kosen12sLT_4.pdf - Speaker Deck

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ϞϊϦεΛখ͘͢͞ΔͭΒΈ kosen12s LT#4 Shintani Teppei (@euglena1215)

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఻͍͑ͨ͜ͱ ϞϊϦγοΫαʔϏε͔ΒͷϚΠΫϩαʔϏεԽ͸ ࢮ͵΄Ͳߟ͑Δ͜ͱ͋Δ͔ΒؾΛ͚ͭΑ͏ͳ Ͱ΋͏·͘ར༻͢Ε͹ αʔϏεͷण໋ΛԆ͹͢͜ͱ͕Ͱ͖Δ(͔΋)

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ͭΒΈΛ࿩͢લʹ •ɹͦ΋ͦ΋ͳͥਓྨ͸ϚΠΫϩαʔϏεԽΛ͕ͨ͠Δͷ͔ʁ •ɹͦ΋ͦ΋ϚΠΫϩαʔϏεͱ͸ʁ

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What is microservices? • ༧ݴऀ Martin Fowler͕ఏএ • ϚΠΫϩαʔϏεΞʔΩςΫνϟελΠϧ͸୯ҰͷΞϓϦέʔγϣϯΛখ ͞ͳαʔϏε܈ͷ૊Έ߹Θͤͱͯ͠ߏங͢Δख๏ ref: https://martinfowler.com/articles/microservices.html

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ref: https://martinfowler.com/articles/microservices.html

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ϚΠΫϩαʔϏεԽͷϝϦοτ • ։ൃ࣌ʹߟ͑ͳ͍ͱ͍͚ͳ͍είʔϓ͕ڱ͘ͳΔ • “ਖ਼͘͠αʔϏεͷ੾Γ෼͚͕Ͱ͖Ε͹” ࣗ਎ͷαʔϏεͷ͜ͱ͚ͩΛߟ͑Ε͹Α͘ͳΔ • ো֐ͷ఻ൖͷ࠷খԽ • αʔϏε͝ͱʹαʔόʔΛىಈͤ͞ΔͷͰෆྀͷࣄނʹΑΓαʔόʔ͕ͪΐͬ͜ͱαʔόʔ͕མͪͨͱ ͯ͠΋”ਖ਼࣮͘͠૷͍ͯ͠Ε͹”αʔϏεશମͷμ΢ϯ͕໔ΕΔ • αʔόʔεϖοΫͷ࠷దԽ • αʔϏε͝ͱʹཁٻ͞ΕΔύϑΥʔϚϯε͕ҧͬͨΓ͢ΔͷͰ”ͪΌΜͱΠϯϑϥΛ؅ཧͰ͖ͯΕ͹”  ʮ͜ͷαʔϏε͸ϝϞϦϚγϚγͰʯ͕؆୯ʹͰ͖Δ • CIͷߴ଎Խ • ଞαʔϏεͷॲཧ͸mockͯ͠ςετΛॻ͘ͷͰঢ়ଶͷֻ͚ࢉ͕ݮͬͯςετ͕؆ܿʹͳΔ • ਖ਼͘͠mock͢Δͷ͸ΊͪΌେม • Ϟμϯͳ։ൃΛͯͦ͠͏ͳงғؾ͕ग़Δ • ຊ౰͸͔ͳΓటष͍

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લఏ ྫͱͯ͠ԫ྘৭ΞΠίϯͷϓϩάϥϚͷͨΊͷ ٕज़৘ใڞ༗αʔϏεΛϚΠΫϩαʔϏεԽΛ૝ఆ ※ தΛݟͨ͜ͱͳ͍ͷͰ׬શʹໝ૝Ͱ͢ • ϚΠΫϩαʔϏε࠷ߴʂͬͯ࿩ΛΑ͘ฉ͘ͷͰ΍ͬͯΈΔ͜ͱʹͨ͠ • ͱ͸͍͑ػೳ։ൃΛࢭΊΔΘ͚ʹ͸͍͔ͳ͍ͷͰ2νʔϜʹ෼͚ͯ  ฒߦͯ͠ਐΊ͍ͯ͘ ঢ়گ

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Ϣʔβʔ هࣄ Organization λά ετοΫ γεςϜ֓ཁਤɹʙݱࡏʙ

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Ϣʔβʔ هࣄ Organization λά ετοΫ γεςϜ֓ཁਤɹʙ֬ఆ͍ͯ͠Δະདྷʙ Job ػೳ։ൃνʔϜʹΑΔʮJobػೳʯͷ௥Ճ

