Class: Fluent::S3Output
- Inherits:
-
TimeSlicedOutput
- Object
- TimeSlicedOutput
- Fluent::S3Output
- Includes:
- Mixin::ConfigPlaceholders
- Defined in:
- lib/fluent/plugin/out_s3.rb
Instance Attribute Summary collapse
-
#bucket ⇒ Object
readonly
Returns the value of attribute bucket.
Instance Method Summary collapse
- #configure(conf) ⇒ Object
- #format(tag, time, record) ⇒ Object
-
#initialize ⇒ S3Output
constructor
A new instance of S3Output.
- #placeholders ⇒ Object
- #start ⇒ Object
- #write(chunk) ⇒ Object
Constructor Details
#initialize ⇒ S3Output
Returns a new instance of S3Output.
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# File 'lib/fluent/plugin/out_s3.rb', line 11 def initialize super require 'aws-sdk' require 'zlib' require 'time' require 'tempfile' require 'open3' @use_ssl = true end |
Instance Attribute Details
#bucket ⇒ Object (readonly)
Returns the value of attribute bucket.
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# File 'lib/fluent/plugin/out_s3.rb', line 38 def bucket @bucket end |
Instance Method Details
#configure(conf) ⇒ Object
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# File 'lib/fluent/plugin/out_s3.rb', line 46 def configure(conf) super if use_ssl = conf['use_ssl'] if use_ssl.empty? @use_ssl = true else @use_ssl = Config.bool_value(use_ssl) if @use_ssl.nil? raise ConfigError, "'true' or 'false' is required for use_ssl option on s3 output" end end end @ext, @mime_type = case @store_as when 'gzip' ['gz', 'application/x-gzip'] when 'lzo' check_command('lzop', 'LZO') @command_parameter = '-qf1' if @command_parameter.nil? ['lzo', 'application/x-lzop'] when 'lzma2' check_command('xz', 'LZMA2') @command_parameter = '-qf0' if @command_parameter.nil? ['xz', 'application/x-xz'] when 'json' ['json', 'application/json'] else ['txt', 'text/plain'] end if format_json = conf['format_json'] $log.warn "format_json is deprecated. Use 'format json' instead" conf['format'] = 'json' else conf['format'] = @format end @formatter = TextFormatter.create(conf) if @localtime @path_slicer = Proc.new {|path| Time.now.strftime(path) } else @path_slicer = Proc.new {|path| Time.now.utc.strftime(path) } end end |
#format(tag, time, record) ⇒ Object
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# File 'lib/fluent/plugin/out_s3.rb', line 115 def format(tag, time, record) @formatter.format(tag, time, record) end |
#placeholders ⇒ Object
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# File 'lib/fluent/plugin/out_s3.rb', line 42 def placeholders [:percent] end |
#start ⇒ Object
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# File 'lib/fluent/plugin/out_s3.rb', line 96 def start super = {} if @aws_key_id && @aws_sec_key [:access_key_id] = @aws_key_id [:secret_access_key] = @aws_sec_key end [:region] = @s3_region if @s3_region [:endpoint] = @s3_endpoint if @s3_endpoint [:proxy_uri] = @proxy_uri if @proxy_uri [:use_ssl] = @use_ssl @s3 = AWS::S3.new() @bucket = @s3.buckets[@s3_bucket] check_apikeys if @check_apikey_on_start ensure_bucket end |
#write(chunk) ⇒ Object
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# File 'lib/fluent/plugin/out_s3.rb', line 119 def write(chunk) i = 0 previous_path = nil begin s3path = Time.now.utc.strftime "#{@s3_object_key_format}.json.gz" if (i > 0) && (s3path == previous_path) raise "duplicated path is generated. use %{index} in s3_object_key_format: path = #{s3path}" end i += 1 previous_path = s3path end while @bucket.objects[s3path].exists? tmp = Tempfile.new("s3-") begin if @store_as == "gzip" w = Zlib::GzipWriter.new(tmp) chunk.write_to(w) w.close elsif @store_as == "lzo" w = Tempfile.new("chunk-tmp") chunk.write_to(w) w.close tmp.close # We don't check the return code because we can't recover lzop failure. system "lzop #{@command_parameter} -o #{tmp.path} #{w.path}" elsif @store_as == "lzma2" w = Tempfile.new("chunk-xz-tmp") chunk.write_to(w) w.close tmp.close system "xz #{@command_parameter} -c #{w.path} > #{tmp.path}" else chunk.write_to(tmp) tmp.close end @bucket.objects[s3path].write(Pathname.new(tmp.path), {:content_type => @mime_type, :reduced_redundancy => @reduced_redundancy}) ensure tmp.close(true) rescue nil w.close rescue nil w.unlink rescue nil end end |