print-docker-run-from-container.rb

#!/usr/bin/env ruby
require 'json'
require 'shellwords'

cid = ARGV[0]
JSON.parse(`docker inspect #{cid}`).each do |c|
  config = c['Config']

  args = %w!docker run -it!
  config['Env'].each do |e|
    args << '-e' << e
  end
  args << c['Image']
  args += config['Cmd']

  puts args.shelljoin
end