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Ϣʔβʔ هࣄ Organization λά ετοΫ γεςϜ֓ཁਤɹʙ֬ఆ͍ͯ͠Δະདྷʙ Job ϚΠΫϩαʔϏεԽ͠Α͏ʂʂʂ

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Α͏ͦ͜஍ࠈ΁

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஍ࠈͷ͓඼ॻ͖ ᶃ ؅ཧ͢Δαʔό૿͑Δ஍ࠈ ᶄ ϩάऩूͲ͏͢ΔΜͩ஍ࠈ ᶅ ࠷దͳݴޠͰ࣮૷ͨ͘͠ͳͬͯ͘Δ஍ࠈ ᶆ JOIN, τϥϯβΫγϣϯ, ֎෦ࢀর੍໿࢖͑ͳ͍஍ࠈ ᶇ ୤ϙϦϞʔϑΟοΫςʔϒϧ஍ࠈ ᶈ Ϩίʔυอଘ࣌ͷؔ࿈ςʔϒϧߋ৽callback֎͢஍ࠈ ᶉ Ҡߦظؒͷίʔυڞ༗Ͳ͏͢Δ͔஍ࠈ ᶊ ΫϥΠΞϯταΠυ͸Կͱ௨৴͢Ε͹͑͑Μ΍஍ࠈ ᶋ ͦ΋ͦ΋υϝΠϯڥքมΘΔ஍ࠈ ᶌ ϚΠΫϩαʔϏε෼͚͗ͯ͢͠·ͬͨ஍ࠈ   and many more…

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ᶃ ؅ཧ͢Δαʔό૿͑Δ஍ࠈ • ͍··Ͱ1ͭͰ׬͍݁ͤͯͨ͞αʔόΛෳ਺ʹ෼͚Δ • Ͳ͔͜ͰҰݩ؅ཧ͢Δඞཁੑ͕ग़ͯ͘Δ • ΠϯϑϥͳΜͰ΋஌ͬͯΔchigita͞Μ͕શͯख࡞ۀͰ؅ཧͯͨ͠Β • → chigita͞Μͷୀ৬ = αʔϏεऴྃͷ͓஌Βͤ

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ᶃ ؅ཧ͢Δαʔό૿͑Δ஍ࠈ ͦΜͳ͋ͳͨʹɿInfrastructure as Code(IaC) • ϓϩϏδϣχϯάɺ֤αʔόͷཁٻੑೳΛશͯίʔυͰ؅ཧ͢Δ • →ଐਓԽΛͳ͘͢ • ࠷ۙΑ͘ฉ͘ͷ͸TerraformΛ࢖ͬͯk8s(GKE/EKS)΍ECSΛ؅ཧ͢Δ • ͜ͷลͷಋೖ͸ҰேҰ༦Ͱ͸·ͣແཧ • αʔό؅ཧʹΦʔφʔγοϓΛ࣋ͭΠϯϑϥΤϯδχΞ͸ඞਢ Terraform ɾɾɾ༗໊ͳΫϥ΢υαʔϏεΛڞ௨ͷॻ͖ํͰίʔυԽͰ͖Δπʔϧ k8s(kubernetes)ɾɾɾͨ͘͞Μͷdocker containerΛ͍͍ײ͡ʹ؅ཧ͢ΔϑϨʔϜϫʔΫ(OSS)  GKE/EKS͸k8sͷSaaS ECS ɾɾɾEKSͱҧ͍͕෼͔ΒΜɻ୭͔ڭ͑ͯ΄͍͠

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ᶄ ϩάऩूͲ͏͢ΔΜͩ஍ࠈ • هࣄϚΠΫϩαʔϏε͕όάͬͯΔ͜ͱ͜ͱ͕൑໌ • όάͷݪҼΛಥ͖ࢭΊ͍ͨ • ࠓ·Ͱ͸stacktraceΛݟΕ͹ϝιουͷݺͼग़͠ݩ͕෼͔ΔͷͰ͙͢ݪҼ Λಥ͖ࢭΊΔ͜ͱ͕Ͱ͖͍ͯͨ • αʔϏε͕෼͔ΕΔͱstacetraceʹදࣔ͞Εͳ͘ͳΔͷͰ  stacktraceʹରԠ͢Δ΋ͷΛ࠶࣮૷͢Δඞཁ͕͋Δ

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ᶄ ϩάऩूͲ͏͢ΔΜͩ஍ࠈ ͦΜͳ͋ͳͨʹɿؤு࣮ͬͯ૷ or ۚͷ஄ؙ • ؤு࣮ͬͯ૷ • ֤ϚΠΫϩαʔϏεؒͷϦΫΤετʹUUIDΛ෇༩ͯ͠௨৴Λߦ͏͜ͱʹΑΓ  ͋ͱͰ௨৴ܦ࿏Λௐ΂ΒΕΔΑ͏ʹ͢Δ • ۚͷ஄ؙ • ্هͷػೳΛఏڙͯ͘͠ΕͯΔSaaS(AWS X-Ray)Λ࢖͏

