Automation Account Deployment Failed - Model Cannot be null

Question

Hi I am using ARM template provisoning an Automation Account. I don't have enough permission, so when I test to create Automation account from the portal, the 'run as an account' session is grayed out, but I am able to create the account.

However, when I try to provision by ARM template (found it from the MS website), I cannot deploy it, it keeps telling me,
"details": [
{
"code": "BadRequest",
"message": "{\"Message\":\"Model cannot be null.\"}"
}

Is that caused by my permission issue? And what model does it refer to, cannot find anything online yet? Thank you

Answer 1

"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"tags": {
"type": "object",
"metadata": {
"description": "An object containing tags that will be applied to the Storage Account"
}
},
"location": {
"type": "string",
"metadata": {
"description": "A valid Azure location (region)"
}
},
"automationAccountSku": {
"type": "object",
"metadata": {
"description": "An object containing the sku details applied to the storage account"
}
},
"automationAccountName": {
"type": "string",
"metadata": {
"description": "Name of the automation account"
}
},
"PowerShellRunbookName": {
"type": "string",
"metadata": {
"description": "Name of the PowerShell Runbook"
}
},
"logResourceGroupName": {
"type": "string",
"metadata": {
"description": "Resource Group that contains the log resources"
}
},
"logStorageAccountName": {
"type": "string",
"metadata": {
"description": "Stroage Account that contains the resource logs"
}
},
"logAnalyticsName": {
"type": "string",
"metadata": {
"description": "Name of the Log Analytics resource"
}
}
},
"variables": {},
"resources": [
{
"type": "Microsoft.Automation/automationAccounts",
"apiVersion": "2020-01-13-preview",
"name": "[parameters('automationAccountName')]",
"location": "[parameters('location')]",
"tags": "[parameters('tags')]",
"identity": {
"type": "SystemAssigned"
},
"properties": {
"sku": {
"name": "[parameters('automationAccountSku')]"
},
"encryption": {
"keySource": "Microsoft.Automation",
"identity": {}
}
},
"resources": [
{
"type": "runbooks",
"apiVersion": "2020-01-13-preview",
"name": "[parameters('PowerShellRunbookName')]",
"location": "[parameters('location')]",
"dependsOn": ["[parameters('automationAccountName')]"],
"properties": {
"runbookType": "PowerShell",
"logProgress": "false",
"logVerbose": "false"
}
}
]
},
{
"type": "Microsoft.Automation/automationAccounts/providers/diagnosticSettings",
"apiVersion": "2017-05-01-preview",
"name": "[concat(parameters('automationAccountName'), '/Microsoft.Insights/', 'resourceLogs')]",
"dependsOn": [
"[resourceId('Microsoft.Automation/automationAccounts', parameters('automationAccountName'))]"
],
"properties": {
"storageAccountId": "[concat('/subscriptions/',subscription().subscriptionId,'/resourceGroups/',parameters('logResourceGroupName'),'/providers/Microsoft.Storage/storageAccounts/', parameters('logStorageAccountName'))]",
"workspaceId": "[concat('/subscriptions/',subscription().subscriptionId,'/resourceGroups/',parameters('logResourceGroupName'),'/providers/microsoft.operationalinsights/workspaces/', parameters('logAnalyticsName'))]",
"logs": [
{
"category": "AutomationAccount",
"enabled": true
}
],
"metrics": [
{
"category": "AllMetrics",
"enabled": true
}
]
}
}
]
}

Answer 2

May be try to remove the part below as I am not sure if you can create runbook without any code.
When you deploy template you can see on which resource it fails so you can pinpoint to which part of the code is the failure. There is no linking automation account to Log Analytics workspace, you only send logs to Storage account and log analytics workspace. Linking happens trough a resource inside Log Analytics workspace.

"resources": [
            {
                "type": "runbooks",
                "apiVersion": "2020-01-13-preview",
                "name": "[parameters('PowerShellRunbookName')]",
                "location": "[parameters('location')]",
                "dependsOn": [ "[parameters('automationAccountName')]" ],
                "properties": {
                    "runbookType": "PowerShell",
                    "logProgress": "false",
                    "logVerbose": "false"
                }
            }
        ]