GunosyでのMicroservicesの現状とGoの使いどころ

by y_matsuwitter

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GunosyͰͷ Microservisesͷݱঢ়ͱ Goͷ࢖͍Ͳ͜Ζ @y_matsuwitter

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ࣗݾ঺հ • ։ൃຊ෦ࣥߦ໾һࡶ༻໾ • iOS, Android, Infrastructure, Web • Golang෍ڭ໾ • ਖ਼࠲ • ࠷ۙؾʹͳΔ΋ͷ: MQTT

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࠷ۙίʔυॻ͚ͯ·ͤΜ…

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ࠓ೔ͷ࿩ • GunosyͰӡ༻͍ͯ͠ΔMicroservicesͷ࿩ • ͦͷதͰGoΛͲ͏࢖͍ͬͯΔ͔

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Microservices = খ͞ͳαʔϏεͷ૊Έ߹Θͤ

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What is microservices? • <=> Monolithic • ద੾ͳن໛ͷϏδωευϝΠϯ͝ͱʹ಺෦αʔϏεΛ෼ׂ • ΞϓϦέʔγϣϯଆ͔Β֤छAPIΛݺͼग़͢ • αʔϏεʹ߹Θٕͤͨज़બఆΛ࣮ࢪ • SOAͷম͖௚͠

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Why microservices? • Ϗδωεʹ߹ΘͤͨνʔϜͷ෼ׂɾฤ੒ • খ͞ͳαʔϏεʹΑΔଐਓੑͷرബԽ • Ϗδωεཁٻʹର͢ΔॊೈͳରԠ • ͍Βͳ͍΋ͷΛࣺͯΒΕΔ ϞϊϦγοΫͳγεςϜͰ͸ɺϏδωε͕੒௕͢Δʹै͍վम ίετ͕૿Ճ͍ͯ͘͠

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ࣄྫ: Soundcloud • طଘͷϞϊϦγοΫ͕͋ͬͨ • ϦϑΝΫλϦϯάͷஈ֊ͰαʔϏεΛ෼ੳ • ϏδωευϝΠϯ͝ͱʹMicroserviceΛߏங • FinagleϕʔεͷRPCͰେྔͷJVM্ͷΞϓϦΛ݁߹ • ͦͷ্Ͱ༷ʑͳݴޠΛӡ༻ ࢀߟ: Building Products at SoundCloud

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MicroservicesͷதͰੜ ͖ΔGo

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ͳͥGoͳͷ͔ • ֎෦ґଘͷͳ͍όΠφϦ • ܰྔ͔ͭϋΠύϑΥʔϚϯε • ڞ௨ϥΠϒϥϦ੾Γग़ָ͕͠

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GunosyͰͷ࿩

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• άϊγʔͱ͍͏୯ҰͷχϡʔεΞϓϦ • ಺෦͸ϏδωευϝΠϯ͝ͱʹ෼ׂ • Platformߏ૝ʹΑΓ಺෦ͷϏδωευϝΠϯ͸ຖ݄̎ͭ΄Ͳ ૿͍͑ͯΔ

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ࣾ಺Microserviceͷߏ੒ཁૉ • API༻HTTPαʔό • όονॲཧܥαʔό • ؅ཧը໘ • Πϯϑϥߏ੒ɾ؅ཧπʔϧ

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APIαʔό • ༻ҙ͞ΕͨσʔλΛద੾ͳυϝΠϯϩδοΫʹͯฦ٫ • େ൒ͷAPI͕Golang੡

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APIαʔόɺ࢖͍ͬͯΔ΋ͷ • Kami ... WebFramework • mogi ... SQL stub Ϟσϧ૚ͳͲΛڞ༗ύοέʔδʹ੾Γग़͠ɺ࢖͍·Θ͢

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ύοέʔδߏ੒ • ϏδωευϝΠϯ͝ͱʹ1ϦϙδτϦ • ಺෦͸ߋʹࡉ͔͘෼͚ͨυϝΠϯ͝ͱʹύοέʔδΛ੾Δ example-service-1 ├── domain-1 ├── domain-2 ├── main.go └── routes.go common-package ├── domain-1 ├── domain-2 └── main.go

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όονॲཧ • ࣌ʹେྔͷσʔλΛɺAPIར༻΍KPIूܭͷͨΊʹར༻ • ෳ਺αʔόͰͷฒྻॲཧ͕ඞཁͳ৔໘΋ଟʑ

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όονॲཧ w/ Go • Go͸ฐࣾͷόονॲཧʹ͸ࠓͷͱ͜Ζ΄΅ར༻͞Εͣ • େ൒͸Python • ෳ਺αʔόʹ·͕ͨΔ΋ͷ͸Python + Celery • APIͱͷڞ௨ॲཧ͕͋Γɺ1ΠϯελϯεͰࡁΉॲཧͷΈGo • ʢCacheσʔλͷੜ੒ͳͲʣ

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؅ཧը໘ • σʔλεΩʔϚʹԠͯ͡ॊೈʹϑΥʔϜɾϦετΛੜ੒ɺॲ ཧ • ༷ʑͳόονॲཧΛΩοΫ͢Δ

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؅ཧը໘ w/ Golang • ݴޠͷੑ࣭Ώ͑ɺॊೈͳϑΥʔϜੜ੒ɾӡ༻ʹ޲͍ͨπʔϧ ͸গͳ͍ • ࣾ಺ͷ؅ཧܥ͸Django͔Rails͕ओ • APIܦ༝ͰGoAPIΛؒ઀తʹར༻͢Δ͜ͱ͕ଟ͍ • νϟοτͷॲཧͳͲ

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Πϯϑϥ؅ཧܥ • ֤छΞϓϦέʔγϣϯͷσϓϩΠ • ϞχλϦϯά

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Πϯϑϥ w/ Go • ؅ཧܥπʔϧͰGo੡ͷ΋ͷ͸ଟ͍ • GoΛॻ͘͜ͱ͸গͳ͍ • શମͷߏ੒؅ཧ͸OpsworksͰ࣮ࢪ

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σϓϩΠ w/ Go • go build͠ɺOpsworksʹΑΓඞཁͳϑΝΠϧ܈ΛS3ܦ༝Ͱ ͹Β·͘ • Capistranoͷ΍Γํʹ͍ۙσϓϩΠϑϩʔ /path/to/service ├── shared │ ├── logs │ ├── tmp │ └── config ├── 20150306085540 │ ├── bin │ ├── public │ └── etc... ├── 20150306090324 └── current -> /path/to/service/releases/20150306090324

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·ͱΊ • ϏδωευϝΠϯ͝ͱʹҰͭͷαʔϏε܈Λ࡞੒ • GoʹͯύϑΥʔϚϯεΛ֬อͭͭ͠υϝΠϯؒɾϨΠϠʔؒ Ͱ࿈ܞ • ݱঢ়Ͱ͸αʔϏεͷ௥Ճʹ΋༨༟͕ग़ͯ͘Δఔ౓ʹ

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Go + MicroservicesͰ αΫαΫαʔϏε֦େ

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Future works... • gRPCͷར༻ʹΑΔαʔόؒ݁߹ • ΠϕϯτۦಈܕMicroservices(Reactive Microservices) • ৽͍͠هࣄ͕௥Ճ͞Εͨ => ֤αʔϏε͝ͱʹউखʹඞཁ ͳॲཧ։࢝