Resource Exports & Dependencies | Terraform Tutorial | #5

Each resource in Terraform exports data and information about the resource. This data can then be used as input into other resources. When data from one resource is used for another then it becomes a dependency. Thankfully Terraform automatically figures out any dependencies allowing users not to have to worry about it much.

In this video we'll create a few resources using the values of one resource as the input into other resources. Below are a few things that we'll cover.

- Create an AWS VPC, Subnet and Instance
- Use the exported attributes from one resource into another creating a dependency

Code Examples:

AWS VPC:

AWS Subnet:

AWS Instance:

[isaacambi]

I have been wondering how I would eventually learn Terraform, but I am finally at ease after I found you. I love you so much, the way you show how to read the documentation is legendary, your simplicity is profound.

[zvirtual]

Will, thanks man! I appreciate the support in passing attributes that were already created. Nice work!

[ExarchiasGhost]

I was really struggling to learn Terraform and your tutorials made it look simple. I wish to mention that your tutorials are awesome and I am deeply grateful for your videos.

[christianibiri]

A big thank you for this, I had problems in order to obtain info from other resources, like a vpc or a subnet. With this video all my confusion is gone :)

[felipeozoski]

Thank you for this!!! We all appreciate it!

[PublicVoidFoo]

2:58 running `terraform fmt` in your console should format that for you

great playlist so far!

[MuhammadWaqas-grgg]

Thanks for the video Will. I have a Question, if Terraform is enough smart and knows the order like u said first VPC, then why max. people and programmers use "Depends on" argument....e.g here in above example for subnet we must need VPC first....please explain....

[mauriciomejia]

What is the extension you use for vs code? I have the HashiCorp Terraform version v2.5.0 installed and the auto complete does not work.

[Gravity]

So I should name my subnet "web"? JK Thank you for making this!

[jainamshah]

what? really it does not explain much like why we only use exported attribute - id and not other attributes like arn or any other.