Creating AKS from ARM template

Question

Creating AKS from ARM template

Varma 1,435

I have created AKS manually, I saved the template below.

I will delete this AKS in a while, but I need to create after few days. so I just want to use template to avoid manual process. I think only need to change the AKS name, thats it.

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "managedClusters_AKS_name": {
            "defaultValue": "AKS",
            "type": "String"
        },
        "virtualNetworks_RG_vnet_externalid": {
            "defaultValue": "/subscriptions/9e6baf99-22ca-4234-948e-7d4a9f8ccd32/resourceGroups/RG/providers/Microsoft.Network/virtualNetworks/RG-vnet",
            "type": "String"
        },
        "publicIPAddresses_c23ff39a_0c2e_417d_b0fd_4641f3f20c8c_externalid": {
            "defaultValue": "/subscriptions/9e6baf99-22ca-4234-948e-7d4a9f8ccd32/resourceGroups/MC_RG_AKS_eastus/providers/Microsoft.Network/publicIPAddresses/c23ff39a-0c2e-417d-b0fd-4641f3f20c8c",
            "type": "String"
        },
        "userAssignedIdentities_AKS_agentpool_externalid": {
            "defaultValue": "/subscriptions/9e6baf99-22ca-4234-948e-7d4a9f8ccd32/resourceGroups/MC_RG_AKS_eastus/providers/Microsoft.ManagedIdentity/userAssignedIdentities/AKS-agentpool",
            "type": "String"
        }
    },
    "variables": {},
    "resources": [
        {
            "type": "Microsoft.ContainerService/managedClusters",
            "apiVersion": "2024-10-01",
            "name": "[parameters('managedClusters_AKS_name')]",
            "location": "eastus",
            "sku": {
                "name": "Base",
                "tier": "Free"
            },
            "identity": {
                "type": "SystemAssigned"
            },
            "properties": {
                "kubernetesVersion": "1.30.10",
                "dnsPrefix": "[concat(parameters('managedClusters_AKS_name'), '-dns')]",
                "agentPoolProfiles": [
                    {
                        "name": "agentpool",
                        "count": 1,
                        "vmSize": "Standard_D2s_v3",
                        "osDiskSizeGB": 128,
                        "osDiskType": "Managed",
                        "kubeletDiskType": "OS",
                        "vnetSubnetID": "[concat(parameters('virtualNetworks_RG_vnet_externalid'), '/subnets/default')]",
                        "maxPods": 110,
                        "type": "VirtualMachineScaleSets",
                        "availabilityZones": [
                            "1",
                            "2",
                            "3"
                        ],
                        "maxCount": 3,
                        "minCount": 1,
                        "enableAutoScaling": true,
                        "scaleDownMode": "Delete",
                        "powerState": {
                            "code": "Running"
                        },
                        "orchestratorVersion": "1.30.10",
                        "enableNodePublicIP": false,
                        "mode": "System",
                        "osType": "Linux",
                        "osSKU": "Ubuntu",
                        "upgradeSettings": {
                            "maxSurge": "10%"
                        },
                        "enableFIPS": false,
                        "securityProfile": {
                            "enableVTPM": false,
                            "enableSecureBoot": false
                        }
                    }
                ],
                "windowsProfile": {
                    "adminUsername": "azureuser",
                    "enableCSIProxy": true
                },
                "servicePrincipalProfile": {
                    "clientId": "msi"
                },
                "addonProfiles": {
                    "azureKeyvaultSecretsProvider": {
                        "enabled": false
                    },
                    "azurepolicy": {
                        "enabled": false
                    }
                },
                "nodeResourceGroup": "[concat('MC_RG_', parameters('managedClusters_AKS_name'), '_eastus')]",
                "enableRBAC": true,
                "supportPlan": "KubernetesOfficial",
                "networkProfile": {
                    "networkPlugin": "azure",
                    "networkPluginMode": "overlay",
                    "networkPolicy": "calico",
                    "networkDataplane": "azure",
                    "loadBalancerSku": "Standard",
                    "loadBalancerProfile": {
                        "managedOutboundIPs": {
                            "count": 1
                        },
                        "effectiveOutboundIPs": [
                            {
                                "id": "[parameters('publicIPAddresses_c23ff39a_0c2e_417d_b0fd_4641f3f20c8c_externalid')]"
                            }
                        ],
                        "backendPoolType": "nodeIPConfiguration"
                    },
                    "podCidr": "10.244.0.0/16",
                    "serviceCidr": "10.0.0.0/16",
                    "dnsServiceIP": "10.0.0.10",
                    "outboundType": "loadBalancer",
                    "podCidrs": [
                        "10.244.0.0/16"
                    ],
                    "serviceCidrs": [
                        "10.0.0.0/16"
                    ],
                    "ipFamilies": [
                        "IPv4"
                    ]
                },
                "identityProfile": {
                    "kubeletidentity": {
                        "resourceId": "[parameters('userAssignedIdentities_AKS_agentpool_externalid')]",
                        "clientId": "02f7a79c-a15a-48cb-a7ce-a2ea7f8e6a74",
                        "objectId": "76ce1d3b-39e3-4a94-896d-006775a7db75"
                    }
                },
