mirror of
https://github.com/xcp-ng/xenadmin.git
synced 2024-12-22 08:26:03 +01:00
575 lines
21 KiB
C#
575 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.ComponentModel;
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using System.Drawing;
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using System.IO;
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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 System.Linq;
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using XenAdmin.Core;
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using XenAdmin.Network;
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using System.Text;
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using System.Diagnostics;
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namespace XenAdmin.Wizards.PatchingWizard
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{
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public partial class PatchingWizard_AutomatedUpdatesPage : XenTabPage
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{
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protected static readonly ILog log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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public XenAdmin.Core.Updates.UpgradeSequence UpgradeSequences { get; set; }
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private bool _thisPageIsCompleted = false;
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public List<Problem> ProblemsResolvedPreCheck { private get; set; }
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public List<Pool> SelectedPools { private get; set; }
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private List<PoolPatchMapping> patchMappings = new List<PoolPatchMapping>();
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public Dictionary<XenServerPatch, string> AllDownloadedPatches = new Dictionary<XenServerPatch, string>();
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private List<UpdateProgressBackgroundWorker> backgroundWorkers = new List<UpdateProgressBackgroundWorker>();
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public PatchingWizard_AutomatedUpdatesPage()
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{
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InitializeComponent();
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}
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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_AUTOUPDATINGPAGE_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_AUTOUPDATINGPAGE_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 ""; }
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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 PageCancelled()
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{
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if (!_thisPageIsCompleted)
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{
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backgroundWorkers.ForEach(bgw => bgw.CancelAsync());
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backgroundWorkers.Clear();
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}
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base.PageCancelled();
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}
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public override void PageLeave(PageLoadedDirection direction, ref bool cancel)
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{
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base.PageLeave(direction, ref cancel);
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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 (_thisPageIsCompleted)
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{
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return;
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}
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foreach (var pool in SelectedPools)
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{
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var master = Helpers.GetMaster(pool.Connection);
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var planActions = new List<PlanAction>();
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var delayedActionsByHost = new Dictionary<Host, List<PlanAction>>();
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foreach (var host in pool.Connection.Cache.Hosts)
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{
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delayedActionsByHost.Add(host, new List<PlanAction>());
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}
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var hosts = pool.Connection.Cache.Hosts;
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var us = Updates.GetUpgradeSequence(pool.Connection);
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Debug.Assert(us != null, "Update sequence should not be null.");
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if (us != null)
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{
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foreach (var patch in us.UniquePatches)
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{
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var hostsToApply = us.Where(u => u.Value.Contains(patch)).Select(u => u.Key).ToList();
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hostsToApply.Sort();
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planActions.Add(new DownloadPatchPlanAction(master.Connection, patch, AllDownloadedPatches));
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planActions.Add(new UploadPatchToMasterPlanAction(master.Connection, patch, patchMappings, AllDownloadedPatches));
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planActions.Add(new PatchPrechecksOnMultipleHostsInAPoolPlanAction(master.Connection, patch, hostsToApply, patchMappings));
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foreach (var host in hostsToApply)
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{
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planActions.Add(new ApplyXenServerPatchPlanAction(host, patch, patchMappings));
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planActions.AddRange(GetMandatoryActionListForPatch(delayedActionsByHost[host], host, patch));
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UpdateDelayedAfterPatchGuidanceActionListForHost(delayedActionsByHost[host], host, patch);
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}
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//clean up master at the end:
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planActions.Add(new RemoveUpdateFileFromMasterPlanAction(master, patchMappings, patch));
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}//patch
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}
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//add all delayed actions to the end of the actions, per host
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var delayedActions = new List<PlanAction>();
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if (delayedActionsByHost.ContainsKey(master))
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{
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delayedActions.AddRange(delayedActionsByHost[master]);
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}
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foreach (var kvp in delayedActionsByHost)
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{
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if (kvp.Key != master)
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{
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delayedActions.AddRange(kvp.Value);
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}
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}
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if (planActions.Count > 0)
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{
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var bgw = new UpdateProgressBackgroundWorker(master, planActions, delayedActions);
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backgroundWorkers.Add(bgw);
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}
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} //foreach in SelectedMasters
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foreach (var bgw in backgroundWorkers)
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{
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bgw.DoWork += new DoWorkEventHandler(WorkerDoWork);
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bgw.WorkerReportsProgress = true;
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bgw.ProgressChanged += new ProgressChangedEventHandler(WorkerProgressChanged);
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bgw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(WorkerCompleted);
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bgw.WorkerSupportsCancellation = true;
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bgw.RunWorkerAsync();
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}
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if (backgroundWorkers.Count == 0)
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{
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_thisPageIsCompleted = true;
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_nextEnabled = true;
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OnPageUpdated();
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}
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}
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#region automatic_mode
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private List<PlanAction> doneActions = new List<PlanAction>();
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private List<PlanAction> inProgressActions = new List<PlanAction>();
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private List<PlanAction> errorActions = new List<PlanAction>();
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private void WorkerProgressChanged(object sender, ProgressChangedEventArgs e)
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{
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var actionsWorker = sender as BackgroundWorker;
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Program.Invoke(Program.MainWindow, () =>
