mirror of
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03b5e9a0c4
Renamed HostPlanActions class to HostPlan to avoid confusion with the HostPlanAction class. Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
571 lines
22 KiB
C#
571 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.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.Wizards.PatchingWizard.PlanActions;
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using XenAPI;
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using System.Linq;
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using XenAdmin.Core;
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using System.Text;
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namespace XenAdmin.Wizards.PatchingWizard
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{
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public enum Status { NotStarted, Started, Cancelled, Completed }
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public abstract partial class AutomatedUpdatesBasePage : XenTabPage
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{
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protected static readonly ILog log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private bool _thisPageIsCompleted = false;
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private bool _someWorkersFailed = false;
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public List<Problem> ProblemsResolvedPreCheck { get; set; }
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public List<Pool> SelectedPools { private get; set; }
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public bool ApplyUpdatesToNewVersion { get; set; }
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public Status Status { get; private set; }
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private List<UpdateProgressBackgroundWorker> backgroundWorkers = new List<UpdateProgressBackgroundWorker>();
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private List<UpdateProgressBackgroundWorker> failedWorkers = new List<UpdateProgressBackgroundWorker>();
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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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public AutomatedUpdatesBasePage()
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{
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InitializeComponent();
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panel1.Visible = false;
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}
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#region XenTabPage overrides
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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 = true;
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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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Status = Status.Cancelled;
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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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protected override void PageLoadedCore(PageLoadedDirection direction)
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{
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if (_thisPageIsCompleted)
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return;
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Status = Status.NotStarted;
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labelTitle.Text = BlurbText();
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if (!StartUpgradeWorkers())
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{
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Status = Status.Completed;
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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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else
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{
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Status = Status.Started;
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}
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}
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#endregion
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#region Virtual members
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protected abstract string BlurbText();
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protected abstract string SuccessMessageOnCompletion(bool multiplePools);
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protected abstract string FailureMessageOnCompletion(bool multiplePools);
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protected abstract string SuccessMessagePerPool();
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protected abstract string FailureMessagePerPool(bool multipleErrors);
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protected virtual void GeneratePlanActions(Pool pool, List<HostPlan> planActions, List<PlanAction> finalActions) { }
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protected virtual bool SkipInitialPlanActions(Host host)
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{
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return false;
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}
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protected virtual void DoAfterInitialPlanActions(UpdateProgressBackgroundWorker bgw, Host host, List<Host> hosts) { }
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#endregion
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#region background workers
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private bool StartUpgradeWorkers()
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{
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bool atLeastOneWorkerStarted = false;
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foreach (var pool in SelectedPools)
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{
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var planActions = new List<HostPlan>();
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var finalActions = new List<PlanAction>();
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GeneratePlanActions(pool, planActions, finalActions);
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if (planActions.Count > 0)
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{
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atLeastOneWorkerStarted = true;
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StartNewWorker(pool.Name(), planActions, finalActions);
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}
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}
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return atLeastOneWorkerStarted;
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}
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private void StartNewWorker(string poolName, List<HostPlan> planActions, List<PlanAction> finalActions)
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{
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var bgw = new UpdateProgressBackgroundWorker(planActions, finalActions) { Name = poolName };
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backgroundWorkers.Add(bgw);
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bgw.DoWork += WorkerDoWork;
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bgw.WorkerReportsProgress = true;
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bgw.ProgressChanged += WorkerProgressChanged;
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bgw.RunWorkerCompleted += WorkerCompleted;
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bgw.WorkerSupportsCancellation = true;
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bgw.RunWorkerAsync();
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}
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private void WorkerProgressChanged(object sender, ProgressChangedEventArgs e)
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{
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var actionsWorker = sender as UpdateProgressBackgroundWorker;
