Azure Container App CPU Quota Alert

Question

Azure Container App CPU Quota Alert

Anderson, Mick 0

We just ran into the CPU quota (100) issue recently for the container apps environment and was wondering if there was a way to setup an alert to notify when that container app environment is nearing or getting close to that quota? I haven't been able to find anything useful in the docs and none of the metrics seem to have that information either. There is an azure CLI command that will output what the quota is and how much you are using but there is nothing in the portal to show that or any way that i've found to create an alert/notification when you get close

Divyesh Govaerdhanan 6,235 Reputation points

2025-06-08T00:50:09.5766667+00:00
Hello,

Welcome to Microsoft Q&A,

Azure Container Apps can be used directly in Azure Monitor Alerts, and unfortunately, as of now, quota usage is not exposed as a native Azure Monitor metric, so you can't set up an alert using Azure Monitor alone for total quota usage. The metrics are per app, not environment-wide, and do not tell you how close you are to the environment’s quota limit.

You can still simulate alerting using,

Polling + Logic App or Azure Function

Schedule every 5–10 minutes

Call az containerapp env show-usage

Parse JSON and check if CPU or memory usage > threshold (e.g., 85%)

Send email or trigger webhook

Please Upvote and accept the answer if it helps!!
Loknathsatyasaivarma Mahali 2,740 Reputation points Microsoft External Staff Moderator

2025-06-09T04:02:27.7233333+00:00

Anderson, Mick,

Just checking in to see if the above answer provided by Divyesh Govaerdhanan helped. If you have any further updates on this issue, please feel free to drop them here.
Anderson, Mick 0 Reputation points

2025-06-09T12:10:13.96+00:00

It is helpful but it seems like it is a workaround rather than a solution. Is there any plan to implement something since if you hit the limit your container apps stop being able to provision if that limit is reached which seems like it should be a major issue with the platform if you can be notified with a simple alert rule to when you are approaching said limit
Loknathsatyasaivarma Mahali 2,740 Reputation points Microsoft External Staff Moderator

2025-06-10T07:03:16.1366667+00:00
Hello Anderson, Mick,

Thanks for bringing your concerns to us we request you to please follow the below steps to enable the Alerts with CPU Usage and please let us know the update on the issue.

First Open your container app and in the Monitoring select the Alerts and click on create Alert rule, please refer the below Snippet for better understanding.

Then in the Action button use the "Use action group an create a action group and select the created Action group

`To create a action group refer the below screenshot.

According to your requirement choose the notification type and configure accordingly.

For example, from the above screenshot which we have provided if the CPU usage reaches the 90% then you will get the alert notifications.

NOTE: The Alerts will take some time to reflect in the portal after the creation.
Anderson, Mick 0 Reputation points

2025-06-10T12:12:29.55+00:00

@Loknathsatyasaivarma Mahali Does this alert work for all container apps within the container app environment because it seems like it would be only for an individual container app and not the environment? And will it notify when we reach or are about to reach the container app environment CPU quota? That is what I'm looking to alert on. It seems like if there is a quota for a specific resource, you should be able to set an alert when you get close to reaching said quota
Bheemani Anji Babu 430 Reputation points Microsoft External Staff Moderator

2025-06-11T06:28:04.29+00:00
Hi Anderson, Mick

Azure Monitor does not expose environment-level CPU quota usage as a metric, it only provides per-container app metrics, so no way to create a direct environment-level alert in Azure Monitor or Portal.

Possible approach:

Use an Azure Function like Timer Trigger or Automation Runbook to periodically query environment quota via CLI or REST API, parse CPU usage, and trigger an email/Teams/Logic App alert when usage exceeds a threshold, initial manual setup required, then runs automatically.

Example (Python Azure Function Sketch):

from azure.identity import DefaultAzureCredential from azure.mgmt.appcontainers import ContainerAppsAPIClient credential = DefaultAzureCredential() client = ContainerAppsAPIClient(credential, "<subscription-id>") env = client.managed_environments.get("<resource-group>", "<env-name>") cpu_used = env.properties.app_quota.cpu.current_usage cpu_limit = env.properties.app_quota.cpu.limit if (cpu_used / cpu_limit) * 100 >= 80: print("CPU Quota nearing limit!")

One-time manual setup is required (Function App or Automation Runbook) after that the alerts work automatically.

Let me know if you need end-to-end guidance on the possible approaches. I will be glad to help. If this was helpful feel free to upvote it to assist others in the community as well.
Bheemani Anji Babu 430 Reputation points Microsoft External Staff Moderator

2025-06-12T04:05:42.7733333+00:00

Hi Anderson, Mick

Just checking if the provided workaround resolved your issue. If it did, please let us know. If you have any questions or concerns, please respond, and we will take further steps. -Thank you.
Anderson, Mick 0 Reputation points

2025-06-12T12:20:35.65+00:00

That solution will work though it seems like it shouldn't be a thing that needs to be done
Bheemani Anji Babu 430 Reputation points Microsoft External Staff Moderator

2025-06-13T06:30:29.35+00:00

Hi Anderson, Mick

Thank you for your update and I completely understand your concern. you're absolutely right even though using an azure function or automation runbook can technically solve this problem however you feel like that workaround shouldn't have to build just to monitor for environment level quota usage.

Right now, azure monitor doesn't provide this metric for the whole container apps environment it only gives per app level data so there is no direct way to set up an alert for total environment CPU or memory usage in the portal.

Until the Microsoft add support for this the only real option is to run something like a scheduled script like using az containerapp env show-usage command or API to check the usage and send alerts when needed.

-Thank you.

