Understanding Terraform modules
So far, we have written Terraform configuration code, but have you ever thought about how effectively we can make it reusable? Just consider that you have many product teams with whom you are working, and they wish to use Terraform configuration code for their infrastructure deployment. Now, you may be wondering if it's possible to write code once and share it with these teams so that they don't need to write the same code again and again. This is where Terraform modules come in. Let's try to get an idea of what these are.
A Terraform module is basically a simple configuration file ending with .tf or tf.json, mainly consisting of resources, inputs, and outputs. There is a main root module that has the main configuration file you would be working with, which can consume multiple other modules. We can define the hierarchical structure of modules like this: the root module can ingest a child module, and that child module can invoke multiple...