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if (actionsWorker == null)
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return;
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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 (!action.IsComplete)
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{
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if (!actionsWorker.InProgressActions.Contains(action))
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actionsWorker.InProgressActions.Add(action);
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}
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else
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{
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if (!actionsWorker.DoneActions.Contains(action))
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actionsWorker.DoneActions.Add(action);
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actionsWorker.InProgressActions.Remove(action);
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if (action.Error == null)
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{
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// remove the successful action from the cleanup actions (we are running the cleanup actions in case of failures or if the user cancelled the process, but we shouldn't re-run the actions that have already been run)
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actionsWorker.CleanupActions.Remove(action);
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// only increase the progress if the action succeeded
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progressBar.Value += e.ProgressPercentage / backgroundWorkers.Count;
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}
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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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private void UpdateStatusTextBox()
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{
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var allsb = new StringBuilder();
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foreach (var bgw in backgroundWorkers)
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{
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int bgwErrorCount = 0;
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var sb = new StringBuilder();
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var errorSb = new StringBuilder();
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if (!String.IsNullOrEmpty(bgw.Name))
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sb.AppendLine(string.Format("{0}:", bgw.Name));
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foreach (var pa in bgw.DoneActions)
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{
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if (pa.Error != null)
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{
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sb.AppendIndented(pa.ProgressDescription ?? pa.ToString());
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if (pa.Error is CancelledException)
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{
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sb.AppendLine(Messages.CANCELLED_BY_USER);
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continue;
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}
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sb.AppendLine(Messages.ERROR);
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var innerEx = pa.Error.InnerException as Failure;
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if (innerEx != null)
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{
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log.Error(innerEx);
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errorSb.AppendLine(innerEx.Message);
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}
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else
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{
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log.Error(pa.Error);
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errorSb.AppendLine(pa.Error.Message);
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}
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bgwErrorCount++;
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}
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else if (pa.Visible)
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{
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sb.AppendIndented(pa.ProgressDescription ?? pa.ToString());
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sb.AppendLine(Messages.DONE);
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}
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}
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foreach (var pa in bgw.InProgressActions)
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{
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if (pa.Visible)
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{
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sb.AppendIndented(pa.ProgressDescription ?? pa.ToString());
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sb.AppendLine();
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}
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}
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sb.AppendLine();
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if (bgwErrorCount > 0)
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{
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sb.AppendIndented(FailureMessagePerPool(bgwErrorCount > 1)).AppendLine();
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sb.AppendIndented(errorSb);
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}
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else if (!bgw.IsBusy)
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{
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sb.AppendIndented(SuccessMessagePerPool()).AppendLine();
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}
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sb.AppendLine();
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allsb.Append(sb);
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}
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textBoxLog.Text = allsb.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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if (bgw == null)
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return;
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PlanAction action = null;
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try
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{
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foreach (var hp in bgw.HostPlans)
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{
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var host = hp.Host;
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// Step 1: InitialPlanActions (e.g. upgrade the host in the RPU case)
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bgw.ProgressIncrement = bgw.InitialActionsIncrement(hp);
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if (!SkipInitialPlanActions(host))
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{
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var initialActions = hp.InitialPlanActions;
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foreach (var a in initialActions)
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{
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action = a;
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RunPlanAction(bgw, action, ref doWorkEventArgs);
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}
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}
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DoAfterInitialPlanActions(bgw, host, bgw.HostPlans.Select(h => h.Host).ToList());
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// Step 2: UpdatesPlanActions (priority update action)
