2021-05-18 06:51:15 +00:00
From 9d7b3e53fd4346bbb2abfb046df224de03f5b92f Mon Sep 17 00:00:00 2001
2020-11-03 11:58:07 +00:00
From: Pino Toscano <ptoscano@redhat.com>
Date: Thu, 19 Sep 2019 12:19:09 +0200
Subject: [PATCH] v2v: -o rhv-upload: add -oo rhv-disk-uuid option
This way it is possible to override the UUIDs of the uploaded disks,
instead of letting RHV generate them.
This can be useful to force certain UUIDs, and to specify the disks in
--no-copy mode (which now can be used).
(cherry picked from commit 537ba8357e44ca3aa8878a2ac98e9476a570d3f4)
---
v2v/output_rhv_upload.ml | 43 ++++++++++++++++++++++++++++++++-----
v2v/rhv-upload-plugin.py | 2 ++
v2v/virt-v2v-output-rhv.pod | 24 +++++++++++++++++++++
3 files changed, 64 insertions(+), 5 deletions(-)
diff --git a/v2v/output_rhv_upload.ml b/v2v/output_rhv_upload.ml
index 382ad0d93..206657a2b 100644
--- a/v2v/output_rhv_upload.ml
+++ b/v2v/output_rhv_upload.ml
@@ -32,6 +32,7 @@ type rhv_options = {
rhv_cluster : string option;
rhv_direct : bool;
rhv_verifypeer : bool;
+ rhv_disk_uuids : string list option;
}
let print_output_options () =
@@ -41,6 +42,11 @@ let print_output_options () =
-oo rhv-cluster=CLUSTERNAME Set RHV cluster name.
-oo rhv-direct[=true|false] Use direct transfer mode (default: false).
-oo rhv-verifypeer[=true|false] Verify server identity (default: false).
+
+You can override the UUIDs of the disks, instead of using autogenerated UUIDs
+after their uploads (if you do, you must supply one for each disk):
+
+ -oo rhv-disk-uuid=UUID Disk UUID
")
let parse_output_options options =
@@ -48,6 +54,7 @@ let parse_output_options options =
let rhv_cluster = ref None in
let rhv_direct = ref false in
let rhv_verifypeer = ref false in
+ let rhv_disk_uuids = ref None in
List.iter (
function
@@ -63,6 +70,8 @@ let parse_output_options options =
| "rhv-direct", v -> rhv_direct := bool_of_string v
| "rhv-verifypeer", "" -> rhv_verifypeer := true
| "rhv-verifypeer", v -> rhv_verifypeer := bool_of_string v
+ | "rhv-disk-uuid", v ->
+ rhv_disk_uuids := Some (v :: (Option.default [] !rhv_disk_uuids))
| k, _ ->
error (f_"-o rhv-upload: unknown output option ‘ ’
) options;
@@ -75,8 +84,9 @@ let parse_output_options options =
let rhv_cluster = !rhv_cluster in
let rhv_direct = !rhv_direct in
let rhv_verifypeer = !rhv_verifypeer in
+ let rhv_disk_uuids = Option.map List.rev !rhv_disk_uuids in
- { rhv_cafile; rhv_cluster; rhv_direct; rhv_verifypeer }
+ { rhv_cafile; rhv_cluster; rhv_direct; rhv_verifypeer; rhv_disk_uuids }
let nbdkit_python_plugin = Config.virt_v2v_nbdkit_python_plugin
let pidfile_timeout = 30
@@ -270,6 +280,16 @@ object
method install_rhev_apt = true
method prepare_targets source overlays _ _ _ _ =
+ let uuids =
+ match rhv_options.rhv_disk_uuids with
+ | None ->
+ List.map (fun _ -> None) overlays
+ | Some uuids ->
+ if List.length uuids <> List.length overlays then
+ error (f_"the number of ‘ ’
+ (List.length overlays);
+ List.map (fun uuid -> Some uuid) uuids in
+
let output_name = source.s_name in
let json_params =
("output_name", JSON.String output_name) :: json_params in
@@ -284,7 +304,7 @@ object
* target URI to point to the NBD socket.
