Deploy Spot VMs using a Resource Manager template

Using Spot VMs allows you to take advantage of our unused capacity at a significant cost savings. At any point in time when Azure needs the capacity back, the Azure infrastructure will evict Spot VMs. Therefore, Spot VMs are great for workloads that can handle interruptions like batch processing jobs, dev/test environments, large compute workloads, and more.

Pricing for Spot VMs is variable, based on region and SKU. For more information, see VM pricing for Linux and Windows.

You have option to set a max price you are willing to pay, per hour, for the VM. The max price for a Spot VM can be set in US dollars (USD), using up to 5 decimal places. For example, the value 0.98765would be a max price of $0.98765 USD per hour. If you set the max price to be -1, the VM won't be evicted based on price. The price for the VM will be the current price for Spot or the price for a standard VM, which ever is less, as long as there is capacity and quota available. For more information about setting the max price, see Spot VMs - Pricing.

Use a template

For Spot template deployments, use"apiVersion": "2019-03-01" or later. Add the priority, evictionPolicy and billingProfile properties to in your template:

"priority": "Spot",
"evictionPolicy": "Deallocate",
"billingProfile": {
    "maxPrice": -1
}

Here is a sample template with the added properties for a Spot VM. Replace the resource names with your own and <password> with a password for the local administrator account on the VM.

{
    "$schema": "http://schema.management.azure.com/schemas/2019-03-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
    },
    "variables": {
        "vnetId": "/subscriptions/ec9fcd04-e188-48b9-abfc-abcd515f1836/resourceGroups/spotVM/providers/Microsoft.Network/virtualNetworks/spotVM",
        "subnetName": "default",
        "networkInterfaceName": "spotVMNIC",
        "publicIpAddressName": "spotVM-ip",
        "publicIpAddressType": "Dynamic",
        "publicIpAddressSku": "Basic",
        "virtualMachineName": "spotVM",
        "osDiskType": "Premium_LRS",
        "virtualMachineSize": "Standard_D2s_v3",
        "adminUsername": "azureuser",
        "adminPassword": "<password>",
        "diagnosticsStorageAccountName": "diagstoragespot2019",
        "diagnosticsStorageAccountId": "Microsoft.Storage/storageAccounts/diagstoragespot2019",
        "diagnosticsStorageAccountType": "Standard_LRS",
        "diagnosticsStorageAccountKind": "Storage",
        "subnetRef": "[concat(variables('vnetId'), '/subnets/', variables('subnetName'))]"
    },
    "resources": [
        {
            "name": "spotVM",
            "type": "Microsoft.Network/networkInterfaces",
            "apiVersion": "2019-03-01",
            "location": "eastus",
            "dependsOn": [
                "[concat('Microsoft.Network/publicIpAddresses/', variables('publicIpAddressName'))]"
            ],
            "properties": {
                "ipConfigurations": [
                    {
                        "name": "ipconfig1",
                        "properties": {
                            "subnet": {
                                "id": "[variables('subnetRef')]"
                            },
                            "privateIPAllocationMethod": "Dynamic",
                            "publicIpAddress": {
                                "id": "[resourceId(resourceGroup().name, 'Microsoft.Network/publicIpAddresses', variables('publicIpAddressName'))]"
                            }
                        }
                    }
                ]
            }
        },
        {
            "name": "[variables('publicIpAddressName')]",
            "type": "Microsoft.Network/publicIpAddresses",
            "apiVersion": "2019-02-01",
            "location": "eastus",
            "properties": {
                "publicIpAllocationMethod": "[variables('publicIpAddressType')]"
            },
            "sku": {
                "name": "[variables('publicIpAddressSku')]"
            }
        },
        {
            "name": "[variables('virtualMachineName')]",
            "type": "Microsoft.Compute/virtualMachines",
            "apiVersion": "2019-03-01",
            "location": "eastus",
            "dependsOn": [
                "[concat('Microsoft.Network/networkInterfaces/', variables('networkInterfaceName'))]",
                "[concat('Microsoft.Storage/storageAccounts/', variables('diagnosticsStorageAccountName'))]"
            ],
            "properties": {
                "hardwareProfile": {
                    "vmSize": "[variables('virtualMachineSize')]"
                },
                "storageProfile": {
                    "osDisk": {
                        "createOption": "fromImage",
                        "managedDisk": {
                            "storageAccountType": "[variables('osDiskType')]"
                        }
                    },
                    "imageReference": {
                        "publisher": "Canonical",
                        "offer": "UbuntuServer",
                        "sku": "18.04-LTS",
                        "version": "latest"
                    }
                },
                "networkProfile": {
                    "networkInterfaces": [
                        {
                            "id": "[resourceId('Microsoft.Network/networkInterfaces', variables('networkInterfaceName'))]"
                        }
                    ]
                },
                "osProfile": {
                    "computerName": "[variables('virtualMachineName')]",
                    "adminUsername": "[variables('adminUsername')]",
                    "adminPassword": "[variables('adminPassword')]"
                },
                "diagnosticsProfile": {
                    "bootDiagnostics": {
                        "enabled": true,
                        "storageUri": "[concat('https://', variables('diagnosticsStorageAccountName'), '.blob.core.windows.net/')]"
                    }
                },
                "priority": "Spot",
                "evictionPolicy": "Deallocate",
                "billingProfile": {
                    "maxPrice": -1
                }
            }
        },
        {
            "name": "[variables('diagnosticsStorageAccountName')]",
            "type": "Microsoft.Storage/storageAccounts",
            "apiVersion": "2019-04-01",
            "location": "eastus",
            "properties": {},
            "kind": "[variables('diagnosticsStorageAccountKind')]",
            "sku": {
                "name": "[variables('diagnosticsStorageAccountType')]"
            }
        }
    ],
    "outputs": {
        "adminUsername": {
            "type": "string",
            "value": "[variables('adminUsername')]"
        }
    }
}

Next steps

You can also create a Spot VM using Azure PowerShell or the Azure CLI.

If you encounter an error, see Error codes.