False
def unmount_host_device(device, cid):
try:
cpid = JBoxVol.get_pid(cid)
cumount = create_container_mnt_command(cpid,
"umount %s" % (device, ))
crmdev = create_container_mnt_command(cpid, "rm %s" % (device, ))
cumount()
crmdev()
return True
except:
JBoxVol.log_exception("Exception unmounting device %s from %s",
device.cid)
return False
def mount_host_device(device, cid, container_path):
try:
cpid = JBoxVol.get_pid(cid)
JBoxVol.duplicate_host_blockdevice(device, cpid)
mount_cmd = "mount %s %s" % (device, container_path)
cmount = create_container_mnt_command(cpid, mount_cmd)
cmount()
return True
except:
JBoxVol.log_exception("Exception mounting device %s at %s/%s", device. cid, container_path)
return False
def duplicate_host_blockdevice(device, cpid):
device_versions = JBoxVol.SH_DEVICE_VERSION(device)
device_versions = [int(x, 16) for x in device_versions.split(',')]
# mknod the same device in the container
# can check existing device as: sh -c "[ -b /dev/loop1 ] || mknod --mode 0600 /dev/loop1 b 7 0
# but safer not to overwrite any existing device and throw error instead
mknod_cmd = "mknod --mode 0600 %s b %d %d" % (device, device_versions[0], device_versions[1])
cmknod = create_container_mnt_command(cpid, mknod_cmd)
cmknod()
return True
def mount_host_device(device, cid, container_path):
try:
cpid = JBoxVol.get_pid(cid)
JBoxVol.duplicate_host_blockdevice(device, cpid)
mount_cmd = "mount %s %s" % (device, container_path)
cmount = create_container_mnt_command(cpid, mount_cmd)
cmount()
return True
except:
JBoxVol.log_exception("Exception mounting device %s at %s/%s",
device.cid, container_path)
return False
def duplicate_host_blockdevice(device, cpid):
device_versions = JBoxVol.SH_DEVICE_VERSION(device)
device_versions = [int(x, 16) for x in device_versions.split(',')]
# mknod the same device in the container
# can check existing device as: sh -c "[ -b /dev/loop1 ] || mknod --mode 0600 /dev/loop1 b 7 0
# but safer not to overwrite any existing device and throw error instead
mknod_cmd = "mknod --mode 0600 %s b %d %d" % (
device, device_versions[0], device_versions[1])
cmknod = create_container_mnt_command(cpid, mknod_cmd)
cmknod()
return True
