mirror of
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474 lines
19 KiB
C#
474 lines
19 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.Linq;
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using System.Text;
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using System.Windows.Forms;
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using XenAdmin.Actions;
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using XenAdmin.Controls;
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using XenAdmin.Core;
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using XenAdmin.Wizards.GenericPages;
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using XenAPI;
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using XenAdmin.Actions.DR;
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namespace XenAdmin.Wizards.DRWizards
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{
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public enum DRWizardType { Failover, Failback, Dryrun, Unknown }
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public partial class DRFailoverWizard : XenWizardBase
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{
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private readonly RBACWarningPage RBACWarningPage;
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private readonly DRFailoverWizardFirstPage DRFailoverWizardFirstPage;
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private readonly DRFailoverWizardStoragePage DRFailoverWizardStoragePage1;
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private readonly DRFailoverWizardPrecheckPage DRFailoverWizardPrecheckPage1;
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private readonly DRFailoverWizardRecoverPage DRFailoverWizardRecoverPage1;
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private readonly DRFailoverWizardAppliancesPage DRFailoverWizardAppliancesPage1;
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private readonly DRFailoverWizardWelcomePage DRFailoverWizardWelcomePage;
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private readonly DRFailoverWizardReportPage DRFailoverWizardReportPage1;
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private readonly Pool Pool;
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private DRWizardType WizardType;
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private SummaryReport SummaryReport = new SummaryReport();
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public DRFailoverWizard(Pool pool)
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: this(pool, DRWizardType.Unknown)
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{ }
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public DRFailoverWizard(Pool pool, DRWizardType wizardType)
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: base(pool.Connection)
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{
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InitializeComponent();
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RBACWarningPage = new RBACWarningPage();
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DRFailoverWizardFirstPage = new DRFailoverWizardFirstPage();
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DRFailoverWizardStoragePage1 = new DRFailoverWizardStoragePage();
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DRFailoverWizardPrecheckPage1 = new DRFailoverWizardPrecheckPage();
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DRFailoverWizardRecoverPage1 = new DRFailoverWizardRecoverPage();
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DRFailoverWizardAppliancesPage1 = new DRFailoverWizardAppliancesPage();
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DRFailoverWizardWelcomePage = new DRFailoverWizardWelcomePage();
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DRFailoverWizardReportPage1 = new DRFailoverWizardReportPage();
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Pool = pool;
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WizardType = wizardType;
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#region RBAC Warning Page Checks
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if (Pool.Connection.Session.IsLocalSuperuser || Helpers.GetMaster(Pool.Connection).external_auth_type == Auth.AUTH_TYPE_NONE)
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{
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}
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else
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{
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RBACWarningPage.WizardPermissionCheck check = new RBACWarningPage.WizardPermissionCheck(Messages.RBAC_DR_WIZARD_MESSAGE);
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check.AddApiCheck("DR_task.async_create");
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check.Blocking = true;
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RBACWarningPage.AddPermissionChecks(xenConnection, check);
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AddPage(RBACWarningPage, 0);
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}
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#endregion
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DRFailoverWizardReportPage1.SummaryRetreiver = GetSummaryReport;
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DRFailoverWizardWelcomePage.WizardTypeChanged += DRFailoverWizardWelcomePage_WizardTypeChanged;
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DRFailoverWizardWelcomePage.SetWizardType(wizardType);
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DRFailoverWizardRecoverPage1.ReportStarted += DRFailoverWizardRecoverPage1_ReportStarted;
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DRFailoverWizardRecoverPage1.ReportLineGot += DRFailoverWizardRecoverPage1_ReportLineGot;
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DRFailoverWizardRecoverPage1.ReportActionResultGot += DRFailoverWizardRecoverPage1_ReportActionResultGot;
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DRFailoverWizardAppliancesPage1.Pool = pool;
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DRFailoverWizardPrecheckPage1.Pool = pool;
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DRFailoverWizardStoragePage1.NewDrTaskIntroduced += NewDrTaskIntroduced;
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DRFailoverWizardPrecheckPage1.NewDrTaskIntroduced += NewDrTaskIntroduced;
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DRFailoverWizardPrecheckPage1.SrIntroduced += DRFailoverWizardPrecheckPage1_SrIntroduced;
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AddPages(DRFailoverWizardWelcomePage, DRFailoverWizardFirstPage, DRFailoverWizardStoragePage1, DRFailoverWizardAppliancesPage1,
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DRFailoverWizardPrecheckPage1, DRFailoverWizardRecoverPage1, DRFailoverWizardReportPage1);
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}
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protected override string WizardPaneHelpID()
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{
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if (CurrentStepTabPage is RBACWarningPage)
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{
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string helpId;
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switch (WizardType)
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{
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case DRWizardType.Failover:
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helpId = "Failover_Rbac";
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break;
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case DRWizardType.Failback:
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helpId = "Failback_Rbac";
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break;
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case DRWizardType.Dryrun:
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helpId = "Dryrun_Rbac";
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break;
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default:
