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From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Fri, 9 May 2025 16:15:32 +0200
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Subject: [pve-devel] [RFC storage 3/3] rbd plugin: implement new method to
get qemu blockdevice options
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Co-developed-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
The mon host parsing is adapted from other places where we do that,
but I did not test it with IPv6 yet.
src/PVE/Storage/RBDPlugin.pm | 43 ++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/src/PVE/Storage/RBDPlugin.pm b/src/PVE/Storage/RBDPlugin.pm
index 73bc97e..6ae8216 100644
--- a/src/PVE/Storage/RBDPlugin.pm
+++ b/src/PVE/Storage/RBDPlugin.pm
@@ -493,6 +493,49 @@ sub path {
return ($path, $vmid, $vtype);
}
+sub qemu_blockdev_options {
+ my ($class, $scfg, $storeid, $volname, $snapname) = @_;
+
+ my $cmd_option = PVE::CephConfig::ceph_connect_option($scfg, $storeid);
+ my ($name) = ($class->parse_volname($volname))[1];
+ $name .= '@'.$snapname if $snapname;
+
+ if ($scfg->{krbd}) {
+ my $rbd_dev_path = get_rbd_dev_path($scfg, $storeid, $name);
+ return { driver => 'host_device', filename => $rbd_dev_path };
+ }
+
+ my $blockdev = {
+ driver => 'rbd',
+ pool => $scfg->{pool} ? "$scfg->{pool}" : 'rbd',
+ image => "$name",
+ };
+ $blockdev->{namespace} = "$scfg->{namespace}" if defined($scfg->{namespace});
+
+ $blockdev->{conf} = $cmd_option->{ceph_conf} if $cmd_option->{ceph_conf};
+
+ if (my $monhost = $scfg->{'monhost'}) {
+ my $server = [];
+ my @mons = PVE::Tools::split_list($monhost);
+ for my $mon (@mons) {
+ $mon =~ s/^\[?v\d\://; # remove beginning of vector
+ $mon =~ s|/\d+\]?||; # remove end of vector
+ my ($host, $port) = PVE::Tools::parse_host_and_port($mon);
+ $port = '3300' if !$port;
+ push @$server, { host => $host, port => $port };
+ }
+ $blockdev->{server} = $server;
+ $blockdev->{'auth-client-required'} = ["$cmd_option->{auth_supported}"];
+ }
+
+ if ($cmd_option->{keyring}) {
+ $blockdev->{user} = "$cmd_option->{userid}";
+ $blockdev->{'keyring-file'} = "$cmd_option->{keyring}";
+ }
+
+ return $blockdev;
+}
+
sub find_free_diskname {
my ($class, $storeid, $scfg, $vmid, $fmt, $add_fmt_suffix) = @_;
--
2.39.5
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