LonoParams

Tool to generate a CloudFormation params json formatted file

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. Then given, a file with params in a simple list format:

$ cat params/my-stack.txt 
Param1=1
Param2=1
$ 

Generate the CloudFormation json file that can be used with the aws cloudformation create-stack command.

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

This is what the output/params/my-stack.json file looks like:

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

More Help

$ bin/lono-params help
Commands:
  lono-params generate NAME   # generate parameter json file for NAME
  lono-params help [COMMAND]  # Describe available commands or one specific command

Options:
  [--verbose], [--no-verbose]    
  [--noop], [--no-noop]          
  [--project-root=PROJECT_ROOT]  # project root to use
                                 # Default: .

$ lono-params help generate
/Users/tung/src/gitresolve/infra/lono/vendor/gems/lono-params/bin
Usage:
  lono-params generate NAME

Options:
  [--use-previous-value], [--no-use-previous-value]  
                                                     # Default: true
  [--verbose], [--no-verbose]                        
  [--noop], [--no-noop]                              
  [--project-root=PROJECT_ROOT]                      # project root to use
                                                     # Default: .

Description:
  Example:

  To generate a CloudFormation json file from params/my-stack.txt

  $ lono-params generate my-stack

  This will output a CloudFormation json file in output/params/my-stack.json
$ 

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