Terraform 101

A basic terraform example for a Medellin DevOps meetup talk, based on this example.

You can find the accompanying slides here: http://slides.com/castillobgr/terraform101

Setup

Clone this repo

git clone https://github.com/castillobg/blue-green.git

Create a key pair for the EC2 instances we'll create. Run ssh-keygen and follow the steps.
Inside /blue-green/terraform/ create a secrets.tfvars file with your AWS credentials:
```
cat <<EOF > variables.tfvars
access_key = "<your access key>"
secret_key = "<your secret key>"
public_key_path = "<path to the public key you generated>"
private_key_path = "<path to the private key you generated>"
key_name = "<a name for the key>"
EOF
```
Optionally, you can include an ami_code entry if you want to use a different one, like so: ami_code = "<ami code>". Default is ami-408c7f28.

Please note quotation marks ("") are mandatory for all entry values!
Run $ terraform plan -var-file=variables.tfvars and review the steps Terraform will follow to spin up your infrastructure.
NOTICE: if your account is not eligible AWS's free tier, you will be charged some money for running this step, which creates actual resources. If you're sure, run $ terraform apply.
Watch Terraform do its magic!