                "autoScalerProfile": {
                    "balance-similar-node-groups": "false",
                    "daemonset-eviction-for-empty-nodes": false,
                    "daemonset-eviction-for-occupied-nodes": true,
                    "expander": "random",
                    "ignore-daemonsets-utilization": false,
                    "max-empty-bulk-delete": "10",
                    "max-graceful-termination-sec": "600",
                    "max-node-provision-time": "15m",
                    "max-total-unready-percentage": "45",
                    "new-pod-scale-up-delay": "0s",
                    "ok-total-unready-count": "3",
                    "scale-down-delay-after-add": "10m",
                    "scale-down-delay-after-delete": "10s",
                    "scale-down-delay-after-failure": "3m",
                    "scale-down-unneeded-time": "10m",
                    "scale-down-unready-time": "20m",
                    "scale-down-utilization-threshold": "0.5",
                    "scan-interval": "10s",
                    "skip-nodes-with-local-storage": "false",
                    "skip-nodes-with-system-pods": "true"
                },
                "autoUpgradeProfile": {
                    "upgradeChannel": "patch",
                    "nodeOSUpgradeChannel": "NodeImage"
                },
                "disableLocalAccounts": false,
                "securityProfile": {
                    "imageCleaner": {
                        "enabled": true,
                        "intervalHours": 168
                    },
                    "workloadIdentity": {
                        "enabled": true
                    }
                },
                "storageProfile": {
                    "diskCSIDriver": {
                        "enabled": true
                    },
                    "fileCSIDriver": {
                        "enabled": true
                    },
                    "snapshotController": {
                        "enabled": true
                    }
                },
                "oidcIssuerProfile": {
                    "enabled": true
                },
                "workloadAutoScalerProfile": {},
                "metricsProfile": {
                    "costAnalysis": {
                        "enabled": false
                    }
                }
            }
        },
        {
            "type": "Microsoft.ContainerService/managedClusters/agentPools",
            "apiVersion": "2024-10-01",
            "name": "[concat(parameters('managedClusters_AKS_name'), '/agentpool')]",
            "dependsOn": [
                "[resourceId('Microsoft.ContainerService/managedClusters', parameters('managedClusters_AKS_name'))]"
            ],
            "properties": {
                "count": 1,
                "vmSize": "Standard_D2s_v3",
                "osDiskSizeGB": 128,
                "osDiskType": "Managed",
                "kubeletDiskType": "OS",
                "vnetSubnetID": "[concat(parameters('virtualNetworks_RG_vnet_externalid'), '/subnets/default')]",
                "maxPods": 110,
                "type": "VirtualMachineScaleSets",
                "availabilityZones": [
                    "1",
                    "2",
                    "3"
                ],
                "maxCount": 3,
                "minCount": 1,
                "enableAutoScaling": true,
                "scaleDownMode": "Delete",
                "powerState": {
                    "code": "Running"
                },
                "orchestratorVersion": "1.30.10",
                "enableNodePublicIP": false,
                "mode": "System",
                "osType": "Linux",
                "osSKU": "Ubuntu",
                "upgradeSettings": {
                    "maxSurge": "10%"
                },
                "enableFIPS": false,
                "securityProfile": {
                    "enableVTPM": false,
                    "enableSecureBoot": false
                }
            }
        },
        {
            "type": "Microsoft.ContainerService/managedClusters/maintenanceConfigurations",
            "apiVersion": "2024-10-01",
            "name": "[concat(parameters('managedClusters_AKS_name'), '/', parameters('managedClusters_AKS_name'), 'ManagedAutoUpgradeSchedule')]",
            "dependsOn": [
                "[resourceId('Microsoft.ContainerService/managedClusters', parameters('managedClusters_AKS_name'))]"
            ],
            "properties": {
                "maintenanceWindow": {
                    "schedule": {
                        "weekly": {
                            "intervalWeeks": 1,
                            "dayOfWeek": "Sunday"
                        }
                    },
                    "durationHours": 4,
                    "utcOffset": "+00:00",
                    "startDate": "2025-04-06",
                    "startTime": "00:00"
                }
            }
        },
        {
            "type": "Microsoft.ContainerService/managedClusters/maintenanceConfigurations",
            "apiVersion": "2024-10-01",
            "name": "[concat(parameters('managedClusters_AKS_name'), '/', parameters('managedClusters_AKS_name'), 'ManagedNodeOSUpgradeSchedule')]",
            "dependsOn": [
                "[resourceId('Microsoft.ContainerService/managedClusters', parameters('managedClusters_AKS_name'))]"
            ],
            "properties": {
                "maintenanceWindow": {
                    "schedule": {
                        "weekly": {
                            "intervalWeeks": 1,
                            "dayOfWeek": "Sunday"
                        }
                    },
                    "durationHours": 4,
                    "utcOffset": "+00:00",
                    "startDate": "2025-04-06",
                    "startTime": "00:00"
                }
            }
        }
    ]
}

