Assignment 02

1. Create an EC2 instance

Create a t2.micro EC2 instance and use the user_data field to install the Nginx web server to change the default page to show your name. Finally, add a created_by tag to the instance.

Note: To install nginx on an Ubuntu instance, replace apache2 with nginx in the code snippet from the lecture notes.

2. Create an S3 Terraform backend

Create an S3 backend with locking capabilities (using DynamoDB). For this, create a new folder at the top level named backend. Your file structure after this change should look like this:

project
└───backend
│   │   main.tf
└───live
    │   main.tf
    │   variables.tf
    │   outputs.tf

Configure Terraform to use this backend instead and move your state file to the backend (you shouldn't do this manually!). Finally, push your changes to a GitHub repository.

3. Contribute as a collaborator

For this exercise, you will pretend to be another member of the team. Clone the repo to a new folder and change the user_data field to show a different name; also, change the created_by tag to the new name. Apply your changes and make sure the page now displays the new name, and the console shows the new tag. Finally, push your changes to the repo.

4. Switch back to the main contributor

Switch back to the folder and configuration you created in the first step. Pull the latest changes from the repository (git pull), and do a terraform plan. Report the changes Terraform wants to make according to the plan.