Rails × Elasticsearch - Speaker Deck

Rails × Elasticsearch

by Hirokazu Nishioka

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Rails × Elasticsearch 2016-08-03 Speee Coffee Meetup #01 2016-08-03 Speee Coffee Meetup #01 1

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ΤϯδχΞϦϯάͱ๻ • ੢Ԭ׮݉ ʢtwitter: @nisshieeorgʛgithub: @nisshieeʣ • גࣜձࣾSpeee • αʔόαΠυεϖγϟϦετ • ΠΤ΢ʔϧʢieul.jpʣ্ཱͪ͛ • ݱࡏ͸ҩྍࣄۀͰϦʔυΤϯδχΞ • Ruby, Scala, Java, JavaScript, ੲAIઐ߈ͯͨ͠ 2016-08-03 Speee Coffee Meetup #01 2

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ίʔώʔͱ๻ • ΤϯδϣΠ੎ • ՈͰ͸ϚϯσϦϯങͬͯυϦοϓ • ਫग़͠ίʔώʔ૷ஔͷڞಉߪೖΛओ ಋ • ϛϧΫενʔϜ࿅शத • ίʔώʔͱݴ͑͹Java 2016-08-03 Speee Coffee Meetup #01 3

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ຊ୊ Rails × Elasticsearch ͰԿ͔࡞ͬͨ͜ͱ͋Δͻͱʔʁ ! 2016-08-03 Speee Coffee Meetup #01 4

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Ruby × Elasticsearch ͓͞Β͍ 2016-08-03 Speee Coffee Meetup #01 5

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ؔ࿈ϥΠϒϥϦ 2ϦϙδτϦ • elastic/elasticsearch-ruby • elastic/elasticsearch-rails 2016-08-03 Speee Coffee Meetup #01 6

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elastic/elasticsearch-ruby 6gems • elasticsearch-transport • elasticsearch-api • elasticsearch • elasticsearch-dsl • elasticsearch-extensions • elasticsearch-watcher 2016-08-03 Speee Coffee Meetup #01 7

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elasticsearch-transport • Ұ൪௿ϨΠϠʔΛ୲͏gem • I/F͸HTTPΫϥΠΞϯτϥΠϒϥϦͬΆ͍·· • ϊʔυݕࡧɺϚϧνίωΫγϣϯɺϦΫΤετ෼ࢄɺϩΪϯάɺϦτ ϥΠɺJSONγϦΞϥΠζ/σγϦΞϥΠζɺ౳Λಁ໌Խ • ݸʑͷػೳ͸ϓϥΨϒϧ • Elasticsearch::Transport::Client • def perform_request(method, path, params, body) 2016-08-03 Speee Coffee Meetup #01 8

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elasticsearch-api • elasticsearch-transportͷ1্ͭͷϨΠϠʔΛ୲౰ • elasticsearch͕࣋ͭݸʑͷػೳΛRubyϝιουԽ • mixin͞ΕΔ͚ͩͷModule • Elasticsearch::API • mixinઌʹཁٻ͢Δ΋ͷ • def perform_request(method, path, params, body) 2016-08-03 Speee Coffee Meetup #01 9

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elasticsearch require 'elasticsearch/transport' require 'elasticsearch/api' module Elasticsearch module Transport class Client include Elasticsearch::API end end end 2016-08-03 Speee Coffee Meetup #01 10

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elastic/elasticsearch-ruby ͦͷଞ • elasticsearch-dsl • QueryDSLΛ૊ΈཱͯΔͨΊͷ಺෦DSL • elasticsearch-extensions • backup౳ͷӡ༻ࢧԉܥػೳ͍͔ͭ͘ • elasticsearch-watcher • watcher Λ੍ޚ͢ΔAPIΛఏڙ 2016-08-03 Speee Coffee Meetup #01 11

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elastic/elasticsearch-rails 3gems • elasticsearch-model • elasticsearch-persistence • elasticsearch-rails 2016-08-03 Speee Coffee Meetup #01 12

