Creating Packer templates for Azure VMs with scripts

As mentioned in the introduction, to create a VM image, Packer is based on a file (template) that is in JSON format. We will first see the structure and composition of this JSON template, and then we will put into practice how to create a template that will create a VM image in Azure.

The structure of the Packer template

The Packer JSON template is composed of several main sections such as builders, provisioners, and variables. The structure of a template is as follows:

{
     "variables": {
     // list of variables
     ...
     },
     "builders": [
         {
         //builders properties
         ...
         }
     ],
     "provisioners": [
    ...