Enable Azure VM extensions by using an ARM template

Artikkel
01/16/2025

This article shows you how to use an Azure Resource Manager template (ARM template) to deploy Azure virtual machine (VM) extensions that are supported by Azure Arc-enabled servers.

You can add VM extensions to an ARM template and execute them with the deployment of the template. With the VM extensions supported by Azure Arc-enabled servers, you can deploy the extensions on Linux or Windows machines by using Azure PowerShell. Each sample that follows includes a template file and a parameter file with sample values to provide to the template.

Note

Although you can batch multiple extensions and process them together, they're installed serially. After installation of the first extension installation is complete, the next extension is installed.

Azure Arc-enabled servers doesn't support deploying and managing VM extensions to Azure virtual machines. For Azure VMs, see the VM extension overview article.

Deploy the Log Analytics VM extension

To easily deploy the Log Analytics agent, use one of the following samples to install the agent on either Linux or Windows.

Template file for Linux

{
    "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vmName": {
            "type": "string"
        },
        "location": {
            "type": "string"
        },
        "workspaceId": {
            "type": "string"
        },
        "workspaceKey": {
            "type": "string"
        }
    },
    "resources": [
        {
            "name": "[concat(parameters('vmName'),'/OMSAgentForLinux')]",
            "type": "Microsoft.HybridCompute/machines/extensions",
            "location": "[parameters('location')]",
            "apiVersion": "2022-03-10",
            "properties": {
                "publisher": "Microsoft.EnterpriseCloud.Monitoring",
                "type": "OmsAgentForLinux",
                "enableAutomaticUpgrade": true,
                "settings": {
                    "workspaceId": "[parameters('workspaceId')]"
                },
                "protectedSettings": {
                    "workspaceKey": "[parameters('workspaceKey')]"
                }
            }
        }
    ]
}

Template file for Windows

{
    "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vmName": {
            "type": "string"
        },
        "location": {
            "type": "string"
        },
        "workspaceId": {
            "type": "string"
        },
        "workspaceKey": {
            "type": "string"
        }
    },
    "resources": [
        {
            "name": "[concat(parameters('vmName'),'/MicrosoftMonitoringAgent')]",
            "type": "Microsoft.HybridCompute/machines/extensions",
            "location": "[parameters('location')]",
            "apiVersion": "2022-03-10",
            "properties": {
                "publisher": "Microsoft.EnterpriseCloud.Monitoring",
                "type": "MicrosoftMonitoringAgent",
                "autoUpgradeMinorVersion": true,
                "enableAutomaticUpgrade": true,
                "settings": {
                    "workspaceId": "[parameters('workspaceId')]"
                },
                "protectedSettings": {
                    "workspaceKey": "[parameters('workspaceKey')]"
                }
            }
        }
    ]
}

Parameter file

{
    "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vmName": {
            "value": "<vmName>"
        },
        "location": {
            "value": "<region>"
        },
        "workspaceId": {
            "value": "<MyWorkspaceID>"
        },
        "workspaceKey": {
            "value": "<MyWorkspaceKey>"
        }
    }
}

Save the template and parameter file to disk, and edit the parameter file with the appropriate values for your deployment. You can then install the extension on all the connected machines within a resource group by using the following command. The command uses the TemplateFile parameter to specify the template and the TemplateParameterFile parameter to specify a file that contains parameters and parameter values.

New-AzResourceGroupDeployment -ResourceGroupName "ContosoEngineering" -TemplateFile "D:\Azure\Templates\LogAnalyticsAgent.json" -TemplateParameterFile "D:\Azure\Templates\LogAnalyticsAgentParms.json"

Deploy the Custom Script Extension

To use the Custom Script Extension, run one of the following samples for Linux and Windows. If you're unfamiliar with the Custom Script Extension, see Custom Script Extension for Linux or Custom Script Extension for Windows. There are few differing characteristics that you should understand when you're using this extension with hybrid machines:

The list of supported operating systems with the Azure VM Custom Script Extension is not applicable to Azure Arc-enabled servers. See the list of supported operating systems for Azure Arc-enabled servers.
Configuration details regarding Azure virtual machine scale sets or VMs created through the classic deployment model are not applicable.
If your machines need to download a script externally and can communicate only through a proxy server, you need to configure the Connected Machine agent to set the proxy server's environmental variable.

The Custom Script Extension configuration specifies things like script location and the command to be run. This configuration is specified in the following templates.

