mirror of
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499 lines
21 KiB
C#
499 lines
21 KiB
C#
/* Copyright (c) Citrix Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using XenAdmin.Actions;
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using XenAdmin.Actions.VMActions;
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using XenAdmin.Commands;
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using XenAdmin.Controls;
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using XenAdmin.Core;
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using XenAdmin.Dialogs;
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using XenAdmin.Mappings;
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using XenAdmin.Network;
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using XenAdmin.Wizards.GenericPages;
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using XenAPI;
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namespace XenAdmin.Wizards.CrossPoolMigrateWizard
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{
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public enum WizardMode { Migrate, Move, Copy }
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internal partial class CrossPoolMigrateWizard : XenWizardBase
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{
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private CrossPoolMigrateDestinationPage m_pageDestination;
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private CrossPoolMigrateStoragePage m_pageStorage;
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private CrossPoolMigrateNetworkingPage m_pageNetwork;
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private CrossPoolMigrateFinishPage m_pageFinish;
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private CrossPoolMigrateTransferNetworkPage m_pageTransferNetwork;
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private RBACWarningPage m_pageTargetRbac;
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private CrossPoolMigrateCopyModePage m_pageCopyMode;
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private IntraPoolCopyPage m_pageIntraPoolCopy;
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private IXenConnection TargetConnection { get; set; }
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private Dictionary<string, VmMapping> m_vmMappings = new Dictionary<string, VmMapping>();
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private Host hostPreSelection = null;
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private WizardMode wizardMode;
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private bool _resumeAfterMigrate;
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// Note that resumeAfter is currently only implemented for Migrate mode, used for resume on server functionality
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public CrossPoolMigrateWizard(IXenConnection con, SelectedItemCollection selection, Host targetHostPreSelection, WizardMode mode, bool resumeAfterMigrate = false)
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: base(con)
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{
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InitializeComponent();
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hostPreSelection = targetHostPreSelection;
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wizardMode = mode;
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InitialiseWizard(selection);
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_resumeAfterMigrate = resumeAfterMigrate;
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}
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private bool HasTemplatesOnly { get; set; }
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private bool IsIntraPoolMigration()
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{
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return m_vmMappings.All(IsIntraPoolMigration);
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}
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private bool IsIntraPoolMigration(KeyValuePair<string, VmMapping> mapping)
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{
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VM vm = xenConnection.Resolve(new XenRef<VM>(mapping.Key));
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if (vm.resident_on == mapping.Value.XenRef)
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return true;
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Pool pool = Helpers.GetPool(vm.Connection);
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if (mapping.Value.XenRef is XenRef<Pool>)
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{
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Pool targetPool = TargetConnection.Resolve(mapping.Value.XenRef as XenRef<Pool>);
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if ( pool == targetPool)
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return true;
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}
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Host host = xenConnection.Resolve(vm.resident_on) ?? Helpers.GetMaster(xenConnection);
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if (mapping.Value.XenRef is XenRef<Host>)
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{
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Host targetHost = TargetConnection.Resolve(mapping.Value.XenRef as XenRef<Host>);
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Pool targetPool = Helpers.GetPool(targetHost.Connection);
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// 2 stand alone hosts
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if(pool == null && targetPool == null)
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{
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if(targetHost == host)
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return true;
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return false;
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}
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if ( pool == targetPool)
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return true;
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}
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return false;
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}
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private bool IsIntraPoolMove()
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{
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return wizardMode == WizardMode.Move && m_vmMappings.All(IsIntraPoolMove);
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}
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private bool IsIntraPoolMove(KeyValuePair<string, VmMapping> mapping)
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{
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VM vm = xenConnection.Resolve(new XenRef<VM>(mapping.Key));
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return vm != null && vm.CanBeMoved() && IsIntraPoolMigration(mapping);
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}
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private bool IsCopyTemplate()
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{
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return wizardMode == WizardMode.Copy && m_vmMappings.Any(IsTemplate);
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}
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private bool IsTemplate(KeyValuePair<string, VmMapping> mapping)
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{
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VM vm = xenConnection.Resolve(new XenRef<VM>(mapping.Key));
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return vm != null && vm.is_a_template;
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}
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private void InitialiseWizard(SelectedItemCollection selection)
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{
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var vmsFromSelection = new List<VM>();
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foreach (var item in selection)
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{
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var vm = item.XenObject as VM;
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if (vm == null)
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continue;
