Simple gem to manage loading external Terraform module outputs from state files or consul.


Add this line to your application's Gemfile:

gem 'tfenv'

And then execute:

$ bundle

Or install it yourself as:

$ gem install tfenv


Configuration options:

$ tfenv -h
Usage: tfenv [options] [command]
    -s, --state-file FILE            Include external state output from state file
    -c, --consul URL/KEY             Include external state output from consul
    -t, --tfvar FILE                 Write variables to tfvar file
    -v, --[no-]verbose               Run verbosely

Examine outputs for given configuration:

$ tfenv -s ~/main-module/terraform.tfstate

Run terraform (or any other command) using configured outputs:

$ tfenv -s ~/main-module/terraform.tfstate terraform plan


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at


The gem is available as open source under the terms of the MIT License.