Question 276711 in Azure Question posted in
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Azure – Unable to create Alert for podReadyPercentage metrics

I am trying to create a MetricAlert using the following script

Set-AzContext -Subscription "f0bXXXXXXX"


$action = Get-AzActionGroup -ResourceGroupName gze-actgrp-pd-rgp-001 -Name UWDevOps_PD

$actionID = New-AzActionGroup -ActionGroupId $action.id

#Get-AzMetricDefinition -ResourceId "/subscriptions/9ca9XXXXX/resourcegroups/gze-pdi203-pd1-rgp-001/providers/Microsoft.ContainerService/managedClusters/gze-pdi203-pd1-aks-isostr-001"

#set alert dim to pick the right options


$dim = New-AzMetricAlertRuleV2DimensionSelection -DimensionName "Kubernetes namespace" -ValuesToInclude "dv1"

$severity = 1

$RGObject = "gze-npi203-np1-rgp-001"

$ResourceId = "/subscriptions/9caXXXXXXX/resourcegroups/gze-npi203-np1-rgp-001/providers/Microsoft.ContainerService/managedClusters/gze-npi203-np1-aks-isostr-001"

#set alert criteria and counter % Processor Time

$criteria = New-AzMetricAlertRuleV2Criteria -MetricName "podReadyPercentage" -DimensionSelection $dim
-TimeAggregation average -Operator LessThan
-Threshold 50

Set-AzContext -Subscription "921XXXX" # subID of the GZ-NP-IT-203-AKSISDUWSYS

Add-AzMetricAlertRuleV2 -Name "UWS-AKS203-ISOSTR-DV1-[Sev0-Critical]-Pods-Ready-Percentage less than 50-V2-CT" -ResourceGroupName $RGObject
-WindowSize 01:00:00 -Frequency 01:00:00
-TargetResourceId $ResourceId -Condition $criteria
-ActionGroup $actionID `
-Severity $severity

Error "Couldn’t find a metric named podReadyPercentage."

Add-AzMetricAlertRuleV2 : Exception type: ErrorResponseException, Message: Couldn’t find a metric named podReadyPercentage. Make sure the name is correct. Activity ID:
192c5e83-2b8a-4cd3-861b-da8dd2da8c1f., Code: BadRequest, Status code:BadRequest, Reason phrase: BadRequest
At line:1 char:1

Add-AzMetricAlertRuleV2 -Name "UWS-AKS203-ISOSTR-DV1-[Sev0-Critical]- …

  • CategoryInfo : CloseError: (:) [Add-AzMetricAlertRuleV2], PSInvalidOperationException + FullyQualifiedErrorId : Microsoft.Azure.Commands.Insights.Alerts.AddAzureRmMetricAlertRuleV2Command

=========================
But as per MS doc that is the name listed https://learn.microsoft.com/en-us/azure/azure-monitor/containers/container-insights-custom-metrics?tabs=portal

[![enter image description here][1]][1]

So not sure what else I am missing here. Any help anyone?

tried to google MS docs

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2

Answers


  1. Chosen as BEST ANSWER
    0

    I am unable to create alerts for any of the preview ones.. I am using Az.Monitor ver 3.1.0 and Az ver 10.0.1, if that may help..

    I needed Az.Monitor ver 3.1.0 for New-AzActionGroup cmdlet to work.


  2. 0

    podReadyPercentage metric disabled and no way to create a alert from portal, refer this Ms Doc

    enter image description here

    Alternatively, you can create an alert for the ‘Pod ready percentage‘ using Log Analytics.

    1.Go to your cluster > Logs > and run below KQL Query

    KQL Query

        KubePodInventory
    | summarize TotalPods = count(), ReadyPods = countif(ContainerID != "None" and PodStatus == "Running") by ClusterName
    | extend PodReadyPercentage = toreal(ReadyPods) / toreal(TotalPods) * 100

    Pod Ready Percentage

    enter image description here

    1. Create an alert by clicking New Alert Rule and providing the required details to receive an alert based on the Pod Ready Percentage..

    enter image description here

    1. Create an action group or select an existing one to send an email.

    enter image description here

    You will receive an alert whenever the Pod percentage falls below 50%.

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