Dump Terraform Cloud Workspace variables into a terraform.auto.tfvars file

tfe2tfvars_readme.md

Getting Started

Virtualenv setup

pip install virtualenvwrapper
mkvirtualenv tfe2tfvars
workon tfe2tfvars
pip install -r requirements.txt

Usage

The following command will generate a terraform.auto.tfvars file in the current directory populated with the values taken from the Terraform workspace variables:

./tfe2tfvars.py -t tfe_hostname -o tfe_org -w workspace

tfe2tfvars_requirements.txt

pyhcl
requests
terrasnek

tfe2tfvars_tfe2tfvars.py

#!/usr/bin/env python3

import argparse
import os
import sys

import hcl

from terrasnek.api import TFC


def read_args():
    parser = argparse.ArgumentParser(
        description='''
        Read variables from a Terraform Cloud or Terraform Enterprise Workspace
        and dump them into a new terraform.auto.tfvars file.

        It automatically reads the TFE Token from ~/.terraformrc
        ''')

    parser.add_argument('-t', '--tfe-hostname', help='TFE Hostname',
                        default='app.terraform.io')
    parser.add_argument('-o', '--organization', help='TFE Organization')
    parser.add_argument('-w', '--workspace', help='TFE Workspace')
    parser.add_argument('-f', '--output-file', help='Output file',
                        default='terraform.auto.tfvars')

    args = parser.parse_args()

    if args.organization is None:
        print('Missing Organization, pass the -o|--organization command-line flag')
        sys.exit(1)

    if args.workspace is None:
        print('Missing workspace, pass the -w|--workspace command-line flag')
        sys.exit(1)
    return args


def get_tfe_token(hostname):
    with open(os.path.expanduser('~/.terraformrc'), 'r') as fp:
        obj = hcl.load(fp)
    return obj['credentials'][hostname]['token']


def output_tfvars(vars, file):
    with open(file, 'w') as fp:
        for obj in vars['data']:
            key = obj['attributes']['key']
            value = obj['attributes']['value']
            fp.write('%s = %s\n' % (key, value))


def main():
    args = read_args()
    token = get_tfe_token(args.tfe_hostname)
    api = TFC(token, url="https://"+args.tfe_hostname)
    api.set_org(args.organization)
    vars = api.vars.list(args.workspace)
    output_tfvars(vars, args.output_file)


main()