mirror of
https://github.com/xcp-ng/xenadmin.git
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4b6e826ed3
For this purpose, the evacuate-reboot-bringbabiesback triplet was replaced by a new RestartHostPlanAction, which allows fallback to toolstack restart if live patching has succeeded. Also, created new abstract class HostPlanAction to reduce code duplication. Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
573 lines
22 KiB
C#
573 lines
22 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.ComponentModel;
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using System.Drawing;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Threading;
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using log4net;
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using XenAdmin.Controls;
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using XenAdmin.Diagnostics.Problems;
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using XenAdmin.Dialogs;
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using XenAdmin.Wizards.PatchingWizard.PlanActions;
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using XenAPI;
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using XenAdmin.Actions;
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using XenAdmin.Core;
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namespace XenAdmin.Wizards.PatchingWizard
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{
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public partial class PatchingWizard_PatchingPage : XenTabPage
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{
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protected static readonly ILog log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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public Dictionary<string, livepatch_status> LivePatchCodesByHost
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{
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get;
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set;
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}
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private bool _thisPageHasBeenCompleted = false;
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private BackgroundWorker actionsWorker = null;
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public PatchingWizard_PatchingPage()
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{
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InitializeComponent();
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}
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#region Accessors
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public List<Host> SelectedMasters { private get; set; }
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public List<Host> SelectedServers { private get; set; }
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public List<Pool> SelectedPools { private get; set; }
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public UpdateType SelectedUpdateType { private get; set; }
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public Pool_patch Patch { private get; set; }
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public Pool_update PoolUpdate { private get; set; }
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public string ManualTextInstructions { private get; set; }
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public bool IsAutomaticMode { private get; set; }
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public bool RemoveUpdateFile { private get; set; }
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public string SelectedNewPatch { private get; set; }
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public List<Problem> ProblemsResolvedPreCheck { private get; set; }
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public Dictionary<Host, VDI> SuppPackVdis { private get; set; }
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#endregion
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public override string Text
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{
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get
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{
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return Messages.PATCHINGWIZARD_PATCHINGPAGE_TEXT;
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}
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}
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public override string PageTitle
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{
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get
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{
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return Messages.PATCHINGWIZARD_PATCHINGPAGE_TITLE;
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}
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}
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public override string HelpID
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{
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get { return "InstallUpdate"; }
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}
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public override bool EnablePrevious()
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{
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return false;
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}
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private bool _nextEnabled;
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public override bool EnableNext()
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{
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return _nextEnabled;
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}
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private bool _cancelEnabled;
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public override bool EnableCancel()
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{
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return _cancelEnabled;
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}
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public override void PageLoaded(PageLoadedDirection direction)
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{
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base.PageLoaded(direction);
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if (_thisPageHasBeenCompleted)
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{
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actionsWorker = null;
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return;
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}
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if (!IsAutomaticMode)
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{
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textBoxLog.Text = ManualTextInstructions;
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List<AsyncAction> actions = new List<AsyncAction>();
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if (SelectedUpdateType == UpdateType.ISO && PoolUpdate != null)
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{
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//Ely or greater: iso update format
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foreach (var server in SelectedServers)
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actions.Add(new ApplyUpdateAction(PoolUpdate, server));
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}
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else
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{
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//legacy mode
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if (SelectedUpdateType != UpdateType.ISO)
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{
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foreach (var server in SelectedServers)
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actions.Add(new ApplyPatchAction(Patch, server));
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}
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else
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actions.Add(new InstallSupplementalPackAction(SuppPackVdis, false));
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}
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if (RemoveUpdateFile && SelectedUpdateType != UpdateType.ISO)
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{
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foreach (Pool pool in SelectedPools)
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{
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actions.Add(new PoolPatchCleanAction(pool, Patch, false));
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}
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}
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using (var multipleAction = new MultipleAction(Connection, "", "", "", actions, true, true, true))