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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 (action != null)
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{
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if (e.ProgressPercentage == 0)
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{
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inProgressActions.Add(action);
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}
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else
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{
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doneActions.Add(action);
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inProgressActions.Remove(action);
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progressBar.Value += (int)((float)e.ProgressPercentage / (float)backgroundWorkers.Count); //extend with error handling related numbers
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}
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}
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UpdateStatusTextBox();
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}
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});
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}
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private void UpdateStatusTextBox()
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{
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var sb = new StringBuilder();
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foreach (var pa in doneActions)
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{
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if (pa.Visible)
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{
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sb.Append(pa);
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sb.AppendLine(Messages.DONE);
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}
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}
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foreach (var pa in errorActions)
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{
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sb.Append(pa);
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sb.AppendLine(Messages.ERROR);
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}
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foreach (var pa in inProgressActions)
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{
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if (pa.Visible)
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{
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sb.Append(pa);
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sb.AppendLine();
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}
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}
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textBoxLog.Text = sb.ToString();
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textBoxLog.SelectionStart = textBoxLog.Text.Length;
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textBoxLog.ScrollToCaret();
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}
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private void WorkerDoWork(object sender, DoWorkEventArgs doWorkEventArgs)
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{
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var bgw = sender as UpdateProgressBackgroundWorker;
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foreach (PlanAction action in bgw.AllActions)
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{
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try
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{
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if (bgw.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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InitializePlanAction(bgw, action);
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bgw.ReportProgress(0, action);
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action.Run();
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Thread.Sleep(1000);
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bgw.doneActions.Add(action);
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bgw.ReportProgress((int)((1.0 / (double)bgw.AllActions.Count) * 100), action);
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}
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catch (Exception e)
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{
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bgw.FailedWithExceptionAction = action;
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errorActions.Add(action);
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inProgressActions.Remove(action);
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log.Error("Failed to carry out plan.", e);
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log.Debug(action.Title);
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doWorkEventArgs.Result = new Exception(action.Title, e);
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//this pool failed, we will stop here, but try to remove update files at least
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try
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{
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var positionOfFailedAction = bgw.AllActions.IndexOf(action);
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if (positionOfFailedAction < bgw.AllActions.Count && !(action is DownloadPatchPlanAction || action is UploadPatchToMasterPlanAction))
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{
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int pos = positionOfFailedAction;
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if (!(bgw.AllActions[pos] is RemoveUpdateFileFromMasterPlanAction)) //can't do anything if the remove action has failed
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{
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while (++pos < bgw.AllActions.Count)
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{
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if (bgw.AllActions[pos] is RemoveUpdateFileFromMasterPlanAction) //find the next remove
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{
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bgw.AllActions[pos].Run();
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break;
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}
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}
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}
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}
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}
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catch
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{
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//already in an error case - best effort
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}
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bgw.ReportProgress(0);
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break;
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}
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}
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}
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private static void InitializePlanAction(UpdateProgressBackgroundWorker bgw, PlanAction action)
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{
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if (action is IAvoidRestartHostsAware)
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{
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var avoidRestartAction = action as IAvoidRestartHostsAware;
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avoidRestartAction.AvoidRestartHosts = bgw.AvoidRestartHosts;
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}
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}
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private void WorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
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{
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var bgw = (UpdateProgressBackgroundWorker)sender;
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Program.Invoke(Program.MainWindow, () =>
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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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//not showing exceptions in the meantime
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}
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//if all finished
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if (backgroundWorkers.All(w => !w.IsBusy))
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{
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AllWorkersFinished();
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ShowErrors();
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_thisPageIsCompleted = true;
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_cancelEnabled = false;
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_nextEnabled = true;
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}
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}
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});
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OnPageUpdated();
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}
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private void UpdateDelayedAfterPatchGuidanceActionListForHost(List<PlanAction> delayedGuidances, Host host, XenServerPatch patch)
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{
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List<PlanAction> actions = GetAfterApplyGuidanceActionsForPatch(host, patch);
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//if this is a restart, clean delayed list
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if (patch.after_apply_guidance == after_apply_guidance.restartHost)
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delayedGuidances.Clear();
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if (!patch.GuidanceMandatory)
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{
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//not mandatory, so these actions will have to be run later