1 answer

Your answer

Divyesh Govaerdhanan 6,235 Reputation points

2025-06-08T00:50:09.5766667+00:00

Hello,

Welcome to Microsoft Q&A,

Azure Container Apps can be used directly in Azure Monitor Alerts, and unfortunately, as of now, quota usage is not exposed as a native Azure Monitor metric, so you can't set up an alert using Azure Monitor alone for total quota usage. The metrics are per app, not environment-wide, and do not tell you how close you are to the environment’s quota limit.

You can still simulate alerting using,

Polling + Logic App or Azure Function

Schedule every 5–10 minutes

Call az containerapp env show-usage

Parse JSON and check if CPU or memory usage > threshold (e.g., 85%)

Send email or trigger webhook

Please Upvote and accept the answer if it helps!!
Loknathsatyasaivarma Mahali 2,740 Reputation points Microsoft External Staff Moderator

2025-06-09T04:02:27.7233333+00:00

Anderson, Mick,

Just checking in to see if the above answer provided by Divyesh Govaerdhanan helped. If you have any further updates on this issue, please feel free to drop them here.
Anderson, Mick 0 Reputation points

2025-06-09T12:10:13.96+00:00

It is helpful but it seems like it is a workaround rather than a solution. Is there any plan to implement something since if you hit the limit your container apps stop being able to provision if that limit is reached which seems like it should be a major issue with the platform if you can be notified with a simple alert rule to when you are approaching said limit
Loknathsatyasaivarma Mahali 2,740 Reputation points Microsoft External Staff Moderator

2025-06-10T07:03:16.1366667+00:00

Hello Anderson, Mick,

Thanks for bringing your concerns to us we request you to please follow the below steps to enable the Alerts with CPU Usage and please let us know the update on the issue.

First Open your container app and in the Monitoring select the Alerts and click on create Alert rule, please refer the below Snippet for better understanding.

Then in the Action button use the "Use action group an create a action group and select the created Action group

`To create a action group refer the below screenshot.

According to your requirement choose the notification type and configure accordingly.

For example, from the above screenshot which we have provided if the CPU usage reaches the 90% then you will get the alert notifications.

NOTE: The Alerts will take some time to reflect in the portal after the creation.
Anderson, Mick 0 Reputation points

2025-06-10T12:12:29.55+00:00

@Loknathsatyasaivarma Mahali Does this alert work for all container apps within the container app environment because it seems like it would be only for an individual container app and not the environment? And will it notify when we reach or are about to reach the container app environment CPU quota? That is what I'm looking to alert on. It seems like if there is a quota for a specific resource, you should be able to set an alert when you get close to reaching said quota
Bheemani Anji Babu 430 Reputation points Microsoft External Staff Moderator

2025-06-11T06:28:04.29+00:00

Hi Anderson, Mick

Azure Monitor does not expose environment-level CPU quota usage as a metric, it only provides per-container app metrics, so no way to create a direct environment-level alert in Azure Monitor or Portal.

Possible approach:

Use an Azure Function like Timer Trigger or Automation Runbook to periodically query environment quota via CLI or REST API, parse CPU usage, and trigger an email/Teams/Logic App alert when usage exceeds a threshold, initial manual setup required, then runs automatically.

Example (Python Azure Function Sketch):

from azure.identity import DefaultAzureCredential from azure.mgmt.appcontainers import ContainerAppsAPIClient credential = DefaultAzureCredential() client = ContainerAppsAPIClient(credential, "<subscription-id>") env = client.managed_environments.get("<resource-group>", "<env-name>") cpu_used = env.properties.app_quota.cpu.current_usage cpu_limit = env.properties.app_quota.cpu.limit if (cpu_used / cpu_limit) * 100 >= 80: print("CPU Quota nearing limit!")

One-time manual setup is required (Function App or Automation Runbook) after that the alerts work automatically.

Let me know if you need end-to-end guidance on the possible approaches. I will be glad to help. If this was helpful feel free to upvote it to assist others in the community as well.
Bheemani Anji Babu 430 Reputation points Microsoft External Staff Moderator

2025-06-12T04:05:42.7733333+00:00

Hi Anderson, Mick

Just checking if the provided workaround resolved your issue. If it did, please let us know. If you have any questions or concerns, please respond, and we will take further steps. -Thank you.
Anderson, Mick 0 Reputation points

2025-06-12T12:20:35.65+00:00

That solution will work though it seems like it shouldn't be a thing that needs to be done
Bheemani Anji Babu 430 Reputation points Microsoft External Staff Moderator

2025-06-13T06:30:29.35+00:00

Hi Anderson, Mick

Thank you for your update and I completely understand your concern. you're absolutely right even though using an azure function or automation runbook can technically solve this problem however you feel like that workaround shouldn't have to build just to monitor for environment level quota usage.

Right now, azure monitor doesn't provide this metric for the whole container apps environment it only gives per app level data so there is no direct way to set up an alert for total environment CPU or memory usage in the portal.

Until the Microsoft add support for this the only real option is to run something like a scheduled script like using az containerapp env show-usage command or API to check the usage and send alerts when needed.

-Thank you.

Answer 1

@Anderson, Mick Thanks for your patience on this.

Currently Workload Profile Node Count (Preview) is the only metric emitted by Azure monitor for container app environment as mentioned here

User's image

I understand you are looking for cpu usage metric at container app environment level which is not supported. I would suggest you raise a feature request here in feedback.azure.com, our engineering team actively monitor the requests present here and work towards its implementation based on the feasibility.

In meanwhile, the workaround would be to use either of the above suggested workarounds creating a function app and running the above shared az cli cmdlet in it.

Hope this helps, let me know if you have any further questions on this.

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Azure Container App CPU Quota Alert

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