Agent Pools - Create Or Update
Creates or updates an agent pool in the specified managed cluster.
PUT https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ContainerService/managedClusters/{resourceName}/agentPools/{agentPoolName}?api-version=2025-05-01
URI Parameters
Name | In | Required | Type | Description |
---|---|---|---|---|
agent
|
path | True |
string minLength: 1maxLength: 12 pattern: ^[a-z][a-z0-9]{0,11}$ |
The name of the agent pool. |
resource
|
path | True |
string minLength: 1maxLength: 90 |
The name of the resource group. The name is case insensitive. |
resource
|
path | True |
string minLength: 1maxLength: 63 pattern: ^[a-zA-Z0-9]$|^[a-zA-Z0-9][-_a-zA-Z0-9]{0,61}[a-zA-Z0-9]$ |
The name of the managed cluster resource. |
subscription
|
path | True |
string (uuid) |
The ID of the target subscription. The value must be an UUID. |
api-version
|
query | True |
string minLength: 1 |
The API version to use for this operation. |
Request Header
Name | Required | Type | Description |
---|---|---|---|
If-Match |
string |
The request should only proceed if an entity matches this string. |
|
If-None-Match |
string |
The request should only proceed if no entity matches this string. |
Request Body
Name | Type | Description |
---|---|---|
properties.availabilityZones |
string[] |
The list of Availability zones to use for nodes. This can only be specified if the AgentPoolType property is 'VirtualMachineScaleSets'. |
properties.capacityReservationGroupID |
string (arm-id) |
AKS will associate the specified agent pool with the Capacity Reservation Group. |
properties.count |
integer (int32) |
Number of agents (VMs) to host docker containers. Allowed values must be in the range of 0 to 1000 (inclusive) for user pools and in the range of 1 to 1000 (inclusive) for system pools. The default value is 1. |
properties.creationData |
CreationData to be used to specify the source Snapshot ID if the node pool will be created/upgraded using a snapshot. |
|
properties.enableAutoScaling |
boolean |
Whether to enable auto-scaler |
properties.enableEncryptionAtHost |
boolean |
Whether to enable host based OS and data drive encryption. This is only supported on certain VM sizes and in certain Azure regions. For more information, see: https://docs.microsoft.com/azure/aks/enable-host-encryption |
properties.enableFIPS |
boolean |
Whether to use a FIPS-enabled OS. See Add a FIPS-enabled node pool for more details. |
properties.enableNodePublicIP |
boolean |
Whether each node is allocated its own public IP. Some scenarios may require nodes in a node pool to receive their own dedicated public IP addresses. A common scenario is for gaming workloads, where a console needs to make a direct connection to a cloud virtual machine to minimize hops. For more information see assigning a public IP per node. The default is false. |
properties.enableUltraSSD |
boolean |
Whether to enable UltraSSD |
properties.gatewayProfile |
Profile specific to a managed agent pool in Gateway mode. This field cannot be set if agent pool mode is not Gateway. |
|
properties.gpuInstanceProfile |
GPUInstanceProfile to be used to specify GPU MIG instance profile for supported GPU VM SKU. |
|
properties.gpuProfile |
GPU settings for the Agent Pool. |
|
properties.hostGroupID |
string (arm-id) |
The fully qualified resource ID of the Dedicated Host Group to provision virtual machines from, used only in creation scenario and not allowed to changed once set. This is of the form: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/hostGroups/{hostGroupName}. For more information see Azure dedicated hosts. |
properties.kubeletConfig |
The Kubelet configuration on the agent pool nodes. |
|
properties.kubeletDiskType |
Determines the placement of emptyDir volumes, container runtime data root, and Kubelet ephemeral storage. |
|
properties.linuxOSConfig |
The OS configuration of Linux agent nodes. |
|
properties.maxCount |
integer (int32) |
The maximum number of nodes for auto-scaling |
properties.maxPods |
integer (int32) |
The maximum number of pods that can run on a node. |
properties.messageOfTheDay |
string |
Message of the day for Linux nodes, base64-encoded. A base64-encoded string which will be written to /etc/motd after decoding. This allows customization of the message of the day for Linux nodes. It must not be specified for Windows nodes. It must be a static string (i.e., will be printed raw and not be executed as a script). |
properties.minCount |
integer (int32) |
The minimum number of nodes for auto-scaling |
properties.mode |
The mode of an agent pool. A cluster must have at least one 'System' Agent Pool at all times. For additional information on agent pool restrictions and best practices, see: https://docs.microsoft.com/azure/aks/use-system-pools |
|
properties.networkProfile |
Network-related settings of an agent pool. |
|
properties.nodeLabels |
object |
The node labels to be persisted across all nodes in agent pool. |
properties.nodePublicIPPrefixID |
string (arm-id) |
The public IP prefix ID which VM nodes should use IPs from. This is of the form: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/publicIPPrefixes/{publicIPPrefixName} |
properties.nodeTaints |
string[] |
The taints added to new nodes during node pool create and scale. For example, key=value:NoSchedule. |
properties.orchestratorVersion |
string |
The version of Kubernetes specified by the user. Both patch version <major.minor.patch> (e.g. 1.20.13) and <major.minor> (e.g. 1.20) are supported. When <major.minor> is specified, the latest supported GA patch version is chosen automatically. Updating the cluster with the same <major.minor> once it has been created (e.g. 1.14.x -> 1.14) will not trigger an upgrade, even if a newer patch version is available. As a best practice, you should upgrade all node pools in an AKS cluster to the same Kubernetes version. The node pool version must have the same major version as the control plane. The node pool minor version must be within two minor versions of the control plane version. The node pool version cannot be greater than the control plane version. For more information see upgrading a node pool. |
properties.osDiskSizeGB |
integer (int32) minimum: 0maximum: 2048 |
OS Disk Size in GB to be used to specify the disk size for every machine in the master/agent pool. If you specify 0, it will apply the default osDisk size according to the vmSize specified. |
properties.osDiskType |
The OS disk type to be used for machines in the agent pool. The default is 'Ephemeral' if the VM supports it and has a cache disk larger than the requested OSDiskSizeGB. Otherwise, defaults to 'Managed'. May not be changed after creation. For more information see Ephemeral OS. |
|
properties.osSKU |
Specifies the OS SKU used by the agent pool. The default is Ubuntu if OSType is Linux. The default is Windows2019 when Kubernetes <= 1.24 or Windows2022 when Kubernetes >= 1.25 if OSType is Windows. |
|
properties.osType |
The operating system type. The default is Linux. |
|
properties.podIPAllocationMode |
Pod IP Allocation Mode. The IP allocation mode for pods in the agent pool. Must be used with podSubnetId. The default is 'DynamicIndividual'. |
|
properties.podSubnetID |
string (arm-id) |
The ID of the subnet which pods will join when launched. If omitted, pod IPs are statically assigned on the node subnet (see vnetSubnetID for more details). This is of the form: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/virtualNetworks/{virtualNetworkName}/subnets/{subnetName} |
properties.powerState |
