def _make_vfat(self, path):
# NOTE(mikal): This is a little horrible, but I couldn't find an
# equivalent to genisoimage for vfat filesystems.
with open(path, 'w') as f:
f.truncate(CONFIGDRIVESIZE_BYTES)
utils.mkfs('vfat', path, label='config-2')
mounted = False
try:
mountdir = tempfile.mkdtemp(dir=CONF.config_drive_tempdir,
prefix='cd_mnt_')
_out, err = utils.trycmd('mount',
'-o',
'loop,uid=%d,gid=%d' %
(os.getuid(), os.getgid()),
path,
mountdir,
run_as_root=True)
if err:
raise exception.ConfigDriveMountFailed(operation='mount',
error=err)
mounted = True
# NOTE(mikal): I can't just use shutils.copytree here, because the
# destination directory already exists. This is annoying.
for ent in os.listdir(self.tempdir):
shutil.copytree(os.path.join(self.tempdir, ent),
os.path.join(mountdir, ent))
finally:
if mounted:
utils.execute('umount', mountdir, run_as_root=True)
shutil.rmtree(mountdir)
def _make_vfat(self, path, tmpdir):
# NOTE(mikal): This is a little horrible, but I couldn't find an
# equivalent to genisoimage for vfat filesystems.
with open(path, 'wb') as f:
f.truncate(CONFIGDRIVESIZE_BYTES)
utils.mkfs('vfat', path, label='config-2')
with utils.tempdir() as mountdir:
mounted = False
try:
_, err = nova.privsep.fs.mount(
None, path, mountdir,
['-o',
'loop,uid=%d,gid=%d' % (os.getuid(), os.getgid())])
if err:
raise exception.ConfigDriveMountFailed(operation='mount',
error=err)
mounted = True
# NOTE(mikal): I can't just use shutils.copytree here,
# because the destination directory already
# exists. This is annoying.
for ent in os.listdir(tmpdir):
shutil.copytree(os.path.join(tmpdir, ent),
os.path.join(mountdir, ent))
finally:
if mounted:
nova.privsep.fs.umount(mountdir)
