Microsoft.Compute/virtualMachines/extensions' has incorrect segment lengths - azure

Question

I'm unable to deploy this NESTED template because of an Custom Script Extension (CompDesc) that I've added to it. I am prompted with the following error when trying to deploy:
Error: Code=InvalidTemplate; Message=Deployment template validation failed: 'The template resource 'CompDesc' for type 'Microsoft.Compute/virtualMachines/extensions' at line '207' and column '6' has incorrect segment lengths. A nested resource type must have identical number of segments as its resource name. A root resource type must have segment length one greater than its resource name. Please see https://aka.ms/arm-template/#resources for usage details.'.
As you can see it already has a DSC extension which I have tested and deployed perfectly fine, but I also need to add this CSE for a small .ps1 script.
I have checked out:
Azure website resource template error
and Set ARM Template Web appSetting
I have tried:
changing the name to 1 word
changing the type to 1 word
changing the name to [concat(parameters('vmName'),'/extension')]
changing the type to Microsoft.Compute/virtualMachines/extensions
nested the resource inside the VM resource, and then changed the name and type to one of the varieties I've tried
removed the CSE from the VM resource and placed it on its own (as it is now shown), and then changed the name and type to one of the varieties I've tried
I know it has something to do with the naming convention, but I'm unsure on how to fix it. Bear in mind, that this is a nested template. From what I read and understand from the error, nested templates must have identical segments as its resource name, which I've tried.
Please, any ideas?
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"adminPassword": {
"type": "securestring",
"metadata": {
"description": "Password for the Virtual Machine."
}
},
"adminUsername": {
"type": "string",
"minLength": 1,
"metadata": {
"description": "Username for the Virtual Machine."
}
},
"computerDescription": {
"type": "string",
"metadata": {
"description": "The description name of the VM."
}
},
"nicName": {
"type": "string",
"metadata": {
"description": "The name of the VM nic"
}
},
"nodeConfigurationName": {
"type": "string",
"metadata": {
"description": "The name of the node configuration, on the Azure Automation DSC pull server, that this node will be configured as"
}
},
"projectTag": {
"type": "string",
"metadata": {
"description": "name of the Project"
}
},
"registrationKey": {
"type": "securestring",
"metadata": {
"description": "Registration key to use to onboard to the Azure Automation DSC pull/reporting server"
}
},
"registrationUrl": {
"type": "string",
"metadata": {
"description": "The URL to register against the DSC automation server"
}
},
"sasToken": {
"type": "securestring",
"metadata": {
"description": "Generated SAS token to be used."
}
},
"virtualNetworkName": {
"type": "string",
"metadata": {
"description": "name of the vNet"
}
},
"vmName": {
"type": "string",
"defaultValue": "myVM",
"metadata": {
"description": "The name of the VM resource"
}
},
"windowsOSVersion": {
"type": "string",
"metadata": {
"description": "The Windows version for the VM. This will pick a fully patched image of this given Windows version. Allowed values: 2008-R2-SP1, 2012-Datacenter, 2012-R2-Datacenter."
}
}
},
"variables": {
// Configuration for the VM
"imagePublisher": "MicrosoftWindowsServer",
"imageOffer": "WindowsServer",
"vmSize": "Standard_A2",
"vhdStorageAccountName": "[concat('vhdstorage', uniqueString(resourceGroup().id))]",
"vhdStorageContainerName": "vhds",
"vhdStorageType": "Standard_LRS",
// Configuration for network
"publicIPAddressName": "myPublicIP",
"publicIPAddressType": "Dynamic",
"subnetRef": "[concat(variables('vnetId'), '/subnets/', variables('subnetName'))]",
"subnetName": "default",
"vnetId": "[resourceId(resourceGroup().name, 'Microsoft.Network/virtualNetworks', parameters('virtualNetworkName'))]",
// Configuration of the DSC
"allowModuleOverwrite": false,
"actionAfterReboot": "ContinueConfiguration",
"configurationFunction": "UpdateLCMforAAPull.ps1\\ConfigureLCMforAAPull",
"configurationMode": "ApplyAndAutoCorrect",
"configurationModeFrequencyMins": 15,
"modulesUrl": "[concat('REDACTED', parameters('sasToken'))]",
"refreshFrequencyMins": 30,
"rebootNodeIfNeeded": true,
"timestamp": "MM/dd/yyyy H:mm:ss tt"
},
"resources": [
{
"type": "Microsoft.Storage/storageAccounts",
"name": "[variables('vhdStorageAccountName')]",
"apiVersion": "2016-01-01",
"location": "[resourceGroup().location]",
"tags": {
"displayName": "StorageAccount"
},
"sku": {
"name": "[variables('vhdStorageType')]"
},
"kind": "Storage"
},