Whether the Agent Pool is running or stopped. When an Agent Pool is first created it is initially Running. The Agent Pool can be stopped by setting this field to Stopped. A stopped Agent Pool stops all of its VMs and does not accrue billing charges. An Agent Pool can only be stopped if it is Running and provisioning state is Succeeded |
|
properties.proximityPlacementGroupID |
string (arm-id) |
The ID for Proximity Placement Group. |
properties.scaleDownMode |
The scale down mode to use when scaling the Agent Pool. This also effects the cluster autoscaler behavior. If not specified, it defaults to Delete. |
|
properties.scaleSetEvictionPolicy |
The Virtual Machine Scale Set eviction policy to use. This cannot be specified unless the scaleSetPriority is 'Spot'. If not specified, the default is 'Delete'. |
|
properties.scaleSetPriority |
The Virtual Machine Scale Set priority. If not specified, the default is 'Regular'. |
|
properties.securityProfile |
The security settings of an agent pool. |
|
properties.spotMaxPrice |
number |
The max price (in US Dollars) you are willing to pay for spot instances. Possible values are any decimal value greater than zero or -1 which indicates default price to be up-to on-demand. Possible values are any decimal value greater than zero or -1 which indicates the willingness to pay any on-demand price. For more details on spot pricing, see spot VMs pricing |
properties.status |
Contains read-only information about the Agent Pool. |
|
properties.tags |
object |
The tags to be persisted on the agent pool virtual machine scale set. |
properties.type |
The type of Agent Pool. |
|
properties.upgradeSettings |
Settings for upgrading the agentpool |
|
properties.virtualMachineNodesStatus |
The status of nodes in a VirtualMachines agent pool. |
|
properties.virtualMachinesProfile |
Specifications on VirtualMachines agent pool. |
|
properties.vmSize |
string |
The size of the agent pool VMs. VM size availability varies by region. If a node contains insufficient compute resources (memory, cpu, etc) pods might fail to run correctly. For more details on restricted VM sizes, see: https://docs.microsoft.com/azure/aks/quotas-skus-regions |
properties.vnetSubnetID |
string (arm-id) |
The ID of the subnet which agent pool nodes and optionally pods will join on startup. If this is not specified, a VNET and subnet will be generated and used. If no podSubnetID is specified, this applies to nodes and pods, otherwise it applies to just nodes. This is of the form: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/virtualNetworks/{virtualNetworkName}/subnets/{subnetName} |
properties.windowsProfile |
The Windows agent pool's specific profile. |
|
properties.workloadRuntime |
Determines the type of workload a node can run. |
Responses
Name | Type | Description |
---|---|---|
200 OK |
The existing agent pool was successfully updated. |
|
201 Created |
The new agent pool was successfully created. |
|
Other Status Codes |
Error response describing why the operation failed. |
Security
azure_auth
Azure Active Directory OAuth2 Flow
Type:
oauth2
Flow:
implicit
Authorization URL:
https://login.microsoftonline.com/common/oauth2/authorize
Scopes
Name | Description |
---|---|
user_impersonation | impersonate your user account |
Examples
Create Agent Pool using an agent pool snapshot
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"enableFIPS": true,
"creationData": {
"sourceResourceId": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/snapshots/snapshot1"
}
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.19.6",
"currentOrchestratorVersion": "1.19.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"enableFIPS": true,
"creationData": {
"sourceResourceId": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/snapshots/snapshot1"
}
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.19.6",
"currentOrchestratorVersion": "1.19.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"enableFIPS": true,
"creationData": {
"sourceResourceId": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/snapshots/snapshot1"
}
}
}
Create Agent Pool with Capacity Reservation Group
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"capacityReservationGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.Compute/CapacityReservationGroups/crg1"
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"capacityReservationGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.Compute/CapacityReservationGroups/crg1"
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"capacityReservationGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.Compute/CapacityReservationGroups/crg1"
}
}
Create Agent Pool with Dedicated Host Group
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"hostGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg/providers/Microsoft.Compute/hostGroups/hostgroup1"
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.19.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"hostGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg/providers/Microsoft.Compute/hostGroups/hostgroup1"
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.19.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"hostGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg/providers/Microsoft.Compute/hostGroups/hostgroup1"
}
}
Create Agent Pool with EncryptionAtHost enabled
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"enableEncryptionAtHost": true
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.17.13",
"currentOrchestratorVersion": "1.17.13",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"enableEncryptionAtHost": true
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.17.13",
"currentOrchestratorVersion": "1.17.13",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"enableEncryptionAtHost": true
}
}
Create Agent Pool with Ephemeral OS Disk
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"osDiskType": "Ephemeral",
"osDiskSizeGB": 64
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"osDiskType": "Ephemeral",
"osDiskSizeGB": 64
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"osDiskType": "Ephemeral",
"kubeletDiskType": "OS",
"osDiskSizeGB": 64
}
}
Create Agent Pool with FIPS enabled OS
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"enableFIPS": true
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.19.6",
"currentOrchestratorVersion": "1.19.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"enableFIPS": true
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.19.6",
"currentOrchestratorVersion": "1.19.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"enableFIPS": true
}
}
Create Agent Pool with GPUMIG
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_ND96asr_v4",
"osType": "Linux",
"gpuInstanceProfile": "MIG2g",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 12345,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_ND96asr_v4",
"maxPods": 110,
"osType": "Linux",
"gpuInstanceProfile": "MIG2g",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 12345,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_ND96asr_v4",
"maxPods": 110,
"osType": "Linux",
"gpuInstanceProfile": "MIG2g",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false,
"podMaxPids": 100
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 65536,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
Create Agent Pool with Krustlet and the WASI runtime
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"osDiskSizeGB": 64,
"mode": "User",
"workloadRuntime": "WasmWasi"
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"osDiskSizeGB": 64,
"mode": "User",
"workloadRuntime": "WasmWasi"
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"osDiskSizeGB": 64,
"mode": "User",
"workloadRuntime": "WasmWasi"
}
}
Create Agent Pool with KubeletConfig and LinuxOSConfig
