Hey there, Gurus! Welcome to the lab! This lab will demonstrate how to create a `null_resource` that can be used to call a script to run against your newly created Terraform resources. This will allow you to add some functionality and flexibility to your Terraform configuration and perform useful tasks. For instance, in this lab, we will query the status of our EC2 instance and display useful information as our resources get deployed.
Learning Objectives
Successfully complete this lab by achieving the following learning objectives:
- Create a `null_resource`
- In the terminal, once logged in to your instance, change to the
Use_null_resource
directory. - In the
Use_null_resource
directory, edit thevariables.tf
file and add in yourami
andsubnet_id
from theresource_ids.txt
file. - In the
Use_null_resource
directory, edit themain.tf
file and add the following:resource "null_resource" "ec2_status" { provisioner "local-exec" { command = "./scripts/health.sh" } }
- Examine the
health.sh
script in theUse_null_resource/scripts
directory to see what it does. - Initialize your working directory.
- Deploy your resources.
- In the terminal, once logged in to your instance, change to the
- Confirm Your EC2 Instance Has Been Created
- Check your outputs to confirm your instance was deployed.
- Check the lab-provided AWS console or use the AWS CLI to confirm your EC2 instance was created.