BasicStorageWithParameterAndVariable.json

{
    "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "resourcesPrefix": {
            "type": "string",
            "metadata": {
                "description": "The prefix for all resources in the template"
            }
        }
    },
    "variables": {
        "storageAccountName": "[concat(parameters('resourcesPrefix'), 'storage99')]",
        "departmentTag": "Sales"
    },
    "resources": [
        {
            "type": "Microsoft.Storage/storageAccounts",
            "name": "[variables('storageAccountName')]",
            "apiVersion": "2015-06-15",
            "location": "[resourceGroup().location]",
            "properties": {
                "accountType": "Standard_LRS"
            },
            "tags": {
                "department": "[variables('departmentTag')]"
            },
        }
    ],
    "outputs": {}
}