ARM template SKU lookup

arm-template-hashtable-lookup.json

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0",
  "parameters": {
    "sku": {
      "type": "string",
      "defaultValue": "B1"
    }
  },
  "variables": {
    "tiers": {
      "F": "Free",
      "B": "Basic",
      "S": "Standard",
      "P": "Premium"
    },
    "tier": "[variables('tiers')[toUpper(substring(parameters('sku'), 0, 1))]]"
  },
  "resources": [],
  "outputs": {
    "tier": {
      "value": "[variables('tier')]",
      "type" : "string"
    }
  }
}