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bgw.ProgressIncrement = bgw.UpdatesActionsIncrement(hp);
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var planActions = hp.UpdatesPlanActions;
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foreach (var a in planActions)
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{
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action = a;
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RunPlanAction(bgw, action, ref doWorkEventArgs);
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}
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// Step 3: DelayedActions
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bgw.ProgressIncrement = bgw.DelayedActionsIncrement(hp);
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// running delayed actions, but skipping the ones that should be skipped
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var delayedActions = hp.DelayedPlanActions;
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var restartActions = delayedActions.Where(a => a is RestartHostPlanAction).ToList();
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foreach (var a in restartActions)
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{
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action = a;
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RunPlanAction(bgw, action, ref doWorkEventArgs);
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}
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var otherActions = delayedActions.Where(a => !(a is RestartHostPlanAction)).ToList();
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foreach (var a in otherActions)
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{
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action = a;
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// any non-restart-alike delayed action needs to be run if:
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// - this host is pre-Ely and there isn't any delayed restart plan action, or
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// - this host is Ely or above and live patching must have succeeded or there isn't any delayed restart plan action
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if (restartActions.Count <= 0 ||
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(Helpers.ElyOrGreater(host) && host.Connection.TryResolveWithTimeout(new XenRef<Host>(host.opaque_ref)).updates_requiring_reboot.Count <= 0))
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{
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RunPlanAction(bgw, action, ref doWorkEventArgs);
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}
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else
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{
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//skip running it, but still need to report progress, mainly for the progress bar
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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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action.Visible = false;
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bgw.ReportProgress(bgw.ProgressIncrement, action);
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}
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}
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}
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// Step 4: FinalActions (eg. revert pre-checks)
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bgw.ProgressIncrement = bgw.FinalActionsIncrement;
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foreach (var a in bgw.FinalActions)
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{
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action = a;
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RunPlanAction(bgw, action, ref doWorkEventArgs);
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}
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}
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catch (Exception e)
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{
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if (action.Error == null)
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action.Error = new Exception(Messages.ERROR_UNKNOWN);
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if (!bgw.DoneActions.Contains(action))
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bgw.DoneActions.Add(action);
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bgw.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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failedWorkers.Add(bgw);
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bgw.ReportProgress(0);
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}
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}
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private void RunPlanAction(UpdateProgressBackgroundWorker bgw, PlanAction action, ref DoWorkEventArgs e)
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{
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if (bgw.CancellationPending)
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{
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e.Cancel = true;
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return;
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}
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if (bgw.DoneActions.Contains(action) && action.Error == null) // this action was completed successfully, do not run it again
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return;
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// if we retry a failed action, we need to firstly remove it from DoneActions and reset its Error
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bgw.DoneActions.Remove(action);
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action.Error = null;
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action.OnProgressChange += action_OnProgressChange;
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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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action.OnProgressChange -= action_OnProgressChange;
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bgw.ReportProgress(bgw.ProgressIncrement, action);
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}
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private void action_OnProgressChange(object sender, EventArgs e)
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{
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Program.Invoke(Program.MainWindow, UpdateStatusTextBox);
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}
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private void WorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
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{
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if (!e.Cancelled)
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{
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var bgw = sender as UpdateProgressBackgroundWorker;
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if (bgw != null && bgw.DoneActions.Any(a => a.Error != null && !(a.Error is CancelledException)))
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{
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_someWorkersFailed = true;
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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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Status = Status.Completed;
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panel1.Visible = true;
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if (_someWorkersFailed)
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{
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labelError.Text = FailureMessageOnCompletion(backgroundWorkers.Count > 1);
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pictureBox1.Image = Images.StaticImages._000_error_h32bit_16;
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buttonRetry.Visible = true;
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}
