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fog--fog/lib/fog/core/credentials.rb
2011-02-16 16:41:39 -08:00

86 lines
2.3 KiB
Ruby

require 'yaml'
module Fog
require 'fog/core/deprecation'
# Assign a new credential to use from configuration file
# @param [String, Symbol] new_credential name of new credential to use
# @ return [String, Symbol] name of the new credential
def self.credential=(new_credential)
@credential = new_credential
end
# @return [String, Symbol] The credential to use in Fog
def self.credential
@credential ||= :default
end
# @return [String] The path for configuration_file
def self.credentials_path
@credential_path ||= File.expand_path(ENV["FOG_RC"] || '~/.fog')
end
# @return [String] The new path for credentials file
def self.credentials_path=(new_credentials_path)
@credential_path = new_credentials_path
end
# @return [Hash] The credentials pulled from the configuration file
# @raise [LoadError] Configuration unavailable in configuration file
def self.credentials
@credentials ||= begin
if File.exists?(credentials_path)
credentials = YAML.load_file(credentials_path)
(credentials && credentials[credential]) or raise LoadError.new(missing_credentials)
else
{}
end
end
end
private
# @return [String] The error message that will be raised, if credentials cannot be found
def self.missing_credentials
<<-YML
Missing Credentials
To run as '#{credential}', add the following to your resource config file: #{credentials_path}
An alternate file may be used by placing its path in the FOG_RC environment variable
#######################################################
# Fog Credentials File
#
# Key-value pairs should look like:
# :aws_access_key_id: 022QF06E7MXBSAMPLE
:#{credential}:
:aws_access_key_id:
:aws_secret_access_key:
:bluebox_api_key:
:bluebox_customer_id:
:brightbox_client_id:
:brightbox_secret:
:go_grid_api_key:
:go_grid_shared_secret:
:google_storage_access_key_id:
:google_storage_secret_access_key:
:linode_api_key:
:local_root:
:new_servers_password:
:new_servers_username:
:public_key_path:
:private_key_path:
:rackspace_api_key:
:rackspace_username:
:slicehost_password:
:terremark_username:
:terremark_password:
:zerigo_email:
:zerigo_token:
#
# End of Fog Credentials File
#######################################################
YML
end
end