xenadmin/XenAdmin/Diagnostics/Checks/SafeToUpgradeCheck.cs

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/* Copyright (c) Cloud Software Group, Inc.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using XenAdmin.Core;
using XenAdmin.Diagnostics.Hotfixing;
using XenAdmin.Diagnostics.Problems;
using XenAdmin.Diagnostics.Problems.HostProblem;
using XenAPI;
namespace XenAdmin.Diagnostics.Checks
{
class SafeToUpgradeCheck : HostPostLivenessCheck
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private readonly Dictionary<string, string> _installMethodConfig;
public SafeToUpgradeCheck(Host host, Dictionary<string, string> installMethodConfig)
: base(host)
{
_installMethodConfig = installMethodConfig;
}
public override bool CanRun() => !Helpers.CloudOrGreater(Host);
protected override Problem RunHostCheck()
{
var hotfix = HotfixFactory.Hotfix(Host);
if (hotfix != null && hotfix.ShouldBeAppliedTo(Host))
return new HostDoesNotHaveHotfixWarning(this, Host);
try
{
var result = Host.call_plugin(Host.Connection.Session, Host.opaque_ref, "prepare_host_upgrade.py", "testSafe2Upgrade", _installMethodConfig);
if (result.ToLowerInvariant() == "true")
return null;
Host.TryGetUpgradeVersion(Host, _installMethodConfig, out var upgradePlatformVersion, out _);
// block the upgrade to a post-8.2.X version
if (Helpers.CloudOrGreater(upgradePlatformVersion))
{
switch (result.ToLowerInvariant())
{
case "not_enough_space":
return new HostNotSafeToUpgradeProblem(this, Host, HostNotSafeToUpgradeReason.NotEnoughSpace);
case "vdi_present":
return new HostNotSafeToUpgradeProblem(this, Host, HostNotSafeToUpgradeReason.VdiPresent);
case "utility_part_present":
return new HostNotSafeToUpgradeProblem(this, Host, HostNotSafeToUpgradeReason.UtilityPartitionPresent);
case "legacy_partition_table":
return new HostNotSafeToUpgradeProblem(this, Host, HostNotSafeToUpgradeReason.LegacyPartitionTable);
default:
return new HostNotSafeToUpgradeProblem(this, Host, HostNotSafeToUpgradeReason.Default);
}
}
// add a warning for older or unknown upgrade version
switch (result.ToLowerInvariant())
{
case "not_enough_space":
return new HostNotSafeToUpgradeWarning(this, Host, HostNotSafeToUpgradeReason.NotEnoughSpace);
case "vdi_present":
return new HostNotSafeToUpgradeWarning(this, Host, HostNotSafeToUpgradeReason.VdiPresent);
case "utility_part_present":
return new HostNotSafeToUpgradeWarning(this, Host, HostNotSafeToUpgradeReason.UtilityPartitionPresent);
case "legacy_partition_table":
return new HostNotSafeToUpgradeWarning(this, Host, HostNotSafeToUpgradeReason.LegacyPartitionTable);
default:
return new HostNotSafeToUpgradeWarning(this, Host, HostNotSafeToUpgradeReason.Default);
}
}
catch (Exception exception)
{
//note: handle the case when we get UNKNOWN_XENAPI_PLUGIN_FUNCTION - testSafe2Upgrade
log.Warn($"Plugin call prepare_host_upgrade.testSafe2Upgrade on {Host.Name()} threw an exception.", exception);
}
return null;
}
public override string Description => Messages.CHECKING_SAFE_TO_UPGRADE_DESCRIPTION;
}
}