[pve-devel] [PATCH v3 manager 1/2] ui: qga: Add option to turn off QGA fs-freeze/-thaw on backup

[Christoph Heiss]

Adds a default-on checkbox to the QEMU Guest Agent feature selector
controlling the 'fs-freeze-on-backup' option. If unchecked, an
additional warning is displayed that backups can potentially corrupt
with this setting off.

Signed-off-by: Christoph Heiss <c.heiss at proxmox.com>
---
The qemu-server part has already been applied; commit 93e21fd.

Changes v1 -> v2:
 * Rename option from 'fsfreeze_thaw' to 'freeze-fs-on-backup'
 * Adapt option descriptions as suggested

Changes v2 -> v3:
 * Fold gettext() onto one line, as the parser does not support multiple
   lines (yet)
 * Change let -> const declaration

 www/manager6/Utils.js                     |  2 ++
 www/manager6/form/AgentFeatureSelector.js | 30 ++++++++++++++++++++++-
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/www/manager6/Utils.js b/www/manager6/Utils.js
index d8c0bf5a..e6c7861a 100644
--- a/www/manager6/Utils.js
+++ b/www/manager6/Utils.js
@@ -475,6 +475,8 @@ Ext.define('PVE.Utils', {
 		    virtio: "VirtIO",
 		};
 		displayText = map[value] || Proxmox.Utils.unknownText;
+	    } else if (key === 'freeze-fs-on-backup' && PVE.Parser.parseBoolean(value)) {
+		continue;
 	    } else if (PVE.Parser.parseBoolean(value)) {
 		displayText = Proxmox.Utils.enabledText;
 	    }
diff --git a/www/manager6/form/AgentFeatureSelector.js b/www/manager6/form/AgentFeatureSelector.js
index 0dcc6ecb..81ea42ea 100644
--- a/www/manager6/form/AgentFeatureSelector.js
+++ b/www/manager6/form/AgentFeatureSelector.js
@@ -21,6 +21,26 @@ Ext.define('PVE.form.AgentFeatureSelector', {
 	    },
 	    disabled: true,
 	},
+	{
+	    xtype: 'proxmoxcheckbox',
+	    boxLabel: gettext('Freeze/thaw guest filesystems on backup for consistency'),
+	    name: 'freeze-fs-on-backup',
+	    reference: 'freeze_fs_on_backup',
+	    bind: {
+		disabled: '{!enabled.checked}',
+	    },
+	    disabled: true,
+	    uncheckedValue: '0',
+	    defaultValue: '1',
+	},
+	{
+	    xtype: 'displayfield',
+	    userCls: 'pmx-hint',
+	    value: gettext('Freeze/thaw for guest filesystems disabled. This can lead to inconsistent disk backups.'),
+	    bind: {
+		hidden: '{freeze_fs_on_backup.checked}',
+	    },
+	},
 	{
 	    xtype: 'displayfield',
 	    userCls: 'pmx-hint',
@@ -47,12 +67,20 @@ Ext.define('PVE.form.AgentFeatureSelector', {
     ],

     onGetValues: function(values) {
-	var agentstr = PVE.Parser.printPropertyString(values, 'enabled');
+	if (PVE.Parser.parseBoolean(values['freeze-fs-on-backup'])) {
+	    delete values['freeze-fs-on-backup'];
+	}
+
+	const agentstr = PVE.Parser.printPropertyString(values, 'enabled');
 	return { agent: agentstr };
     },

     setValues: function(values) {
 	let res = PVE.Parser.parsePropertyString(values.agent, 'enabled');
+	if (!Ext.isDefined(res['freeze-fs-on-backup'])) {
+	    res['freeze-fs-on-backup'] = 1;
+	}
+
 	this.callParent([res]);
     },
 });
--
2.39.2