Introduction

python-terraform is a python module provide a wrapper of terraform command line tool. terraform is a tool made by Hashicorp, please refer to https://terraform.io/

Status

Installation

pip install python-terraform

Usage

For any terraform command

from python_terraform import Terraform
t = Terraform()
return_code, stdout, stderr = t.<cmd_name>(*arguments, **options)

For any options

if there's a dash in the option name, use under line instead of dash,
    ex. -no-color --> no_color
if it's a simple flag with no value, value should be IsFlagged
    ex. cmd('taint', allow＿missing=IsFlagged)
if it's a boolean value flag like "-refresh=true", assign True or False
if it's a flag could be used multiple times, assign list to it's value
if it's a "var" variable flag, assign dictionary to it
if a value is None, will skip this option

Examples

Have a test.tf file under folder "/home/test"

1. apply with variables a=b, c=d, refresh=false, no color in the output

In shell:

cd /home/test
terraform apply -var='a=b' -var='c=d' -refresh=false -no-color

In python-terraform:

from python_terraform import Terraform
tf = Terraform(working_dir='/home/test')
tf.apply(no_color=IsFlagged, refresh=False, var={'a':'b', 'c':'d'})

or

from python_terraform import Terraform
tf = Terraform()
tf.apply('/home/test', no_color=IsFlagged, refresh=False, var={'a':'b', 'c':'d'})

2. fmt command, diff=true

In shell:

cd /home/test
terraform fmt -diff=true 

In python-terraform:

from python_terraform import Terraform
tf = terraform(working_dir='/home/test')
tf.fmt(diff=True)

Implementation

IMHO, how terraform design boolean options is confusing. Take input=True and -no-color option of apply command for example, they're all boolean value but with different option type. This make api caller don't have a general rule to follow but to do a exhaustive method implementation which I don't prefer to. Therefore I end-up with using IsFlagged or IsNotFlagged as value of option like -no-color and True/False value reserved for option like