Can you please suggest high level steps how it can be done. Thank you

1 answer

Your answer

Answer 1

Luke Murray 11,351 MVP

Hi, you can go to: Custom deployment

Select Build your own, and you can upload or add in ARM template. Another thing you can do, if you still have the Resource Group that the AKS cluster was in, was go to Deployments pane and redeploy from there.

Future recommendations would be to look at IaC (Infrastructure as Code) with Terraform or Bicep and deploy from there. Deployment stacks might be of interest cause you can delete and use that to redeploy within the portal.

Varma 1,435 Reputation points

2025-04-05T05:16:44.11+00:00

Hi Luke,

I am following custom deployment you have shared, I selected AKS stack, but I am seeing it is asking for DNS name, which I dont have and i dont want to i give, I could create AKS manually earlier with out dns.

Please suggest which stack I should select.
Varma 1,435 Reputation points

2025-04-05T05:17:20.9066667+00:00

Hi Luke,

I am following custom deployment you have shared, I selected AKS stack, but I am seeing it is asking for DNS name, which I dont have and i dont want to i give, I could create AKS manually earlier with out dns.

Please suggest which stack I should select.

0 commentsNo commentsReport a concern
Vinod Pittala 1,420 Reputation points Microsoft External Staff

2025-04-16T06:20:26.89+00:00

Hello Varma,

Apologies for the delay in my response.

I understand that you are facing issue with DNS prefix name while deploying the AKS using the ARM templet.

The prefix helps to identify different hosts or services within the same domain. For instance, "mail.example.com" refers to a mail server, while "ftp.example.com" refers to a file transfer server within the same domain.

please find below document for your reference

https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/plan/assigning-domain-names

So, to have the same DNS prefix, you can insert the prefix value in the ARM template as shown below.

After adding the DNS prefix to the template, it will automatically take it. so that you can see the DNS Prefix in the deployment page.

Please try the same steps and let me know the results.

If the provided solution works for your query, please do not forget to click Upvote Button. this can be beneficial to other community members.it would be greatly appreciated and helpful to others

Thanks

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Creating AKS from ARM template

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