part two

Question 1

what is a resource block in terraform ?

Answer 1

It defines a specific infrastructure component, such as a virtual machine, storage bucket, or a database, that Terraform will manage.

Question 2

how do you run the terraform destroy command to destroy just a specific resource ?

Answer 2

use the -target flag. (terraform destroy -target resource_type.local_resource_name)

Question 3

what is an attribute in terraform ?

Answer 3

Attributes define the details or configuration of a resource and can also include information Terraform retrieves after the resource is created

Question 4

what is string interpolation ?

Answer 4

string interpolation is used when you want to merge or combine variables (or expressions) with plain text (defined directly in the string).

eg variable “username” {
default = “Alice”
}
“Welcome, ${var.username}!”

Question 5

what is the function of an output block in terraform ?

Answer 5

it makes information about your infrastructure available on the command.

Question 6

what are variables in terraform ?

Answer 6

A variable in Terraform is like a container for storing data that can be reused throughout your configuration

Question 7

what are the different ways you can define variables in terraform ?

Answer 7

• variable defaults
• variable definition file (*.tfvars)
• Environment variables
• setting variables in the command line

Question 8

which variable takes precedence in terraform ?

Answer 8

• Command-line flags (-var or -var-file)
• Environment variables (TF_VAR_)
• terraform.tfvars or terraform.tfvars.json
• Automatically loaded .auto.tfvars files
• Default values in variables.tf (Lowest Priority)

Question 9

what is data type in terraform ?

Answer 9

In Terraform, data types define the kind of values a variable or output can hold. eg string bool number list set map null

Question 10

what are the different meta arguments in terraform ?

Answer 10

• depends_on : Specifies that a resource or module depends on another resource or module.
• count: Lets you create multiple instances of a resource or module based on a number.
• for_each : Allows you to create multiple instances of a resource or module based on a map or set, with each item being unique.
• provider : Specifies which provider configuration to use for a resource or module.
• lifecycle: Manages the lifecycle behavior of a resource (e.g., prevent deletion, ignore changes, etc.).

create_before_destroy: Ensures a new resource is created before destroying the old one.
prevent_destroy: Protects a resource from being destroyed accidentally.
ignore_changes: Tells Terraform to ignore changes to certain attributes.
- timeouts: Configures how long Terraform should wait for a resource operation to complete.