{
"apiVersion": "2016-03-30",
"type": "Microsoft.Network/publicIPAddresses",
"name": "[variables('publicIPAddressName')]",
"location": "[resourceGroup().location]",
"tags": {
"displayName": "PublicIPAddress"
},
"properties": {
"publicIPAllocationMethod": "[variables('publicIPAddressType')]"
}
},
{
"apiVersion": "2016-03-30",
"type": "Microsoft.Network/networkInterfaces",
"name": "[parameters('nicName')]",
"location": "[resourceGroup().location]",
"properties": {
"ipConfigurations": [
{
"name": "ipconfig",
"properties": {
"privateIPAllocationMethod": "Dynamic",
"subnet": {
"id": "[variables('subnetRef')]"
}
}
}
]
}
},
{
"apiVersion": "2017-03-30",
"type": "Microsoft.Compute/virtualMachines",
"name": "[parameters('vmName')]",
"location": "[resourceGroup().location]",
"tags": {
"displayName": "[concat(parameters('vmName'), parameters('projectTag'))]"
},
"dependsOn": [
"[resourceId('Microsoft.Storage/storageAccounts/', variables('vhdStorageAccountName'))]",
"[resourceId('Microsoft.Network/networkInterfaces/', parameters('nicName'))]"
],
"properties": {
"hardwareProfile": {
"vmSize": "[variables('vmSize')]"
},
"osProfile": {
"computerName": "[parameters('vmName')]",
"adminUsername": "[parameters('adminUsername')]",
"adminPassword": "[parameters('adminPassword')]"
},
"storageProfile": {
"imageReference": {
"publisher": "[variables('imagePublisher')]",
"offer": "[variables('imageOffer')]",
"sku": "[parameters('windowsOSVersion')]",
"version": "latest"
},
"osDisk": {
"createOption": "FromImage"
},
"dataDisks": [
{
"diskSizeGB": 1023,
"lun": 0,
"createOption": "Empty"
}
]
},
"networkProfile": {
"networkInterfaces": [
{
"id": "[resourceId('Microsoft.Network/networkInterfaces', parameters('nicName'))]"
}
]
},
"diagnosticsProfile": {
"bootDiagnostics": {
"enabled": true,
"storageUri": "[reference(resourceId('Microsoft.Storage/storageAccounts', variables('vhdStorageAccountName')), '2016-01-01').primaryEndpoints.blob]"
}
}
}
},
{
"name": "CompDesc",
"type": "extensions",
"location": "[resourceGroup().location]",
"apiVersion": "2016-03-30",
"dependsOn": [
"[resourceId('Microsoft.Compute/virtualMachines', parameters('vmName'))]"
],
"tags": {
"displayName": "CompDesc"
},
"properties": {
"publisher": "Microsoft.Compute",
"type": "CustomScriptExtension",
"typeHandlerVersion": "1.4",
"autoUpgradeMinorVersion": true,
"settings": {
"fileUris": [
"[concat('REDACTED', parameters('sasToken'))]"
],
"commandToExecute": "[concat('powershell -ExecutionPolicy Unrestricted -File compdesc.ps1', ' ', '\"', parameters('computerDescription'), '\"')]"
}
}
},
{
"type": "Microsoft.Compute/virtualMachines/extensions",
"name": "[concat(parameters('vmName'),'/Microsoft.Powershell.DSC')]",
"apiVersion": "2015-06-15",
"location": "[resourceGroup().location]",
"dependsOn": [
"[resourceId('Microsoft.Compute/virtualMachines', parameters('vmName'))]"
],
"properties": {
"publisher": "Microsoft.Powershell",
"type": "DSC",
"typeHandlerVersion": "2.19",
"autoUpgradeMinorVersion": true,
"protectedSettings": {
"Items": {
"registrationKeyPrivate": "[parameters('registrationKey')]"
}
},
"settings": {
"ModulesUrl": "[variables('modulesUrl')]",
"SasToken": "",
"ConfigurationFunction": "[variables('configurationFunction')]",
"Properties": [
{
"Name": "RegistrationKey",
"Value": {
"UserName": "PLACEHOLDER_DONOTUSE",
"Password": "PrivateSettingsRef:registrationKeyPrivate"
},
"TypeName": "System.Management.Automation.PSCredential"
},
{
"Name": "RegistrationUrl",
"Value": "[parameters('registrationUrl')]",
"TypeName": "System.String"
},
{
"Name": "NodeConfigurationName",
"Value": "[parameters('nodeConfigurationName')]",
"TypeName": "System.String"
},
{
"Name": "ConfigurationMode",
"Value": "[variables('configurationMode')]",
"TypeName": "System.String"
},
{
"Name": "ConfigurationModeFrequencyMins",
"Value": "[variables('configurationModeFrequencyMins')]",
"TypeName": "System.Int32"
},
{
"Name": "RefreshFrequencyMins",
"Value": "[variables('refreshFrequencyMins')]",
"TypeName": "System.Int32"
},
{
"Name": "RebootNodeIfNeeded",
"Value": "[variables('rebootNodeIfNeeded')]",
"TypeName": "System.Boolean"
},
{
"Name": "ActionAfterReboot",
"Value": "[variables('actionAfterReboot')]",
"TypeName": "System.String"
},
{
"Name": "AllowModuleOverwrite",
"Value": "[variables('allowModuleOverwrite')]",
"TypeName": "System.Boolean"
},
{
"Name": "Timestamp",
"Value": "[variables('timestamp')]",
"TypeName": "System.String"
}
]
}
}
}
]
}

Answer 1

My god, an oversight by myself. I forgot to re-upload the nested template to blob storage once I made my changes. So dumb.
Anyway, for those that want to know;
https://github.com/blumu/azure-content/blob/master/articles/resource-manager-common-deployment-errors.md