Is it possible to send email alerts on Azure container health probes failing?

Hi RSa,

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Hi @Vinodh247 our container app is outputting to the log tables, however I am specifically looking for an example how to query for a health probe entries in the log tables using Bicep (see original question). I can see container app logs there but nothing to do with health probes even though they are setup.

Hi @Vinodh247 our container app is outputting to the log tables, however I am specifically looking for an example how to query for a health probe entries in the log tables using Bicep (see original question). I can see container app logs there but nothing to do with health probes even though they are setup.

Hi @Vinodh247 our container app is outputting to the log tables, however I am specifically looking for an example how to query for a health probe entries in the log tables using Bicep (see original question). I can see container app logs there but nothing to do with health probes even though they are setup.

Make sure you have the necessary diagnostic settings enabled for your container app to capture all relevant logs. This ensures that container logs are fully available in Log Analytics.

// Query to search for potential health probe failure indicators in logs
AppLogs
| where LogEntry contains "HealthCheck" or LogEntry contains "Health Probe" or LogEntry contains "probe failure"
| project TimeGenerated, LogEntry

You can test variations of above query in azure monitor logs to catch entries related to health probes. Probe failures might sometimes show up as generic failures in the application logs, or they may use terms such as "HealthCheck" or "Health Probe" depending on how they're surfaced in your container app.

Post this you can create an alert based on this query using Bicep using the following template.

resource logAlert 'Microsoft.Insights/scheduledQueryRules@2022-04-01' = {
  name: 'ContainerHealthProbeAlert'
  location: resourceGroup().location
  properties: {
    description: 'Alert on container health probe failures'
    enabled: true
    source: {
      dataSourceId: logAnalytics.id
      query: '''
      AppLogs
      | where LogEntry contains "HealthCheck" or LogEntry contains "Health Probe" or LogEntry contains "probe failure"
      | summarize count() by bin(TimeGenerated, 5m)
      '''
    }
    schedule: {
      frequencyInMinutes: 5
      timeWindowInMinutes: 15
    }
    criteria: {
      allOf: [
        {
          query: '''
          AppLogs
          | where LogEntry contains "HealthCheck" or LogEntry contains "Health Probe" or LogEntry contains "probe failure"
          | summarize count() by bin(TimeGenerated, 5m)
          '''
          threshold: 1
          timeAggregation: 'Count'
          operator: 'GreaterThan'
        }
      ]
    }
    actionGroups: [
      {
        actionGroupId: actionGroup.id
      }
    ]
  }
}
resource actionGroup 'Microsoft.Insights/actionGroups@2022-04-01' = {
  name: 'EmailAlertActionGroup'
  location: resourceGroup().location
  properties: {
    enabled: true
    emailReceivers: [
      {
        name: 'adminEmail'
        emailAddress: 'your-email@example.com'
        status: 'Enabled'
      }
    ]
  }
}