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vmsFromSelection.Add(vm);
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m_vmMappings.Add(item.XenObject.opaque_ref, new VmMapping { VmNameLabel = item.XenObject.Name() });
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}
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HasTemplatesOnly = vmsFromSelection.Count > 0 && vmsFromSelection.All(vm => vm.is_a_template);
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UpdateWindowTitle();
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m_pageDestination = new CrossPoolMigrateDestinationPage(vmsFromSelection,
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wizardMode, GetSourceConnectionsForSelection(selection))
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{
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VmMappings = m_vmMappings,
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Connection = selection.GetConnectionOfFirstItem()
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};
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m_pageDestination.SetDefaultTarget(hostPreSelection);
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m_pageStorage = new CrossPoolMigrateStoragePage(wizardMode);
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m_pageNetwork = new CrossPoolMigrateNetworkingPage(HasTemplatesOnly, wizardMode);
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m_pageTransferNetwork = new CrossPoolMigrateTransferNetworkPage(vmsFromSelection, HasTemplatesOnly, wizardMode);
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m_pageFinish = new CrossPoolMigrateFinishPage(selection.Count(), wizardMode, HasTemplatesOnly) { SummaryRetreiver = GetVMMappingSummary };
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m_pageTargetRbac = new RBACWarningPage();
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m_pageCopyMode = new CrossPoolMigrateCopyModePage(vmsFromSelection);
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m_pageIntraPoolCopy = new IntraPoolCopyPage(vmsFromSelection);
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if (wizardMode == WizardMode.Copy)
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AddPages(m_pageCopyMode, m_pageIntraPoolCopy);
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else
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AddPages(m_pageDestination, m_pageStorage, m_pageFinish);
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}
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public sealed override string Text
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{
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get { return base.Text; }
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set { base.Text = value; }
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}
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protected override void FinishWizard()
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{
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if (!AllVMsAvailable(m_vmMappings, xenConnection))
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{
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base.FinishWizard();
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return;
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}
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if (wizardMode == WizardMode.Copy && m_pageCopyMode.IntraPoolCopySelected)
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{
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if (m_pageIntraPoolCopy.CloneVM)
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new VMCloneAction(m_pageIntraPoolCopy.TheVM, m_pageIntraPoolCopy.NewVmName, m_pageIntraPoolCopy.NewVMmDescription).RunAsync();
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else if (m_pageIntraPoolCopy.SelectedSR != null)
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new VMCopyAction(m_pageIntraPoolCopy.TheVM, m_pageIntraPoolCopy.TheVM.GetStorageHost(false),
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m_pageIntraPoolCopy.SelectedSR, m_pageIntraPoolCopy.NewVmName, m_pageIntraPoolCopy.NewVMmDescription).RunAsync();
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base.FinishWizard();
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return;
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}
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foreach (KeyValuePair<string, VmMapping> pair in m_vmMappings)
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{
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VM vm = xenConnection.Resolve(new XenRef<VM>(pair.Key));
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Host target = TargetConnection.Resolve(m_vmMappings[pair.Key].XenRef as XenRef<Host>);
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//if a pool has been selected but no specific homeserver Key is the pool opaque ref
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if(target == null)
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{
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Pool targetPool = TargetConnection.Resolve(m_vmMappings[pair.Key].XenRef as XenRef<Pool>);
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if (targetPool == null)
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{
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ShowErrorMessageBox(Messages.CPM_WIZARD_ERROR_TARGET_DISCONNECTED);
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base.FinishWizard();
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return;
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}
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target = TargetConnection.Resolve(targetPool.master);
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}
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if(target == null)
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throw new ApplicationException("Cannot resolve the target host");
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if (wizardMode == WizardMode.Move && IsIntraPoolMove(pair))
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new VMMoveAction(vm, pair.Value.Storage, target).RunAsync();
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else
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{
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var isCopy = wizardMode == WizardMode.Copy;
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var migrateAction =
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new VMCrossPoolMigrateAction(vm, target, SelectedTransferNetwork, pair.Value, isCopy);
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if (_resumeAfterMigrate)
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{
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var title = VMCrossPoolMigrateAction.GetTitle(vm, target, isCopy);
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var startDescription = isCopy ? Messages.ACTION_VM_COPYING: Messages.ACTION_VM_MIGRATING;
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var endDescription = isCopy ? Messages.ACTION_VM_COPIED: Messages.ACTION_VM_MIGRATED;
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var actions = new List<AsyncAction>()
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{
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migrateAction,
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new ResumeAndStartVMsAction(vm.Connection, target, new List<VM>{vm}, new List<VM>(), null, null)
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};
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new MultipleAction(vm.Connection, title, startDescription, endDescription,
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actions, true, false, true).RunAsync();
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}
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else
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{
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migrateAction.RunAsync();
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}
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}
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}
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base.FinishWizard();
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}
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private static void ShowErrorMessageBox(string message)
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{