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{
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multipleAction.Changed += action_Changed;
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multipleAction.Completed += action_Completed;
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multipleAction.RunAsync();
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}
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return;
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}
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_nextEnabled = false;
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OnPageUpdated();
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List<PlanAction> planActions = new List<PlanAction>();
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foreach (Pool pool in SelectedPools)
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{
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var poolHosts = new List<Host>(pool.Connection.Cache.Hosts);
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Host master = SelectedServers.Find(host => host.IsMaster() && poolHosts.Contains(host));
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//For Ely or greater: ISO updates only
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if (SelectedUpdateType == UpdateType.ISO && Helpers.ElyOrGreater(pool.Connection)) //updates for Ely (or higher) are always ISO
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{
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var poolUpdates = new List<Pool_update>(pool.Connection.Cache.Pool_updates);
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var poolUpdate = poolUpdates.FirstOrDefault(u => u != null && string.Equals(u.uuid, PoolUpdate.uuid, StringComparison.OrdinalIgnoreCase));
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//master first
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if (master != null && !poolUpdate.AppliedOn(master))
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{
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planActions.AddRange(CompilePoolUpdateActionList(master, poolUpdate));
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}
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//other hosts
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foreach (var host in SelectedServers.Where(s => poolHosts.Contains(s) && !s.IsMaster() && !poolUpdate.AppliedOn(s)).ToList())
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{
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planActions.AddRange(CompilePoolUpdateActionList(host, poolUpdate));
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}
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}
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// Legacy (pre-Ely) case: either ISO for supplemental packs (Pool_patch == null) or patch (Pool_patch != null)
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else
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{
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Pool_patch poolPatch = null;
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if (SelectedUpdateType != UpdateType.ISO)
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{
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List<Pool_patch> poolPatches = new List<Pool_patch>(pool.Connection.Cache.Pool_patches);
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poolPatch = poolPatches.Find(delegate(Pool_patch otherPatch)
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{
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if (Patch != null)
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return string.Equals(otherPatch.uuid, Patch.uuid, StringComparison.OrdinalIgnoreCase);
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return false;
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});
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}
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//master first
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if (master != null && (poolPatch == null || poolPatch.AppliedOn(master) == DateTime.MaxValue))
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planActions.AddRange(CompileActionList(master, poolPatch));
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foreach (Host server in SelectedServers)
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{
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if (poolHosts.Contains(server))
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{
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if (!server.IsMaster())
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{
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// check patch isn't already applied here
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if (poolPatch == null || poolPatch.AppliedOn(server) == DateTime.MaxValue)
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planActions.AddRange(CompileActionList(server, poolPatch));
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}
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}
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}
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if (RemoveUpdateFile)
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{
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planActions.Add(new RemoveUpdateFile(pool, poolPatch));
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}
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}
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} //end pool in foreach
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planActions.Add(new UnwindProblemsAction(ProblemsResolvedPreCheck));
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actionsWorker = new BackgroundWorker();
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actionsWorker.DoWork += new DoWorkEventHandler(PatchingWizardAutomaticPatchWork);
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actionsWorker.WorkerReportsProgress = true;
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actionsWorker.ProgressChanged += new ProgressChangedEventHandler(actionsWorker_ProgressChanged);
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actionsWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(actionsWorker_RunWorkerCompleted);
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actionsWorker.WorkerSupportsCancellation = true;
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actionsWorker.RunWorkerAsync(planActions);
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}
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#region manual_mode
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private void action_Completed(ActionBase sender)
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{
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_nextEnabled = true;
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_cancelEnabled = false;
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try
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{
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if (sender.Exception != null)
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{
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var multipleAction = sender as MultipleAction;
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var actionTitle = multipleAction != null ? multipleAction.SubActionTitle : sender.Title;
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Program.Invoke(Program.MainWindow, () => FinishedWithErrors(actionTitle, new Exception(actionTitle, sender.Exception)));
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}
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else
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Program.Invoke(Program.MainWindow, FinishedSuccessfully);
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}
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catch (Exception except)
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{
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Program.Invoke(Program.MainWindow, () => FinishedWithErrors(string.Empty, except));
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}
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Program.Invoke(Program.MainWindow, OnPageUpdated);
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_thisPageHasBeenCompleted = true;
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}
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private void action_Changed(ActionBase sender)
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{
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AsyncAction action = (AsyncAction)sender;
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Program.Invoke(Program.MainWindow, delegate { progressBar.Value = action.PercentComplete; });
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}
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#endregion
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#region automatic_mode
