Module: Fluent::Mixin::Deis

Included in:
Plugin::DeisOutput
Defined in:
lib/fluent/mixin/deis.rb

Instance Method Summary collapse

Instance Method Details

#build_series(message) ⇒ Object 



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# File 'lib/fluent/mixin/deis.rb', line 21

def build_series(message)
  metric = parse_router_log(message['log'], message['kubernetes']['host'])
  if metric
    metric_timestamp = (
      metric['timestamp'].to_f * 1_000_000_000 + Time.now.nsec
    ).to_i # Using current nanosecond resolution to avoid replacing points

    tags = { app: metric['app'], status_code: metric['status_code'], host: metric['host'] }
    data = [
      {
        series: 'deis_router_request_time_ms',
        values: { value: metric['request_time'] },
        tags: tags,
        timestamp: metric_timestamp
      },
      {
        series: 'deis_router_response_time_ms',
        values: { value: metric['response_time'] },
        tags: tags,
        timestamp: metric_timestamp
      },
      {
        series: 'deis_router_bytes_sent',
        values: { value: metric['bytes_sent'] },
        tags: tags,
        timestamp: metric_timestamp
      }
    ]
    return data
  end
  nil
end

#from_container?(message, regex) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/mixin/deis.rb', line 14

def from_container?(message, regex)
  if kubernetes? message
    return true unless Regexp.new(regex).match(message['kubernetes']['container_name']).nil?
  end
  false
end

#from_router?(message) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/mixin/deis.rb', line 10

def from_router?(message)
  from_container?(message, 'deis-router')
end

#kubernetes?(message) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/mixin/deis.rb', line 6

def kubernetes?(message)
  !message['kubernetes'].nil?
end

#parse_router_log(message, host) ⇒ Object

href="2016-05-31T16:56:12+00:00">log”=>“ - foo - 10.164.1.1 - - - 200 - "GET / HTTP/1.0" - 211 - "-" - "ApacheBench/2.3" - "~^foo\x5C.(?<domain>.+)$" - 10.167.243.4:80 - foo.devart.io - 0.002 - 0.046n” request_time - request processing time in seconds with a milliseconds resolution; time elapsed between the first bytes were read from the client and the log write after the last bytes were sent to the client response_time - keeps time spent on receiving the response from the upstream server; the time is kept in seconds with millisecond resolution.



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# File 'lib/fluent/mixin/deis.rb', line 57

def parse_router_log(message, host)
  split_message = message.split(' - ')
  return nil if split_message.length < 14
  metric = {}
  metric['timestamp'] = Time.parse(split_message[0])
  metric['app'] = split_message[1].strip
  metric['status_code'] = split_message[4].strip
  metric['bytes_sent'] = split_message[6].strip.to_f
  metric['response_time'] = split_message[12].strip.to_f
  metric['request_time'] = split_message[13].strip.to_f
  metric['host'] = host
  return metric
rescue Exception => e # rubocop:disable RescueException
  puts "Error:#{e.message}"
  return nil
end