Chemtrail

Chemtrail lets you build and test CloudFormation templates.

Gems like cloud_formatter, cloud_builder and cfndsl are pretty cool for building small CloudFormation stacks. A more complex stack involves references, which needs an object hierarchy and testing.

Add this line to your application's Gemfile:

gem 'chemtrail'

And then execute:

$ bundle

Or install it yourself as:

$ gem install chemtrail

See the examples/ directory for an example of test-driving the OpsWorks VPC CloudFormation template.

Listing all available templates in lib/templates:

$ chemtrail list

Listing templates in a different path:

$ chemtrail list --path lib/taco/panic

Building a template:

$ chemtrail build crazy:cat:pants

Validating a template with Amazon (note that you will need to set the environment variables AWS_REGION, AWS_ACCESS_KEY_ID and AWS_SECRET_KEY):

$ chemtrail validate tangy:socks

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request