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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ# Copyright (C) 2011 Canonical Ltd. # Copyright (C) 2012 Hewlett-Packard Development Company, L.P. # # Author: Scott Moser # Author: Juerg Haefliger # # This file is part of cloud-init. See LICENSE file for license information. """Resizefs: cloud-config module which resizes the filesystem""" import errno import os import stat from logging import Logger from textwrap import dedent from cloudinit import subp, util from cloudinit.cloud import Cloud from cloudinit.config import Config from cloudinit.config.schema import MetaSchema, get_meta_doc from cloudinit.distros import ALL_DISTROS from cloudinit.settings import PER_ALWAYS NOBLOCK = "noblock" meta: MetaSchema = { "id": "cc_resizefs", "name": "Resizefs", "title": "Resize filesystem", "description": dedent( """\ Resize a filesystem to use all avaliable space on partition. This module is useful along with ``cc_growpart`` and will ensure that if the root partition has been resized the root filesystem will be resized along with it. By default, ``cc_resizefs`` will resize the root partition and will block the boot process while the resize command is running. Optionally, the resize operation can be performed in the background while cloud-init continues running modules. This can be enabled by setting ``resize_rootfs`` to ``noblock``. This module can be disabled altogether by setting ``resize_rootfs`` to ``false``.""" ), "distros": [ALL_DISTROS], "examples": [ "resize_rootfs: false # disable root filesystem resize operation", "resize_rootfs: noblock # runs resize operation in the background", ], "frequency": PER_ALWAYS, "activate_by_schema_keys": [], } __doc__ = get_meta_doc(meta) def _resize_btrfs(mount_point, devpth): # If "/" is ro resize will fail. However it should be allowed since resize # makes everything bigger and subvolumes that are not ro will benefit. # Use a subvolume that is not ro to trick the resize operation to do the # "right" thing. The use of ".snapshot" is specific to "snapper" a generic # solution would be walk the subvolumes and find a rw mounted subvolume. if not util.mount_is_read_write(mount_point) and os.path.isdir( "%s/.snapshots" % mount_point ): return ( "btrfs", "filesystem", "resize", "max", "%s/.snapshots" % mount_point, ) else: return ("btrfs", "filesystem", "resize", "max", mount_point) def _resize_ext(mount_point, devpth): return ("resize2fs", devpth) def _resize_xfs(mount_point, devpth): return ("xfs_growfs", mount_point) def _resize_ufs(mount_point, devpth): return ("growfs", "-y", mount_point) def _resize_zfs(mount_point, devpth): return ("zpool", "online", "-e", mount_point, devpth) def _resize_hammer2(mount_point, devpth): return ("hammer2", "growfs", mount_point) def _can_skip_resize_ufs(mount_point, devpth): # possible errors cases on the code-path to growfs -N following: # https://github.com/freebsd/freebsd/blob/HEAD/sbin/growfs/growfs.c # This is the "good" error: skip_start = "growfs: requested size" skip_contain = "is not larger than the current filesystem size" # growfs exits with 1 for almost all cases up to this one. # This means we can't just use rcs=[0, 1] as subp parameter: try: subp.subp(["growfs", "-N", devpth]) except subp.ProcessExecutionError as e: if e.stderr.startswith(skip_start) and skip_contain in e.stderr: # This FS is already at the desired size return True else: raise e return False # Do not use a dictionary as these commands should be able to be used # for multiple filesystem types if possible, e.g. one command for # ext2, ext3 and ext4. RESIZE_FS_PREFIXES_CMDS = [ ("btrfs", _resize_btrfs), ("ext", _resize_ext), ("xfs", _resize_xfs), ("ufs", _resize_ufs), ("zfs", _resize_zfs), ("hammer2", _resize_hammer2), ] RESIZE_FS_PRECHECK_CMDS = {"ufs": _can_skip_resize_ufs} def can_skip_resize(fs_type, resize_what, devpth): fstype_lc = fs_type.lower() for i, func in RESIZE_FS_PRECHECK_CMDS.items(): if fstype_lc.startswith(i): return func(resize_what, devpth) return False def maybe_get_writable_device_path(devpath, info, log): """Return updated devpath if the devpath is a writable block device. @param devpath: Requested path to the root device we want to resize. @param info: String representing information about the requested device. @param log: Logger to which logs will be added upon error. @returns devpath or updated devpath per kernel commandline if the device path is a writable block device, returns None otherwise. """ container = util.is_container() # Ensure the path is a block device. if ( devpath == "/dev/root" and not os.path.exists(devpath) and not container ): devpath = util.rootdev_from_cmdline(util.get_cmdline()) if devpath is None: log.warning("Unable to find device '/dev/root'") return None log.debug("Converted /dev/root to '%s' per kernel cmdline", devpath) if devpath == "overlayroot": log.debug("Not attempting to resize devpath '%s': %s", devpath, info) return None # FreeBSD zpool can also just use gpt/