Class: Fluent::Plugin::BeaconOutput

Inherits:
Output
  • Object
show all
Defined in:
lib/fluent/plugin/out_f5_beacon.rb

Constant Summary collapse

DEFAULT_BUFFER_TYPE = 
"memory"
FORMATTED_RESULT_FOR_INVALID_RECORD = 
''.freeze

Instance Method Summary collapse

Constructor Details

#initialize ⇒ BeaconOutput

Returns a new instance of BeaconOutput.



57
58
59
60
61
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 57

def initialize
  super
  @seq = 0
  @prev_timestamp = nil
end

Instance Method Details

#configure(conf) ⇒ Object

Raises:

  • (Fluent::ConfigError) 


63
64
65
66
67
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 63

def configure(conf)
  compat_parameters_convert(conf, :buffer)
  super
  raise Fluent::ConfigError, "'tag' in chunk_keys is required." if not @chunk_key_tag
end

#create_request(payload) ⇒ Object 



191
192
193
194
195
196
197
198
199
200
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 191

def create_request(payload)
  uri = URI.parse(@endpoint)

  req = Net::HTTP.const_get("Post").new(uri.request_uri)
  req['X-F5-Ingestion-Token'] = @token
  req['Content-Type'] = 'text/plain'
  req.body = payload

  return req, uri
end

#format(tag, time, record) ⇒ Object 



76
77
78
79
80
81
82
83
84
85
86
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 76

def format(tag, time, record)
  # Remove nil/empty values
  record.delete_if { |k, v| v.nil? || v.to_s.empty? }

  if record.empty?
    log.warn "skip record '#{record}' in '#{tag}', because record has no values"
    FORMATTED_RESULT_FOR_INVALID_RECORD
  else
    [precision_time(time), record].to_msgpack
  end
end

#formatted_to_msgpack_binary ⇒ Object 



92
93
94
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 92

def formatted_to_msgpack_binary
  true
end

#handle_payload(payload) ⇒ Object 



186
187
188
189
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 186

def handle_payload(payload)
  req, uri = create_request(payload)
  send_request(req, uri)
end

#http_opts(uri) ⇒ Object

end send_request



224
225
226
227
228
229
230
231
232
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 224

def http_opts(uri)
  opts = {
      :use_ssl => true,
      :verify_mode => OpenSSL::SSL::VERIFY_PEER,
      :ssl_version => :TLSv1_2,
      :ciphers => ['AES128-GCM-SHA256', 'AES128-SHA256', 'AES256-GCM-SHA384', 'AES256-SHA256', 'ECDHE-RSA-AES128-GCM-SHA256', 'ECDHE-RSA-AES128-SHA256', 'ECDHE-RSA-AES256-GCM-SHA384', 'ECDHE-RSA-AES256-SHA384'],
  }
  opts
end

#multi_workers_ready? ⇒ Boolean

Returns:

  • (Boolean) 


96
97
98
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 96

def multi_workers_ready?
  true
end

#precision_time(time) ⇒ Object 



181
182
183
184
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 181

def precision_time(time)
  # nsec is supported from v0.14
  time * (10 ** 9) + (time.is_a?(Integer) ? 0 : time.nsec)
end

#send_request(req, uri) ⇒ Object 



202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 202

def send_request(req, uri)
  res = nil

  begin
    res = Net::HTTP.start(uri.host, uri.port, **http_opts(uri)) {|http| http.request(req) }

  rescue => e # rescue all StandardErrors
    # server didn't respond
    log.warn "Net::HTTP.#{req.method.capitalize} raises exception: #{e.class}, '#{e.message}'"
    raise e
  else
    unless res and res.is_a?(Net::HTTPSuccess)
      res_summary = if res
                      "#{res.code} #{res.message} #{res.body}"
                    else
                      "res=nil"
                    end
      log.warn "failed to #{req.method} #{uri} (#{res_summary})"
    end #end unless
  end # end begin
end

#serialize(points) ⇒ Object 



175
176
177
178
179
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 175

def serialize(points)
  points.map do |point|
    InfluxDB::PointValue.new(point).dump
  end.join("\n".freeze)
end

#shutdown ⇒ Object 



88
89
90
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 88

def shutdown
  super
end

#start ⇒ Object 



69
70
71
72
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 69

def start
  super
  log.info "starting F5 Beacon plugin..."
end

#write(chunk) ⇒ Object 



100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 100

def write(chunk)
  points = []
  tag = chunk.metadata.tag
  chunk.msgpack_each do |time, record|
    timestamp = record.delete(@time_key) || time
    if tag_keys.empty? && !@auto_tags
      values = record
      tags = {}
    else
      values = {}
      tags = {}
      record.each_pair do |k, v|
        if (@auto_tags && v.is_a?(String)) || @tag_keys.include?(k)
          # If the tag value is not nil, empty, or a space, add the tag
          normalized_value = v.to_s.strip
          if normalized_value != ''
            tags[k] = normalized_value
          end
        else
          values[k] = v
        end
      end
    end

    if @sequence_tag
      if @prev_timestamp == timestamp
        @seq += 1
      else
        @seq = 0
      end
      tags[@sequence_tag] = @seq
      @prev_timestamp = timestamp
    end

    values.delete_if do |k, v|
      if v.is_a?(Array) || v.is_a?(Hash)
        log.warn "array/hash field '#{k}' discarded; consider using a plugin to map"
        true
      end
    end

    if values.empty?
      log.warn "skip record '#{record}', because one value is required"
      next
    end

    if @cast_number_to_float
      values.each do |key, value|
        if value.is_a?(Integer)
          values[key] = Float(value)
        end
      end
    end

    tags["beacon-fluent-source"] = @source_name

    point = {
        timestamp: timestamp,
        series: @measurement || tag,
        values: values,
        tags: tags,
    }
    points << point
  end

  if points.length > 0
    write_points(points)
  end
end

#write_points(points) ⇒ Object 



170
171
172
173
 
# File 'lib/fluent/plugin/out_f5_beacon.rb', line 170

def write_points(points)
  payload = serialize(points)
  handle_payload(payload)
end