fluke/devops-service/workers/stack_bootstrap/chef_node_name_builder.rb

class ChefNodeNameBuilder
  DEFAULT_MASK = '$project-$cfname-$env'

  def initialize(server_info, project, env)
    @server_info, @project, @env = server_info, project, env
    @mask = (server_info['tags']['cid:node-name-mask'] || DEFAULT_MASK).dup
  end

  def build_node_name
    @mask.gsub!('$project', @project.id)
    @mask.gsub!('$env', @env.identifier)
    @mask.gsub!('$instanceid', @server_info['id'])
    @mask.gsub!('$cfname', @server_info['tags']['Name'] || '')
    @mask.gsub!('$time', Time.now.to_i.to_s)
    @mask.gsub!('_', '-')
    @mask
  end
end