feat(xo-server,xo-web/snapshot): ability to snapshot the VM memory (#3812)

Fixes #3795

CHANGELOG.md

@@ -7,6 +7,7 @@
 - [Backup NG] Restore logs moved to restore tab [#3772](https://github.com/vatesfr/xen-orchestra/issues/3772) (PR [#3802](https://github.com/vatesfr/xen-orchestra/pull/3802))
 - [Remotes] New SMB implementation that provides better stability and performance [#2257](https://github.com/vatesfr/xen-orchestra/issues/2257) (PR [#3708](https://github.com/vatesfr/xen-orchestra/pull/3708))
 - [VM/advanced] ACL management from VM view [#3040](https://github.com/vatesfr/xen-orchestra/issues/3727) (PR [#3040](https://github.com/vatesfr/xen-orchestra/pull/3774))
+- [VM / snapshots] Ability to save the VM memory [#3795](https://github.com/vatesfr/xen-orchestra/issues/3795) (PR [#3812](https://github.com/vatesfr/xen-orchestra/pull/3812))
 
 ### Bug fixes
 

packages/xo-server/src/xapi/mixins/vm.js

@@ -20,12 +20,19 @@ export default {
   // https://xapi-project.github.io/xen-api/classes/vm.html#checkpoint
   async checkpointVm(vmId, nameLabel) {
     const vm = this.getObject(vmId)
-    const ref = await this.callAsync(
-      'VM.checkpoint',
-      vm.$ref,
-      nameLabel != null ? nameLabel : vm.name_label
-    ).then(extractOpaqueRef)
-    return this.barrier(ref)
+    try {
+      const ref = await this.callAsync(
+        'VM.checkpoint',
+        vm.$ref,
+        nameLabel != null ? nameLabel : vm.name_label
+      ).then(extractOpaqueRef)
+      return this.barrier(ref)
+    } catch (error) {
+      if (error.code === 'VM_BAD_POWER_STATE') {
+        return this._snapshotVm(vm, nameLabel)
+      }
+      throw error
+    }
   },
 
   // TODO: clean up on error.

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

@@ -1001,6 +1001,8 @@ const messages = {
 
   // ----- VM snapshot tab -----
   noSnapshots: 'No snapshots',
+  newSnapshotWithMemory: 'New snapshot with memory',
+  snapshotMemorySaved: 'memory saved',
   snapshotCreateButton: 'New snapshot',
   tipCreateSnapshotLabel: 'Just click on the snapshot button to create one!',
   revertSnapshot: 'Revert VM to this snapshot',
@@ -1477,9 +1479,8 @@ const messages = {
   restartVmsModalTitle: 'Restart VM{vms, plural, one {} other {s}}',
   restartVmsModalMessage:
     'Are you sure you want to restart {vms, number} VM{vms, plural, one {} other {s}}?',
+  snapshotSaveMemory: 'save memory',
   snapshotVmsModalTitle: 'Snapshot VM{vms, plural, one {} other {s}}',
-  snapshotVmsModalMessage:
-    'Are you sure you want to snapshot {vms, number} VM{vms, plural, one {} other {s}}?',
   deleteVmsModalTitle: 'Delete VM{vms, plural, one {} other {s}}',
   deleteVmsModalMessage:
     'Are you sure you want to delete {vms, number} VM{vms, plural, one {} other {s}}? ALL VM DISKS WILL BE REMOVED',

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

@@ -1116,13 +1116,19 @@ export const deleteTemplates = templates =>
           }, noop)
   }, noop)
 
-export const snapshotVm = vm => _call('vm.snapshot', { id: resolveId(vm) })
+export const snapshotVm = (vm, saveMemory) =>
+  _call('vm.snapshot', { id: resolveId(vm), saveMemory })
 
+import SnapshotVmModalBody from './snapshot-vm-modal' // eslint-disable-line import/first
 export const snapshotVms = vms =>
   confirm({
+    icon: 'memory',
     title: _('snapshotVmsModalTitle', { vms: vms.length }),
-    body: _('snapshotVmsModalMessage', { vms: vms.length }),
-  }).then(() => map(vms, vmId => snapshotVm({ id: vmId })), noop)
+    body: <SnapshotVmModalBody />,
+  }).then(
+    saveMemory => Promise.all(map(vms, vm => snapshotVm(vm, saveMemory))),
+    noop
+  )
 
 export const deleteSnapshot = vm =>
   confirm({

packages/xo-web/src/common/xo/snapshot-vm-modal/index.js

@@ -0,0 +1,23 @@
+import Component from 'base-component'
+import React from 'react'
+
+import _ from '../../intl'
+
+export default class SnapshotVmModalBody extends Component {
+  get value() {
+    return this.state.saveMemory
+  }
+
+  render() {
+    return (
+      <label>
+        <input
+          type='checkbox'
+          onChange={this.linkState('saveMemory')}
+          checked={this.state.saveMemory}
+        />{' '}
+        {_('snapshotSaveMemory')}
+      </label>
+    )
+  }
+}

packages/xo-web/src/xo-app/vm/tab-snapshots.js

@@ -48,10 +48,18 @@ const COLUMNS = [
   },
   {
     itemRenderer: snapshot => (
-      <Text
-        onChange={value => editVm(snapshot, { name_label: value })}
-        value={snapshot.name_label}
-      />
+      <div>
+        <Text
+          onChange={value => editVm(snapshot, { name_label: value })}
+          value={snapshot.name_label}
+        />{' '}
+        {/* checkpoint snapshots are in a Suspended state */}
+        {snapshot.power_state === 'Suspended' && (
+          <Tooltip content={_('snapshotMemorySaved')}>
+            <Icon icon='memory' color='text-success' />
+          </Tooltip>
+        )}
+      </div>
     ),
     name: _('snapshotName'),
     sortCriteria: _ => _.name_label,
@@ -107,6 +115,8 @@ const INDIVIDUAL_ACTIONS = [
   },
 ]
 
+const _snapshotVmWithMemory = vm => snapshotVm(vm, true)
+
 @connectStore(() => ({
   snapshots: createGetObjectsOfType('VM-snapshot')
     .pick((_, props) => props.vm.snapshots)
@@ -119,6 +129,16 @@ export default class TabSnapshot extends Component {
       <Container>
         <Row>
           <Col className='text-xs-right'>
+            {vm.power_state !== 'Halted' && (
+              <TabButton
+                btnStyle='primary'
+                handler={_snapshotVmWithMemory}
+                handlerParam={vm}
+                icon='memory'
+                labelId='newSnapshotWithMemory'
+                pending={includes(vm.current_operations, 'checkpoint')}
+              />
+            )}
             <TabButton
               btnStyle='primary'
               handler={snapshotVm}