Outputs as documentation in Terraform - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define an output that shows the instance ID.

Terraform

output "instance_id" {
  value = [1]
}

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

Aaws_instance.example.type

Baws_instance.example.name

Caws_instance.example.id

Daws_instance.example.region

Attempts:

3 left

💡 Hint

Common Mistakes

Using the instance name instead of the ID.

Using the resource type property instead of the ID.

The output value should be the instance ID, which is accessed by aws_instance.example.id.

2fill in blank

medium

Complete the code to add a description to the output.

Terraform

output "instance_ip" {
  value       = aws_instance.example.public_ip
  description = [1]
}

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

A"The public IP address of the instance"

Binstance_ip

C"Instance public IP"

DThe public IP address of the instance

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put quotes around the description.

Using a variable name instead of a descriptive string.

The description must be a string enclosed in quotes to document the output.

3fill in blank

hard

Fix the error in the output block to correctly reference the subnet ID.

Terraform

output "subnet_id" {
  value = aws_subnet.example[1]
}

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

A.name

B[0]

C.subnet_id

D.id

Attempts:

3 left

💡 Hint

Common Mistakes

Using .subnet_id which is not a valid attribute.

Using .name which is not the ID.

The correct attribute for the subnet ID is .id.

4fill in blank

hard

Fill both blanks to output the list of security group IDs and add a description.

Terraform

output "security_group_ids" {
  value       = aws_security_group.example[1]
  description = [2]
}

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

A.*.id

B"List of security group IDs"

C"Security groups attached"

D.id

Attempts:

3 left

💡 Hint

Common Mistakes

Using .id instead of .* .id for lists.

Not quoting the description string.

To output a list of IDs, use .*.id. The description should be a quoted string.

5fill in blank

hard

Fill all three blanks to output a map of instance names to their private IPs with a description.

Terraform

output "instance_private_ips" {
  value       = { for inst in aws_instance.example : inst[1] => inst[2] }
  description = [3]
}

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

A.tags.Name

B.private_ip

C"Mapping of instance names to private IP addresses"

D.id

Attempts:

3 left

💡 Hint

Common Mistakes

Using .id instead of .tags.Name for keys.

Not quoting the description string.

The map key is the instance name from tags, the value is the private IP, and the description is a quoted string.