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 12345,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 12345,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false,
"podMaxPids": 100
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 65536,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
Create Agent Pool with Message of the Day
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"osDiskSizeGB": 64,
"mode": "User",
"messageOfTheDay": "Zm9vCg=="
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"osDiskSizeGB": 64,
"mode": "User",
"messageOfTheDay": "Zm9vCg=="
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"osDiskSizeGB": 64,
"mode": "User",
"messageOfTheDay": "Zm9vCg=="
}
}
Create Agent Pool with OSSKU
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"osSKU": "AzureLinux",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 12345,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"osSKU": "AzureLinux",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 12345,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.17.8",
"currentOrchestratorVersion": "1.17.8",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"osSKU": "AzureLinux",
"kubeletConfig": {
"cpuManagerPolicy": "static",
"cpuCfsQuota": true,
"cpuCfsQuotaPeriod": "200ms",
"imageGcHighThreshold": 90,
"imageGcLowThreshold": 70,
"topologyManagerPolicy": "best-effort",
"allowedUnsafeSysctls": [
"kernel.msg*",
"net.core.somaxconn"
],
"failSwapOn": false,
"podMaxPids": 100
},
"linuxOSConfig": {
"sysctls": {
"netCoreWmemDefault": 65536,
"netIpv4TcpTwReuse": true,
"netIpv4IpLocalPortRange": "20000 60000",
"kernelThreadsMax": 99999
},
"transparentHugePageEnabled": "always",
"transparentHugePageDefrag": "madvise",
"swapFileSizeMB": 1500
}
}
}
Create Agent Pool with PPG
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"proximityPlacementGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.Compute/proximityPlacementGroups/ppg1"
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"proximityPlacementGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.Compute/proximityPlacementGroups/ppg1"
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"proximityPlacementGroupID": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.Compute/proximityPlacementGroups/ppg1"
}
}
Create Agent Pool with UltraSSD enabled
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS2_v2",
"osType": "Linux",
"enableUltraSSD": true
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.17.13",
"currentOrchestratorVersion": "1.17.13",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"enableUltraSSD": true
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.17.13",
"currentOrchestratorVersion": "1.17.13",
"count": 3,
"vmSize": "Standard_DS2_v2",
"maxPods": 110,
"osType": "Linux",
"enableUltraSSD": true
}
}
Create Agent Pool with VirtualMachines pool type
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "1.9.6",
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"type": "VirtualMachines",
"virtualMachinesProfile": {
"scale": {
"manual": [
{
"size": "Standard_D2_v2",
"count": 3
},
{
"size": "Standard_D2_v3",
"count": 2
}
]
}
}
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"maxPods": 110,
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"type": "VirtualMachines",
"virtualMachinesProfile": {
"scale": {
"manual": [
{
"size": "Standard_D2_v2",
"count": 3
},
{
"size": "Standard_D2_v3",
"count": 2
}
]
}
},
"virtualMachineNodesStatus": [
{
"size": "Standard_D2_v2",
"count": 3
},
{
"size": "Standard_D2_v3",
"count": 2
}
],
"nodeImageVersion": "AKSUbuntu-1804gen2containerd-2021.09.11"
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"maxPods": 110,
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"type": "VirtualMachines",
"virtualMachinesProfile": {
"scale": {
"manual": [
{
"size": "Standard_D2_v2",
"count": 3
},
{
"size": "Standard_D2_v3",
"count": 2
}
]
}
},
"virtualMachineNodesStatus": [
{
"size": "Standard_D2_v2",
"count": 3
},
{
"size": "Standard_D2_v3",
"count": 2
}
],
"nodeImageVersion": "AKSUbuntu-1804gen2containerd-2021.09.11"
}
}
Create Agent Pool with Windows OSSKU
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/wnp2?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "1.23.3",
"count": 3,
"vmSize": "Standard_D4s_v3",
"osType": "Windows",
"osSKU": "Windows2022"
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/wnp2",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "wnp2",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.23.3",
"currentOrchestratorVersion": "1.23.3",
"count": 3,
"vmSize": "Standard_D4s_v3",
"maxPods": 110,
"osType": "Windows",
"osSKU": "Windows2022"
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/wnp2",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "wnp2",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.23.3",
"currentOrchestratorVersion": "1.23.3",
"count": 3,
"vmSize": "Standard_D4s_v3",
"maxPods": 110,
"osType": "Windows",
"osSKU": "Windows2022"
}
}
Create Spot Agent Pool
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS1_v2",
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete"
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"vmSize": "Standard_DS1_v2",
"maxPods": 110,
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete",
"spotMaxPrice": -1
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"vmSize": "Standard_DS1_v2",
"maxPods": 110,
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete",
"spotMaxPrice": -1
}
}
Create Windows Agent Pool with disabling OutboundNAT
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/wnp2?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "1.23.8",
"count": 3,
"vmSize": "Standard_D4s_v3",
"osType": "Windows",
"osSKU": "Windows2022",
"windowsProfile": {
"disableOutboundNat": true
}
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/wnp2",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "wnp2",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.23.8",
"currentOrchestratorVersion": "1.23.8",
"count": 3,
"vmSize": "Standard_D4s_v3",
"maxPods": 110,
"osType": "Windows",
"osSKU": "Windows2022",
"windowsProfile": {
"disableOutboundNat": true
}
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/wnp2",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "wnp2",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.23.8",
"currentOrchestratorVersion": "1.23.8",
"count": 3,
"vmSize": "Standard_D4s_v3",
"maxPods": 110,
"osType": "Windows",
"osSKU": "Windows2022",
"windowsProfile": {
"disableOutboundNat": true
}
}
}
Create/Update Agent Pool
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"vmSize": "Standard_DS1_v2",
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete",
"mode": "User"
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"vmSize": "Standard_DS1_v2",
"maxPods": 110,
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete",
"mode": "User",
"nodeImageVersion": "AKSUbuntu:1604:2020.03.11"
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Creating",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"vmSize": "Standard_DS1_v2",
"maxPods": 110,
"osType": "Linux",
"tags": {
"name1": "val1"
},
"nodeLabels": {
"key1": "val1"
},
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete",
"mode": "User"
}
}
Start Agent Pool
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"powerState": {
"code": "Running"
}
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Starting",
"count": 50,
"enableAutoScaling": true,
"minCount": 3,
"maxCount": 55,
"powerState": {
"code": "Running"
}
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Starting",
"count": 50,
"enableAutoScaling": true,
"minCount": 3,
"maxCount": 55,
"powerState": {