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//add the ones that are not yet there
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foreach (var ap in actions)
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if (!delayedGuidances.Any(da => da.GetType() == ap.GetType()))
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{
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//special rules
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//do not add restartXAPI if there is already a restartHost on the list
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if (delayedGuidances.Any(da => da is RebootHostPlanAction) && ap is RestartAgentPlanAction)
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continue;
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delayedGuidances.Add(ap);
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}
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}
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else
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{
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//remove delayed action of the same kind for this host (because it is mandatory and will run immediately)
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delayedGuidances.RemoveAll(dg => actions.Any(ma => ma.GetType() == dg.GetType()));
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}
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}
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private static List<PlanAction> GetAfterApplyGuidanceActionsForPatch(Host host, XenServerPatch patch)
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{
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List<PlanAction> actions = new List<PlanAction>();
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List<XenRef<VM>> runningVMs = RunningVMs(host);
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if (patch.after_apply_guidance == after_apply_guidance.restartHost)
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{
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actions.Add(new EvacuateHostPlanAction(host));
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actions.Add(new RebootHostPlanAction(host));
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actions.Add(new BringBabiesBackAction(runningVMs, host, false));
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}
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if (patch.after_apply_guidance == 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 == after_apply_guidance.restartHVM)
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{
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actions.Add(new RebootVMsPlanAction(host, RunningHvmVMs(host)));
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}
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if (patch.after_apply_guidance == after_apply_guidance.restartPV)
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{
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actions.Add(new RebootVMsPlanAction(host, RunningPvVMs(host)));
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}
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return actions;
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}
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private List<PlanAction> GetMandatoryActionListForPatch(List<PlanAction> delayedGuidances, Host host, XenServerPatch patch)
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{
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var actions = new List<PlanAction>();
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if (!patch.GuidanceMandatory)
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return actions;
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actions = GetAfterApplyGuidanceActionsForPatch(host, patch);
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return actions;
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}
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private static List<XenRef<VM>> RunningHvmVMs(Host host)
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{
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List<XenRef<VM>> vms = new List<XenRef<VM>>();
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foreach (VM vm in host.Connection.ResolveAll(host.resident_VMs))
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{
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if (!vm.IsHVM || !vm.is_a_real_vm)
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continue;
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vms.Add(new XenRef<VM>(vm.opaque_ref));
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}
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return vms;
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}
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private static List<XenRef<VM>> RunningPvVMs(Host host)
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{
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List<XenRef<VM>> vms = new List<XenRef<VM>>();
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foreach (VM vm in host.Connection.ResolveAll(host.resident_VMs))
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{
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if (vm.IsHVM || !vm.is_a_real_vm)
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continue;
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vms.Add(new XenRef<VM>(vm.opaque_ref));
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}
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return vms;
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}
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private static List<XenRef<VM>> RunningVMs(Host host)
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{
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List<XenRef<VM>> vms = new List<XenRef<VM>>();
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foreach (VM vm in host.Connection.ResolveAll(host.resident_VMs))
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{
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if (!vm.is_a_real_vm)
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continue;
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vms.Add(new XenRef<VM>(vm.opaque_ref));
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}
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return vms;
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}
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#endregion
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private void ShowErrors()
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{
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if (ErrorMessages != null)
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{
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labelTitle.Text = Messages.PATCHINGWIZARD_AUTOUPDATINGPAGE_FAILED;
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labelError.Text = Messages.PATCHINGWIZARD_AUTOUPDATINGPAGE_ERROR;
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textBoxLog.Text += ErrorMessages;
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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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panel1.Visible = true;
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}
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}
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private string ErrorMessages
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{
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get
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{
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if (errorActions.Count == 0)
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return null;
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var sb = new StringBuilder();
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sb.AppendLine();
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sb.AppendLine(errorActions.Count > 1 ? Messages.PATCHINGWIZARD_AUTOUPDATINGPAGE_ERRORS_OCCURRED : Messages.PATCHINGWIZARD_AUTOUPDATINGPAGE_ERROR_OCCURRED);
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foreach (var action in errorActions)
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{
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var exception = action.Error;
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if (exception == null)
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{
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log.ErrorFormat("An action has failed with an empty exception. Action: {0}", action.ToString());
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continue;
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}
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log.Error(exception);
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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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log.Error(innerEx);
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sb.AppendLine(innerEx.Message);
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}
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else
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{
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sb.AppendLine(exception.Message);
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}
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}
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return sb.ToString();
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}
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}
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private void AllWorkersFinished()
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{
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labelTitle.Text = Messages.PATCHINGWIZARD_UPDATES_DONE_AUTOMATED_UPDATES_MODE;
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progressBar.Value = 100;
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pictureBox1.Image = null;
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labelError.Text = Messages.CLOSE_WIZARD_CLICK_FINISH;
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}
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}
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}
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