[PATCH manager 2/2] fix #7339: lvmthick: ui: add UI fields for option to free storage

[Lukas Sichert <l.sichert@proxmox.com>]

In the previous commit the backend recieved the functionality to discard
allocated space of a VM disk on a SAN, when a VM is deleted. The backend
checks whether to use this option by parsing storage.cfg to see if
'issue_blkdiscard' is set to 1. This variable will automatically be
stored into the config file if it is present in the 'PUT' API request.
To be able to append this to the API call, the variable needs
to be defined in the json-Schema, but this has also been added in the
previous commit.

To enable a option to free storage in the Gui, create a checkbox with
the name 'issue_blkdiscard'. In the checkbox use cbind to evaluate
'iscreate' from the component, to only autoenable on new creations of
LVM Storages. This checkbox also adds the 'issue_blkdiscard'
variable and its value to the return call.

Also add remappings for the description of the new worker tasks, to show
in the Gui, which options are used for the current deletion.

Signed-off-by: Lukas Sichert <l.sichert@proxmox.com>
---
 www/manager6/Utils.js           |  3 +++
 www/manager6/storage/LVMEdit.js | 13 +++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/www/manager6/Utils.js b/www/manager6/Utils.js
index 77dae42e..1c70b159 100644
--- a/www/manager6/Utils.js
+++ b/www/manager6/Utils.js
@@ -2133,6 +2133,9 @@ Ext.define('PVE.Utils', {
             clusterjoin: ['', gettext('Join Cluster')],
             dircreate: [gettext('Directory Storage'), gettext('Create')],
             dirremove: [gettext('Directory'), gettext('Remove')],
+            diskdiscard: ['', gettext('Discard disk')],
+            diskzero: ['', gettext('Zero out disk')],
+            diskzerodiscard: ['', gettext('Zero out and discard disk')],
             download: [gettext('File'), gettext('Download')],
             hamigrate: ['HA', gettext('Migrate')],
             hashutdown: ['HA', gettext('Shutdown')],
diff --git a/www/manager6/storage/LVMEdit.js b/www/manager6/storage/LVMEdit.js
index 148f0601..35d2b329 100644
--- a/www/manager6/storage/LVMEdit.js
+++ b/www/manager6/storage/LVMEdit.js
@@ -241,5 +241,18 @@ Ext.define('PVE.storage.LVMInputPanel', {
             uncheckedValue: 0,
             fieldLabel: gettext('Wipe Removed Volumes'),
         },
+        {
+            xtype: 'proxmoxcheckbox',
+            name: 'issue_blkdiscard',
+            uncheckedValue: 0,
+            cbind: {
+                checked: '{isCreate}',
+            },
+            fieldLabel: gettext('Discard Removed Volumes'),
+            autoEl: {
+                tag: 'div',
+                'data-qtip': gettext('Enable if storage space should be freed when VM is deleted.'),
+            },
+        },
     ],
 });
-- 
2.47.3