Template file for Linux

{
  "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "vmName": {
      "type": "string"
    },
    "location": {
      "type": "string"
    },
    "fileUris": {
      "type": "array"
    },
    "commandToExecute": {
      "type": "securestring"
    }
  },
  "resources": [
    {
      "name": "[concat(parameters('vmName'),'/CustomScript')]",
      "type": "Microsoft.HybridCompute/machines/extensions",
      "location": "[parameters('location')]",
      "apiVersion": "2022-03-10",
      "properties": {
        "publisher": "Microsoft.Azure.Extensions",
        "type": "CustomScript",
        "autoUpgradeMinorVersion": true,
        "settings": {},
        "protectedSettings": {
          "commandToExecute": "[parameters('commandToExecute')]",
          "fileUris": "[parameters('fileUris')]"
        }
      }
    }
  ]
}

Template file for Windows

{
    "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vmName": {
            "type": "string"
        },
        "location": {
            "type": "string"
        },
        "fileUris": {
            "type": "string"
        },
        "arguments": {
            "type": "securestring",
            "defaultValue": " "
        }
    },
    "variables": {
        "UriFileNamePieces": "[split(parameters('fileUris'), '/')]",
        "firstFileNameString": "[variables('UriFileNamePieces')[sub(length(variables('UriFileNamePieces')), 1)]]",
        "firstFileNameBreakString": "[split(variables('firstFileNameString'), '?')]",
        "firstFileName": "[variables('firstFileNameBreakString')[0]]"
    },
    "resources": [
        {
            "name": "[concat(parameters('vmName'),'/CustomScriptExtension')]",
            "type": "Microsoft.HybridCompute/machines/extensions",
            "location": "[parameters('location')]",
            "apiVersion": "2022-03-10",
            "properties": {
                "publisher": "Microsoft.Compute",
                "type": "CustomScriptExtension",
                "autoUpgradeMinorVersion": true,
                "settings": {
                    "fileUris": "[split(parameters('fileUris'), ' ')]"
                },
                "protectedSettings": {
                    "commandToExecute": "[concat ('powershell -ExecutionPolicy Unrestricted -File ', variables('firstFileName'), ' ', parameters('arguments'))]"
                }
            }
        }
    ]
}

Parameter file

{
  "$schema": "https://schema.management.azure.com/schemas/0.1.2-preview/CreateUIDefinition.MultiVm.json#",
  "handler": "Microsoft.Azure.CreateUIDef",
  "version": "0.1.2-preview",
  "parameters": {
    "basics": [
      {}
    ],
    "steps": [
      {
        "name": "customScriptExt",
        "label": "Add Custom Script Extension",
        "elements": [
          {
            "name": "fileUris",
            "type": "Microsoft.Common.FileUpload",
            "label": "Script files",
            "toolTip": "The script files that will be downloaded to the virtual machine.",
            "constraints": {
              "required": false
            },
            "options": {
              "multiple": true,
              "uploadMode": "url"
            },
            "visible": true
          },
          {
            "name": "commandToExecute",
            "type": "Microsoft.Common.TextBox",
            "label": "Command",
            "defaultValue": "sh script.sh",
            "toolTip": "The command to execute, for example: sh script.sh",
            "constraints": {
              "required": true
            },
            "visible": true
          }
        ]
      }
    ],
    "outputs": {
      "vmName": "[vmName()]",
      "location": "[location()]",
      "fileUris": "[steps('customScriptExt').fileUris]",
      "commandToExecute": "[steps('customScriptExt').commandToExecute]"
    }
  }
}

Deploy the Dependency agent extension

To use the Azure Monitor Dependency agent extension, run one of the following samples for Linux and Windows. If you're unfamiliar with the Dependency agent, see Overview of Azure Monitor agents.

Template file for Linux

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "vmName": {
      "type": "string",
      "metadata": {
        "description": "The name of existing Linux machine."
      }
    }
  },
  "resources": [
    {
      "type": "Microsoft.HybridCompute/machines/extensions",
      "name": "[concat(parameters('vmName'),'/DAExtension')]",
      "apiVersion": "2022-03-10",
      "location": "[resourceGroup().location]",
      "dependsOn": [
      ],
      "properties": {
        "publisher": "Microsoft.Azure.Monitoring.DependencyAgent",
        "type": "DependencyAgentLinux",
        "enableAutomaticUpgrade": true
      }
    }
  ],
  "outputs": {
  }
}

Template file for Windows

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "vmName": {
      "type": "string",
      "metadata": {
        "description": "The name of existing Windows machine."
      }
    }
  },
  "resources": [
    {
      "type": "Microsoft.HybridCompute/machines/extensions",
      "name": "[concat(parameters('vmName'),'/DAExtension')]",
      "apiVersion": "2022-03-10",
      "location": "[resourceGroup().location]",
      "dependsOn": [
      ],
      "properties": {
        "publisher": "Microsoft.Azure.Monitoring.DependencyAgent",
        "type": "DependencyAgentWindows",
        "enableAutomaticUpgrade": true
      }
    }
  ],
  "outputs": {
  }
}

Template deployment

Save the template file to disk. You can then deploy the extension to the connected machine by using the following command:

New-AzResourceGroupDeployment -ResourceGroupName "ContosoEngineering" -TemplateFile "D:\Azure\Templates\DependencyAgent.json"

Deploy the Azure Key Vault VM extension (preview)

The following JSON shows the schema for the Key Vault VM extension (preview). The extension does not require protected settings, because all its settings are considered public information. The extension requires a list of monitored certificates, the polling frequency, and the destination certificate store.

