PackRb

A gem for driving the Packer command line tool from within your Ruby project.

This gem was built against version 0.9.0 of Packer

Pre-Requisites

You must have a version of Packer installed.

Installation

Add this line to your application's Gemfile:

gem 'pack_rb'

And then execute:

$ bundle

Or install it yourself as:

$ gem install pack_rb

Usage

With In Memory Template

require 'pack_rb'
require 'json'

template = {
  variables: { foo: 'bar'},
  builders:   [
    {
      type:         'null',
      ssh_host:     '127.0.0.1',
      ssh_username: 'foo',
      ssh_password: 'bar'
    }
  ]
}.to_json

packer = PackRb::Packer.new(tpl: template, machine_readable: true)
packer.build(debug: true)

Note: A plain old ruby hash can be used for template also. Just leave off the JSON bits.

With Template File

require 'pack_rb'

packer = PackRb::Packer.new(tpl: 'config/template.json', machine_readable: true)
packer.build(debug: true)

Streaming Output

If you wish to have STDOUT and STDERR from the Packer command stream to the console as it runs, you will need to enable streaming by setting stream_output: true:

PackRb::Packer.new(tpl: 'config/template.json', machine_readable: true, stream_output: true)
packer.build(debug :true)

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment. Run bundle exec pack_rb to use the gem in this directory, ignoring other installed copies of this gem.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/manheim/pack_rb.

License

The gem is available as open source under the terms of the MIT License.