Class: LogglyOutputBuffred

Inherits:
Fluent::BufferedOutput
  • Object
show all
Defined in:
lib/fluent/plugin/out_loggly_buffered.rb

Overview

Copyright © 2012 Patrik Antonsson

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.

Instance Method Summary collapse

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_loggly_buffered.rb', line 34

def configure(conf)
  super
  $log.debug "Configured loggly url: #{@loggly_url}"
end

#format(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_loggly_buffered.rb', line 64

def format(tag, time, record)
  if time.is_a?(Integer)
    [tag, time, record].to_msgpack
  else
    Fluent::Engine.msgpack_factory.packer.write([tag, time, record]).to_s
  end
end

#pick_uri(record) ⇒ Object 



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# File 'lib/fluent/plugin/out_loggly_buffered.rb', line 46

def pick_uri(record)
  # if kubernetes pod has loggly url as annotation, use it
  if record.dig('kubernetes', 'annotations', 'solarwinds_io/loggly_url')
    url = record['kubernetes']['annotations']['solarwinds_io/loggly_url']
    # else if kubernetes namespace has papertrail destination as annotation, use it
  elsif record.dig('kubernetes', 'namespace_annotations', 'solarwinds_io/loggly_url')
    url = record['kubernetes']['namespace_annotations']['solarwinds_io/loggly_url']
    # else use pre-configured destination
  else
    url = @loggly_url
  end
  URI url
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/out_loggly_buffered.rb', line 60

def shutdown
  super
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_loggly_buffered.rb', line 39

def start
  super
  require 'net/http/persistent'
  @http = Net::HTTP::Persistent.new 'fluentd-plugin-loggly', :ENV
  @http.headers['Content-Type'] = 'text'
end

#write(chunk) ⇒ Object 



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# File 'lib/fluent/plugin/out_loggly_buffered.rb', line 72

def write(chunk)
  chunk.msgpack_each {|tag,time,record|
    records = []
    record['timestamp'] ||= Time.at(time).iso8601(@time_precision_digits) if @output_include_time
    records.push(Yajl::Encoder.encode(record))
    uri = pick_uri(record)
    $log.debug "#{records.length} records sent"
    post = Net::HTTP::Post.new uri.path
    post.body = records.join("\n")
    begin
      response = @http.request uri, post
      $log.debug "HTTP Response code #{response.code}"
      if response.code != '200'
        $log.error "Received HTTP #{response.code} from #{uri}: #{response.body}"
      end
    rescue => e
      $log.error "Error posting to #{uri}: #{e}"
    end
  }

end