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Amazon EC2 Instance Reboot Scheduled Event Status

Amazon.AmazonWebServices.UnitMonitor.InstanceRebootScheduledEventState (UnitMonitor)

It is a monitor for EC2 Instance Reboot Scheduled Event Status

Knowledge Base article:

Summary

Monitor is in Warning state when an instance-reboot event is scheduled or occurs.

Instance reboot commonly occurs if the instance must be rebooted, rather than the underlying host. Rebooting events include a scheduled start and end time.

Causes

This monitor depends on EC2 Instance status check.

Resolutions

Investigate reason why EC2 Instance failed to pass status check in Amazon Console

Element properties:

TargetAmazon.AmazonWebServices.AmazonInstanceHealth
Parent MonitorAmazon.AmazonWebServices.Aggregate.AmazonInstanceHealthScheduledEventsAggregate
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityMatchMonitorHealth
Alert PriorityNormal
Alert Auto ResolveFalse
Monitor TypeAmazon.AmazonWebServices.MonitorType.AmazonInstanceScheduledEventWarningStateType
RemotableTrue
AccessibilityPublic
Alert Message
Amazon EC2 Instance Reboot Scheduled Event Status Alert
The EC2 Instance '{0}' is scheduled for reboot between {2} and {3}. Event description: {1}
RunAsDefault

Source Code:

<UnitMonitor ID="Amazon.AmazonWebServices.UnitMonitor.InstanceRebootScheduledEventState" Target="Amazon.AmazonWebServices.AmazonInstanceHealth" ParentMonitorID="Amazon.AmazonWebServices.Aggregate.AmazonInstanceHealthScheduledEventsAggregate" TypeID="Amazon.AmazonWebServices.MonitorType.AmazonInstanceScheduledEventWarningStateType" Remotable="true" Priority="Normal" ConfirmDelivery="false" Accessibility="Public" Enabled="true">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Amazon.AmazonWebServices.UnitMonitor.InstanceRebootScheduledEventState.AlertMessage">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>false</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Target/Property[Type="System!System.Entity"]/DisplayName$</AlertParameter1>

      <AlertParameter2>$Data/Context/Property[@Name="Description"]$</AlertParameter2>

      <AlertParameter3>$Data/Context/Property[@Name="NotBefore"]$</AlertParameter3>

      <AlertParameter4>$Data/Context/Property[@Name='NotAfter']$</AlertParameter4>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="Healthy" MonitorTypeStateID="Healthy" HealthState="Success"/>

    <OperationalState ID="Warning" MonitorTypeStateID="Warning" HealthState="Warning"/>

  </OperationalStates>

  <Configuration>

    <WorkFlowName>InstanceRebootScheduledEventState</WorkFlowName>

    <StartTimeInSeconds>270</StartTimeInSeconds>

    <IntervalTimeInSeconds>900</IntervalTimeInSeconds>

    <InstanceId>$Target/Property[Type='Amazon.AmazonWebServices.AmazonInstanceHealth']/InstanceId$</InstanceId>

    <RegionName>$Target/Property[Type='Amazon.AmazonWebServices.Component']/RegionName$</RegionName>

    <Expression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Property[@Name='InstanceId']</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">$Target/Property[Type='Amazon.AmazonWebServices.AmazonInstanceHealth']/InstanceId$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Property[@Name='EventType']</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">instance-reboot</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </Expression>

  </Configuration>

</UnitMonitor>