64 lines
1.6 KiB
Markdown
64 lines
1.6 KiB
Markdown
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# What is this?
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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.
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## Install terraform
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```
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curl https://releases.hashicorp.com/terraform/0.12.29/terraform_0.12.29_linux_amd64.zip --output terraform_0.12.29_linux_amd64.zip
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unzip terraform_0.12.29_linux_amd64.zip
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rm -f terraform_0.12.29_linux_amd64.zip
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sudo mv terraform /usr/local/bin
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sudo chown root.root /usr/local/bin/terraform
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terraform -help
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```
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## Install provider
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This is automatic on `terrafrom init` for the hetzner provider.
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## Setup provider and bearer token
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The main.tf file should list the provider at the top.
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```
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provider "hcloud" {
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token = var.hcloud_token
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endpoint = var.hcloud_endpoint
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poll_interval = var.hcloud_poll_interval
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}
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```
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The variables.tf file should include the required variables.
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```
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variable "hcloud_token" {default = "<your bearer token here>"}
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variable "hcloud_endpoint" {default = "https://api.hetzner.cloud/v1"}
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variable "hcloud_poll_interval" {default = "500ms"}
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```
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## main.tf - the terraform code
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## variables.tf - the variables
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## plan, apply, destroy
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```
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terraform plan
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terraform apply
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terraform destroy
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```
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## get resources in json format
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Use the plan file to work out the cost of of the objects to be provisioned by terraform
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Get json output of a terraform plan
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terraform plan -out=./planfile
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terraform show -json planfile.tf
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## run python script to parse the terraform planfile and fetch costs from the hetzner billing API
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python3 main.tf
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