# What is this?

Test to see if a cloud billing API can be used to predict the price of a deployment from a terraform plan file, Hetzner cloud has a small/easily-parsable pricing endpoint - some amateur Python.

## Install terraform

```
curl https://releases.hashicorp.com/terraform/0.12.29/terraform_0.12.29_linux_amd64.zip --output terraform_0.12.29_linux_amd64.zip
unzip terraform_0.12.29_linux_amd64.zip
rm -f terraform_0.12.29_linux_amd64.zip
sudo mv terraform /usr/local/bin
sudo chown root.root /usr/local/bin/terraform
terraform -help
```

## Install provider

This is automatic on `terrafrom init` for the hetzner provider.

## Setup provider and bearer token

The main.tf file should list the provider at the top.

```
provider "hcloud" {
  token = var.hcloud_token
  endpoint = var.hcloud_endpoint
  poll_interval = var.hcloud_poll_interval
}
```

The variables.tf file should include the required variables.

```
variable "hcloud_token" {default = "<your bearer token here>"}
variable "hcloud_endpoint" {default = "https://api.hetzner.cloud/v1"}
variable "hcloud_poll_interval" {default = "500ms"}
```

## main.tf - the terraform code

## variables.tf - the variables

## plan, apply, destroy

```
terraform plan
terraform apply
terraform destroy
```

## get resources in json format

Use the plan file to work out the cost of of the objects to be provisioned by terraform
Get json output of a terraform plan

terraform plan -out=./planfile
terraform show -json planfile.tf

## run python script to parse the terraform planfile and fetch costs from the hetzner billing API 

python3 main.tf