Azure Classroom Series – 13/Jul/2021

Structure and Syntax of ARM Templates

• Refer Here for the official documentation
• The skeleton

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "",
  "apiProfile": "",
  "parameters": {  },
  "variables": {  },
  "functions": [  ],
  "resources": [  ],
  "outputs": {  }
}

• ARM Template Elements
  • $schema: Describes the version of template language. The version used depends on the scope of deployment and JsonEditior
  • contentVersion: This represents the version of template. We can provide any value for this generally the following notation (x.x.x.x => 1.0.0.1) is recommended
  • apiProfile: An API version that servers collection of API versions for resource types
  • parameters: Values that are provided when deployment is executed
  • variables: Used and created within template to simplify template expressions
  • functions: User-defined functions that are available within the template
  • resources: Resource Types that are deployed or updated in Resource group or subscription
  • outputs: values are returned after deployment

Setting up Visual Studio code for ARM Templates

• Install Azure Resource Manager tools extension
• This extension will help in authoring/developing arm templates

Activity 1: Create a Virtual Network

• Lets try to create an ARM Template which will create a Virtual Network with 2 subnets

  • Virtual Network cidr range => 10.10.0.0/16 (10.10.0.0 – 10.10.255.255)
  • web subnet cidr range => 10.10.0.0/24 (10.10.0.0 – 10.10.0.255)
  • app subnet cidr rnage => 10.10.1.0/24 (10.10.1.0 – 10.10.1.255)

• Manual Steps:

• In this example we are creating a virtual network with two subnets. The main resource which we are creating is a virtual network

• Writing ARM Template

  • Create a json file and create and empty template (arm!)
  • Virtual network resource documentation Refer Here
  • Refer Here for the tempalte created in the class
  • Steps:
  • Create-> Template Depoyment