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Merge pull request #263138 from tamram/tamram24-0111
update Windows Server quotas & considerations
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‎articles/aks/quotas-skus-regions.md

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@@ -3,7 +3,7 @@ title: Limits for resources, SKUs, and regions in Azure Kubernetes Service (AKS)
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titleSuffix: Azure Kubernetes Service
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description: Learn about the default quotas, restricted node VM SKU sizes, and region availability of the Azure Kubernetes Service (AKS).
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ms.topic: conceptual
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ms.date: 12/05/2023
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ms.date: 01/12/2024
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---
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# Quotas, virtual machine size restrictions, and region availability in Azure Kubernetes Service (AKS)

‎articles/aks/windows-vs-linux-containers.md

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titleSuffix: Azure Kubernetes Service
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description: See the Windows container considerations with Azure Kubernetes Service (AKS).
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ms.topic: article
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ms.date: 12/13/2023
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ms.date: 01/12/2024
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ms.author: schaffererin
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author: schaffererin
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# Windows container considerations with Azure Kubernetes Service
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| Feature | Windows considerations |
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|-----------|:-----------|
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| [Cluster creation][cluster-configuration] | • The first system node pool *must* be Linux.<br/> • AKS Windows clusters have a maximum limit of 10 node pools.<br/> • AKS Windows clusters have a maximum limit of 100 nodes in each node pool.<br/> • The Windows Server node pool name has a limit of six characters. |
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| [Cluster creation][cluster-configuration] | • The first system node pool *must* be Linux.<br/> • The maximum number of nodes per cluster is 5000.<br/> • The Windows Server node pool name has a limit of six characters. |
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| [Privileged containers][privileged-containers] | Not supported. The equivalent is **HostProcess Containers (HPC) containers**. |
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| [HPC containers][hpc-containers] | • HostProcess containers are the Windows alternative to Linux privileged containers. For more information, see [Create a Windows HostProcess pod](https://kubernetes.io/docs/tasks/configure-pod-container/create-hostprocess-pod/). |
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| [Azure Network Policy Manager (Azure)][azure-network-policy] | Azure Network Policy Manager doesn't support:<br/> • Named ports<br/> • SCTP protocol<br/> • Negative match labels or namespace selectors (all labels except "debug=true")<br/> • "except" CIDR blocks (a CIDR with exceptions)<br/> • Windows Server 2019<br/> |

‎includes/container-service-limits.md

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author: mgoedtel
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ms.service: azure-kubernetes-service
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ms.topic: include
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ms.date: 04/13/2023
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ms.date: 01/12/2024
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ms.author: magoedte
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ms.custom: include file
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| Resource | Limit |
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| ------------------------------------------------------------------------------------------------------------------ | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| Maximum clusters per subscription | 5000 <br />Note: spread clusters across different regions to account for Azure API throttling limits |
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| Maximum nodes per cluster with Virtual Machine Scale Sets and [Standard Load Balancer SKU][standard-load-balancer] | 5000 across all [node-pools][node-pool] (default limit: 1000) <br />Note: Running more than a 1000 nodes per cluster requires increasing the default node limit quota. [Contact support][Contact Support] for assistance.|
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|Maximum nodes per node pool (Virtual Machine Scale Sets node pools) | 1000 |
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| Maximum node pools per cluster | 100 |
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| Maximum pods per node: with [Kubenet][Kubenet] networking plug-in | Maximum: 250 <br /> Azure CLI default: 110 <br /> Azure Resource Manager template default: 110 <br /> Azure portal deployment default: 30 |
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| Maximum pods per node: with [Azure Container Networking Interface][Azure CNI] | Maximum: 250 <br /> Default: 30 |
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| Open Service Mesh (OSM) AKS addon | Kubernetes Cluster Version: AKS Supported Versions<br />OSM controllers per cluster: 1<br />Pods per OSM controller: 1600<br />Kubernetes service accounts managed by OSM: 160 |
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|Maximum load-balanced kubernetes services per cluster with [Standard Load Balancer SKU][standard-load-balancer] |300 |
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| Maximum nodes per cluster with Virtual Machine Availability Sets and Basic Load Balancer SKU | 100 |
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| Kubernetes Control Plane tier | Limit |
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| -------------- | :--------------------------------------------- |
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| Standard tier | Automatically scales Kubernetes API server based on load. Larger control plane component limits and API server/etc instances. |
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| Free tier | Limited resources with [inflight requests limit](https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/) of 50 mutating and 100 read-only calls. Recommended node limit of 10 nodes per cluster. Best for experimenting, learning, and simple testing. **Not advised for production/critical workloads**. |
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| Resource | Limit |
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|--|:-|
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| Maximum clusters per subscription | 5000 <br />Note: spread clusters across different regions to account for Azure API throttling limits |
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| Maximum nodes per cluster with Virtual Machine Scale Sets and [Standard Load Balancer SKU][standard-load-balancer] | 5000 across all [node-pools][node-pool] (default limit: 1000) <br />Note: Running more than a 1000 nodes per cluster requires increasing the default node limit quota. [Contact support][Contact Support] for assistance. |
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| Maximum nodes per node pool (Virtual Machine Scale Sets node pools) | 1000 |
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| Maximum node pools per cluster | 100 |
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| Maximum pods per node: with [Kubenet][Kubenet] networking plug-in<sup>1</sup> | Maximum: 250 <br /> Azure CLI default: 110 <br /> Azure Resource Manager template default: 110 <br /> Azure portal deployment default: 30 |
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| Maximum pods per node: with [Azure Container Networking Interface (Azure CNI)][Azure CNI]<sup>1</sup> | Maximum: 250 <br /> Maximum recommended for Windows Server containers: 110 <br /> Default: 30 |
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| Open Service Mesh (OSM) AKS addon | Kubernetes Cluster Version: AKS Supported Versions<br />OSM controllers per cluster: 1<br />Pods per OSM controller: 1600<br />Kubernetes service accounts managed by OSM: 160 |
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| Maximum load-balanced kubernetes services per cluster with [Standard Load Balancer SKU][standard-load-balancer] | 300 |
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| Maximum nodes per cluster with Virtual Machine Availability Sets and Basic Load Balancer SKU | 100 |
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<sup>1</sup> Windows Server containers must use Azure CNI networking plug-in. Kubenet is not supported for Windows Server containers.
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| Kubernetes Control Plane tier | Limit |
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|--|:-|
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| Standard tier | Automatically scales Kubernetes API server based on load. Larger control plane component limits and API server/etc instances. |
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| Free tier | Limited resources with [inflight requests limit](https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/) of 50 mutating and 100 read-only calls. Recommended node limit of 10 nodes per cluster. Best for experimenting, learning, and simple testing. **Not advised for production/critical workloads**. |
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<!-- LINKS - Internal -->
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