Template file for Linux

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vmName": {
            "type": "string"
        },
        "location": {
            "type": "string"
        },
        "autoUpgradeMinorVersion":{
            "type": "bool"
        },
        "pollingIntervalInS":{
          "type": "int"
        },
        "certificateStoreName":{
          "type": "string"
        },
        "certificateStoreLocation":{
          "type": "string"
        },
        "observedCertificates":{
          "type": "string"
        },
        "msiEndpoint":{
          "type": "string"
        },
        "msiClientId":{
          "type": "string"
        }
},
"resources": [
   {
      "type": "Microsoft.HybridCompute/machines/extensions",
      "name": "[concat(parameters('vmName'),'/KVVMExtensionForLinux')]",
      "apiVersion": "2022-03-10",
      "location": "[parameters('location')]",
      "properties": {
      "publisher": "Microsoft.Azure.KeyVault",
      "type": "KeyVaultForLinux",
      "enableAutomaticUpgrade": true,
      "settings": {
          "secretsManagementSettings": {
          "pollingIntervalInS": <polling interval in seconds, e.g. "3600">,
          "certificateStoreName": <ignored on linux>,
          "certificateStoreLocation": <disk path where certificate is stored, default: "/var/lib/waagent/Microsoft.Azure.KeyVault">,
          "observedCertificates": <list of KeyVault URIs representing monitored certificates, e.g.: "https://myvault.vault.azure.net/secrets/mycertificate"
          },
          "authenticationSettings": {
                "msiEndpoint":  "http://localhost:40342/metadata/identity"
        }
      }
    }
  }
 ]
}

Template file for Windows

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vmName": {
            "type": "string"
        },
        "location": {
            "type": "string"
        },
        "autoUpgradeMinorVersion":{
            "type": "bool"
        },
        "pollingIntervalInS":{
          "type": "int"
        },
        "certificateStoreName":{
          "type": "string"
        },
        "linkOnRenewal":{
          "type": "bool"
        },
        "certificateStoreLocation":{
          "type": "string"
        },
        "requireInitialSync":{
          "type": "bool"
        },
        "observedCertificates":{
          "type": "string"
        },
        "msiEndpoint":{
          "type": "string"
        },
        "msiClientId":{
          "type": "string"
        }
},
"resources": [
   {
      "type": "Microsoft.HybridCompute/machines/extensions",
      "name": "[concat(parameters('vmName'),'/KVVMExtensionForWindows')]",
      "apiVersion": "2022-03-10",
      "location": "[parameters('location')]",
      "properties": {
      "publisher": "Microsoft.Azure.KeyVault",
      "type": "KeyVaultForWindows",
      "enableAutomaticUpgrade": true,
      "settings": {
        "secretsManagementSettings": {
          "pollingIntervalInS": "3600",
          "certificateStoreName": <certificate store name, e.g.: "MY">,
          "linkOnRenewal": <Only Windows. This feature ensures s-channel binding when certificate renews, without necessitating a re-deployment.  e.g.: false>,
          "certificateStoreLocation": <certificate store location, currently it works locally only e.g.: "LocalMachine">,
          "requireInitialSync": <initial synchronization of certificates e.g.: true>,
          "observedCertificates": <list of KeyVault URIs representing monitored certificates, e.g.: "https://myvault.vault.azure.net"
        },
        "authenticationSettings": {
                "msiEndpoint": "http://localhost:40342/metadata/identity"
        }
      }
    }
  }
 ]
}

Note

Your observed certificate URLs should be of the form https://myVaultName.vault.azure.net/secrets/myCertName. The reason is that the /secrets path returns the full certificate, including the private key, whereas the /certificates path doesn't. You can find more information about certificates in Azure Key Vault keys, secrets, and certificates overview.

Template deployment

Save the template file to disk. You can then deploy the extension to the connected machine by using the following command.

Note

The VM extension would require a system-assigned identity to be assigned to authenticate to Key Vault. See Authenticate against Azure resources with Azure Arc-enabled servers for Linux and Windows Azure Arc-enabled servers.

New-AzResourceGroupDeployment -ResourceGroupName "ContosoEngineering" -TemplateFile "D:\Azure\Templates\KeyVaultExtension.json"

You can deploy, manage, and remove VM extensions by using Azure PowerShell, the Azure portal, or the Azure CLI.
You can find troubleshooting information in the guide for troubleshooting VM extensions.

Del via

Enable Azure VM extensions by using an ARM template

Deploy the Log Analytics VM extension

Template file for Linux

Template file for Windows

Parameter file

Deploy the Custom Script Extension

Template file for Linux

Template file for Windows

Parameter file

Deploy the Dependency agent extension

Template file for Linux

Template file for Windows

Template deployment

Deploy the Azure Key Vault VM extension (preview)

Template file for Linux

Template file for Windows

Template deployment

Tilbakemeldinger

Flere ressurser

Del via

Enable Azure VM extensions by using an ARM template

Deploy the Log Analytics VM extension

Template file for Linux

Template file for Windows

Parameter file

Deploy the Custom Script Extension

Template file for Linux

Template file for Windows

Parameter file

Deploy the Dependency agent extension

Template file for Linux

Template file for Windows

Template deployment

Deploy the Azure Key Vault VM extension (preview)

Template file for Linux

Template file for Windows

Template deployment

Related content

Tilbakemeldinger

Flere ressurser