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helpId = "Rbac";
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break;
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}
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return FormatHelpId(helpId);
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}
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return base.WizardPaneHelpID();
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}
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protected override void UpdateWizardContent(XenTabPage senderPage)
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{
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var prevPageType = senderPage.GetType();
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if (prevPageType == typeof(DRFailoverWizardStoragePage))
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DRFailoverWizardAppliancesPage1.AllPoolMetadata = DRFailoverWizardStoragePage1.AllPoolMetadata;
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else if (prevPageType == typeof(DRFailoverWizardAppliancesPage))
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{
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DRFailoverWizardRecoverPage1.StartActionAfterRecovery = DRFailoverWizardAppliancesPage1.StartActionAfterRecovery;
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DRFailoverWizardPrecheckPage1.SelectedPoolMetadata = DRFailoverWizardAppliancesPage1.SelectedPoolMetadata;
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DRFailoverWizardRecoverPage1.SelectedPoolMetadata = DRFailoverWizardAppliancesPage1.SelectedPoolMetadata;
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}
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else if (prevPageType == typeof(DRFailoverWizardRecoverPage))
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DoFinalCleanup();
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}
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private List<DR_task> DrTasks = new List<DR_task>();
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private List<XenRef<SR>> IntroducedSrs = new List<XenRef<SR>>();
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private void NewDrTask(string opaqueRef)
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{
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DR_task drTask = DR_task.get_record(Pool.Connection.Session, opaqueRef);
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drTask.opaque_ref = opaqueRef;
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DrTasks.Add(drTask);
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IntroducedSrs.AddRange(drTask.introduced_SRs);
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}
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private bool cleanupExecuted = false;
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private void DoFinalCleanup()
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{
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if (cleanupExecuted)
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return;
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SummaryReport.AddLine("");
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// destroy DR tasks
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DestroyDrTasks();
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// dry-run clean-up
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if (WizardType == DRWizardType.Dryrun)
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{
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DoDryRunCleanup();
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}
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// revert pre-check resolved problems
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if (DRFailoverWizardPrecheckPage1.RevertActions.Count > 0)
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{
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SummaryReport.AddLine(Messages.REVERT_PRECHECK_ACTIONS);
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MultipleAction action = new MultipleAction(xenConnection, Messages.REVERT_PRECHECK_ACTIONS, "", "", DRFailoverWizardPrecheckPage1.RevertActions);
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new Dialogs.ActionProgressDialog(action, ProgressBarStyle.Blocks).ShowDialog();
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foreach (var subAction in DRFailoverWizardPrecheckPage1.RevertActions)
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SummaryReport.AddActionResult(subAction);
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}
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cleanupExecuted = true;
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}
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private void DestroyDrTasks()
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{
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// destroy DR tasks
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if (DrTasks.Count > 0)
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SummaryReport.AddLine(Messages.DR_WIZARD_REPORT_DR_CLEANUP);
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foreach (var drTask in DrTasks.ToList())
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{
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List<SR> srs = Pool.Connection.ResolveAll(drTask.introduced_SRs);
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string srNames = string.Join(", ", (from sr in srs select sr.Name).ToArray());
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DR_task task = drTask;
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var action = new DelegatedAsyncAction(xenConnection,
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string.Format(Messages.ACTION_DR_TASK_DESTROY_TITLE, srNames) , Messages.ACTION_DR_TASK_DESTROY_STATUS, Messages.ACTION_DR_TASK_DESTROY_DONE,
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s => DR_task.destroy(s, task.opaque_ref)) { Pool = this.Pool };
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new Dialogs.ActionProgressDialog(action, ProgressBarStyle.Blocks).ShowDialog();
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if (action.Succeeded)
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DrTasks.Remove(drTask);
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SummaryReport.AddActionResult(action);
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}
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}
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private void DoDryRunCleanup()
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{
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SummaryReport.AddLine(Messages.DR_WIZARD_REPORT_DRYRUN_CLEANUP);
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List<VM> recoveredVms = Pool.Connection.Cache.VMs.Where(vm => DRFailoverWizardRecoverPage1.RecoveredVmsUuids.Contains(vm.uuid)).ToList();
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List<VM_appliance> recoveredAppliances = Pool.Connection.Cache.VM_appliances.Where(appliance => DRFailoverWizardRecoverPage1.RecoveredVmAppliancesUuids.Contains(appliance.uuid)).ToList();
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// call hard_shutdown on the recovered VMs and delete the recovered VMs
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if (recoveredVms.Count > 0)
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ShutdownAndDestroyVMs(recoveredVms);
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// call hard_shutdown on the recovered appliances and delete the recovered appliances
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if (recoveredAppliances.Count > 0)
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ShutdownAndDestroyAppliances(recoveredAppliances);
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// detach and forget SRs
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DetachAndForgetSRs();
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}
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private void ShutdownAndDestroyVMs(List<VM> recoveredVMs)
