get alert rule status from cli

Question

get alert rule status from cli

LaVar Blalock 95

Is there a way to grab the Status from the Azure Monitor CLI?

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Answer 1

AirGordon 1,385 Microsoft Employee

There will always be some pieces of data that aren't exposed through a CLI. For these, it's good to be aware of az rest in the main cli. It'll facilitate API calls (like from your screenshot) and automatically take care of the authentication headers for you (after you az login).

However, for your specific question i think the az montior metrics alert show cli command will work.

LaVar Blalock 95 Reputation points

2023-05-13T15:28:04.1366667+00:00
Thanks for the reply. So i started looking into that and i found:

https://learn.microsoft.com/en-us/azure/azure-monitor/essentials/metrics-supported#microsoftcomputevirtualmachines

So i created a custom metric that gets the %free space it grabs it from the Logical disk space

I see i have two options Kusto Queries or Az Monitor Log-Analytics Query. I am not understanding how i would use Either in the CLI to query the results of this metric.

az monitor metrics list --resource /subscriptions/"MySubID"/resourceGroups/"VMResourceGroup"/providers/Microsoft.Compute/virtualMachines/"TargetedVM" --metric "Percentage CPU" --interval "PT1M"

So i think this is correct to view metric Percentage CPU how would i go about also grabbing the free space percentage status. Is it possible ? What would be the best cli option?
LaVar Blalock 95 Reputation points

2023-05-13T16:39:05.0566667+00:00

These are Guest operating system metrics can Az Monitor work with those?
AirGordon 1,385 Reputation points Microsoft Employee

2023-05-14T07:59:16.6033333+00:00
Think of it as two places to get the data from.

The Azure control plane contains the data to alert on. The threshold, the conditions.

Your actual data from the Azure services you have created. The CPU % at a point in time or the Disk queue at a point in time (Metric Values).

For your CPU specific scenario, use the az vm monitor tail command which is specifically there to provide metric values.

Generally speaking if you're wanting to query the metric values generated from an Azure service, then you'll be querying the data stored in a Log Analytics workspace. To do this from the AZ CLI, you'd use az monitor log-analytics query to execute the query.
The format of the query parameter would be KQL (Kusto Query Language) eg. `

AzureMetrics | where MetricName contains "cpu" | where Resource == 'AKS-KUBEGENERALUK' | project TimeGenerated, Total | take 10
LaVar Blalock 95 Reputation points

2023-05-14T20:06:55.3366667+00:00
@AirGordon Thanks. Your explanation actually helped a lot. I think I will Use the Log Analytics Workspace.

I will use this script I wrote to get the information I need. Thanks again that helped out a lot. One last question. This is the query i am using for the Log Workspace. When i Run this i expect to see a return value from both my linux and windows machine. I am currently only seeing my linux system. Is there something wrong with the code that you can see? Or do i need to vierify that something else is enabled on the vm itself?

let HealthyPercent = 99; InsightsMetrics | where Origin == "vm.azm.ms" and Namespace == "LogicalDisk" and Name == "FreeSpacePercentage" | extend Disk=tostring(todynamic(Tags)["vm.azm.ms/mountId"]) | where Disk !in ("D:","/boot/efi") | summarize Disk_Free_Space = avg(Val) by Computer, Disk, _ResourceId | project Computer, Disk, Disk_Free_Space, Status = iff(Disk_Free_Space < HealthyPercent,"Unhealthy","Healthy")
LaVar Blalock 95 Reputation points

2023-05-14T22:23:46.3233333+00:00

Ok i think i found the issue. Agent Monitoring Agent looks like it isn't installed on the windows vm and but it is on the linux. I need to figure out how to get that installed and working on the win machine

get alert rule status from cli

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