feat(xo-web/host): Smart Reboot (#6795)

Fixes #6750
See https://xcp-ng.org/forum/topic/7136
See #6791

Suspend resident VMs, restart host and resume VMs

CHANGELOG.unreleased.md

@@ -11,6 +11,7 @@
 - [Dashboard/Health] Add free space column for storage state table (PR [#6778](https://github.com/vatesfr/xen-orchestra/pull/6778))
 - [VM/General] Displays the template name used to create the VM, as well as the email address of the VM creator for admin users (PR [#6771](https://github.com/vatesfr/xen-orchestra/pull/6771))
 - [Backup/exports] Retry when failing to read a data block during Delta Backup, Continuous Replication, disk and OVA export when NBD is enabled [PR #6763](https://github.com/vatesfr/xen-orchestra/pull/6763)
+- [Host] Smart reboot: suspend resident VMs, restart host and resume VMs [#6750](https://github.com/vatesfr/xen-orchestra/issues/6750) (PR [#6795](https://github.com/vatesfr/xen-orchestra/pull/6795))
 
 ### Bug fixes
 

packages/xo-web/src/common/intl/messages.js

@@ -931,6 +931,8 @@ const messages = {
   enableHostLabel: 'Enable',
   disableHostLabel: 'Disable',
   restartHostAgent: 'Restart toolstack',
+  smartRebootHostLabel: 'Smart reboot',
+  smartRebootHostTooltip: 'Suspend resident VMs, reboot host and resume VMs automatically',
   forceRebootHostLabel: 'Force reboot',
   rebootHostLabel: 'Reboot',
   noHostsAvailableErrorTitle: 'Error while restarting host',

packages/xo-web/src/common/xo/index.js

@@ -785,13 +785,13 @@ export const setRemoteSyslogHost = (host, syslogDestination) =>
 export const setRemoteSyslogHosts = (hosts, syslogDestination) =>
   Promise.all(map(hosts, host => setRemoteSyslogHost(host, syslogDestination)))
 
-export const restartHost = (host, force = false) =>
+export const restartHost = (host, force = false, suspendResidentVms = false) =>
   confirm({
     title: _('restartHostModalTitle'),
     body: _('restartHostModalMessage'),
   }).then(
     () =>
-      _call('host.restart', { id: resolveId(host), force })
+      _call('host.restart', { id: resolveId(host), force, suspendResidentVms })
         .catch(async error => {
           if (
             forbiddenOperation.is(error, {
@@ -809,7 +809,7 @@ export const restartHost = (host, force = false) =>
               ),
               title: _('restartHostModalTitle'),
             })
-            return _call('host.restart', { id: resolveId(host), force, bypassBackupCheck: true })
+            return _call('host.restart', { id: resolveId(host), force, suspendResidentVms, bypassBackupCheck: true })
           }
           throw error
         })

packages/xo-web/src/icons.scss

@@ -181,6 +181,10 @@
     @extend .fa;
     @extend .fa-play;
   }
+  &-freeze {
+    @extend .fa;
+    @extend .fa-snowflake-o;
+  }
   &-forget {
     @extend .fa;
     @extend .fa-ban;

packages/xo-web/src/xo-app/host/tab-advanced.js

@@ -62,6 +62,8 @@ const SCHED_GRAN_TYPE_OPTIONS = [
 
 const forceReboot = host => restartHost(host, true)
 
+const smartReboot = host => restartHost(host, false, true) // don't force, suspend resident VMs
+
 const formatPack = ({ name, author, description, version }, key) => (
   <tr key={key}>
     <th>{_('supplementalPackTitle', { author, name })}</th>
@@ -253,15 +255,25 @@ export default class extends Component {
             ) : (
               telemetryButton
             )}
-            {host.power_state === 'Running' && (
+            {host.power_state === 'Running' && [
               <TabButton
+                key='smart-reboot'
+                btnStyle='warning'
+                handler={smartReboot}
+                handlerParam={host}
+                icon='freeze'
+                labelId='smartRebootHostLabel'
+                tooltip={_('smartRebootHostTooltip')}
+              />,
+              <TabButton
+                key='force-reboot'
                 btnStyle='warning'
                 handler={forceReboot}
                 handlerParam={host}
                 icon='host-force-reboot'
                 labelId='forceRebootHostLabel'
-              />
-            )}
+              />,
+            ]}
             {host.enabled ? (
               <TabButton
                 btnStyle='warning'