Class: Fluent::Plugin::LokiOutput
- Inherits:
-
Output
- Object
- Output
- Fluent::Plugin::LokiOutput
- Defined in:
- lib/fluent/plugin/out_loki.rb
Overview
Subclass of Fluent Plugin Output
Constant Summary collapse
- DEFAULT_BUFFER_TYPE =
'memory'
Instance Attribute Summary collapse
-
#record_accessors ⇒ Object
Returns the value of attribute record_accessors.
Instance Method Summary collapse
- #configure(conf) ⇒ Object
- #generic_to_loki(chunk) ⇒ Object
- #http_opts(uri) ⇒ Object
- #multi_workers_ready? ⇒ Boolean
-
#write(chunk) ⇒ Object
flush a chunk to loki.
Instance Attribute Details
#record_accessors ⇒ Object
Returns the value of attribute record_accessors.
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# File 'lib/fluent/plugin/out_loki.rb', line 32 def record_accessors @record_accessors end |
Instance Method Details
#configure(conf) ⇒ Object
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# File 'lib/fluent/plugin/out_loki.rb', line 73 def configure(conf) compat_parameters_convert(conf, :buffer) super @record_accessors = {} conf.elements.select { |element| element.name == 'label' }.each do |element| element.each_pair do |k, v| element.has_key?(k) # rubocop:disable Style/PreferredHashMethods #to suppress unread configuration warning v = k if v.empty? @record_accessors[k] = record_accessor_create(v) end end @remove_keys_accessors = [] @remove_keys.each do |key| @remove_keys_accessors.push(record_accessor_create(key)) end if !@key.nil? && !@cert.nil? @cert = OpenSSL::X509::Certificate.new(File.read(@cert)) if @cert @key = OpenSSL::PKey.read(File.read(@key)) if @key if !@key.is_a?(OpenSSL::PKey::RSA) && !@key.is_a?(OpenSSL::PKey::DSA) raise "Unsupported private key type #{key.class}" end end if !@ca_cert.nil? && !File.exist?(@ca_cert) raise "CA certificate file #{@ca_cert} not found" end end |
#generic_to_loki(chunk) ⇒ Object
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# File 'lib/fluent/plugin/out_loki.rb', line 162 def generic_to_loki(chunk) # log.debug("GenericToLoki: converting #{chunk}") streams = chunk_to_loki(chunk) payload = payload_builder(streams) payload end |
#http_opts(uri) ⇒ Object
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# File 'lib/fluent/plugin/out_loki.rb', line 107 def http_opts(uri) opts = { use_ssl: uri.scheme == 'https' } opts end |
#multi_workers_ready? ⇒ Boolean
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# File 'lib/fluent/plugin/out_loki.rb', line 103 def multi_workers_ready? true end |
#write(chunk) ⇒ Object
flush a chunk to loki
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# File 'lib/fluent/plugin/out_loki.rb', line 115 def write(chunk) # streams by label payload = generic_to_loki(chunk) body = { 'streams' => payload } # add ingest path to loki url uri = URI.parse(url + '/api/prom/push') req = Net::HTTP::Post.new( uri.request_uri ) req.add_field('Content-Type', 'application/json') req.add_field('X-Scope-OrgID', @tenant) if @tenant req.body = Yajl.dump(body) req.basic_auth(@username, @password) if @username opts = { use_ssl: uri.scheme == 'https' } if !@cert.nil? && !@key.nil? opts = opts.merge( verify_mode: OpenSSL::SSL::VERIFY_PEER, cert: @cert, key: @key ) end if !@ca_cert.nil? opts = opts.merge( ca_file: @ca_cert ) end log.debug "sending #{req.body.length} bytes to loki" res = Net::HTTP.start(uri.hostname, uri.port, **opts) { |http| http.request(req) } unless res&.is_a?(Net::HTTPSuccess) res_summary = if res "#{res.code} #{res.} #{res.body}" else 'res=nil' end log.warn "failed to #{req.method} #{uri} (#{res_summary})" log.warn Yajl.dump(body) end end |