def open_image(image_id):
global HaveAtomicException
if HaveAtomicException and UseAtomic:
logger.debug("atomic is either not installed or not accessable %s" %
HaveAtomicException)
HaveAtomicException = None
if use_atomic_mount():
mount_point = tempfile.mkdtemp()
logger.debug("Opening Image Id %s On %s using atomic" % (image_id, mount_point))
if runcommand(shlex.split("atomic mount") + [image_id, mount_point]) == 0:
return AtomicTemporaryMountPoint(image_id, mount_point)
else:
logger.error('Could not mount Image Id %s On %s' % (image_id, mount_point))
shutil.rmtree(mount_point, ignore_errors=True)
return None
else:
driver = _docker_driver()
if driver is None:
return None
mount_point = tempfile.mkdtemp()
logger.debug("Opening Image Id %s On %s using docker client" % (image_id, mount_point))
# docker mount creates a temp image
# we have to use this temp image id to remove the device
mount_point, cid = DockerMount(mount_point).mount(image_id)
if driver == 'devicemapper':
DockerMount.mount_path(os.path.join(mount_point, "rootfs"), mount_point, bind=True)
if cid:
return DockerTemporaryMountPoint(driver, image_id, mount_point, cid)
else:
logger.error('Could not mount Image Id %s On %s' % (image_id, mount_point))
shutil.rmtree(mount_point, ignore_errors=True)
return None
def open_container(container_id):
global HaveAtomicException
if HaveAtomicException:
logger.debug("atomic is either not installed or not accessable %s" % HaveAtomicException)
HaveAtomicException = None
if use_atomic_mount():
mount_point = tempfile.mkdtemp()
logger.debug("Opening Container Id %s On %s using atomic" % (container_id, mount_point))
if runcommand(shlex.split("atomic mount") + [container_id, mount_point]) == 0:
return AtomicTemporaryMountPoint(container_id, mount_point)
else:
logger.error('Could not mount Container Id %s On %s' % (container_id, mount_point))
shutil.rmtree(mount_point, ignore_errors=True)
return None
else:
driver = _docker_driver()
if driver is None:
return None
mount_point = tempfile.mkdtemp()
logger.debug("Opening Container Id %s On %s using docker client" % (container_id, mount_point))
# docker mount creates a temp image
# we have to use this temp image id to remove the device
mount_point, cid = DockerMount(mount_point).mount(container_id)
if driver == 'devicemapper':
DockerMount.mount_path(os.path.join(mount_point, "rootfs"), mount_point, bind=True)
if cid:
return DockerTemporaryMountPoint(driver, container_id, mount_point, cid)
else:
logger.error('Could not mount Container Id %s On %s' % (container_id, mount_point))
shutil.rmtree(mount_point, ignore_errors=True)
return None
def mount_obj(path, obj, driver):
""" mounts the obj to the given path """
DockerMount(path).mount(obj)
# only need to bind-mount on the devicemapper driver
if driver == 'devicemapper':
DockerMount.mount_path(os.path.join(path, "rootfs"), path, bind=True)
def mount_obj(path, obj, driver):
""" mounts the obj to the given path """
DockerMount(path).mount(obj)
# only need to bind-mount on the devicemapper driver
if driver == 'devicemapper':
DockerMount.mount_path(os.path.join(path, "rootfs"), path, bind=True)
def mount_obj(path, obj, driver):
""" mounts the obj to the given path """
# docker mount creates a temp image
# we have to use this temp image id to remove the device
path, new_cid = DockerMount(path).mount(obj)
if driver == 'devicemapper':
DockerMount.mount_path(os.path.join(path, "rootfs"), path, bind=True)
return new_cid
def unmount_obj(path, driver):
""" unmount the given path """
dev = DockerMount.get_dev_at_mountpoint(path)
# If there's a bind-mount over the directory, unbind it.
if dev.rsplit('[', 1)[-1].strip(']') == '/rootfs' \
and driver == 'devicemapper':
Mount.unmount_path(path)
DockerMount(path).unmount()
def unmount_obj(path, cid, driver):
""" unmount the given path """
# If using device mapper, unmount the bind-mount over the directory
if driver == 'devicemapper':
Mount.unmount_path(path)
DockerMount(path).unmount(cid)
def close(self):
try:
logger.debug("Closing Id %s On %s" % (self.image_id, self.mount_point))
# If using device mapper, unmount the bind-mount over the directory
if self.driver == 'devicemapper':
Mount.unmount_path(self.mount_point)
DockerMount(self.mount_point).unmount(self.cid)
except Exception as e:
logger.debug("exception while unmounting image or container: %s" % e)
shutil.rmtree(self.mount_point, ignore_errors=True)
def unmount_obj(path, driver):
""" unmount the given path """
dev = DockerMount.get_dev_at_mountpoint(path)
# If there's a bind-mount over the directory, unbind it.
if dev.rsplit('[', 1)[-1].strip(']') == '/rootfs' \
and driver == 'devicemapper':
Mount.unmount_path(path)
DockerMount(path).unmount()
