Template deployment

• Automate deploying resources with Azure Resource Manager templates

Elements

• $schema: Schema specification
• contentVersion: Schema version
• parameters: Provide values during deployment phase (runtime)
• resources: Specify the resources to be deployed
• variables: Values that can be reused in the template.
• outputs: Return value from the deployed resources
• To create a new template resource: template deployment (deploy using custom templates)

{
  "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {},
  "resources": []
}

Variables

{
  "variables": {
    "hahaPrefix": "10.0.0.0/16",
    "hahaSubnet1Name": "Subnet-1",
    "hahaSubnet1Prefix": "10.0.0.0/24",
    "hahaSubnet2Name": "Subnet-2",
    "hahaSubnet2Prefix": "10.0.1.0/24"
  }
}

• Accessing variables defined in variables section
• "[variables('variable-name')]"
• Acessing variables defined in screen section
• "[resourceGroup().location]"

Parameters

• Parameters can be modified when creating the resources at the deployment screen

{
  "parameters": {
    "networkname": {
      "type": "string",
      "defaultValue": "armnetwork",
      "metadata": {
        "description": "Name of the VNet"
      }
    },
    "networkaddress": {
      "type": "string",
      "defaultValue": "10.6.0.0/16",
      "metadata": {
        "description": "Address of the VNet"
      }
    },
    "subnetname": {
      "type": "string",
      "defaultValue": "default",
      "metadata": {
        "description": "Name of subnet"
      }
    },
    "subnetaddress": {
      "type": "string",
      "defaultValue": "10.6.0.0/24",
      "metadata": {
        "description": "Address of subnet"
      }
    }
  }
}

• Accessing parameters
• "[parameters('parameter-name')]"

Resource iteration

• Create 3 storage accounts, one after the other
• concat(): concatenate strings
• copyIndex(): returns index of that resource (1, 2, 3)
• uniqueString(): returns a unique string

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {},
  "resources": [
    {
      "name": "[concat(copyIndex(),'storage',uniqueString(resourceGroup().id))]",
      "type": "Microsoft.Storage/storageAccounts",
      "location": "[resourceGroup().location]",
      "apiVersion": "2019-06-01",
      "kind": "StorageV2",
      "sku": {
        "name": "Standard_LRS"
      },
      "dependsOn": [],
      "tags": {},
      "properties": {},
      "copy": {
        "name": "storagecopy",
        "count": 3,
        "mode": "Serial",
        "batchSize": 1
      }
    }
  ]
}