rg_sa_create.json

{
	"$schema": "https://schema.management.azure.com/schemas/2018-05-01/subscriptionDeploymentTemplate.json#",
	"contentVersion": "1.0.0.0",
	"parameters": {
		"rgName": {
			"type": "string",
			"defaultValue": "sko2020bwaf"
		},
		"rgLocation": {
			"type": "string",
			"defaultValue": "eastus"
		},
		"storagePrefix": {
			"type": "string",
			"defaultValue": "sko2020bwaf",
			"maxLength": 11
		}
	},
	"variables": {
		"storageName": "[concat(parameters('storagePrefix'), uniqueString(subscription().id, parameters('rgName')))]"
	},
	"resources": [{
			"type": "Microsoft.Resources/resourceGroups",
			"apiVersion": "2018-05-01",
			"location": "[parameters('rgLocation')]",
			"name": "[parameters('rgName')]",
			"properties": {}
		},
		{
			"type": "Microsoft.Resources/deployments",
			"apiVersion": "2018-05-01",
			"name": "storageDeployment",
			"resourceGroup": "[parameters('rgName')]",
			"dependsOn": [
				"[resourceId('Microsoft.Resources/resourceGroups/', parameters('rgName'))]"
			],
			"properties": {
				"mode": "Incremental",
				"template": {
					"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
					"contentVersion": "1.0.0.0",
					"parameters": {},
					"variables": {},
					"resources": [{
						"type": "Microsoft.Storage/storageAccounts",
						"apiVersion": "2017-10-01",
						"name": "[variables('storageName')]",
						"location": "[parameters('rgLocation')]",
						"sku": {
							"name": "Standard_LRS"
						},
						"kind": "StorageV2"
					}],
					"outputs": {}
				}
			}
		}
	],
	"outputs": {}
}