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{
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var action = new ShutdownAndDestroyVMsAction(Pool.Connection, recoveredVMs);
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new Dialogs.ActionProgressDialog(action, ProgressBarStyle.Blocks).ShowDialog();
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SummaryReport.AddActionResult(action);
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}
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private void ShutdownAndDestroyAppliances(List<VM_appliance> recoveredAppliances)
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{
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var action = new ShutdownAndDestroyVmAppliancesAction(Pool.Connection, recoveredAppliances);
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new Dialogs.ActionProgressDialog(action, ProgressBarStyle.Blocks).ShowDialog();
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SummaryReport.AddActionResult(action);
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}
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private void DetachAndForgetSRs()
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{
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if (IntroducedSrs.Count == 0)
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return;
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List<SR> srs = Pool.Connection.ResolveAll(IntroducedSrs);
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List<AsyncAction> actions = new List<AsyncAction>();
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foreach (SR sr in srs)
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{
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actions.Add(new SrAction(SrActionKind.Forget, sr));
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}
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if (actions.Count == 0)
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return;
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var action = new MultipleAction(Pool.Connection, Messages.ACTION_SRS_FORGETTING, Messages.FORGETTING_SRS, Messages.SRS_FORGOTTEN, actions);
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new Dialogs.ActionProgressDialog(action, ProgressBarStyle.Blocks).ShowDialog();
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foreach (var subAction in actions)
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{
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SummaryReport.AddActionResult(subAction);
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}
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}
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private void StartSummaryReport()
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{
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// wizard type
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SummaryReport.AddLine(Text);
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// selected SRs
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SummaryReport.AddLine(Messages.DR_WIZARD_REPORT_SELECTED_SRS);
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foreach (var srName in DRFailoverWizardStoragePage1.GetSelectedSRsNames())
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{
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SummaryReport.AddLine(srName, 1);
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}
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// selected VMs and appliances
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SummaryReport.AddLine(Messages.DR_WIZARD_REPORT_SELECTED_METADATA);
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foreach (var poolMetadata in DRFailoverWizardAppliancesPage1.SelectedPoolMetadata.Values)
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{
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SummaryReport.AddLine(poolMetadata.Pool.Name, 1);
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foreach (var vmAppliance in poolMetadata.VmAppliances.Values)
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{
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SummaryReport.AddLine(vmAppliance.Name, 2);
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foreach (XenRef<VM> vmRef in vmAppliance.VMs)
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{
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if (poolMetadata.Vms.ContainsKey(vmRef))
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{
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SummaryReport.AddLine(poolMetadata.Vms[vmRef].Name, 3);
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}
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}
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}
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foreach (var vm in poolMetadata.Vms.Values)
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{
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if (vm.appliance.opaque_ref != null && vm.appliance.opaque_ref.StartsWith("OpaqueRef:") &&
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vm.appliance.opaque_ref != "OpaqueRef:NULL")
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continue;
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SummaryReport.AddLine(vm.Name, 2);
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}
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}
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// power state after recovery
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SummaryReport.AddLine(String.Format(Messages.DR_WIZARD_REPORT_SELECTED_POWER_STATE, DRFailoverWizardAppliancesPage1.GetSelectedPowerStateDescription()));
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// introduced SRs
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if (IntroducedSrs.Count > 0)
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{
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List<SR> srs = Pool.Connection.ResolveAll(IntroducedSrs);
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string srNames = string.Join(", ", (from sr in srs select sr.Name).ToArray());
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SummaryReport.AddLine(string.Format(Messages.DR_WIZARD_REPORT_INTRODUCED_SRS, srNames));
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}
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else
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{
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SummaryReport.AddLine(Messages.DR_WIZARD_REPORT_INTRODUCED_SRS_NONE);
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}
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// Pre-check warnings
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List<string> warnings = DRFailoverWizardPrecheckPage1.GetWarnings();
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if (warnings.Count > 0)
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{
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SummaryReport.AddLine(Messages.DR_WIZARD_REPORT_PRECHECK_WARNINGS);
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foreach (var warning in warnings)
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SummaryReport.AddLine(warning, 1);
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}
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else
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{
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SummaryReport.AddLine(Messages.DR_WIZARD_REPORT_PRECHECK_WARNINGS_NONE);
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}
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SummaryReport.AddLine("");
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SummaryReport.AddLine(Messages.DR_WIZARD_REPORT_RECOVERY_STARTED, 0, true);
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}
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private string GetSummaryReport()
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{
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return SummaryReport.ToString();
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}
