Lono Params

Tool to generate a CloudFormation params json formatted file from a simple env file.

Given:

Param1=1
# comments are fine
Param2=2 # comments can go after the line too
Param3=use_previous_value # treated specially

This is produced:

[
  {
    "ParameterKey": "Param1",
    "ParameterValue": "1"
  },
  {
    "ParameterKey": "Param2",
    "ParameterValue": "2"
  },
  {
    "ParameterKey": "Param3",
    "UsePreviousValue": true
  }
]

Installation

Add this line to your application's Gemfile:

gem 'lono-params'

And then execute:

$ bundle

Or install it yourself as:

$ gem install lono-params

Usage

Create a directory under your project folder called params. Create a env file at params/my-stack.txt.

To generate the CloudFormation json file that can be used with the aws cloudformation create-stack command, run:

$ lono-params generate my-stack
Params file generated for my-stack at ./output/params/my-stack.json
$

More Help

$ bin/lono-params help

Contributing

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