mirror of
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327 lines
12 KiB
C#
327 lines
12 KiB
C#
/* Copyright (c) Cloud Software Group, Inc.
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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.IO;
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using System.Linq;
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using XenAdmin.Core;
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using XenAPI;
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using System.Threading;
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using XenAdmin.Actions.VMActions;
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using XenAdmin.Network;
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namespace XenAdmin.Actions
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{
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public class ImportVmAction : AsyncAction
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{
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private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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private const int HTTP_PUT_TIMEOUT = 30*60*1000; //30 minutes
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private string m_filename;
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private readonly Host m_affinity;
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public const string IMPORT_TASK = "import_task";
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private bool m_startAutomatically;
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private List<VIF> m_VIFs;
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private object monitor = new object();
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private bool m_wizardDone;
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private readonly Action<VM, bool> _warningDelegate;
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private readonly Action<VMStartAbstractAction, Failure> _failureDiagnosisDelegate;
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/// <summary>
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/// These calls are always required to import a VM, as opposed to the set which are only called if needed set in the constructor of this action.
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/// </summary>
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public static readonly RbacMethodList ConstantRBACRequirements = new RbacMethodList(
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"vm.set_name_label",
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"network.destroy",
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"vif.create",
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"vif.destroy",
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"http/put_import"
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);
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public ImportVmAction(IXenConnection connection, Host affinity, string filename, SR sr,
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Action<VM, bool> warningDelegate, Action<VMStartAbstractAction, Failure> failureDiagnosisDelegate)
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: base(connection, "")
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{
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Description = Messages.IMPORTVM_PREP;
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Pool = Helpers.GetPoolOfOne(connection);
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m_affinity = affinity;
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Host = affinity ?? connection.Resolve(Pool.master);
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SR = sr;
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VM = null;
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m_filename = filename;
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_warningDelegate = warningDelegate;
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_failureDiagnosisDelegate = failureDiagnosisDelegate;
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#region RBAC Dependencies
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ApiMethodsToRoleCheck.AddRange(ConstantRBACRequirements);
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if (affinity != null)
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ApiMethodsToRoleCheck.Add("vm.set_affinity");
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ApiMethodsToRoleCheck.AddRange(Role.CommonTaskApiList);
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ApiMethodsToRoleCheck.AddRange(Role.CommonSessionApiList);
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#endregion
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Title = string.Format(Messages.IMPORTVM_TITLE, filename, Host.NameWithLocation());
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}
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protected override void Run()
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{
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SafeToExit = false;
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string vmRef = UploadFile(out string importTaskRef);
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if (string.IsNullOrEmpty(vmRef))
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return;
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// Now let's try and set the affinity and start the VM
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while (!Cancelling && (VM = Connection.Resolve(new XenRef<VM>(vmRef))) == null)
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Thread.Sleep(100);
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if (Cancelling)
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throw new CancelledException();
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var vmRec = VM.get_record(Session, vmRef);
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var isTemplate = vmRec.is_a_template;
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if (isTemplate && vmRec.is_default_template && Helpers.FalconOrGreater(Connection))
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{
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if (!vmRec.other_config.ContainsKey(IMPORT_TASK) || vmRec.other_config[IMPORT_TASK] != importTaskRef)
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throw new Exception(string.Format(Messages.IMPORT_TEMPLATE_ALREADY_EXISTS, BrandManager.ProductBrand));
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}
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Description = isTemplate ? Messages.IMPORT_TEMPLATE_UPDATING_TEMPLATE : Messages.IMPORTVM_UPDATING_VM;
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VM.set_name_label(Session, vmRef, DefaultVMName(VM.get_name_label(Session, vmRef)));
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if (!isTemplate && m_affinity != null)
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VM.set_affinity(Session, vmRef, m_affinity.opaque_ref);
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// Wait here for the wizard to finish
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Description = isTemplate ? Messages.IMPORT_TEMPLATE_WAITING_FOR_WIZARD : Messages.IMPORTVM_WAITING_FOR_WIZARD;
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lock (monitor)
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{
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while (!(m_wizardDone || Cancelling))
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Monitor.Wait(monitor);
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}
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if (Cancelling)
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throw new CancelledException();
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if (m_VIFs != null)
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{
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Description = isTemplate ? Messages.IMPORT_TEMPLATE_UPDATING_NETWORKS : Messages.IMPORTVM_UPDATING_NETWORKS;
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// For ElyOrGreater hosts, we can move the VIFs to another network,
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// but for older hosts we need to destroy all vifs and recreate them
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List<XenRef<VIF>> vifs = VM.get_VIFs(Session, vmRef);
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List<XenAPI.Network> networks = new List<XenAPI.Network>();
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foreach (XenRef<VIF> vif in vifs)
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{
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// Save the network as we may have to delete it later
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XenAPI.Network network = Connection.Resolve(VIF.get_network(Session, vif));
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if (network != null)
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networks.Add(network);
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if (Helpers.ElyOrGreater(Connection))
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{
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var vifObj = Connection.Resolve(vif);
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if (vifObj == null)
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continue;
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// try to find a VIF in the m_VIFs list which matches the device field,
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// then move it to the desired network and remove it from the m_VIFs list
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// so we don't create it again later
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var matchingVif = m_VIFs.FirstOrDefault(v => v.device == vifObj.device);
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if (matchingVif != null)
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{
