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rbd: don't specify allow-shrink flag

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It was introduced by commit 4b7dd9d ("allow --allow-shrink on RBD
resize"), but doesn't give a rationale. A mail gives more[0],
indicating that the user also uses the function to shrink images.
However, the volume_resize function is only reachable via the resize
API endpoints for VMs and containers, which have an explicit check to
disallow shrinkage. If somebody really wants to shrink the image, just
let them use the storage's tools directly. Calling into Proxmox VE's
perl functions directly is not supported.

[0]: https://lists.proxmox.com/pipermail/pve-devel/2016-November/024077.html

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
This commit is contained in:
Fiona Ebner 2023-04-28 14:32:08 +02:00 committed by Thomas Lamprecht
parent 0bbb358c91
commit 4ff0f451bd
1 changed files with 1 additions and 1 deletions
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src/PVE/Storage/RBDPlugin.pm
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@ -779,7 +779,7 @@ sub volume_resize {
my ($vtype, $name, $vmid) = $class->parse_volname($volname);
my $cmd = $rbd_cmd->($scfg, $storeid, 'resize', '--allow-shrink', '--size', ($size/1024/1024), $name);
my $cmd = $rbd_cmd->($scfg, $storeid, 'resize', '--size', ($size/1024/1024), $name);
run_rbd_command($cmd, errmsg => "rbd resize '$volname' error");
return undef;
}