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elasticsearch-model • ActiveRecord::Base Λܧঝͨ͠Modelʹincludeͯ͠࢖͏ • Elasticsearch::Model • search ౳ͷΫϥεϝιου͕ੜ͑Δ • Elasticsearch::Model::Callbacks • after_commit ʹelasticsearchϦΫΤετ͕ొ࿥͞ΕΔ • RDBͷϨϓϦΧΛelasticsearchʹ֨ೲ͢ΔܗΛ૝ఆ 2016-08-03 Speee Coffee Meetup #01 13

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elasticsearch-persistence • RDBͱ͸ಠཱͨ͠σʔλΛelasticsearchͰѻ͏ • 2ύλʔϯͷ࣮૷͕Մೳ • ೚ҙͷΫϥεͷEntityΛѻ͏RepositoryΛ࡞੒ • ܰྔDDDͬΆ͍࣮૷ʹͳΔ • Virtus֦ு • Modelར༻ଆ͸ɺARΛར༻͢Δͷͱ͍ۙΠϝʔδʹͳΔ 2016-08-03 Speee Coffee Meetup #01 14

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elasticsearch-rails (gem) • ӡ༻ࢧԉܥػೳ͕͍͔ͭ͘ 2016-08-03 Speee Coffee Meetup #01 15

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Ruby × Elasticsearch ͓͞Β͍ ͷ·ͱΊ • ͔ͳΓॆ࣮ͯ͠Δҹ৅ • ௒τϥϑΟοΫʹ଱͑ΒΕΔ͔͸ɾɾɾ • ͢Έ·ͤΜɺͦͷϨϕϧͰຊ൪ӡ༻ͨ͜͠ͱͳͯ͘ɾɾɾ • ίΞ෦෼͕ϓϥΨϒϧʹͳ͍ͬͯΔͷͰɺؾ߹Ͱ৐Γ੾Δ ͜ͱ͸Ͱ͖ͦ͏ • RailsΛબΜͩҎ্ɺఘΊͯԣʹฒ΂Δʢۚͷ஄ؙʣ 2016-08-03 Speee Coffee Meetup #01 16

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ۀ຿Ͱ Rails × Elasticsearch Λ࢖͏ 2016-08-03 Speee Coffee Meetup #01 17

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ϓϩδΣΫτݱঢ়·ͱΊ • ։ൃதʢ7݄։ൃ։࢝ɺ9݄Ϋϩʔζυβ1ϦϦʔε͍ͨ͠ʣ • elasticsearch-persistenceΛར༻ • ʮ࡞Γ͍ͨػೳΛ࡞Δʯ্Ͱ͸શ͘໰୊ͳ͍ • ʮRailsͬΆ͍ίʔυʯ΋ॻ͚Δ • ༨ஊɿESͷूܭ݁ՌऔಘΛAPIԽ͠ɺreact+redux+react-routerͰ࡞ ͬͨSPA͔Βϩʔυ͢ΔΞϓϦέʔγϣϯؾ͍͍࣋ͪ ͕ɾɾɾ 2016-08-03 Speee Coffee Meetup #01 18

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։ൃϑϩʔ͕RailsͬΆ͘ͳΒͳ͍ 2016-08-03 Speee Coffee Meetup #01 19

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ཧ૝ͷʮRailsͬΆ͍։ൃϑϩʔʯ • git clone • vim conﬁg/database.yml • rails db:create • rails db:migrate • rails db:seed • rails server 2016-08-03 Speee Coffee Meetup #01 20

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ཧ૝ͷʮRailsͬΆ͍։ൃϑϩʔʯ • rspec • git push • CI؀ڥͰ΋DB࡞ͬͯςετ͕ճΔ Έ͍ͨͳ 2016-08-03 Speee Coffee Meetup #01 21

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๻ͷ৺ͷڣͼ Elasticsearch͸RDBͱҧͬͯɺIndexͷઃఆʢಛʹAnalysis·Θ ΓʣʹΑͬͯݕࡧ݁Ռ͕มΘΔͨΊɺʮ૝ఆ֎ͷݕࡧ݁Ռʯό ά͕ى͖΍͍͢ɻ ͳͷͰɺRDBͱಉ͡Α͏ʹɺઃఆΛίʔυԽ͠ɺಉ͡ઃఆͷ্ ͰϩʔΧϧςετɾCIςετ͕ճΔঢ়گΛ࡞Γɺ͔ͭຊ൪΋ಉ ͡ઃఆͰಈ͘͜ͱΛ୲อ͍ͨ͠ʂ 2016-08-03 Speee Coffee Meetup #01 22

