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According to man page `man 8 swapon', "Preallocated swap files are
supported on XFS since Linux 4.18". This patch checks for kernel version
before attepting to create swapfile, using dd for XFS only on kernel
versions <= 4.18 or btrfs.
Add new func util.kernel_version which returns a tuple of ints (major, minor)
Signed-off-by: Eduardo Otubo otubo@redhat.com
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Do not fail if /etc/fstab is not present. Some images, like container
rootfs may not include this file by default.
LP: #1886531
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This was painful, but it finishes a TODO from cloudinit/subp.py.
It moves the following from util to subp:
ProcessExecutionError
subp
which
target_path
I moved subp_blob_in_tempfile into cc_chef, which is its only caller.
That saved us from having to deal with it using write_file
and temp_utils from subp (which does not import any cloudinit things now).
It is arguable that 'target_path' could be moved to a 'path_utils' or
something, but in order to use it from subp and also from utils,
we had to get it out of utils.
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The cc_mounts module does not support NFS mounts in the form of hostname:/ or hostname:/path.
This PR adds support for NFS-style paths in the fs_spec field.
LP: #1870370
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We only run on Python 3 now, so we can unambiguously expect
unittest.mock to exist.
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When creating a swap file on an xfs filesystem, fallocate cannot be used.
Doing so results in failure of swapon and a message like:
swapon: swapfile has holes
The solution here is to maintain a list (currently containing only XFS)
of filesystems where fallocate cannot be used. The, on those fileystems
use the slower but functional 'dd' method.
Signed-off-by: Eduardo Otubo <otubo@redhat.com>
Co-authored-by: Adam Dobrawy <naczelnik@jawnosc.tk>
Co-authored-by: Scott Moser <smoser@brickies.net>
Co-authored-by: Daniel Watkins <daniel@daniel-watkins.co.uk>
LP: #1781781
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Under some circumstances, cc_disk_setup may reformat volumes which
already appear in /etc/fstab (e.g. Azure ephemeral drive is reformatted
from NTFS to ext4 after service-heal). Normally, cc_mounts only calls
mount -a if it altered /etc/fstab. With this change cc_mounts will read
/proc/mounts and verify if configured mounts are already mounted and if
not raise flag to request a mount -a. This handles the case where no
changes to fstab occur but a mount -a is required due to change in
underlying device which prevented the .mount unit from running until
after disk was reformatted.
LP: #1825596
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Do not add new entries to /etc/fstab for devices that already have an
existing fstab entry.
Resolves: rhbz#1542578
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This moves the base test case classes into into cloudinit/tests and
updates all the corresponding imports.
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This has been a recurring ask and we had initially just made the change to
the cloud-init 2.0 codebase. As the current thinking is we'll just
continue to enhance the current codebase, its desirable to relicense to
match what we'd intended as part of the 2.0 plan here.
- put a brief description of license in LICENSE file
- put full license versions in LICENSE-GPLv3 and LICENSE-Apache2.0
- simplify the per-file header to reference LICENSE
- tox: ignore H102 (Apache License Header check)
Add license header to files that ship.
Reformat headers, make sure everything has vi: at end of file.
Non-shipping files do not need the copyright header,
but at the moment tests/ have it.
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