"code": "Running"
}
}
}
Stop Agent Pool
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"powerState": {
"code": "Stopped"
}
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Stopping",
"count": 0,
"enableAutoScaling": false,
"minCount": null,
"maxCount": null,
"powerState": {
"code": "Stopped"
}
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Stopping",
"count": 0,
"enableAutoScaling": false,
"minCount": null,
"maxCount": null,
"powerState": {
"code": "Stopped"
}
}
}
Update Agent Pool
Sample request
PUT https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1?api-version=2025-05-01
{
"properties": {
"orchestratorVersion": "",
"count": 3,
"enableAutoScaling": true,
"minCount": 2,
"maxCount": 2,
"vmSize": "Standard_DS1_v2",
"osType": "Linux",
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete"
}
}
Sample response
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Succeeded",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"enableAutoScaling": true,
"minCount": 2,
"maxCount": 2,
"vmSize": "Standard_DS1_v2",
"maxPods": 110,
"osType": "Linux",
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete"
}
}
{
"id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
"type": "Microsoft.ContainerService/managedClusters/agentPools",
"name": "agentpool1",
"properties": {
"provisioningState": "Updating",
"orchestratorVersion": "1.9.6",
"currentOrchestratorVersion": "1.9.6",
"count": 3,
"enableAutoScaling": true,
"minCount": 2,
"maxCount": 2,
"vmSize": "Standard_DS1_v2",
"maxPods": 110,
"osType": "Linux",
"nodeTaints": [
"Key1=Value1:NoSchedule"
],
"scaleSetPriority": "Spot",
"scaleSetEvictionPolicy": "Delete"
}
}
Definitions
Name | Description |
---|---|
Agent |
Agent Pool. |
Agent |
Profile of the managed cluster gateway agent pool. |
Agent |
The mode of an agent pool. A cluster must have at least one 'System' Agent Pool at all times. For additional information on agent pool restrictions and best practices, see: https://docs.microsoft.com/azure/aks/use-system-pools |
Agent |
Network settings of an agent pool. |
Agent |
The security settings of an agent pool. |
Agent |
Contains read-only information about the Agent Pool. |
Agent |
The type of Agent Pool. |
Agent |
Settings for upgrading an agentpool |
Agent |
The Windows agent pool's specific profile. |
Cloud |
An error response from the Container service. |
Cloud |
An error response from the Container service. |
code |
Tells whether the cluster is Running or Stopped |
Creation |
Data used when creating a target resource from a source resource. |
GPUDriver |
Whether to install GPU drivers. When it's not specified, default is Install. |
GPUInstance |
GPUInstanceProfile to be used to specify GPU MIG instance profile for supported GPU VM SKU. |
GPUProfile |
GPU settings for the Agent Pool. |
IPTag |
Contains the IPTag associated with the object. |
Kubelet |
Kubelet configurations of agent nodes. See AKS custom node configuration for more details. |
Kubelet |
Determines the placement of emptyDir volumes, container runtime data root, and Kubelet ephemeral storage. |
Linux |
OS configurations of Linux agent nodes. See AKS custom node configuration for more details. |
Manual |
Specifications on number of machines. |
OSDisk |
The OS disk type to be used for machines in the agent pool. The default is 'Ephemeral' if the VM supports it and has a cache disk larger than the requested OSDiskSizeGB. Otherwise, defaults to 'Managed'. May not be changed after creation. For more information see Ephemeral OS. |
OSSKU |
Specifies the OS SKU used by the agent pool. The default is Ubuntu if OSType is Linux. The default is Windows2019 when Kubernetes <= 1.24 or Windows2022 when Kubernetes >= 1.25 if OSType is Windows. |
OSType |
The operating system type. The default is Linux. |
Pod |
Pod IP Allocation Mode. The IP allocation mode for pods in the agent pool. Must be used with podSubnetId. The default is 'DynamicIndividual'. |
Port |
The port range. |
Power |
Describes the Power State of the cluster |
Protocol |
The network protocol of the port. |
Scale |
Describes how VMs are added to or removed from Agent Pools. See billing states. |
Scale |
Specifications on how to scale a VirtualMachines agent pool. |
Scale |
The Virtual Machine Scale Set eviction policy. The eviction policy specifies what to do with the VM when it is evicted. The default is Delete. For more information about eviction see spot VMs |
Scale |
The Virtual Machine Scale Set priority. |
Sysctl |
Sysctl settings for Linux agent nodes. |
Undrainable |
Defines the behavior for undrainable nodes during upgrade. The most common cause of undrainable nodes is Pod Disruption Budgets (PDBs), but other issues, such as pod termination grace period is exceeding the remaining per-node drain timeout or pod is still being in a running state, can also cause undrainable nodes. |
Virtual |
Current status on a group of nodes of the same vm size. |
Virtual |
Specifications on VirtualMachines agent pool. |
Workload |
Determines the type of workload a node can run. |
AgentPool
Agent Pool.
Name | Type | Default value | Description |
---|---|---|---|
id |
string |
Resource ID. |
|
name |
string |
The name of the resource that is unique within a resource group. This name can be used to access the resource. |
|
properties.availabilityZones |
string[] |
The list of Availability zones to use for nodes. This can only be specified if the AgentPoolType property is 'VirtualMachineScaleSets'. |
|
properties.capacityReservationGroupID |
string (arm-id) |
AKS will associate the specified agent pool with the Capacity Reservation Group. |
|
properties.count |
integer (int32) |
Number of agents (VMs) to host docker containers. Allowed values must be in the range of 0 to 1000 (inclusive) for user pools and in the range of 1 to 1000 (inclusive) for system pools. The default value is 1. |
|
properties.creationData |
CreationData to be used to specify the source Snapshot ID if the node pool will be created/upgraded using a snapshot. |
||
properties.currentOrchestratorVersion |
string |
The version of Kubernetes the Agent Pool is running. If orchestratorVersion is a fully specified version <major.minor.patch>, this field will be exactly equal to it. If orchestratorVersion is <major.minor>, this field will contain the full <major.minor.patch> version being used. |
|
properties.eTag |
string |
Unique read-only string used to implement optimistic concurrency. The eTag value will change when the resource is updated. Specify an if-match or if-none-match header with the eTag value for a subsequent request to enable optimistic concurrency per the normal etag convention. |
|
properties.enableAutoScaling |
boolean |
Whether to enable auto-scaler |
|
properties.enableEncryptionAtHost |
boolean |
Whether to enable host based OS and data drive encryption. This is only supported on certain VM sizes and in certain Azure regions. For more information, see: https://docs.microsoft.com/azure/aks/enable-host-encryption |
|
properties.enableFIPS |
boolean |
Whether to use a FIPS-enabled OS. See Add a FIPS-enabled node pool for more details. |
|
properties.enableNodePublicIP |
boolean |
Whether each node is allocated its own public IP. Some scenarios may require nodes in a node pool to receive their own dedicated public IP addresses. A common scenario is for gaming workloads, where a console needs to make a direct connection to a cloud virtual machine to minimize hops. For more information see assigning a public IP per node. The default is false. |
|
properties.enableUltraSSD |
boolean |
Whether to enable UltraSSD |
|
properties.gatewayProfile |
Profile specific to a managed agent pool in Gateway mode. This field cannot be set if agent pool mode is not Gateway. |
