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Variables And Parameters In ARM

In this article, we will discuss variables and parameters in ARM.

What Is A Variable?

Whenever we want to reuse the value, we create the variable.

While creating the template, we create the variables by creating an attribute variables as shown in the figure below.

Picture showing how to declare the variables in ARM template

Click to Enlarge

And we can use it using the following syntax: -

[variables(‘variable_name’)]

Picture showing how to use variables in ARM template

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What Is A Parameter?

In the case of parameters, the value of the parameter is entered by the user at runtime while deploying the resource. We create the parameters by creating an attribute parameters as shown in the figure below.

Picture showing how to declare the parameters in ARM template

Click to Enlarge

When you deploy the resource, Azure has asked the user to enter the value of the parameter. In the below image, the Disks_mydisk_name is the parameter.

Picture showing how to perform custom deployment using an ARM template

Click to Enlarge

Posted By -	Karan Gupta

Posted On -	Friday, May 7, 2021

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