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using (var dlg = new ThreeButtonDialog(new ThreeButtonDialog.Details(SystemIcons.Error, message)))
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{
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dlg.ShowDialog(Program.MainWindow);
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}
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}
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private List<IXenConnection> GetSourceConnectionsForSelection(IEnumerable<SelectedItem> selection)
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{
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return
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wizardMode == WizardMode.Copy
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? selection.Select(item => item.Connection).Where(conn => conn != null).Distinct().ToList()
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: new List<IXenConnection>();
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}
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private void UpdateWindowTitle()
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{
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if(m_vmMappings != null && m_vmMappings.Count > 0 && !string.IsNullOrEmpty(m_vmMappings.First().Value.TargetName))
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{
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var messageText = wizardMode == WizardMode.Migrate
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? Messages.CPM_WIZARD_TITLE_AND_LOCATION
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: wizardMode == WizardMode.Move
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? Messages.MOVE_VM_WIZARD_TITLE_AND_LOCATION
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: IsCopyTemplate() ? Messages.COPY_TEMPLATE_WIZARD_TITLE_AND_LOCATION : Messages.COPY_VM_WIZARD_TITLE_AND_LOCATION;
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Text = String.Format(messageText, m_vmMappings.First().Value.TargetName);
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}
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else
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Text = wizardMode == WizardMode.Migrate
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? Messages.CPM_WIZARD_TITLE
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: wizardMode == WizardMode.Move
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? Messages.MOVE_VM_WIZARD_TITLE
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: IsCopyTemplate() ? Messages.COPY_TEMPLATE_WIZARD_TITLE : Messages.COPY_VM_WIZARD_TITLE;
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}
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protected override void UpdateWizardContent(XenTabPage page)
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{
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Type type = page.GetType();
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if (type == typeof(CrossPoolMigrateDestinationPage))
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{
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RemovePage(m_pageNetwork);
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RemovePage(m_pageTransferNetwork);
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RemovePage(m_pageTargetRbac);
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m_vmMappings = m_pageDestination.VmMappings;
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TargetConnection = m_pageDestination.ChosenItem == null ? null : m_pageDestination.ChosenItem.Connection;
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m_pageStorage.TargetConnection = TargetConnection;
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m_pageNetwork.TargetConnection = TargetConnection;
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ConfigureRbacPage();
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UpdateWindowTitle();
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// add Transfer network page for all cases except intra-pool move (which is performed via VMMoveAction)
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if (!IsIntraPoolMove())
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AddAfterPage(m_pageStorage, m_pageTransferNetwork);
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m_pageTransferNetwork.Connection = TargetConnection;
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if(!IsIntraPoolMigration())
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{
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AddAfterPage(m_pageStorage, m_pageNetwork);
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}
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//If no network mappings xapi should map the networks
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//with the same names together - ideal for intra-pool
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ClearAllNetworkMappings();
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m_pageStorage.VmMappings = m_vmMappings;
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}
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else if (type == typeof(CrossPoolMigrateStoragePage))
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{
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UpdateWindowTitle();
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m_vmMappings = m_pageStorage.VmMappings;
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m_pageNetwork.VmMappings = m_vmMappings;
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}
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else if (type == typeof(CrossPoolMigrateNetworkingPage))
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{
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UpdateWindowTitle();
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m_vmMappings = m_pageNetwork.VmMappings;
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}
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else if (type == typeof(CrossPoolMigrateTransferNetworkPage))
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{
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UpdateWindowTitle();
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string netRef = m_pageTransferNetwork.NetworkUuid.Key;
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SelectedTransferNetwork = TargetConnection.Cache.Networks.FirstOrDefault(n => n.uuid == netRef);
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}
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else if (type == typeof(CrossPoolMigrateCopyModePage))
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{
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if (m_pageCopyMode.IntraPoolCopySelected)
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{
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RemovePagesFrom(1);
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AddAfterPage(m_pageCopyMode, m_pageIntraPoolCopy);
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}
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else
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{
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RemovePagesFrom(1);
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AddAfterPage(m_pageCopyMode, m_pageDestination, m_pageStorage, m_pageFinish);
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}
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}
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if (type != typeof(CrossPoolMigrateFinishPage))
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NotifyNextPagesOfChange(m_pageDestination, m_pageStorage, m_pageNetwork, m_pageTransferNetwork, m_pageFinish);
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}
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private XenAPI.Network SelectedTransferNetwork { get; set; }
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private void ClearAllNetworkMappings()
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{
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foreach (KeyValuePair<string, VmMapping> pair in m_vmMappings)
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pair.Value.Networks = new Dictionary<string, XenAPI.Network>();
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}
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protected override string WizardPaneHelpID()
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{