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private void actionsWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
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{
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if (!actionsWorker.CancellationPending)
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{
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PlanAction action = (PlanAction)e.UserState;
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if (e.ProgressPercentage == 0)
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textBoxLog.Text += action;
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else
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{
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textBoxLog.Text += string.Format("{0}\r\n", Messages.DONE);
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progressBar.Value += e.ProgressPercentage;
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}
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}
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}
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private void PatchingWizardAutomaticPatchWork(object obj, DoWorkEventArgs doWorkEventArgs)
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{
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List<PlanAction> actionList = (List<PlanAction>)doWorkEventArgs.Argument;
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foreach (PlanAction action in actionList)
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{
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try
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{
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if (actionsWorker.CancellationPending)
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{
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doWorkEventArgs.Cancel = true;
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return;
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}
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this.actionsWorker.ReportProgress(0, action);
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action.Run();
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Thread.Sleep(1000);
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this.actionsWorker.ReportProgress((int)((1.0 / (double)actionList.Count) * 100), action);
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}
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catch (Exception e)
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{
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log.Error("Failed to carry out plan.", e);
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log.Debug(actionList);
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doWorkEventArgs.Result = new Exception(action.Title, e);
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break;
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}
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}
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}
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private void actionsWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
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{
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if (!e.Cancelled)
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{
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Exception exception = e.Result as Exception;
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if (exception != null)
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{
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FinishedWithErrors(exception.Message, exception); // here exception.Message is the Title of the action that failed (see how doWorkEventArgs.Result is assigned above)
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}
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else
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{
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FinishedSuccessfully();
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}
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progressBar.Value = 100;
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_cancelEnabled = false;
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_nextEnabled = true;
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}
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OnPageUpdated();
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_thisPageHasBeenCompleted = true;
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}
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private List<PlanAction> CompileActionList(Host host, Pool_patch patch)
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{
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if (SelectedUpdateType == UpdateType.ISO)
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return CompileSuppPackActionList(host);
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List<PlanAction> actions = new List<PlanAction>();
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if (patch == null)
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return actions;
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actions.Add(new ApplyPatchPlanAction(host, patch));
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if (patch.after_apply_guidance.Contains(after_apply_guidance.restartHost)
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&& !(LivePatchCodesByHost != null && LivePatchCodesByHost.ContainsKey(host.uuid) && LivePatchCodesByHost[host.uuid] == livepatch_status.ok_livepatch_complete))
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{
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actions.Add(new RestartHostPlanAction(host, host.GetRunningVMs()));
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}
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if (patch.after_apply_guidance.Contains(after_apply_guidance.restartXAPI))
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{
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actions.Add(new RestartAgentPlanAction(host));
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}
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if (patch.after_apply_guidance.Contains(after_apply_guidance.restartHVM))
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{
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actions.Add(new RebootVMsPlanAction(host, host.GetRunningHvmVMs()));
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}
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if (patch.after_apply_guidance.Contains(after_apply_guidance.restartPV))
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{
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actions.Add(new RebootVMsPlanAction(host, host.GetRunningPvVMs()));
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}
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return actions;
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}
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private List<PlanAction> CompileSuppPackActionList(Host host)
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{
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List<PlanAction> actions = new List<PlanAction>();
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if (SelectedUpdateType != UpdateType.ISO || SuppPackVdis == null || !SuppPackVdis.ContainsKey(host))
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return actions;
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actions.Add(new InstallSupplementalPackPlanAction(host, SuppPackVdis[host]));
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// after_apply_guidance is restartHost
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actions.Add(new RestartHostPlanAction(host, host.GetRunningVMs()));
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return actions;
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}
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private List<PlanAction> CompilePoolUpdateActionList(Host host, Pool_update poolUpdate)
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{
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List<PlanAction> actions = new List<PlanAction>();
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if (SelectedUpdateType != UpdateType.ISO || poolUpdate == null)
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return actions;
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actions.Add(new ApplyPoolUpdatePlanAction(host, poolUpdate));
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if (poolUpdate.after_apply_guidance.Contains(update_after_apply_guidance.restartHost)
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&& !(LivePatchCodesByHost != null && LivePatchCodesByHost.ContainsKey(host.uuid) && LivePatchCodesByHost[host.uuid] == livepatch_status.ok_livepatch_complete))
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{
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actions.Add(new RestartHostPlanAction(host, host.GetRunningVMs()));
