Why testing infrastructure matters in Terraform - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to initialize Terraform before applying changes.

Terraform

terraform [1]

Drag options to blanks, or click blank then click option'

Ainit

Bapply

Cplan

Ddestroy

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'apply' before initialization causes errors.

Confusing 'plan' with 'init'.

Terraform must be initialized with terraform init to download providers and set up the working directory before applying any changes.

2fill in blank

medium

Complete the code to preview infrastructure changes without applying them.

Terraform

terraform [1]

Drag options to blanks, or click blank then click option'

Avalidate

Bplan

Cdestroy

Dapply

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'apply' when only previewing changes.

Confusing 'validate' with planning.

terraform plan shows what changes Terraform will make without applying them. This helps catch mistakes early.

3fill in blank

hard

Fix the error in the Terraform configuration to ensure resource names are unique.

Terraform

resource "aws_instance" "[1]" {
  ami           = "ami-12345678"
  instance_type = "t2.micro"
}

Drag options to blanks, or click blank then click option'

Aaws_instance

Binstance

Cwebserver

Dresource

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'resource' as the resource name.

Using the provider name as the resource name.

The resource name must be a unique identifier like webserver. Using generic names like 'resource' or 'aws_instance' causes conflicts.

4fill in blank

hard

Fill both blanks to create a variable with a default value and use it in the resource.

Terraform

variable "[1]" {
  type    = string
  default = "t2.micro"
}

resource "aws_instance" "example" {
  ami           = "ami-12345678"
  instance_type = var.[2]
}

Drag options to blanks, or click blank then click option'

Ainstance_type

Bami_id

Dregion

Attempts:

3 left

💡 Hint

Common Mistakes

Mismatching variable name and usage.

Using unrelated variable names.

The variable name instance_type is declared and then referenced as var.instance_type in the resource to set the instance type.

5fill in blank

hard

Fill all three blanks to output the public IP of an AWS instance after deployment.

Terraform

output "[1]" {
  value = aws_instance.[2].[3]
}

Drag options to blanks, or click blank then click option'

Ainstance_ip

Bexample

Cpublic_ip

Dprivate_ip

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'private_ip' instead of 'public_ip'.

Mismatching resource names.

The output named instance_ip shows the public_ip attribute of the AWS instance named example.