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Diffstat (limited to 'cloudinit/transforms/resizefs.py')
| -rw-r--r-- | cloudinit/transforms/resizefs.py | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/cloudinit/transforms/resizefs.py b/cloudinit/transforms/resizefs.py deleted file mode 100644 index 1690094a..00000000 --- a/cloudinit/transforms/resizefs.py +++ /dev/null @@ -1,140 +0,0 @@ -# vi: ts=4 expandtab -# -# Copyright (C) 2011 Canonical Ltd. -# Copyright (C) 2012 Hewlett-Packard Development Company, L.P. -# -# Author: Scott Moser <scott.moser@canonical.com> -# Author: Juerg Haefliger <juerg.haefliger@hp.com> -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License version 3, as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. - -import os -import stat -import time - -from cloudinit import util -from cloudinit.settings import PER_ALWAYS - -frequency = PER_ALWAYS - -resize_fs_prefixes_cmds = [ - ('ext', 'resize2fs'), - ('xfs', 'xfs_growfs'), -] - - -def nodeify_path(devpth, where, log): - try: - st_dev = os.stat(where).st_dev - dev = os.makedev(os.major(st_dev), os.minor(st_dev)) - os.mknod(devpth, 0400 | stat.S_IFBLK, dev) - return st_dev - except: - if util.is_container(): - log.debug("Inside container, ignoring mknod failure in resizefs") - return - log.warn("Failed to make device node to resize %s at %s", - where, devpth) - raise - - -def get_fs_type(st_dev, path, log): - try: - dev_entries = util.find_devs_with(tag='TYPE', oformat='value', - no_cache=True, path=path) - if not dev_entries: - return None - return dev_entries[0].strip() - except util.ProcessExecutionError: - util.logexc(log, ("Failed to get filesystem type" - " of maj=%s, min=%s for path %s"), - os.major(st_dev), os.minor(st_dev), path) - raise - - -def handle(name, cfg, cloud, log, args): - if len(args) != 0: - resize_root = args[0] - else: - resize_root = util.get_cfg_option_str(cfg, "resize_rootfs", True) - - if not util.translate_bool(resize_root): - log.debug("Skipping transform named %s, resizing disabled", name) - return - - # TODO is the directory ok to be used?? - resize_root_d = util.get_cfg_option_str(cfg, "resize_rootfs_tmp", "/run") - resize_root_d = cloud.paths.join(False, resize_root_d) - util.ensure_dir(resize_root_d) - - # TODO: allow what is to be resized to be configurable?? - resize_what = cloud.paths.join(False, "/") - with util.SilentTemporaryFile(prefix="cloudinit.resizefs.", - dir=resize_root_d, delete=True) as tfh: - devpth = tfh.name - - # Delete the file so that mknod will work - # but don't change the file handle to know that its - # removed so that when a later call that recreates - # occurs this temporary file will still benefit from - # auto deletion - tfh.unlink_now() - - st_dev = nodeify_path(devpth, resize_what, log) - fs_type = get_fs_type(st_dev, devpth, log) - if not fs_type: - log.warn("Could not determine filesystem type of %s", resize_what) - return - - resizer = None - fstype_lc = fs_type.lower() - for (pfix, root_cmd) in resize_fs_prefixes_cmds: - if fstype_lc.startswith(pfix): - resizer = root_cmd - break - - if not resizer: - log.warn("Not resizing unknown filesystem type %s for %s", - fs_type, resize_what) - return - - log.debug("Resizing %s (%s) using %s", resize_what, fs_type, resizer) - resize_cmd = [resizer, devpth] - - if resize_root == "noblock": - # Fork to a child that will run - # the resize command - util.fork_cb(do_resize, resize_cmd, log) - # Don't delete the file now in the parent - tfh.delete = False - else: - do_resize(resize_cmd, log) - - action = 'Resized' - if resize_root == "noblock": - action = 'Resizing (via forking)' - log.debug("%s root filesystem (type=%s, maj=%i, min=%i, val=%s)", - action, fs_type, os.major(st_dev), os.minor(st_dev), resize_root) - - -def do_resize(resize_cmd, log): - start = time.time() - try: - util.subp(resize_cmd) - except util.ProcessExecutionError: - util.logexc(log, "Failed to resize filesystem (cmd=%s)", resize_cmd) - raise - tot_time = int(time.time() - start) - log.debug("Resizing took %s seconds", tot_time) - # TODO: Should we add a fsck check after this to make - # sure we didn't corrupt anything? |