From: "Fabian Grünbichler" <f.gruenbichler@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH v4 storage 4/4] add volume_import/export_start helpers
Date: Thu, 3 Feb 2022 13:41:43 +0100 [thread overview]
Message-ID: <20220203124143.1931377-23-f.gruenbichler@proxmox.com> (raw)
In-Reply-To: <20220203124143.1931377-1-f.gruenbichler@proxmox.com>
exposing the two halves of a storage migration for usage across
cluster boundaries.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
Notes:
v4:
- add log parameter
- unify array-refs
new in v3
PVE/Storage.pm | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 66 insertions(+)
diff --git a/PVE/Storage.pm b/PVE/Storage.pm
index 837df1b..682dd38 100755
--- a/PVE/Storage.pm
+++ b/PVE/Storage.pm
@@ -1833,6 +1833,72 @@ sub volume_imported_message {
}
}
+# $format and $volname are requests and might be overruled depending on $opts
+# $opts:
+# - with_snapshots: passed to `pvesm import` and used to select import format
+# - allow_rename: passed to `pvesm import`
+# - export_formats: used to select common transport format
+# - unix: unix socket path
+sub volume_import_start {
+ my ($cfg, $storeid, $volname, $format, $vmid, $opts) = @_;
+
+ my $with_snapshots = $opts->{'with_snapshots'} ? 1 : 0;
+
+ $volname = $volname_for_storage->($cfg, $storeid, $volname, $vmid, $format);
+
+ my $volid = "$storeid:$volname";
+
+ if (!defined($opts->{snapshot})) {
+ $opts->{migration_snapshot} = storage_migrate_snapshot($cfg, $storeid);
+ $opts->{snapshot} = '__migration__' if $opts->{migration_snapshot};
+ }
+
+ # find common import/export format, like volume_transfer_formats
+ my @import_formats = PVE::Storage::volume_import_formats($cfg, $volid, $opts->{migration_snapshot}, undef, $with_snapshots);
+ my @export_formats = PVE::Tools::split_list($opts->{export_formats});
+ my %import_hash = map { $_ => 1 } @import_formats;
+ my @common = grep { $import_hash{$_} } @export_formats;
+ die "no matching import/export format found for storage '$storeid'\n"
+ if !@common;
+ $format = $common[0];
+
+ my $input = IO::File->new();
+ my $info = IO::File->new();
+
+ my $unix = $opts->{unix} // "/run/pve/storage-migrate-$vmid.$$.unix";
+ my $import = $volume_import_prepare->($volid, $format, "unix://$unix", APIVER, $opts);
+
+ unlink $unix;
+ my $cpid = open3($input, $info, $info, @$import)
+ or die "failed to spawn disk-import child - $!\n";
+
+ my $ready;
+ eval {
+ PVE::Tools::run_with_timeout(5, sub { $ready = <$info>; });
+ };
+
+ die "failed to read readyness from disk import child: $@\n" if $@;
+
+ print "$ready\n";
+
+ return {
+ fh => $info,
+ pid => $cpid,
+ socket => $unix,
+ format => $format,
+ };
+}
+
+sub volume_export_start {
+ my ($cfg, $volid, $format, $log, $opts) = @_;
+
+ my $run_command_params = delete $opts->{cmd} // {};
+
+ my $cmds = $volume_export_prepare->($cfg, $volid, $format, $log, $opts);
+
+ PVE::Tools::run_command($cmds, %$run_command_params);
+}
+
# bash completion helper
sub complete_storage {
--
2.30.2
next prev parent reply other threads:[~2022-02-03 12:42 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-03 12:41 [pve-devel] [PATCH v4 guest-common 0/22] remote migration Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 guest-common 1/3] migrate: handle migration_network with " Fabian Grünbichler
2022-02-04 16:37 ` [pve-devel] applied: " Thomas Lamprecht
2022-02-03 12:41 ` [pve-devel] [PATCH v4 guest-common 2/3] add tunnel helper module Fabian Grünbichler
2022-02-04 11:44 ` Fabian Ebner
2022-02-03 12:41 ` [pve-devel] [PATCH v4 guest-common 3/3] add storage tunnel module Fabian Grünbichler
2022-02-04 12:49 ` Fabian Ebner
2022-02-03 12:41 ` [pve-devel] [PATCH v4 proxmox-websocket-tunnel 1/4] initial commit Fabian Grünbichler
2022-02-04 9:38 ` [pve-devel] partially-applied-series: " Thomas Lamprecht
2022-02-03 12:41 ` [pve-devel] [PATCH v4 proxmox-websocket-tunnel 2/4] add tunnel implementation Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 proxmox-websocket-tunnel 3/4] add fingerprint validation Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 proxmox-websocket-tunnel 4/4] add packaging Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 01/11] refactor map_storage to map_id Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 02/11] schema: use pve-bridge-id Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 03/11] parse_config: optional strict mode Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 04/11] update_vm: allow simultaneous setting of boot-order and dev Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 05/11] nbd alloc helper: allow passing in explicit format Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 06/11] migrate: move tunnel-helpers to pve-guest-common Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 07/11] mtunnel: add API endpoints Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 08/11] migrate: refactor remote VM/tunnel start Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 09/11] migrate: add remote migration handling Fabian Grünbichler
2022-02-04 13:45 ` Fabian Ebner
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 10/11] api: add remote migrate endpoint Fabian Grünbichler
2022-02-03 12:41 ` [pve-devel] [PATCH v4 qemu-server 11/11] qm: add remote_migrate command Fabian Grünbichler
2022-02-04 14:03 ` Fabian Ebner
2022-02-03 12:41 ` [pve-devel] [PATCH v4 storage 1/4] volname_for_storage: parse volname before calling Fabian Grünbichler
2022-02-04 16:33 ` [pve-devel] applied: " Thomas Lamprecht
2022-02-03 12:41 ` [pve-devel] [PATCH v4 storage 2/4] storage_migrate: pull out snapshot decision Fabian Grünbichler
2022-02-04 16:33 ` [pve-devel] applied: " Thomas Lamprecht
2022-02-03 12:41 ` [pve-devel] [PATCH v4 storage 3/4] storage_migrate: pull out import/export_prepare Fabian Grünbichler
2022-02-03 12:41 ` Fabian Grünbichler [this message]
2022-02-04 11:38 ` [pve-devel] [PATCH v4 storage 4/4] add volume_import/export_start helpers Fabian Ebner
2022-02-04 14:13 ` [pve-devel] [PATCH v4 guest-common 0/22] remote migration Fabian Ebner
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