Class: LogglyOutput

Inherits:
Fluent::Output
  • Object
show all
Defined in:
lib/fluent/plugin/out_loggly.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 



28
29
30
31
 
# File 'lib/fluent/plugin/out_loggly.rb', line 28

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

#emit(tag, es, chain) ⇒ Object 



58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/fluent/plugin/out_loggly.rb', line 58

def emit(tag, es, chain)
  chain.next
  es.each {|time,record|
    record_json = Yajl::Encoder.encode(record)
    $log.debug "Record sent #{record_json}"
    uri = pick_uri(record)
    post = Net::HTTP::Post.new uri.path
    post.body = record_json
    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

#pick_uri(record) ⇒ Object 



40
41
42
43
44
45
46
47
48
49
50
51
52
 
# File 'lib/fluent/plugin/out_loggly.rb', line 40

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 



54
55
56
 
# File 'lib/fluent/plugin/out_loggly.rb', line 54

def shutdown
  super
end

#start ⇒ Object 



33
34
35
36
37
38
 
# File 'lib/fluent/plugin/out_loggly.rb', line 33

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