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return FormatHelpId(CurrentStepTabPage.HelpID);
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}
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private bool ConnectionDoesNotRequireRBAC(IXenConnection connection)
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{
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if( connection == null )
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throw new NullReferenceException("RBAC check was given a null connection");
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if (connection.Session.IsLocalSuperuser)
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return true;
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if (Helpers.GetMaster(connection).external_auth_type == Auth.AUTH_TYPE_NONE)
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return true;
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return false;
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}
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private void ConfigureRbacPage()
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{
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if (ConnectionDoesNotRequireRBAC(xenConnection) && ConnectionDoesNotRequireRBAC(TargetConnection))
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return;
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m_pageTargetRbac.ClearPermissionChecks();
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RBACWarningPage.WizardPermissionCheck migrateCheck =
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new RBACWarningPage.WizardPermissionCheck(Messages.RBAC_CROSS_POOL_MIGRATE_VM_BLOCKED) { Blocking = true };
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migrateCheck.AddApiCheckRange(VMCrossPoolMigrateAction.StaticRBACDependencies);
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m_pageTargetRbac.AddPermissionChecks(xenConnection, migrateCheck);
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if (!xenConnection.Equals(TargetConnection))
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m_pageTargetRbac.AddPermissionChecks(TargetConnection, migrateCheck);
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AddAfterPage(m_pageDestination, m_pageTargetRbac);
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}
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private IEnumerable<SummaryDetails> GetVMMappingSummary()
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{
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//Use decorators to build a summary
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MappingSummary summary = new VMMappingSummary();
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foreach (KeyValuePair<string, VmMapping> pair in m_vmMappings)
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{
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if (HasTemplatesOnly)
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summary = new TemplateTitleSummary(summary, pair.Value);
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else
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summary = new VmTitleSummary(summary, pair.Value);
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summary = new DestinationPoolSummary(summary, pair.Value, TargetConnection);
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summary = new TargetServerSummary(summary, pair.Value, TargetConnection);
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summary = new TransferNetworkSummary(summary, m_pageTransferNetwork.NetworkUuid.Value);
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summary = new StorageSummary(summary, pair.Value, xenConnection);
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summary = new NetworkSummary(summary, pair.Value, xenConnection);
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summary = new SummarySplitter(summary);
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}
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return summary.Details;
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}
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/// <summary>
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/// Checks if all VMs are still available for migration and shows a warning message if the check fails
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/// </summary>
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/// <returns>true if check succeded, false if failed</returns>
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internal static bool AllVMsAvailable(List<VM> vms)
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{
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Func<bool> vmCheck = delegate
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{
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if (vms == null || vms.Count == 0 || vms[0] == null || vms[0].Connection == null)
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return false;
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var connection = vms[0].Connection; // the connection on which to check VM availability
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return vms.All(vm => connection.Resolve(new XenRef<VM>(vm.opaque_ref)) != null);
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};
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return PerformCheck(vmCheck);
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}
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/// <summary>
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/// Checks if all VMs are still available for migration and shows a warning message if the check fails
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/// </summary>
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/// <returns>true if check succeded, false if failed</returns>
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internal static bool AllVMsAvailable(Dictionary<string, VmMapping> vmMappings, IXenConnection connection)
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{
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Func<bool> vmCheck = delegate
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{
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if (vmMappings == null || vmMappings.Count == 0 || connection == null)
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return false;
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return vmMappings.All(kvp => connection.Resolve(new XenRef<VM>(kvp.Key)) != null);
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};
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return PerformCheck(vmCheck);
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}
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/// <summary>
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/// Performs a certain check and shows a warning message if the check fails
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/// </summary>
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/// <param name="check">The check to perform</param>
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/// <returns>true if check succeded, false if failed</returns>
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private static bool PerformCheck(Func<bool> check)
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{
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if (check())
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return true;
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ShowErrorMessageBox(Messages.CPM_WIZARD_VM_MISSING_ERROR);
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return false;
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}
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internal static void ShowWarningMessageBox(string message)
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{
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using (var dlg = new ThreeButtonDialog(
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new ThreeButtonDialog.Details(SystemIcons.Warning, message, Messages.CPM_WIZARD_TITLE)))
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{
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dlg.ShowDialog(Program.MainWindow);
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}
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}
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}
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}
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