||
properties.gpuInstanceProfile |
GPUInstanceProfile to be used to specify GPU MIG instance profile for supported GPU VM SKU. |
||
properties.gpuProfile |
GPU settings for the Agent Pool. |
||
properties.hostGroupID |
string (arm-id) |
The fully qualified resource ID of the Dedicated Host Group to provision virtual machines from, used only in creation scenario and not allowed to changed once set. This is of the form: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/hostGroups/{hostGroupName}. For more information see Azure dedicated hosts. |
|
properties.kubeletConfig |
The Kubelet configuration on the agent pool nodes. |
||
properties.kubeletDiskType |
Determines the placement of emptyDir volumes, container runtime data root, and Kubelet ephemeral storage. |
||
properties.linuxOSConfig |
The OS configuration of Linux agent nodes. |
||
properties.maxCount |
integer (int32) |
The maximum number of nodes for auto-scaling |
|
properties.maxPods |
integer (int32) |
The maximum number of pods that can run on a node. |
|
properties.messageOfTheDay |
string |
Message of the day for Linux nodes, base64-encoded. A base64-encoded string which will be written to /etc/motd after decoding. This allows customization of the message of the day for Linux nodes. It must not be specified for Windows nodes. It must be a static string (i.e., will be printed raw and not be executed as a script). |
|
properties.minCount |
integer (int32) |
The minimum number of nodes for auto-scaling |
|
properties.mode |
The mode of an agent pool. A cluster must have at least one 'System' Agent Pool at all times. For additional information on agent pool restrictions and best practices, see: https://docs.microsoft.com/azure/aks/use-system-pools |
||
properties.networkProfile |
Network-related settings of an agent pool. |
||
properties.nodeImageVersion |
string |
The version of node image |
|
properties.nodeLabels |
object |
The node labels to be persisted across all nodes in agent pool. |
|
properties.nodePublicIPPrefixID |
string (arm-id) |
The public IP prefix ID which VM nodes should use IPs from. This is of the form: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/publicIPPrefixes/{publicIPPrefixName} |
|
properties.nodeTaints |
string[] |
The taints added to new nodes during node pool create and scale. For example, key=value:NoSchedule. |
|
properties.orchestratorVersion |
string |
The version of Kubernetes specified by the user. Both patch version <major.minor.patch> (e.g. 1.20.13) and <major.minor> (e.g. 1.20) are supported. When <major.minor> is specified, the latest supported GA patch version is chosen automatically. Updating the cluster with the same <major.minor> once it has been created (e.g. 1.14.x -> 1.14) will not trigger an upgrade, even if a newer patch version is available. As a best practice, you should upgrade all node pools in an AKS cluster to the same Kubernetes version. The node pool version must have the same major version as the control plane. The node pool minor version must be within two minor versions of the control plane version. The node pool version cannot be greater than the control plane version. For more information see upgrading a node pool. |
|
properties.osDiskSizeGB |
integer (int32) minimum: 0maximum: 2048 |
OS Disk Size in GB to be used to specify the disk size for every machine in the master/agent pool. If you specify 0, it will apply the default osDisk size according to the vmSize specified. |
|
properties.osDiskType |
The OS disk type to be used for machines in the agent pool. The default is 'Ephemeral' if the VM supports it and has a cache disk larger than the requested OSDiskSizeGB. Otherwise, defaults to 'Managed'. May not be changed after creation. For more information see Ephemeral OS. |
||
properties.osSKU |
Specifies the OS SKU used by the agent pool. The default is Ubuntu if OSType is Linux. The default is Windows2019 when Kubernetes <= 1.24 or Windows2022 when Kubernetes >= 1.25 if OSType is Windows. |
||
properties.osType | Linux |
The operating system type. The default is Linux. |
|
properties.podIPAllocationMode |
Pod IP Allocation Mode. The IP allocation mode for pods in the agent pool. Must be used with podSubnetId. The default is 'DynamicIndividual'. |
||
properties.podSubnetID |
string (arm-id) |
The ID of the subnet which pods will join when launched. If omitted, pod IPs are statically assigned on the node subnet (see vnetSubnetID for more details). This is of the form: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/virtualNetworks/{virtualNetworkName}/subnets/{subnetName} |
|
properties.powerState |
Whether the Agent Pool is running or stopped. When an Agent Pool is first created it is initially Running. The Agent Pool can be stopped by setting this field to Stopped. A stopped Agent Pool stops all of its VMs and does not accrue billing charges. An Agent Pool can only be stopped if it is Running and provisioning state is Succeeded |
||
properties.provisioningState |
string |
The current deployment or provisioning state. |
|
properties.proximityPlacementGroupID |
string (arm-id) |
The ID for Proximity Placement Group. |
|
properties.scaleDownMode |
The scale down mode to use when scaling the Agent Pool. This also effects the cluster autoscaler behavior. If not specified, it defaults to Delete. |
||
properties.scaleSetEvictionPolicy | Delete |
The Virtual Machine Scale Set eviction policy to use. This cannot be specified unless the scaleSetPriority is 'Spot'. If not specified, the default is 'Delete'. |
|
properties.scaleSetPriority | Regular |
The Virtual Machine Scale Set priority. If not specified, the default is 'Regular'. |
|
properties.securityProfile |
The security settings of an agent pool. |
||
properties.spotMaxPrice |
number |
-1 |
The max price (in US Dollars) you are willing to pay for spot instances. Possible values are any decimal value greater than zero or -1 which indicates default price to be up-to on-demand. Possible values are any decimal value greater than zero or -1 which indicates the willingness to pay any on-demand price. For more details on spot pricing, see spot VMs pricing |
properties.status |
Contains read-only information about the Agent Pool. |
||
properties.tags |
object |
The tags to be persisted on the agent pool virtual machine scale set. |
|
properties.type |
The type of Agent Pool. |
||
properties.upgradeSettings |
Settings for upgrading the agentpool |
||
properties.virtualMachineNodesStatus |
The status of nodes in a VirtualMachines agent pool. |
||
properties.virtualMachinesProfile |
Specifications on VirtualMachines agent pool. |
||
properties.vmSize |
string |
The size of the agent pool VMs. VM size availability varies by region. If a node contains insufficient compute resources (memory, cpu, etc) pods might fail to run correctly. For more details on restricted VM sizes, see: https://docs.microsoft.com/azure/aks/quotas-skus-regions |
|
properties.vnetSubnetID |
string (arm-id) |
The ID of the subnet which agent pool nodes and optionally pods will join on startup. If this is not specified, a VNET and subnet will be generated and used. If no podSubnetID is specified, this applies to nodes and pods, otherwise it applies to just nodes. This is of the form: /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/virtualNetworks/{virtualNetworkName}/subnets/{subnetName} |
|
properties.windowsProfile |
The Windows agent pool's specific profile. |
||
properties.workloadRuntime |
Determines the type of workload a node can run. |
||
type |
string |
Resource type |
AgentPoolGatewayProfile
Profile of the managed cluster gateway agent pool.
