Module: Fog::AWS::CredentialFetcher::ServiceMethods

Included in:
AutoScaling, Fog::AWS::CloudFormation, Fog::AWS::CloudWatch, DynamoDB, ELB, EMR, ElasticBeanstalk, Elasticache, Glacier, RDS, SES, SNS, SQS, SimpleDB, CDN::AWS, Compute::AWS, DNS::AWS, Storage::AWS
Defined in:
lib/fog/aws/credential_fetcher.rb

Instance Method Summary collapse

Instance Method Details

#fetch_credentials(options) ⇒ Object 



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# File 'lib/fog/aws/credential_fetcher.rb', line 8

def fetch_credentials(options)
  if options[:use_iam_profile]
    begin
      connection = options[:connection] || Excon.new(INSTANCE_METADATA_HOST)
      role_name = connection.get(:path => INSTANCE_METADATA_PATH, :expects => 200).body
      role_data = connection.get(:path => INSTANCE_METADATA_PATH+role_name, :expects => 200).body

      session = Fog::JSON.decode(role_data)
      credentials = {}
      credentials[:aws_access_key_id] = session['AccessKeyId']  
      credentials[:aws_secret_access_key] = session['SecretAccessKey']
      credentials[:aws_session_token] = session['Token']
      credentials[:aws_credentials_expire_at] = Time.xmlschema session['Expiration']
      #these indicate the metadata service is unavailable or has no profile setup
      credentials
    rescue Excon::Errors::Error => e
      Fog::Logger.warning("Unable to fetch credentuals: #{e.message}")
      super
    end
  else
    super
  end
end