terraform

HeroCTF - Terraform

Getting started

Installation

Install terraform:

# debian
sudo apt update && sudo apt install terraform
# arch
sudo pacman -S terraform

Configuration

Copy the .env.sample file to .env and fill the environment variables.

• TF_VAR_LINODE_API_KEY: Create an API Token at https://cloud.linode.com/profile/tokens.
• TF_VAR_ROOT_PASSWORD: Generate a random password, i.e. openssl rand -hex 32.
• TF_VAR_SSH_PUBLIC_KEY_PATH: Path of the SSH public key, i.e. ~/.ssh/heroctf/linode.pub.

mkdir -p ~/.ssh/heroctf/
ssh-keygen -f ~/.ssh/heroctf/linode -C 'heroctf@challenge'
chmod 600 ~/.ssh/heroctf/linode

Usage

Initialize, plan & apply terraform:

set -a; source .env; set +a
terraform init
terraform plan -var='static_challenges_count=1' -var='dynamic_challenges_count=1'
terraform apply -var='static_challenges_count=1' -var='dynamic_challenges_count=1'

ssh root@<public_ip_v4_address> -i ~/.ssh/heroctf/linode

Plan and destroy terraform:

set -a; source .env; set +a
terraform plan -destroy
terraform destroy