Name | Type | Default value | Description |
---|---|---|---|
publicIPPrefixSize |
integer (int32) minimum: 28maximum: 31 |
31 |
The Gateway agent pool associates one public IPPrefix for each static egress gateway to provide public egress. The size of Public IPPrefix should be selected by the user. Each node in the agent pool is assigned with one IP from the IPPrefix. The IPPrefix size thus serves as a cap on the size of the Gateway agent pool. Due to Azure public IPPrefix size limitation, the valid value range is [28, 31] (/31 = 2 nodes/IPs, /30 = 4 nodes/IPs, /29 = 8 nodes/IPs, /28 = 16 nodes/IPs). The default value is 31. |
AgentPoolMode
The mode of an agent pool. A cluster must have at least one 'System' Agent Pool at all times. For additional information on agent pool restrictions and best practices, see: https://docs.microsoft.com/azure/aks/use-system-pools
Value | Description |
---|---|
System |
System agent pools are primarily for hosting critical system pods such as CoreDNS and metrics-server. System agent pools osType must be Linux. System agent pools VM SKU must have at least 2vCPUs and 4GB of memory. |
User |
User agent pools are primarily for hosting your application pods. |
Gateway |
Gateway agent pools are dedicated to providing static egress IPs to pods. For more details, see https://aka.ms/aks/static-egress-gateway. |
AgentPoolNetworkProfile
Network settings of an agent pool.
Name | Type | Description |
---|---|---|
allowedHostPorts |
The port ranges that are allowed to access. The specified ranges are allowed to overlap. |
|
applicationSecurityGroups |
string[] (arm-id) |
The IDs of the application security groups which agent pool will associate when created. |
nodePublicIPTags |
IPTag[] |
IPTags of instance-level public IPs. |
AgentPoolSecurityProfile
The security settings of an agent pool.
Name | Type | Description |
---|---|---|
enableSecureBoot |
boolean |
Secure Boot is a feature of Trusted Launch which ensures that only signed operating systems and drivers can boot. For more details, see aka.ms/aks/trustedlaunch. If not specified, the default is false. |
enableVTPM |
boolean |
vTPM is a Trusted Launch feature for configuring a dedicated secure vault for keys and measurements held locally on the node. For more details, see aka.ms/aks/trustedlaunch. If not specified, the default is false. |
AgentPoolStatus
Contains read-only information about the Agent Pool.
Name | Type | Description |
---|---|---|
provisioningError |
The error detail information of the agent pool. Preserves the detailed info of failure. If there was no error, this field is omitted. |
AgentPoolType
The type of Agent Pool.
Value | Description |
---|---|
VirtualMachineScaleSets |
Create an Agent Pool backed by a Virtual Machine Scale Set. |
AvailabilitySet |
Use of this is strongly discouraged. |
VirtualMachines |
Create an Agent Pool backed by a Single Instance VM orchestration mode. |
AgentPoolUpgradeSettings
Settings for upgrading an agentpool
Name | Type | Description |
---|---|---|
drainTimeoutInMinutes |
integer (int32) minimum: 1maximum: 1440 |
The drain timeout for a node. The amount of time (in minutes) to wait on eviction of pods and graceful termination per node. This eviction wait time honors waiting on pod disruption budgets. If this time is exceeded, the upgrade fails. If not specified, the default is 30 minutes. |
maxSurge |
string |
The maximum number or percentage of nodes that are surged during upgrade. This can either be set to an integer (e.g. '5') or a percentage (e.g. '50%'). If a percentage is specified, it is the percentage of the total agent pool size at the time of the upgrade. For percentages, fractional nodes are rounded up. If not specified, the default is 10%. For more information, including best practices, see: https://learn.microsoft.com/en-us/azure/aks/upgrade-cluster |
maxUnavailable |
string |
The maximum number or percentage of nodes that can be simultaneously unavailable during upgrade. This can either be set to an integer (e.g. '1') or a percentage (e.g. '5%'). If a percentage is specified, it is the percentage of the total agent pool size at the time of the upgrade. For percentages, fractional nodes are rounded up. If not specified, the default is 0. For more information, including best practices, see: https://learn.microsoft.com/en-us/azure/aks/upgrade-cluster |
nodeSoakDurationInMinutes |
integer (int32) minimum: 0maximum: 30 |
The soak duration for a node. The amount of time (in minutes) to wait after draining a node and before reimaging it and moving on to next node. If not specified, the default is 0 minutes. |
undrainableNodeBehavior |
Defines the behavior for undrainable nodes during upgrade. The most common cause of undrainable nodes is Pod Disruption Budgets (PDBs), but other issues, such as pod termination grace period is exceeding the remaining per-node drain timeout or pod is still being in a running state, can also cause undrainable nodes. |
AgentPoolWindowsProfile
The Windows agent pool's specific profile.
Name | Type | Description |
---|---|---|
disableOutboundNat |
boolean |
Whether to disable OutboundNAT in windows nodes. The default value is false. Outbound NAT can only be disabled if the cluster outboundType is NAT Gateway and the Windows agent pool does not have node public IP enabled. |
CloudError
An error response from the Container service.
Name | Type | Description |
---|---|---|
error |
Details about the error. |
CloudErrorBody
An error response from the Container service.
Name | Type | Description |
---|---|---|
code |
string |
An identifier for the error. Codes are invariant and are intended to be consumed programmatically. |
details |
A list of additional details about the error. |
|
message |
string |
A message describing the error, intended to be suitable for display in a user interface. |
target |
string |
The target of the particular error. For example, the name of the property in error. |
code
Tells whether the cluster is Running or Stopped
Value | Description |
---|---|
Running |
The cluster is running. |
Stopped |
The cluster is stopped. |
CreationData
Data used when creating a target resource from a source resource.
Name | Type | Description |
---|---|---|
sourceResourceId |
string (arm-id) |
This is the ARM ID of the source object to be used to create the target object. |
GPUDriver
Whether to install GPU drivers. When it's not specified, default is Install.
Value | Description |
---|---|
Install |
Install driver. |
None |
Skip driver install. |
GPUInstanceProfile
GPUInstanceProfile to be used to specify GPU MIG instance profile for supported GPU VM SKU.
Value | Description |
---|---|
MIG1g | |
MIG2g | |
MIG3g | |
MIG4g | |
MIG7g |
GPUProfile
GPU settings for the Agent Pool.
Name | Type | Description |
---|---|---|
driver |
Whether to install GPU drivers. When it's not specified, default is Install. |
IPTag
Contains the IPTag associated with the object.