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ᶅ ࠷దͳݴޠͰ࣮૷ͨ͘͠ͳͬͯ͘Δ஍ࠈ ͦΜͳ͋ͳͨʹɿզຫ͢Δ ࠷దͳݴޠͰͷ࠶࣮૷͸ϚΠΫϩαʔϏεԽ͕ࡁΜͰ͔Β ϚΠΫϩαʔϏεԽͱ࠶࣮૷ͱಉ࣌ʹߦ͏ͱઈରʹऴΘΒͳ͍ ʮRuby஗͍͠ܕͳ͍͠GoͰॻ͖׵͑ͨ͘ͳ͍ʁʯ

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ᶆ JOIN, τϥϯβΫγϣϯ, ֎෦ࢀর੍໿࢖͑ͳ͍஍ࠈ • DBΛ෼͚Δͱ͍͏͜ͱ͸ࠓ·ͰͷਓྨͷӥஐΛࣺͯΔͱ͍͏͜ͱ • ҟͳΔDBಉ࢜ͷJOIN͸Ͱ͖ͳ͍͠ɺτϥϯβΫγϣϯ΋షΕͳ͍ɺ  ֎෦ࢀর੍໿΋࢖͑ͳ͍ • ͱ͸͍͑σʔλෆ੔߹Λى͜͢Θ͚ʹ΋͍͔ͳ͍ͷͰαʔϏεؒ௨৴ͷҝͷผͷ࢓૊Έ Λ༻ҙ͢Δඞཁ͕͋Δ • API callʁ HTTP஗Ԇ଴ͯͳ͘ͳ͍ʁ • ඇಉظॲཧʁ σʔλෆ੔߹ͷՄೳੑ͋ΔΑͶʁ • ͜͜͸ཁ݅ͱʹΒΊͬͯ͜͠ͲͪΒ͕ྑ͍ͷ͔൑அ͢Δඞཁ͕͋Δ • ஗Ԇ΋ͤ͞ΒΕͳ͍͠ෆ੔߹΋ࠔΔ௨৴͕͋Δ৔߹͸ಉҰαʔϏε಺ʹ  ஔ͍͓͔ͯ͘͠ͳ͍

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ᶆ JOIN, τϥϯβΫγϣϯ, ֎෦ࢀর੍໿࢖͑ͳ͍஍ࠈ ͦΜͳ͋ͳͨʹɿؤு࣮ͬͯ૷ • ͜͜͸ؤுΔ͔͠ͳ͍ • ࣗ෼ͷͱ͜Ζͷ৔߹ • API call → Ϩεϙϯε͸JSONܗࣜͰ͸ͳ͘protobufܗࣜͰ௨৴ • ඇಉظॲཧ → Cloud Pub/SubΛ࢖ͬͯpub/subͰ΍ΓऔΓ • payloadͷserialize͸API callͱಉ༷ͷprotobufܗࣜͰߦͳ͍ͬͯΔ pub/subɾɾɾ1ݸͷpublisherͱNݸͷsubscriber͕ඇಉظతʹ΍ΓͱΓΛ͢Δ࢓૊ΈɻCloud Pub/Sub͸ͦͷSaaS  protobufɾɾɾσʔλࣗମ͸όΠφϦͰૹ৴࣌/ड৴࣌ʹserialize/deserializeΛߦ͏ɻJSONͱͷҧ͍͸ܕ͕͍ͭͯΔ

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ᶇ ୤ϙϦϞʔϑΟοΫςʔϒϧ஍ࠈ • ϚΠΫϩαʔϏε੾Γग़͕࢝͠·ͬͯ਺೔ޙ… • ʮ͋Εɺλά͕هࣄ͚ͩ͡Όͳͯ͘Ϣʔβʔʹ΋ඥ͍ͮͯΔͧ…ʁʯ ࣌ؒͳ͚Ε͹skip

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Ϣʔβʔ هࣄ Organization λά ετοΫ γεςϜ֓ཁਤɹʙ֬ఆ͍ͯ͠Δະདྷʙ Job

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Ϣʔβʔ هࣄ Organization λά ετοΫ γεςϜ֓ཁਤɹʙ֬ఆ͍ͯ͠Δະདྷʙ Job

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ᶇ ୤ϙϦϞʔϑΟοΫςʔϒϧ஍ࠈ • Ϣʔβʔొ࿥͢Δͱ͖ʹهