[pve-devel] [RFC storage 8/16] storage_migrate: use only storeid when no volume name is specified

[Fabian Ebner]

so the migration code doesn't need to know how the volid on
the targetstorage would look like (e.g. VM has disk
mydir:123/vm-123-disk-0.raw and targetstorage is an LVM).
Previously it would fail, because the current volname was
passed to 'pvesm import' which is an invalid name for an LVM storage.

Signed-off-by: Fabian Ebner <f.ebner at proxmox.com>
---
 PVE/Storage.pm | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/PVE/Storage.pm b/PVE/Storage.pm
index d708c03..6aea2ef 100755
--- a/PVE/Storage.pm
+++ b/PVE/Storage.pm
@@ -561,7 +561,6 @@ sub storage_migrate {
     my ($cfg, $volid, $target_sshinfo, $target_storeid, $target_volname, $base_snapshot, $snapshot, $ratelimit_bps, $insecure, $with_snapshots, $logfunc) = @_;
 
     my ($storeid, $volname) = parse_volume_id($volid);
-    $target_volname = $volname if !$target_volname;
 
     my $scfg = storage_config($cfg, $storeid);
 
@@ -570,7 +569,7 @@ sub storage_migrate {
 
     my $tcfg = storage_config($cfg, $target_storeid);
 
-    my $target_volid = "${target_storeid}:${target_volname}";
+    my $target_volid_or_storeid = defined($target_volname) ? "${target_storeid}:${target_volname}" : "$target_storeid";
 
     my $target_ip = $target_sshinfo->{ip};
 
@@ -601,7 +600,7 @@ sub storage_migrate {
 
     $with_snapshots = $with_snapshots ? 1 : 0; # sanitize for passing as cli parameter
     my $send = ['pvesm', 'export', $volid, $format, '-', '-with-snapshots', $with_snapshots];
-    my $recv = [@$ssh, '--', 'pvesm', 'import', $target_volid, $format, $import_fn, '-with-snapshots', $with_snapshots];
+    my $recv = [@$ssh, '--', 'pvesm', 'import', $target_volid_or_storeid, $format, $import_fn, '-with-snapshots', $with_snapshots];
     if (defined($snapshot)) {
 	push @$send, '-snapshot', $snapshot
     }
@@ -609,6 +608,11 @@ sub storage_migrate {
 	push @$recv, '-delete-snapshot', $snapshot;
     }
 
+    my $vmid = (parse_volname($cfg, $volid))[2];
+    if (!defined($target_volname)) {
+	push @$recv, '-vmid', $vmid;
+    }
+
     if (defined($base_snapshot)) {
 	# Check if the snapshot exists on the remote side:
 	push @$send, '-base', $base_snapshot;
-- 
2.20.1