Introductionarm templates

Azure virtual machine, also abbreviated as Azure VM for short, is an actual computer much like any other, be it a server, laptop, or smartphone. It features a CPU, memory, discs for storing files, and an internet connection capability if necessary. Azure Virtual machines (VMs) are generally conceived of as virtual computers or software-defined computers within physical servers, existing solely as code, in contrast to the hardware, which is the actual, tangible components that make up your computer.

ARM Templates

Infrastructure as code, or ARM templates, is a paradigm that defines the infrastructure that must be deployed. The declarative syntax is used in ARM templates, so you indicate the resources you want Azure to deploy, but you don’t have to explain how they’re made.

ARM Template File Understanding

If you are not a coder, no worries!!

Let us decode it for you!

A file called the ARM Template has different key-value pairs in JSON format. Its form is not that difficult to understand, as we mentioned below:

{
“$schema””https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#”,
“contentVersion”: “1.0.0.0”,
“metadata”: {
“_generator”: {
“name”: “bicep”,
“version”: “0.4.613.9944”,
“templateHash”: “7822315097766237434”
}

ARM Template: JSON Text File Structure

An ARM template is a text file with a JSON structure. The following sections are included in it:

  • Schema: The location of the JSON file and the desired template language version are specified in the “schema.” The goal of your deployment determines this schema.
  • Parameters: A template’s setup is defined by its parameters. They are employed during deployment or runtime. Names, types, values, and properties are examples of parameters.
  • Variables: A useful tool for increasing the dynamic, updateability, and readability of templates is the variable. Stated differently, a specific value can have a short name assigned to it that can be referred to from anywhere in the template. This is useful if you only need to alter one variable and you want to update all the values or references.
  • Functions: The purpose of a template is to provide a sequence of actions and procedures to accomplish a goal. It functions similarly to a variable that specifies the steps taken when a template is called.
  • Resources: Depending on the kind of object you wish to deploy, the details are different in the Resources section.
  • Output: When you view a template’s completed work, it is known as the output.

When to use an ARM Template?ARM Templates

There are situations where repeating the same action is necessary. ARM Templates are useful in this situation. Using an ARM Template and a straightforward PowerShell script, you may distribute resources.

Azure VMs customisation steps Using ARM Templates

Aim: Although you are aware that PowerShell and the Azure site may be used to construct an Azure virtual machine (VM), in this lab we will experiment with deploying a VM using a quick start template and investigate its monitoring features.

Prerequisite: Require an Azure portal account. If you don’t already have one, make one for free.

Step 1: First visit the Quick Start gallery and select a template

  • Open the Azure Portal and login. Go to your preferred browser now and look up Azure Quickstart Templates.
  • Find and choose Deploy a basic Windows virtual machine.
  • Select the “Deploy to Azure” option. You’ll be taken to your Azure portal as a result. To log in, you can enter your credentials.
  • In the Template section, select the option to Edit the template.

Step 2: Verify and check VM Deployment

  • Navigate to All Services from your home tab and type in Virtual Machines. Choose your virtual machine and launch it.
  • The duration can be changed to suit your needs. To display data, select the Monitoring tab in the Overview pane and scroll.
  • Examine a variety of charts to keep an eye on virtual machines. Any chart can be clicked to add metrics or to modify the type of chart from what is shown.
  • Click on the Activity Log link on the left sidebar now. Every action, including the creation and modification of virtual machines, is always recorded in the activity log. You can try searching for any particular procedure and adding filters.

Conclusion

Hence, here in this blog, we have discussed step by step guide to customizing Azure VMs Using ARM Templates, the introduction of Virtual machines & ARM Templates. Hope now you are clear with each step of creating VMs using ARM Templates.

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