How to write custom Terraform AWS modules

To write a Terraform module, you will need to create a configuration file or a set of configuration files that define the resources you want to create or manage. A module is essentially a reusable configuration that can be called from other configurations or modules.

Here are the steps you can follow to write a Terraform module:

1. Define the resources you want to create or manage: Use resource blocks to define the resources you want to create or manage. For example, you might use an aws_instance resource to create an EC2 instance or an aws_s3_bucket resource to create an S3 bucket.
2. Define the input variables for the module: Use variable blocks to define the input variables for the module. Input variables allow users of the module to customize the behavior of the module when it is called. For example, you might define a variable for the number of EC2 instances to create or the name of an S3 bucket.
3. Define the output values for...