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else
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{
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labelError.Text = SuccessMessageOnCompletion(backgroundWorkers.Count > 1);
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pictureBox1.Image = Images.StaticImages._000_Tick_h32bit_16;
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buttonRetry.Visible = false;
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progressBar.Value = 100;
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}
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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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UpdateStatusTextBox();
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OnPageUpdated();
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}
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private void RetryFailedActions()
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{
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_someWorkersFailed = false;
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panel1.Visible = false;
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var workers = new List<UpdateProgressBackgroundWorker>(failedWorkers);
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failedWorkers.Clear();
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foreach (var failedWorker in workers)
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{
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failedWorker.RunWorkerAsync();
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}
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_thisPageIsCompleted = false;
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_cancelEnabled = true;
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_nextEnabled = false;
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OnPageUpdated();
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}
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#endregion
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private void buttonRetry_Click(object sender, EventArgs e)
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{
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RetryFailedActions();
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}
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protected HostPlan GetUpdatePlanActionsForHost(Host host, List<Host> hosts, List<XenServerPatch> minimalPatches, List<XenServerPatch> uploadedPatches, KeyValuePair<XenServerPatch, string> patchFromDisk)
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{
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var patchSequence = Updates.GetPatchSequenceForHost(host, minimalPatches);
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if (patchSequence == null)
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return new HostPlan(host, null, null, null);
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var planActionsPerHost = new List<PlanAction>();
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var delayedActionsPerHost = new List<PlanAction>();
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foreach (var patch in patchSequence)
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{
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if (!uploadedPatches.Contains(patch))
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{
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planActionsPerHost.Add(new DownloadPatchPlanAction(host.Connection, patch, AllDownloadedPatches, patchFromDisk));
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planActionsPerHost.Add(new UploadPatchToMasterPlanAction(host.Connection, patch, patchMappings, AllDownloadedPatches, patchFromDisk));
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uploadedPatches.Add(patch);
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}
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planActionsPerHost.Add(new PatchPrecheckOnHostPlanAction(host.Connection, patch, host, patchMappings));
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planActionsPerHost.Add(new ApplyXenServerPatchPlanAction(host, patch, patchMappings));
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if (patch.GuidanceMandatory)
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{
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var action = patch.after_apply_guidance == after_apply_guidance.restartXAPI && delayedActionsPerHost.Any(a => a is RestartHostPlanAction)
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? new RestartHostPlanAction(host, host.GetRunningVMs(), true, true)
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: GetAfterApplyGuidanceAction(host, patch.after_apply_guidance);
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if (action != null)
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{
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planActionsPerHost.Add(action);
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// remove all delayed actions of the same kind that has already been added
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// (because this action is guidance-mandatory=true, therefore
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// it will run immediately, making delayed ones obsolete)
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delayedActionsPerHost.RemoveAll(a => action.GetType() == a.GetType());
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}
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}
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else
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{
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var action = GetAfterApplyGuidanceAction(host, patch.after_apply_guidance);
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// add the action if it's not already in the list
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if (action != null && delayedActionsPerHost.All(a => a.GetType() != action.GetType()))
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delayedActionsPerHost.Add(action);
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}
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var isLastHostInPool = hosts.IndexOf(host) == hosts.Count - 1;
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if (isLastHostInPool)
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{
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// add cleanup action for current patch at the end of the update seuence for the last host in the pool
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var master = Helpers.GetMaster(host.Connection);
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planActionsPerHost.Add(new RemoveUpdateFileFromMasterPlanAction(master, patchMappings, patch));
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}
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}
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var lastRestart = delayedActionsPerHost.FindLast(a => a is RestartHostPlanAction)
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?? planActionsPerHost.FindLast(a => a is RestartHostPlanAction);
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if (lastRestart != null)
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((RestartHostPlanAction)lastRestart).EnableOnly = false;
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|
|
return new HostPlan(host, null, planActionsPerHost, delayedActionsPerHost);
|
|
}
|
|
|
|
private static PlanAction GetAfterApplyGuidanceAction(Host host, after_apply_guidance guidance)
|
|
{
|
|
switch (guidance)
|
|
{
|
|
case after_apply_guidance.restartHost:
|
|
return new RestartHostPlanAction(host, host.GetRunningVMs(), true);
|
|
case after_apply_guidance.restartXAPI:
|
|
return new RestartAgentPlanAction(host);
|
|
case after_apply_guidance.restartHVM:
|
|
return new RebootVMsPlanAction(host, host.GetRunningHvmVMs());
|
|
case after_apply_guidance.restartPV:
|
|
return new RebootVMsPlanAction(host, host.GetRunningPvVMs());
|
|
default:
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
}
|