From the course: Hashicorp Certified Terraform Associate (003) Cert Prep

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Looping and creating multiple instances

Looping and creating multiple instances - Terraform Tutorial

From the course: Hashicorp Certified Terraform Associate (003) Cert Prep

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Looping and creating multiple instances

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- [Instructor] Resource dependencies in Terraform. So in Terraform, dependencies refers to the relationship between resources in a configuration. Terraform uses this information to determine the correct order in which to create or modify your resources. So here, I have the configuration, just walk to you through how the depends_on works. Okay, so I have resource block here for aws_security_group for creating EC2 instance. Whenever you see me use dot, dot, dot here, which I have actually commented out is just to show that that other parameters that should come with it. I just want to manage the space. So this is for creating AWS security group. This is for EC2 instance. And here, I am explicitly specifying the dependency on the security group. I just want to tell Terraform that AWS EC2 instance here depends on the existence of my resource group, okay? So I want Terraform to provision the resource group first before EC2 instance. So this is a way to let Terraform note that it shouldn't…

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