Name | Type | Description |
---|---|---|
ipTagType |
string |
The IP tag type. Example: RoutingPreference. |
tag |
string |
The value of the IP tag associated with the public IP. Example: Internet. |
KubeletConfig
Kubelet configurations of agent nodes. See AKS custom node configuration for more details.
Name | Type | Description |
---|---|---|
allowedUnsafeSysctls |
string[] |
Allowed list of unsafe sysctls or unsafe sysctl patterns (ending in |
containerLogMaxFiles |
integer (int32) minimum: 2 |
The maximum number of container log files that can be present for a container. The number must be ≥ 2. |
containerLogMaxSizeMB |
integer (int32) |
The maximum size (e.g. 10Mi) of container log file before it is rotated. |
cpuCfsQuota |
boolean |
If CPU CFS quota enforcement is enabled for containers that specify CPU limits. The default is true. |
cpuCfsQuotaPeriod |
string |
The CPU CFS quota period value. The default is '100ms.' Valid values are a sequence of decimal numbers with an optional fraction and a unit suffix. For example: '300ms', '2h45m'. Supported units are 'ns', 'us', 'ms', 's', 'm', and 'h'. |
cpuManagerPolicy |
string |
The CPU Manager policy to use. The default is 'none'. See Kubernetes CPU management policies for more information. Allowed values are 'none' and 'static'. |
failSwapOn |
boolean |
If set to true it will make the Kubelet fail to start if swap is enabled on the node. |
imageGcHighThreshold |
integer (int32) |
The percent of disk usage after which image garbage collection is always run. To disable image garbage collection, set to 100. The default is 85% |
imageGcLowThreshold |
integer (int32) |
The percent of disk usage before which image garbage collection is never run. This cannot be set higher than imageGcHighThreshold. The default is 80% |
podMaxPids |
integer (int32) |
The maximum number of processes per pod. |
topologyManagerPolicy |
string |
The Topology Manager policy to use. For more information see Kubernetes Topology Manager. The default is 'none'. Allowed values are 'none', 'best-effort', 'restricted', and 'single-numa-node'. |
KubeletDiskType
Determines the placement of emptyDir volumes, container runtime data root, and Kubelet ephemeral storage.
Value | Description |
---|---|
OS |
Kubelet will use the OS disk for its data. |
Temporary |
Kubelet will use the temporary disk for its data. |
LinuxOSConfig
OS configurations of Linux agent nodes. See AKS custom node configuration for more details.
Name | Type | Description |
---|---|---|
swapFileSizeMB |
integer (int32) |
The size in MB of a swap file that will be created on each node. |
sysctls |
Sysctl settings for Linux agent nodes. |
|
transparentHugePageDefrag |
string |
Whether the kernel should make aggressive use of memory compaction to make more hugepages available. Valid values are 'always', 'defer', 'defer+madvise', 'madvise' and 'never'. The default is 'madvise'. For more information see Transparent Hugepages. |
transparentHugePageEnabled |
string |
Whether transparent hugepages are enabled. Valid values are 'always', 'madvise', and 'never'. The default is 'always'. For more information see Transparent Hugepages. |
ManualScaleProfile
Specifications on number of machines.
Name | Type | Description |
---|---|---|
count |
integer (int32) |
Number of nodes. |
size |
string |
VM size that AKS will use when creating and scaling e.g. 'Standard_E4s_v3', 'Standard_E16s_v3' or 'Standard_D16s_v5'. |
OSDiskType
The OS disk type to be used for machines in the agent pool. The default is 'Ephemeral' if the VM supports it and has a cache disk larger than the requested OSDiskSizeGB. Otherwise, defaults to 'Managed'. May not be changed after creation. For more information see Ephemeral OS.
Value | Description |
---|---|
Managed |
Azure replicates the operating system disk for a virtual machine to Azure storage to avoid data loss should the VM need to be relocated to another host. Since containers aren't designed to have local state persisted, this behavior offers limited value while providing some drawbacks, including slower node provisioning and higher read/write latency. |
Ephemeral |
Ephemeral OS disks are stored only on the host machine, just like a temporary disk. This provides lower read/write latency, along with faster node scaling and cluster upgrades. |
OSSKU
Specifies the OS SKU used by the agent pool. The default is Ubuntu if OSType is Linux. The default is Windows2019 when Kubernetes <= 1.24 or Windows2022 when Kubernetes >= 1.25 if OSType is Windows.
Value | Description |
---|---|
Ubuntu |
Use Ubuntu as the OS for node images. |
CBLMariner |
Deprecated OSSKU. Microsoft recommends that new deployments choose 'AzureLinux' instead. |
AzureLinux |
Use AzureLinux as the OS for node images. Azure Linux is a container-optimized Linux distro built by Microsoft, visit https://aka.ms/azurelinux for more information. |
Windows2019 |
Use Windows2019 as the OS for node images. Unsupported for system node pools. Windows2019 only supports Windows2019 containers; it cannot run Windows2022 containers and vice versa. |
Windows2022 |
Use Windows2022 as the OS for node images. Unsupported for system node pools. Windows2022 only supports Windows2022 containers; it cannot run Windows2019 containers and vice versa. |
Ubuntu2204 |
Use Ubuntu2204 as the OS for node images, however, Ubuntu 22.04 may not be supported for all nodepools. For limitations and supported kubernetes versions, see see https://aka.ms/aks/supported-ubuntu-versions |
OSType
The operating system type. The default is Linux.
Value | Description |
---|---|
Linux |
Use Linux. |
Windows |
Use Windows. |
PodIPAllocationMode
Pod IP Allocation Mode. The IP allocation mode for pods in the agent pool. Must be used with podSubnetId. The default is 'DynamicIndividual'.
Value | Description |
---|---|
DynamicIndividual |
Each node gets allocated with a non-contiguous list of IP addresses assignable to pods. This is better for maximizing a small to medium subnet of size /16 or smaller. The Azure CNI cluster with dynamic IP allocation defaults to this mode if the customer does not explicitly specify a podIPAllocationMode |
StaticBlock |
Each node is statically allocated CIDR block(s) of size /28 = 16 IPs per block to satisfy the maxPods per node. Number of CIDR blocks >= (maxPods / 16). The block, rather than a single IP, counts against the Azure Vnet Private IP limit of 65K. Therefore block mode is suitable for running larger workloads with more than the current limit of 65K pods in a cluster. This mode is better suited to scale with larger subnets of /15 or bigger |
PortRange
The port range.
Name | Type | Description |
---|---|---|
portEnd |
integer (int32) minimum: 1maximum: 65535 |
The maximum port that is included in the range. It should be ranged from 1 to 65535, and be greater than or equal to portStart. |
portStart |
integer (int32) minimum: 1maximum: 65535 |
The minimum port that is included in the range. It should be ranged from 1 to 65535, and be less than or equal to portEnd. |
protocol |
The network protocol of the port. |
PowerState
Describes the Power State of the cluster
Name | Type | Description |
---|---|---|
code |
Tells whether the cluster is Running or Stopped |
Protocol
The network protocol of the port.
