Comments in HCL in Terraform - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a single-line comment in HCL.

Terraform

#[1] This is a comment

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

A This is a comment

Attempts:

3 left

💡 Hint

Common Mistakes

Using // instead of # for single-line comments

Not adding a space after the comment symbol

In HCL, a single-line comment starts with the # symbol followed by the comment text.

2fill in blank

medium

Complete the code to add a multi-line comment in HCL.

Terraform

/*[1]*/

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

A This is a multi-line comment spanning multiple lines

B This is a single-line comment

C This is not a comment

D This is a wrong comment style

Attempts:

3 left

💡 Hint

Common Mistakes

Using # for multi-line comments

Not closing the multi-line comment properly

Multi-line comments in HCL are enclosed between /* and */. You can write multiple lines inside.

3fill in blank

hard

Fix the error in the comment syntax below by completing the blank.

Terraform

resource "aws_instance" "example" { [1] This resource creates an EC2 instance
  ami           = "ami-123456"
  instance_type = "t2.micro"
}

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

A//

B--

C/*

D#

Attempts:

3 left

💡 Hint

Common Mistakes

Using // instead of # inside resource blocks

Using SQL style comments like --

In HCL, single-line comments inside blocks use #. Using // or others causes errors.

4fill in blank

hard

Fill both blanks to correctly comment out the variable declaration in HCL.

Terraform

[1] variable "region" { 
  type    = string
  default = "us-west-2"
} [2]

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

A/*

B#

C*/

D//

Attempts:

3 left

💡 Hint

Common Mistakes

Using # at the end of the block

Using // instead of /* and */ for multi-line comments

To comment out multiple lines in HCL, use /* to start and */ to end the comment block.

5fill in blank

hard

Fill all three blanks to add a comment inside a resource block and a multi-line comment outside.

Terraform

/*[1]*/
resource "aws_s3_bucket" "bucket" {
  [2] Bucket for storing logs
  bucket = "my-log-bucket"
  acl    = "private"
}
[3]

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

A This is a multi-line comment spanning lines

B#

C/*

D*/

Attempts:

3 left

💡 Hint

Common Mistakes

Using # for multi-line comments outside resource blocks

Using /* inside resource blocks for single-line comments

The multi-line comment outside the resource uses /* and */. Inside the resource, use # for single-line comments.