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࣮ݱʹ޲͚ͯ 1. ͜ͷ৔Ͱɺྑ͍஌ݟΛ͍࣋ͬͯΔํ͕͍ͨΒฉ͍ͯΈΔ 2. config/database.yml Έ͍ͨʹYAML+ERBͰ઀ଓઃఆͰ͖ ΔΑ͏ʹ͢Δ 3. index, mappingΛruby಺෦DSLͰఆٛͯ͠ɺ rails db:schema:load Έ͍ͨͳػೳΛ࡞Δ 4. ͕Μ͹ͬͯ rails db:migrate ʹ͋ͨΔػೳΛ࡞Δ 2016-08-03 Speee Coffee Meetup #01 23

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ͨͿΜɺʮ4. migrationͷ࣮ݱʯ͕೉͍͠ • mappingͷ௥Ճ͚ͩͰྑ͍৔߹ͱɺreindex͕ඞཁͳ৔߹͕ ͋Δ • reindexΛແఀࢭͰ΍Δͷ͸ଟগͷςΫχοΫ͕ඞཁ • ʮͦ͜·ͰࣗಈͰ΍ͬͪΌ͏͔ʯ໰୊ • ͜ͷล͸ɺϓϩμΫτӡ༻ͯ͠ΈͯݟۃΊ͍ͨͱ͜Ζ 2016-08-03 Speee Coffee Meetup #01 24

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Ͱ΋ɺ೉͍͠ཧ༝୳ͯͯ͠͠΋࢓ํͳ͍ͷͰɾɾɾ 2016-08-03 Speee Coffee Meetup #01 25

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ͱΓ͋͑ͣ࡞ͬͯΈΔ͜ͱʹ͠·ͨ͠ʢࡢ೔ʣ 2016-08-03 Speee Coffee Meetup #01 26

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2016-08-03 Speee Coffee Meetup #01 27

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es_rails_utils • ͍͔ͭ͘ͷgemͷ૊Έ߹Θͤʹ͢Δ༧ఆ • initializer • migration-dslʢԾʣ • testʢԾʣ • migrationʢԾʣ 2016-08-03 Speee Coffee Meetup #01 28

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initializer த਎͸γϯϓϧ module EsRailsInitializer class Railtie < ::Rails::Railtie initializer 'es_rails_initializer.load_config' do |app| yaml = app.root.join('config', 'elasticsearch.yml') config = YAML.load(ERB.new(yaml.read).result) ... 2016-08-03 Speee Coffee Meetup #01 29

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initializer த਎͸γϯϓϧ if defined?(Elasticsearch::Model) && Elasticsearch::Model.respond_to?(:client=) Elasticsearch::Model.client = EsRailsInitializer.client end if defined?(Elasticsearch::Persistence) && Elasticsearch::Persistence.respond_to?(:client=) Elasticsearch::Persistence.client = EsRailsInitializer.client end 2016-08-03 Speee Coffee Meetup #01 30

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ࡢ೔࡞Γ࢝Ίͯɺݱঢ় Gemﬁle git 'https://github.com/speee-dev/es_rails_utils.git' do gem 'es_rails_initializer' end conﬁg/elasticsearch.yml development: host: localhost ... 2016-08-03 Speee Coffee Meetup #01 31

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·ͱΊ • Elasticsearch͸ɺؾܰʹϓϩμΫγϣϯಋೖͰ͖Δ͙Β͍ ʹɺ͍͍ײ͡ʹރΕ͖ͯͨ • Ruby͔ΒElasticsearchʹΞΫηε͢ΔGem΋ἧͬͯΔ • ͋ͱ͸ɺRailsͷॳ଎ʹ͍͍͚ͭͯΔΑ͏ͳɺ։ൃϑϩʔΛ੔ ͑Δ͚ͩͩʂ • ࡞Ζ͏ʂʂʂ 2016-08-03 Speee Coffee Meetup #01 32