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VIF.move(Session, vif, matchingVif.network);
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m_VIFs.Remove(matchingVif);
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continue;
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}
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}
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// destroy the VIF, if we haven't managed to move it
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VIF.destroy(Session, vif);
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}
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// recreate VIFs if needed (m_VIFs can be empty, if we moved all the VIFs in the previous step)
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foreach (VIF vif in m_VIFs)
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{
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vif.VM = new XenRef<VM>(vmRef);
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VIF.create(Session, vif);
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}
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// now delete any Networks associated with this task if they have no VIFs
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foreach (XenAPI.Network network in networks)
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{
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if (!network.other_config.ContainsKey(IMPORT_TASK) || network.other_config[IMPORT_TASK] != importTaskRef)
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continue;
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try
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{
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var record = XenAPI.Network.get_record(Session, network.opaque_ref);
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if (record.VIFs.Count > 0 || record.PIFs.Count > 0)
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continue;
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XenAPI.Network.destroy(Session, network.opaque_ref);
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}
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catch (Exception e)
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{
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log.Error($"Exception while deleting network {network.Name()}. Squashing.", e);
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}
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}
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}
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var vm = Connection.WaitForCache(new XenRef<VM>(vmRef));
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Description = isTemplate ? Messages.IMPORT_TEMPLATE_IMPORTCOMPLETE : Messages.IMPORTVM_IMPORTCOMPLETE;
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if (vm != null && !vm.is_a_template && m_startAutomatically)
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{
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if (vm.power_state == vm_power_state.Suspended)
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new VMResumeAction(vm, _warningDelegate, _failureDiagnosisDelegate).RunAsync();
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else
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new VMStartAction(vm, _warningDelegate, _failureDiagnosisDelegate).RunAsync();
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}
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}
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private int VMsWithName(string name)
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{
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int i = 0;
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foreach (VM v in Connection.Cache.VMs)
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if (v.name_label == name)
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i++;
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return i;
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}
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private string DefaultVMName(string vmName)
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{
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string name = vmName;
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int i = 0;
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if (VMsWithName(vmName) > 1)
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while (VMsWithName(name) > 0)
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{
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i++;
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name = string.Format(Messages.NEWVM_DEFAULTNAME, vmName, i);
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}
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return name;
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}
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private string UploadFile(out string importTaskRef)
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{
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Host host = SR.GetStorageHost();
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string hostUrl;
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if (host == null)
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{
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Uri uri = new Uri(Session.Url);
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hostUrl = uri.Host;
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log.InfoFormat("SR {0} is shared or disconnected or SR host could not be resolved. Uploading XVA {1} to {2}", SR.Name(), m_filename, hostUrl);
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}
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else
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{
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hostUrl = host.address;
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log.InfoFormat("Resolved host for SR {0}. Uploading XVA {1} to {2}", SR.Name(), m_filename, hostUrl);
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}
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try
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{
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RelatedTask = Task.create(Session, "put_import_task", hostUrl);
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//at the end of polling, the RelatedTask is destroyed; make a note of it for later use
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importTaskRef = RelatedTask.opaque_ref;
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log.DebugFormat("HTTP PUTTING file from {0} to {1}", m_filename, hostUrl);
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HTTP_actions.put_import(percent =>
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{
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Tick(percent, string.Format(Messages.IMPORTVM_UPLOADING, Path.GetFileName(m_filename), Pool.Name(), percent));
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},
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() => XenAdminConfigManager.Provider.ForcedExiting || GetCancelling(),
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HTTP_PUT_TIMEOUT, hostUrl,
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XenAdminConfigManager.Provider.GetProxyFromSettings(Connection),
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m_filename, RelatedTask.opaque_ref, Session.opaque_ref, false, false, SR.opaque_ref);
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PollToCompletion();
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return Result;
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}
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catch (Exception e)
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{
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PollToCompletion();
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if (e is CancelledException || e is HTTP.CancelledException || e.InnerException is CancelledException)
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throw new CancelledException();
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throw;
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}
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}
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public override void RecomputeCanCancel()
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{
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CanCancel = m_wizardDone;
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}
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protected override void CancelRelatedTask()
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{
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log.InfoFormat("VM/Template import from '{0}' cancelled", m_filename);
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lock (monitor)
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{
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Monitor.PulseAll(monitor);
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}
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base.CancelRelatedTask();
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}
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public void EndWizard(bool start, List<VIF> vifs)
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{
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m_startAutomatically = start;
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m_VIFs = vifs;
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lock (monitor)
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{
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m_wizardDone = true;
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Monitor.PulseAll(monitor);
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}
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}
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}
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}
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