Resource availability & quota limits for ACI

This article details the availability and quota limits of Azure Container Instances compute, memory, and storage resources in Azure regions and by target operating system. For a general list of available regions for Azure Container Instances, see available regions.

Values presented are the maximum resources available per deployment of a container group. Values are current at time of publication.

Note

Container groups created within these resource limits are subject to availability within the deployment region. When a region is under heavy load, you may experience a failure when deploying instances. To mitigate such a deployment failure, try deploying instances with lower resource settings, or try your deployment at a later time or in a different region with available resources.

Default Quota Limits

All Azure services include certain default limits and quotas for resources and features. This section details the default quotas and limits for Azure Container Instances.

Use the List Usage API to review current quota usage in a region for a subscription.

Certain default limits and quotas can be increased. To request an increase of one or more resources that support such an increase, submit an Azure support request (select "Quota" for Issue type).

Important

Not all limit increase requests are guaranteed to be approved. Deployments with GPU resources are not supported in an Azure virtual network deployment and are only available on Linux container groups. Using GPU resources (preview) is not fully supported yet and any support is provided on a best-effort basis.

Unchangeable (Hard) Limits

The following limits are default limits that can’t be increased through a quota request. Any quota increase requests for these limits won't be approved.

Resource Actual Limit
Number of containers per container group 60
Number of volumes per container group 20
Ports per IP 5
Container instance log size - running instance 4 MB
Container instance log size - stopped instance 16 KB or 1,000 lines

Changeable Limits (Eligible for Quota Increases)

Resource Actual Limit
Standard sku container groups per region per subscription 100
Standard sku cores (CPUs) per region per subscription 100
Standard sku cores (CPUs) for V100 GPU per region per subscription 0
Container group creates per hour 3001
Container group creates per 5 minutes 1001
Container group deletes per hour 3001
Container group deletes per 5 minutes 1001

Note

1: Indicates that the feature maximum is configurable and may be increased through a support request. For more information on how to request a quota increase, please see the How to request a quota increase section of Increase VM-family vCPU quotes.

You can also create a support ticket if you'd like to discuss your specific needs with the support team.

Standard Container Resources

Linux Container Groups

By default, the following resources are available general purpose (standard core SKU) containers in general deployments and Azure virtual network deployments) for Linux & Windows containers. These maximums are hard limits and can't be increased.

Max CPU Max Memory (GB) Virtual network Max CPU Virtual network Max Memory (GB) Storage (GB)
4 16 4 16 50

For a general list of available regions for Azure Container Instances, see available regions.

Windows Containers

The following regions and maximum resources are available to container groups with supported and preview Windows Server containers. These maximums are hard limits and can't be increased.

Windows Server 2022 LTSC

3B Max CPU 3B Max Memory (GB) Storage (GB) Availability Zone support
4 16 20 Y

Windows Server 2019 LTSC

Note

1B and 2B hosts have been deprecated for Windows Server 2019 LSTC. See Host and container version compatibility for more information on 1B, 2B, and 3B hosts.

The following resources are available in all Azure Regions supported by Azure Container Instances. For a general list of available regions for Azure Container Instances, see available regions.

3B Max CPU 3B Max Memory (GB) Storage (GB) Availability Zone support
4 16 20 Y

Spot Container Resources (Preview)

The following maximum resources are available to a container group deployed using Spot Containers (preview). These maximums are hard limits and can't be increased.

Note

Spot Containers are only available in the following regions at this time: East US 2, West Europe, and West US.

Max CPU Max Memory (GB) Virtual network Max CPU Virtual network Max Memory (GB) Storage (GB)
4 16 N/A N/A 50

Confidential Container Resources (Preview)

The following maximum resources are available to a container group deployed using Confidential Containers (preview). These maximums are hard limits and can't be increased.

Note

Confidential Containers are only available in the following regions at this time: East US, North Europe, West Europe, and West US.

Max CPU Max Memory (GB) Virtual network Max CPU Virtual network Max Memory (GB) Storage (GB)
4 16 4 16 50

GPU Container Resources (Preview)

Important

K80 and P100 GPU SKUs are retiring by August 31st, 2023. This is due to the retirement of the underlying VMs used: NC Series and NCv2 Series Although V100 SKUs will be available, it is receommended to use Azure Kubernetes Service instead. GPU resources are not fully supported and should not be used for production workloads. Use the following resources to migrate to AKS today: How to Migrate to AKS.

Note

Not all limit increase requests are guaranteed to be approved. Deployments with GPU resources are not supported in an Azure virtual network deployment and are only available on Linux container groups. Using GPU resources (preview) is not fully supported yet and any support is provided on a best-effort basis.

The following maximum resources are available to a container group deployed with GPU resources (preview). These maximums are hard limits and can't be increased.

GPU SKUs GPU count Max CPU Max Memory (GB) Storage (GB)
V100 1 6 112 50
V100 2 12 224 50
V100 4 24 448 50

Next steps

Certain default limits and quotas can be increased. To request an increase of one or more resources that support such an increase, submit an Azure support request (select "Quota" for Issue type).

Let the team know if you'd like to see other regions or increased resource availability at aka.ms/aci/feedback.

For information on troubleshooting container instance deployment, see Troubleshoot deployment issues with Azure Container Instances.