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}
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if (poolUpdate.after_apply_guidance.Contains(update_after_apply_guidance.restartXAPI))
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{
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actions.Add(new RestartAgentPlanAction(host));
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}
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if (poolUpdate.after_apply_guidance.Contains(update_after_apply_guidance.restartHVM))
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{
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actions.Add(new RebootVMsPlanAction(host, host.GetRunningHvmVMs()));
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}
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if (poolUpdate.after_apply_guidance.Contains(update_after_apply_guidance.restartPV))
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{
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actions.Add(new RebootVMsPlanAction(host, host.GetRunningPvVMs()));
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}
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return actions;
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}
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#endregion
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private void FinishedWithErrors(string actionTitle, Exception exception)
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{
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labelTitle.Text = string.Format(Messages.UPDATE_WAS_NOT_COMPLETED, GetUpdateName());
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string errorMessage = null;
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if (exception != null && exception.InnerException != null && exception.InnerException is Failure)
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{
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var innerEx = exception.InnerException as Failure;
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errorMessage = string.Format(Messages.STRING_SPACE_STRING, actionTitle, innerEx.Message);
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if (innerEx.ErrorDescription != null && innerEx.ErrorDescription.Count > 0)
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log.Error(string.Concat(innerEx.ErrorDescription.ToArray()));
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}
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labelError.Text = errorMessage ?? string.Format(Messages.PATCHING_WIZARD_ERROR, exception.Message);
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log.ErrorFormat("Error message displayed: {0}", labelError.Text);
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pictureBox1.Image = SystemIcons.Error.ToBitmap();
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if (exception.InnerException is SupplementalPackInstallFailedException)
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{
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errorLinkLabel.Visible = true;
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errorLinkLabel.Tag = exception.InnerException;
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}
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panel1.Visible = true;
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}
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/// <summary>
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/// Live patching is attempted for a host if the LivePatchCodesByHost contains the LIVEPATCH_COMPLETE value for that host
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/// </summary>
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/// <param name="host"></param>
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/// <returns></returns>
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private bool LivePatchingAttemptedForHost(Host host)
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{
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return LivePatchCodesByHost != null && LivePatchCodesByHost.ContainsKey(host.uuid) &&
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LivePatchCodesByHost[host.uuid] == livepatch_status.ok_livepatch_complete;
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}
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/// <summary>
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/// Returns true if <paramref name="host"/> has to be rebooted for this update
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/// </summary>
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private bool HostRequiresReboot(Host host)
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{
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return
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host.updates_requiring_reboot !=null && PoolUpdate != null
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&& host.updates_requiring_reboot.Select(uRef => host.Connection.Resolve(uRef)).Any(u => u != null && u.uuid.Equals(PoolUpdate.uuid));
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}
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private void FinishedSuccessfully()
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{
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labelTitle.Text = string.Format(Messages.UPDATE_WAS_SUCCESSFULLY_INSTALLED, GetUpdateName());
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pictureBox1.Image = null;
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labelError.Text = Messages.CLOSE_WIZARD_CLICK_FINISH;
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// Live patching failed is per-host
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var livePatchingFailedHosts = new List<Host>();
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foreach (var host in SelectedMasters)
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{
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if (LivePatchingAttemptedForHost(host) && HostRequiresReboot(host))
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{
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livePatchingFailedHosts.Add(host);
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}
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}
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if (livePatchingFailedHosts.Count == 0)
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{
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return;
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}
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LivePatchingFailed(livePatchingFailedHosts);
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}
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private void LivePatchingFailed(IList<Host> hosts)
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{
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string dialogMessage;
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if (hosts.Count == 1)
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{
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dialogMessage = string.Format(Messages.LIVE_PATCHING_FAILED_ONE_HOST, hosts[0]);
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}
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else
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{
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dialogMessage = string.Format(Messages.LIVE_PATCHING_FAILED_MULTI_HOST,
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string.Join(Messages.LIST_SEPARATOR, hosts.Select(s => s.ToString().SurroundWith('\''))));
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}
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using (var dlg = new ThreeButtonDialog(
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new ThreeButtonDialog.Details(SystemIcons.Warning,
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dialogMessage, Messages.XENCENTER),
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ThreeButtonDialog.ButtonOK))
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{
|
|
dlg.ShowDialog(Program.MainWindow);
|
|
}
|
|
}
|
|
|
|
private string GetUpdateName()
|
|
{
|
|
if (Patch != null)
|
|
return Patch.Name();
|
|
try
|
|
{
|
|
return new FileInfo(SelectedNewPatch).Name;
|
|
}
|
|
catch (Exception)
|
|
{
|
|
return SelectedNewPatch;
|
|
}
|
|
}
|
|
|
|
private void errorLinkLabel_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
|
|
{
|
|
if (errorLinkLabel.Tag is Exception)
|
|
ShowMoreInfo(errorLinkLabel.Tag as Exception);
|
|
}
|
|
|
|
private void ShowMoreInfo(Exception exception)
|
|
{
|
|
if (!(exception is SupplementalPackInstallFailedException))
|
|
return;
|
|
var msg = string.Format(Messages.SUPP_PACK_INSTALL_FAILED_MORE_INFO, exception.Message);
|
|
using (var dlg = new ThreeButtonDialog(new ThreeButtonDialog.Details(SystemIcons.Error, msg)))
|
|
{
|
|
dlg.ShowDialog(this);
|
|
}
|
|
}
|
|
}
|
|
}
|