Skip to main content

Mimiron is a CLI tool whose purpose is to provide a better workflow when manging tfvars

Project description

# Mimiron

[![Build Status](](
[![PyPI version](](

**Welcome to mimiron!**

> [Mimiron]( is one of the Titanic Watchers. He once resided at the Temple of Invention, but is absent during the time of Loken's rebellion.

Mimiron is a CLI tool that aims provide a better workflow when manging Terraform variables.

When all of your Terraform config is completely modular, the only sane way to manage variables is to store them inside a `variables.json` file and pass that along when you run `terraform apply -var-file=variables.json`... but where do you store `variables.json` and how can you easily make changes?

Our approach is to store non-sensitive variables inside the same repository as our Terraform config. Sensitive variables like your AWS secret and master db password are stored elsewhere and pulled in via environment variables e.g. `TF_VAR_aws_access_key`. Mimiron does **not** manage sensitive variables for you.

We want to make simple tasks such as bumping an image version simple and Mimiron is a small CLI tool that does that. Mimiron provides a few commands to help automate the cumbersome tasks away.

## Installation

$ pip install mimiron

Export necessary environment variables to let Mimiron know where your terraform repo is located:

export TF_DEPLOYMENT_PATH="~/workspace/terraform"
export DOCKER_ORG=""

## Assumptions

* Your Terraform config repo has a dir `/terraform/tfvars/` with your tfvars in a JSON file e.g. `/terraform/tfvars/staging.json`
* Docker image artifacts are stored in the DockerHub registry
* Docker image artifacts are named `service_name_image` e.g. `web_marketing_image`
* AMI artifacts are named `service_name_ami_id` e.g. `web_marketing_ami_id`

## Usage

>>> mim --help

mim bump <service> <env> [--latest] [--no-push]
mim status <env>

bump bumps the <service> with an image <artifact>
status shows the currently used artifact id for <env>

<artifact> the deployment artifact we are pushing (e.g. Docker image/AMI)
<service> the application we're targeting
<env> the environment we want to change

--no-push make local changes without pushing to remote
--latest use the latest artifact when updating a service

-h --help shows this
-v --version shows version

## Development

Clone the project:

$ git clone

Setup your virtualenv:

$ mkvirtualenv mimiron

Attach mim to your shell:

$ python develop

## Deployment

Create a `~/.pypirc` and replace the username and password with real credentials:

index-servers =


Register this package to the Cheeseshop:

$ python register -r mimiron

Build a distributable and upload:

$ python sdist upload -r mimiron

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for mimiron, version 0.2.5
Filename, size File type Python version Upload date Hashes
Filename, size mimiron-0.2.5.tar.gz (9.3 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring DigiCert DigiCert EV certificate Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page