https://github.com/shazchaudhry/terraform_aws_add_ebs
Create AWS infrastructure and mount EBS with Terraform
https://github.com/shazchaudhry/terraform_aws_add_ebs
cloud-init ebs-volumes terraform
Last synced: 4 months ago
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Create AWS infrastructure and mount EBS with Terraform
- Host: GitHub
- URL: https://github.com/shazchaudhry/terraform_aws_add_ebs
- Owner: shazChaudhry
- Created: 2020-06-27T21:05:58.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2020-06-28T23:06:13.000Z (over 5 years ago)
- Last Synced: 2025-03-14T04:44:35.243Z (7 months ago)
- Topics: cloud-init, ebs-volumes, terraform
- Language: HCL
- Homepage:
- Size: 692 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Security: security.tf
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README
# Inspiration
Inspiration for this repo was a YouTube tutorial from [Java Home Cloud](https://www.youtube.com/javahomecloud) where it was demonstrated how to create a new EC2 instance, EBS volume and then attaching and mounting the volume.
## Scope
I wanted to take a step further and automate the instructions. This includes:
- Using modules from Terraform registry
- Using cloud init config for mounting attached EBS volume
- Using cloud init config for placing a user ssh public key on the EC2 instance
- Encrypting all EBS volumes by default
The idea is that infrastructure should be setup without human intervention
## Terraform commands
This is how infrastrucutre is setup with Terraform:
- See instruction on how to generate a new [SSH key](https://help.github.com/en/github/authenticating-to-github/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent) and adding it to the ssh-agent
- `export TF_VAR_public_key=$(ssh-keygen -y -f ~/.ssh/id_rsa)` _(This will be required unless public_key in variables.tf is already set. This public ssh key will be placed on the launched EC2 instances. And a user called "admin" will be able to log in without a password)_
- `terraform init`
- `terraform apply -auto-approve`
```
.
├── README.md
├── data.tf -> Among other things, it contains data sources for template files
├── ebs-volumes.tf -> EBS volumes are created and attached to EC2 instance
├── ec2.tf -> EC2 instance is created
├── pics
│ └── volume.png
├── provider.tf
├── security.tf -> Security group allowing you to SSH to the public EC2 instance
├── templates
│ ├── cloud-config-runcmd.tpl -> Template responsible mounting a volume
│ └── cloud-config-users.tpl -> Added a user ssh key to the EC2 instance
├── terraform.tfvars
├── variables.tf
└── vpc.tf
```
## Test
1. Log in to AWS console and conform that a block device other than root volume is attached to the EC2 instance
2. SSH to the EC2: `ssh admin@[PUBLIC_IP_OF_EC2_INSTANCE]`
3. SSH to the EC2 instance and type `df -BG`. Confirm you have `/data` directory
## Reference
- [cloud-init Documentation](https://cloudinit.readthedocs.io/)
- [Terraform Registry](https://registry.terraform.io/)