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protected override void OnCancel()
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{
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DoFinalCleanup();
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base.OnCancel();
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}
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#region Page event handlers
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private void DRFailoverWizardWelcomePage_WizardTypeChanged(DRWizardType type)
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{
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WizardType = type;
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switch (type)
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{
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case DRWizardType.Failover:
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Text = string.Format(Messages.DR_WIZARD_FAILOVER_TITLE, xenConnection.Name);
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pictureBoxWizard.Image = Properties.Resources._000_Failover_h32bit_32;
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break;
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case DRWizardType.Failback:
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Text = string.Format(Messages.DR_WIZARD_FAILBACK_TITLE, xenConnection.Name);
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pictureBoxWizard.Image = Properties.Resources._000_Failback_h32bit_32;
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break;
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case DRWizardType.Dryrun:
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Text = string.Format(Messages.DR_WIZARD_DRYRUN_TITLE, xenConnection.Name);
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pictureBoxWizard.Image = Properties.Resources._000_TestFailover_h32bit_32;
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break;
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default:
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pictureBoxWizard.Image = Properties.Resources._000_DisasterRecovery_h32bit_32;
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break;
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}
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DRFailoverWizardReportPage1.WizardType = WizardType;
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DRFailoverWizardStoragePage1.WizardType = WizardType;
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DRFailoverWizardAppliancesPage1.WizardType = WizardType;
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DRFailoverWizardRecoverPage1.WizardType = WizardType;
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DRFailoverWizardFirstPage.WizardType = WizardType;
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DRFailoverWizardPrecheckPage1.WizardType = WizardType;
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}
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private void NewDrTaskIntroduced(string opaqueRef)
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{
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NewDrTask(opaqueRef);
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}
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private void DRFailoverWizardPrecheckPage1_SrIntroduced(XenRef<SR> srRef)
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{
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IntroducedSrs.Add(srRef);
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}
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private void DRFailoverWizardRecoverPage1_ReportStarted()
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{
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StartSummaryReport();
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}
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private void DRFailoverWizardRecoverPage1_ReportActionResultGot(AsyncAction action)
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{
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SummaryReport.AddActionResult(action);
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}
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private void DRFailoverWizardRecoverPage1_ReportLineGot(string text, int indent, bool timeStamp)
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{
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SummaryReport.AddLine(text, indent, timeStamp);
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}
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#endregion
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}
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public class SummaryReport
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{
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private StringBuilder report;
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public SummaryReport()
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{
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report = new StringBuilder();
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}
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public void AddLine(string line, int indent, bool timeStamp)
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{
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const string space = " ";
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const string bullet = "\u2022";
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var indentText = "";
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if (indent > 0)
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{
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// add space
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for (var i = 0; i < indent; i++)
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indentText = String.Format("{0}{1}", space, indentText);
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// add bullet
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indentText = String.Format("{0}{1} ", indentText, bullet);
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}
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report.AppendLine(timeStamp
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? String.Format("{0} - {1}{2}", HelpersGUI.DateTimeToString(DateTime.Now, Messages.DATEFORMAT_DMY_HMS, true), indentText, line)
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: String.Format("{0}{1}", indentText, line));
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}
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public void AddLine(string line, int indent)
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{
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AddLine(line, indent, false);
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}
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public void AddLine(string line)
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{
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AddLine(line, 0, false);
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}
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public void AddActionResult(AsyncAction action)
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{
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AddLine(action.Succeeded
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? String.Format(Messages.DR_WIZARD_REPORT_ACTION_SUCCEEDED, action.Title)
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: String.Format(Messages.DR_WIZARD_REPORT_ACTION_FAILED, action.Title, action.Exception.Message), 1);
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}
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public override string ToString()
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{
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return report.ToString();
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}
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}
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}
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