Kumogata2 is a tool for AWS CloudFormation.
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Kumogata2 is a tool for AWS CloudFormation.

This is a format converter + useful tool.

Gem Version


Add this line to your application's Gemfile:

gem 'kumogata2'

And then execute:

$ bundle

Or install it yourself as:

$ gem install kumogata2


Usage: kumogata2 <command> [args] [options]

  describe         STACK_NAME                 Describe a specified stack
  create           PATH_OR_URL [STACK_NAME]   Create resources as specified in the template
  update           PATH_OR_URL STACK_NAME     Update a stack as specified in the template
  delete           STACK_NAME                 Delete a specified stack
  deploy           PATH_OR_URL STACK_NAME     Create a change set and executes it
  validate         PATH_OR_URL                Validate a specified template
  list             [STACK_NAME]               List summary information for stacks
  export           STACK_NAME                 Export a template from a specified stack
  convert          PATH_OR_URL                Convert a template format
  diff             PATH_OR_URL1 PATH_OR_URL2  Compare templates logically (file, http://..., stack://...)
  dry-run          PATH_OR_URL STACK_NAME     Create a change set and show it
  show-events      STACK_NAME                 Show events for a specified stack
  show-outputs     STACK_NAME                 Show outputs for a specified stack
  show-resources   STACK_NAME                 Show resources for a specified stack
  template-summary PATH_OR_URL                Show template information for a specified stack

Support Format:
  json, js, template

    -k, --access-key ACCESS_KEY
    -s, --secret-key SECRET_KEY
    -r, --region REGION
        --profile PROFILE
        --credentials-path PATH
        --output-format FORMAT
    -p, --parameters KEY_VALUES
    -j, --json-parameters JSON
        --timeout-in-minutes TIMEOUT_IN_MINUTES
        --notification-arns NOTIFICATION_ARNS
        --capabilities CAPABILITIES
        --resource-types RESOURCE_TYPES
        --on-failure ON_FAILURE
        --stack-policy-body STACK_POLICY_BODY
        --stack-policy-url STACK_POLICY_URL
        --stack-policy-during-update-body STACK_POLICY_DURING_UPDATE_BODY
        --stack-policy-during-update-url STACK_POLICY_DURING_UPDATE_URL
        --tags TAGS
        --result-log PATH
        --command-result-log PATH

Environment variables

export AWS_REGION=us-east-1

Create resources

$ kumogata2 create template.rb

If you want to save the stack, please specify the stack name:

$ kumogata2 create template.rb any_stack_name

If you want to pass parameters, please use -p option:

$ kumogata2 create template.rb -p "InstanceType=m1.large,KeyName=any_other_key"


The stack will be delete if you do not specify the stack name explicitly. (And only the resources will remain)


Kumogata2 can be extended with plug-ins, such as the following:

class Kumogata2::Plugin::JSON
  Kumogata2::Plugin.register(:json, ['json', 'js', 'template'], self)

  def initialize(options)
    @options = options

  def parse(str)

  def dump(hash)

see kumogata2-plugin-ruby.

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