Class: Interferon::HostSources::AwsRds

Inherits:
Object
  • Object
show all
Defined in:
lib/interferon/host_sources/aws_rds.rb

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ AwsRds

Returns a new instance of AwsRds.



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# File 'lib/interferon/host_sources/aws_rds.rb', line 5

def initialize(options)
  missing = %w{access_key_id secret_access_key}.reject{|r| options.key?(r)}

  AWS.config({
      :access_key_id => options['access_key_id'],
      :secret_access_key => options['secret_access_key']
  }) if missing.empty?

  # initialize a list of regions to check
  if options['regions'] && !options['regions'].empty?
    @regions = options['regions']
  else
    @regions = AWS::regions.map(&:name)
  end
end

Instance Method Details

#list_hosts ⇒ Object 



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# File 'lib/interferon/host_sources/aws_rds.rb', line 21

def list_hosts
  hosts = []

  @regions.each do |region|
    rds = AWS::RDS.new(:region => region)

    AWS.memoize do
      rds.instances.each do |instance|
        # get the tags for the instance
        arn = arn(region, instance.id)
        tag_list = rds.client.list_tags_for_resource(:resource_name => arn)[:tag_list]
        tags = Hash[ tag_list.map { |h| [h[:key], h[:value]] } ]

        tags['owners'] ||= ''
        tags['owner_groups'] ||= ''

        # build the host data for this instance
        hosts << {
          :source => 'aws_rds',
          :region => region,
          :instance_id => instance.id,
          :db_name => instance.db_name,
          :engine => instance.engine,
          :engine_version => instance.engine_version,

          # metrics
          :allocated_storage => instance.allocated_storage,
          :iops => instance.iops,

          # replication info
          :is_replica => !instance.read_replica_source_db_instance_identifier.nil?,
          :replica_source_name => instance.read_replica_source_db_instance_identifier,
          :replica_names => instance.read_replica_db_instance_identifiers.join(','),
          :replicas => instance.read_replica_db_instance_identifiers.count,

          :owners => tags['owners'].split(','),
          :owner_groups => tags['owner_groups'].split(','),

          :db_env => tags['db_env'],
          :db_role => tags['db_role'],
        }
      end
    end
  end

  return hosts
end