Class: DatadogMetrics

Inherits:
Object
  • Object
show all
Defined in:
lib/fluent/plugin/datadog_metrics_sender.rb

Instance Method Summary collapse

Constructor Details

#initialize(apikey, url) ⇒ DatadogMetrics

Returns a new instance of DatadogMetrics.



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# File 'lib/fluent/plugin/datadog_metrics_sender.rb', line 9

def initialize(apikey, url)
  @apikey = apikey
  @url = url
end

Instance Method Details

#add_custom_data(ddtags, record) ⇒ Object 



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# File 'lib/fluent/plugin/datadog_metrics_sender.rb', line 14

def add_custom_data(ddtags, record)
  if ddtags.length() > 0
    record_series = record['series']
    data_array = []
    record_series.each do |interim_data|
      interim_data['tags'] ||= []
      interim_data['tags'].push(*ddtags)
      data_array << interim_data
    end
    record['series'] = data_array
    return record
  end
  return record
end

#send_metrics(ddtags, record, http_proxy, verify_ssl, request_timeout, gzip_compression, logger) ⇒ Object 



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# File 'lib/fluent/plugin/datadog_metrics_sender.rb', line 29

def send_metrics(ddtags, record, http_proxy, verify_ssl, request_timeout, gzip_compression, logger)
  # Get the current local timestamp
  logger.info("Additional tags to be added to metrics are:", ddtags)
  metrics_data = add_custom_data(ddtags, record)
  logger.info("Sending received metrics data")

  if http_proxy
    RestClient.proxy = URI.parse(http_proxy)
    logger.info("Using http_proxy param to set proxy for request. Proxy url: #{RestClient.proxy}")
  elsif ENV['HTTP_PROXY']
    RestClient.proxy = ENV['HTTP_PROXY']
    logger.info("Using 'HTTP_PROXY' environment variable to set proxy for request. Proxy url: #{RestClient.proxy}")
  elsif ENV['http_proxy']
    RestClient.proxy = ENV['http_proxy']
    logger.info("Using 'http_proxy' environment variable to set proxy for request. Proxy url: #{RestClient.proxy}")
  elsif ENV['https_proxy']
    RestClient.proxy = ENV['https_proxy']
    logger.info("Using 'https_proxy' environment variable to set proxy for request. Proxy url: #{RestClient.proxy}")
  end

  headers = {
    'DD-API-KEY': @apikey, 
    content_type: :json
  }

  payload = metrics_data.to_json
  if gzip_compression
    payload = Utility.compress_payload(metrics_data, logger)
    headers[:'Content-Encoding'] = 'gzip'
  end

  request = RestClient::Request.new(
      method: :post,
      url: @url,
      payload: payload,
      headers: headers,
      verify_ssl: verify_ssl,
      timeout: request_timeout
  )

  request.execute do |response, request, result|
    case response.code
    when 202
      logger.info("Metrics were successfully sent to DataDog")
      return response.body
    else
      logger.info("Cannot send metrics to DataDog url: %s. Received response code: %d, Response body: %s"  % [@url, response.code, response.body])
    end
  end
end