gem 'nap' # gives you rest... require 'rest' require 'active_support' require 'active_support/version' %w{ active_support/json }.each do |active_support_3_requirement| require active_support_3_requirement end if ActiveSupport::VERSION::MAJOR == 3 module EY module Metadata # An adapter that reads from the public EngineYard Cloud API (https://cloud.engineyard.com). Available from anywhere. # # See README for what environment variables and/or files you need to have in place for this to work. class EngineYardCloudApi URL = 'https://cloud.engineyard.com/api/v2/environments' # Currently the same as the SSH username. def database_username data['ssh_username'] end # The username for connecting by SSH. def ssh_username data['ssh_username'] end # Currently the same as the app name, at least for recently-created environments. # # It used to be named after the environment. def database_name data['apps'][0]['name'] end # The hostname of the database host. def database_host db_master end # The public hostname of the db_master. # # If you're on a solo app, it counts the solo as the app_master. def db_master if x = data['instances'].detect { |i| i['role'] == 'db_master' } x['public_hostname'] else solo end end # The public hostnames of all the app servers. # # If you're on a solo app, it counts the solo as an app server. def app_servers data['instances'].select { |i| %w{ app_master app solo }.include? i['role'] }.map { |i| i['public_hostname'] }.sort end # The public hostnames of all the db servers. # # If you're on a solo app, it counts the solo as a db server. def db_servers data['instances'].select { |i| %w{ db_master db_slave solo }.include? i['role'] }.map { |i| i['public_hostname'] }.sort end # The public hostnames of all the utility servers. # # If you're on a solo app, it counts the solo as a utility. def utilities data['instances'].select { |i| %w{ util solo }.include? i['role'] }.map { |i| i['public_hostname'] }.sort end # The public hostnames of all the app slaves. def app_slaves data['instances'].select { |i| %w{ app }.include? i['role'] }.map { |i| i['public_hostname'] }.sort end # The public hostnames of all the db slaves. def db_slaves data['instances'].select { |i| %w{ db_slave }.include? i['role'] }.map { |i| i['public_hostname'] }.sort end # The public hostname of the app_master. # # If you're on a solo app, it counts the solo as the app_master. def app_master if x = data['instances'].detect { |i| i['role'] == 'app_master' } x['public_hostname'] else solo end end # The public hostname of the solo. def solo if x = data['instances'].detect { |i| i['role'] == 'solo' } x['public_hostname'] end end # The name of the EngineYard AppCloud environment. def environment_name data['name'] end # The stack in use, like nginx_passenger. def stack_name data['stack_name'] end # The git repository that you told EngineYard to use for this application. def repository_uri data['apps'][0]['repository_uri'] end def data_loaded? defined?(@data) and @data.is_a? Hash end def data return @data if data_loaded? raw_json = REST.get(URL, 'X-EY-Cloud-Token' => EY::Metadata.ey_cloud_token).body raw_data = ActiveSupport::JSON.decode raw_json matching_environment_hshs = raw_data['environments'].select do |environment_hsh| if EY::Metadata.environment_name environment_hsh['name'] == EY::Metadata.environment_name else environment_hsh['apps'].any? { |app_hsh| app_hsh['repository_uri'] == EY::Metadata.repository_uri } end end raise RuntimeError, "[engineyard-metadata gem] Found too many environments: #{matching_environment_hshs.map { |hsh| hsh['name'] }.join(', ')}" if matching_environment_hshs.length > 1 @data = matching_environment_hshs[0] raise RuntimeError, "[engineyard-metadata gem] Couldn't find an EngineYard environment with the repository uri #{repository_uri}" unless data_loaded? @data end end end end