*)
List.map (
- fun (target_format, ov) ->
+ fun ((target_format, ov), uuid) ->
let id = ov.ov_source.s_disk_id in
let disk_name = sprintf "%s-%03d" output_name id in
let json_params =
@@ -310,6 +330,12 @@ object
let json_params =
("diskid_file", JSON.String diskid_file) :: json_params in
+ let json_params =
+ match uuid with
+ | None -> json_params
+ | Some uuid ->
+ ("rhv_disk_uuid", JSON.String uuid) :: json_params in
+
(* Write the JSON parameters to a file. *)
let json_param_file = tmpdir // sprintf "params%d.json" id in
with_open_out
@@ -379,7 +405,7 @@ If the messages above are not sufficient to diagnose the problem then add the
"file.export", JSON.String "/";
] in
TargetURI ("json:" ^ JSON.string_of_doc json_params)
- ) overlays
+ ) (List.combine overlays uuids)
method disk_copied t i nr_disks =
(* Get the UUID of the disk image. This file is written
@@ -395,7 +421,14 @@ If the messages above are not sufficient to diagnose the problem then add the
disks_uuids <- disks_uuids @ [diskid];
method create_metadata source targets _ guestcaps inspect target_firmware =
- assert (List.length disks_uuids = List.length targets);
+ let image_uuids =
+ match rhv_options.rhv_disk_uuids, disks_uuids with
+ | None, [] ->
+ error (f_"there must be ‘ ’
+ (List.length targets)
+ | Some uuids, _ -> uuids
+ | None, uuids -> uuids in
+ assert (List.length image_uuids = List.length targets);
(* The storage domain UUID. *)
let sd_uuid =
@@ -411,7 +444,7 @@ If the messages above are not sufficient to diagnose the problem then add the
let ovf =
Create_ovf.create_ovf source targets guestcaps inspect
target_firmware output_alloc
- sd_uuid disks_uuids vol_uuids vm_uuid
+ sd_uuid image_uuids vol_uuids vm_uuid
OVirt in
let ovf = DOM.doc_to_string ovf in
diff --git a/v2v/rhv-upload-plugin.py b/v2v/rhv-upload-plugin.py
index 4d61a089b..6ec74a5d4 100644
--- a/v2v/rhv-upload-plugin.py
+++ b/v2v/rhv-upload-plugin.py
@@ -135,6 +135,8 @@ def open(readonly):
disk_format = types.DiskFormat.COW
disk = disks_service.add(
disk = types.Disk(
+ # The ID is optional.
+ id = params.get('rhv_disk_uuid'),
name = params['disk_name'],
description = "Uploaded by virt-v2v",
format = disk_format,
diff --git a/v2v/virt-v2v-output-rhv.pod b/v2v/virt-v2v-output-rhv.pod
index 651f61dae..e840ca78d 100644
--- a/v2v/virt-v2v-output-rhv.pod
+++ b/v2v/virt-v2v-output-rhv.pod
@@ -9,6 +9,7 @@ virt-v2v-output-rhv - Using virt-v2v to convert guests to oVirt or RHV
[-oo rhv-cafile=FILE]
[-oo rhv-cluster=CLUSTER]
[-oo rhv-direct]
+ [-oo rhv-disk-uuid=UUID ...]
[-oo rhv-verifypeer]
virt-v2v [-i* options] -o rhv -os [esd:/path|/path]
@@ -104,6 +105,29 @@ F</etc/pki/ovirt-engine/ca.pem> on the oVirt engine.
Set the RHV Cluster Name. If not given it uses C<Default>.
+=item I<-oo rhv-disk-uuid=>C<UUID>
+
+This option can used to manually specify UUIDs for the disks when
+creating the virtual machine. If not specified, the oVirt engine will
+generate random UUIDs for the disks. Please note that:
+
+=over 4
+
+=item *
+
+you B<must> pass as many I<-oo rhv-disk-uuid=UUID> options as the
+amount of disks in the guest
+
+=item *
+
+the specified UUIDs are used as they are, without checking whether
+they are already used by other disks
+
+=back
+
+This option is considered advanced, and to be used mostly in
+combination with I<--no-copy>.
+
=item I<-oo rhv-direct>
If this option is given then virt-v2v will attempt to directly upload
--
2021-05-18 06:51:15 +00:00
2.18.4
2020-11-03 11:58:07 +00:00
