Murk

Configuration, parameterization, and environmental partitioning of AWS CloudFormation stacks.

What it is

Murk is a tool intended to simplify the configuration, management, and partitioning of your AWS CloudFormation environment. It offers:

• A simple CLI for creating and destroying CloudFormation stacks by name, with some simple rules for locating templates.
• A DSL for specifying the parameter values you wish to supply when creating stacks from templates.
• A mechanism for specifying different 'environments' (e.g. production, dev, qa), and the stacks that should be created within them.

What it isn't

A DSL for generating CloudFormation templates themselves. Murk assumes you've already authored your CloudFormation templates by hand, or generated them using another 3rd party tool.

Requirements

• Ruby 2.2.x
• AWS SDK for Ruby v2
• Configured AWS SDK credentials

Running the example

gem install murk
cd examples

# Create a VPC stack in the 'qa' environement named 'myqa'
murk create --stack vpc --env qa myqa

# Create the webapp-network stack in the 'qa' environement named 'myqa'
murk create --stack webapp-network --env qa myqa

# Create the webapp-compute stack in the 'qa' environement named 'myqa'
murk create --stack webapp-compute --env qa myqa

# Delete the 'qa' webapp-compute stack
murk delete --stack webapp-compute --env qa myqa