Value | Description |
---|---|
TCP |
TCP protocol. |
UDP |
UDP protocol. |
ScaleDownMode
Describes how VMs are added to or removed from Agent Pools. See billing states.
Value | Description |
---|---|
Delete |
Create new instances during scale up and remove instances during scale down. |
Deallocate |
Attempt to start deallocated instances (if they exist) during scale up and deallocate instances during scale down. |
ScaleProfile
Specifications on how to scale a VirtualMachines agent pool.
Name | Type | Description |
---|---|---|
manual |
Specifications on how to scale the VirtualMachines agent pool to a fixed size. |
ScaleSetEvictionPolicy
The Virtual Machine Scale Set eviction policy. The eviction policy specifies what to do with the VM when it is evicted. The default is Delete. For more information about eviction see spot VMs
Value | Description |
---|---|
Delete |
Nodes in the underlying Scale Set of the node pool are deleted when they're evicted. |
Deallocate |
Nodes in the underlying Scale Set of the node pool are set to the stopped-deallocated state upon eviction. Nodes in the stopped-deallocated state count against your compute quota and can cause issues with cluster scaling or upgrading. |
ScaleSetPriority
The Virtual Machine Scale Set priority.
Value | Description |
---|---|
Spot |
Spot priority VMs will be used. There is no SLA for spot nodes. See spot on AKS for more information. |
Regular |
Regular VMs will be used. |
SysctlConfig
Sysctl settings for Linux agent nodes.
Name | Type | Description |
---|---|---|
fsAioMaxNr |
integer (int32) |
Sysctl setting fs.aio-max-nr. |
fsFileMax |
integer (int32) |
Sysctl setting fs.file-max. |
fsInotifyMaxUserWatches |
integer (int32) |
Sysctl setting fs.inotify.max_user_watches. |
fsNrOpen |
integer (int32) |
Sysctl setting fs.nr_open. |
kernelThreadsMax |
integer (int32) |
Sysctl setting kernel.threads-max. |
netCoreNetdevMaxBacklog |
integer (int32) |
Sysctl setting net.core.netdev_max_backlog. |
netCoreOptmemMax |
integer (int32) |
Sysctl setting net.core.optmem_max. |
netCoreRmemDefault |
integer (int32) |
Sysctl setting net.core.rmem_default. |
netCoreRmemMax |
integer (int32) |
Sysctl setting net.core.rmem_max. |
netCoreSomaxconn |
integer (int32) |
Sysctl setting net.core.somaxconn. |
netCoreWmemDefault |
integer (int32) |
Sysctl setting net.core.wmem_default. |
netCoreWmemMax |
integer (int32) |
Sysctl setting net.core.wmem_max. |
netIpv4IpLocalPortRange |
string |
Sysctl setting net.ipv4.ip_local_port_range. |
netIpv4NeighDefaultGcThresh1 |
integer (int32) |
Sysctl setting net.ipv4.neigh.default.gc_thresh1. |
netIpv4NeighDefaultGcThresh2 |
integer (int32) |
Sysctl setting net.ipv4.neigh.default.gc_thresh2. |
netIpv4NeighDefaultGcThresh3 |
integer (int32) |
Sysctl setting net.ipv4.neigh.default.gc_thresh3. |
netIpv4TcpFinTimeout |
integer (int32) |
Sysctl setting net.ipv4.tcp_fin_timeout. |
netIpv4TcpKeepaliveProbes |
integer (int32) |
Sysctl setting net.ipv4.tcp_keepalive_probes. |
netIpv4TcpKeepaliveTime |
integer (int32) |
Sysctl setting net.ipv4.tcp_keepalive_time. |
netIpv4TcpMaxSynBacklog |
integer (int32) |
Sysctl setting net.ipv4.tcp_max_syn_backlog. |
netIpv4TcpMaxTwBuckets |
integer (int32) |
Sysctl setting net.ipv4.tcp_max_tw_buckets. |
netIpv4TcpTwReuse |
boolean |
Sysctl setting net.ipv4.tcp_tw_reuse. |
netIpv4TcpkeepaliveIntvl |
integer (int32) minimum: 10maximum: 90 |
Sysctl setting net.ipv4.tcp_keepalive_intvl. |
netNetfilterNfConntrackBuckets |
integer (int32) minimum: 65536maximum: 524288 |
Sysctl setting net.netfilter.nf_conntrack_buckets. |
netNetfilterNfConntrackMax |
integer (int32) minimum: 131072maximum: 2097152 |
Sysctl setting net.netfilter.nf_conntrack_max. |
vmMaxMapCount |
integer (int32) |
Sysctl setting vm.max_map_count. |
vmSwappiness |
integer (int32) |
Sysctl setting vm.swappiness. |
vmVfsCachePressure |
integer (int32) |
Sysctl setting vm.vfs_cache_pressure. |
UndrainableNodeBehavior
Defines the behavior for undrainable nodes during upgrade. The most common cause of undrainable nodes is Pod Disruption Budgets (PDBs), but other issues, such as pod termination grace period is exceeding the remaining per-node drain timeout or pod is still being in a running state, can also cause undrainable nodes.
Value | Description |
---|---|
Schedule |
AKS will mark the blocked nodes schedulable, but the blocked nodes are not upgraded. A best-effort attempt will be made to delete all surge nodes. The upgrade operation and the managed cluster will be in failed state if there are any blocked nodes. |
Cordon |
AKS will cordon the blocked nodes and replace them with surge nodes during upgrade. The blocked nodes will be cordoned and replaced by surge nodes. The blocked nodes will have label 'kubernetes.azure.com/upgrade-status:Quarantined'. A surge node will be retained for each blocked node. A best-effort attempt will be made to delete all other surge nodes. If there are enough surge nodes to replace blocked nodes, then the upgrade operation and the managed cluster will be in failed state. Otherwise, the upgrade operation and the managed cluster will be in canceled state. |
VirtualMachineNodes
Current status on a group of nodes of the same vm size.
Name | Type | Description |
---|---|---|
count |
integer (int32) |
Number of nodes. |
size |
string |
The VM size of the agents used to host this group of nodes. |
VirtualMachinesProfile
Specifications on VirtualMachines agent pool.
Name | Type | Description |
---|---|---|
scale |
Specifications on how to scale a VirtualMachines agent pool. |
WorkloadRuntime
Determines the type of workload a node can run.
Value | Description |
---|---|
OCIContainer |
Nodes will use Kubelet to run standard OCI container workloads. |
WasmWasi |
Nodes will use Krustlet to run WASM workloads using the WASI provider (Preview). |