[PATCH manager 13/19] ui: options: add backup concurrency for datacenter and nodes

[Thomas Lamprecht <t.lamprecht@proxmox.com>]

Expose the per-node backup concurrency in the datacenter options and
its override in the node options, so admins can let nodes back up
several guests at the same time without editing configuration files.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
 www/manager6/dc/OptionView.js        | 14 ++++++++++++++
 www/manager6/node/NodeOptionsView.js |  8 ++++++++
 2 files changed, 22 insertions(+)

diff --git a/www/manager6/dc/OptionView.js b/www/manager6/dc/OptionView.js
index dc12aa7e1..ac0f0bdd1 100644
--- a/www/manager6/dc/OptionView.js
+++ b/www/manager6/dc/OptionView.js
@@ -360,6 +360,20 @@ Ext.define('PVE.dc.OptionView', {
             minValue: 1,
             maxValue: 64, // arbitrary but generous limit as limits are good
         });
+        me.add_inputpanel_row('backup-concurrency', gettext('Backup Concurrency'), {
+            renderer: PVE.Utils.render_as_property_string,
+            url: '/api2/extjs/cluster/options',
+            items: [
+                {
+                    xtype: 'proxmoxintegerfield',
+                    name: 'node',
+                    fieldLabel: gettext('Per node'),
+                    emptyText: '1',
+                    minValue: 1,
+                    submitValue: true,
+                },
+            ],
+        });
         me.add_inputpanel_row('next-id', gettext('Next Free VMID Range'), {
             renderer: PVE.Utils.render_as_property_string,
             url: '/api2/extjs/cluster/options',
diff --git a/www/manager6/node/NodeOptionsView.js b/www/manager6/node/NodeOptionsView.js
index 5e9ce7915..2dcda66bc 100644
--- a/www/manager6/node/NodeOptionsView.js
+++ b/www/manager6/node/NodeOptionsView.js
@@ -95,5 +95,13 @@ Ext.define('Proxmox.node.NodeOptionsView', {
             onlineHelp: 'qm_memory',
             renderer: (value) => (value !== undefined ? `${value}%` : gettext('Default (80%)')),
         },
+        {
+            xtype: 'integer',
+            name: 'backup-concurrency',
+            text: gettext('Backup concurrency'),
+            minValue: 1,
+            deleteEmpty: true,
+            renderer: (value) => value ?? gettext('Datacenter default'),
+        },
     ],
 });
-- 
2.47.3