From: "Fabian Grünbichler" <f.gruenbichler@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH v5 storage 3/3] add volume_import/export_start helpers
Date: Wed, 9 Feb 2022 14:07:50 +0100 [thread overview]
Message-ID: <20220209130750.902245-22-f.gruenbichler@proxmox.com> (raw)
In-Reply-To: <20220209130750.902245-1-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:
v5:
- re-use migration snapshot info from source in volume_import_start
(fixes migration from non-btrfs to btrfs)
- correctly pass snapshot (name), not migration_snapshot (bool) to
volume_import_formats
v4:
- add log parameter
- unify array-refs
new in v3
PVE/Storage.pm | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 61 insertions(+)
diff --git a/PVE/Storage.pm b/PVE/Storage.pm
index 5a5874a..b1d31bb 100755
--- a/PVE/Storage.pm
+++ b/PVE/Storage.pm
@@ -1833,6 +1833,67 @@ 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:$volname";
+
+ # find common import/export format, like volume_transfer_formats
+ my @import_formats = PVE::Storage::volume_import_formats($cfg, $volid, $opts->{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:[~2022-02-09 13:08 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-09 13:07 [pve-devel] [PATCH-SERIES 0/21] remote migration Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 common 1/1] add 'map_id' helper for ID maps Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 container 1/3] fix #1532: add target-storage support to migration Fabian Grünbichler
2022-02-10 11:52 ` Fabian Ebner
2022-02-11 8:33 ` Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 container 2/3] config: add strict parser Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH PoC v5 container 3/3] migration: add remote migration Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 guest-common 1/3] migrate: add get_bwlimit helper Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 guest-common 2/3] add tunnel helper module Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 guest-common 3/3] add storage tunnel module Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 01/11] move map_storage to PVE::JSONSchema::map_id Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 02/11] schema: use pve-bridge-id Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 03/11] parse_config: optional strict mode Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 04/11] update_vm: allow simultaneous setting of boot-order and dev Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 05/11] nbd alloc helper: allow passing in explicit format Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 06/11] migrate: move tunnel-helpers to pve-guest-common Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 07/11] mtunnel: add API endpoints Fabian Grünbichler
2022-02-11 13:01 ` Fabian Ebner
[not found] ` <<0b8626f8-df25-05a6-3db3-698591688eab@proxmox.com>
2022-02-16 12:57 ` Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 08/11] migrate: refactor remote VM/tunnel start Fabian Grünbichler
2022-02-11 13:01 ` Fabian Ebner
[not found] ` <<ce49d9a8-03b6-01ed-ad01-5cc500bfba19@proxmox.com>
2022-02-16 12:58 ` Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 09/11] migrate: add remote migration handling Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 10/11] api: add remote migrate endpoint Fabian Grünbichler
2022-02-11 13:01 ` Fabian Ebner
[not found] ` <<e5069cdd-7a84-9664-2dea-1ac3e68e339c@proxmox.com>
2022-02-16 12:58 ` Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 qemu-server 11/11] qm: add remote-migrate command Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 storage 1/3] storage_migrate_snapshot: skip for btrfs without snapshots Fabian Grünbichler
2022-02-09 13:07 ` [pve-devel] [PATCH v5 storage 2/3] storage_migrate: pull out import/export_prepare Fabian Grünbichler
2022-02-09 13:07 ` Fabian Grünbichler [this message]
2022-02-09 17:56 ` [pve-devel] [PATCH-SERIES 0/21] remote migration Thomas Lamprecht
2022-02-11 10:38 ` [pve-devel] [PATCH qemu-server follow-up] schema: move 'pve-targetstorage' to pve-common Fabian Grünbichler
2022-02-11 10:38 ` [pve-devel] [PATCH common follow-up] schema: take over 'pve-targetstorage' option Fabian Grünbichler
2022-02-11 11:31 ` [pve-devel] [PATCH qemu-server follow-up] schema: move 'pve-targetstorage' to pve-common Fabian Ebner
2022-02-11 13:08 ` [pve-devel] [PATCH-SERIES 0/21] remote migration Fabian Ebner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220209130750.902245-22-f.gruenbichler@proxmox.com \
--to=f.gruenbichler@proxmox.com \
--cc=pve-devel@lists.proxmox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox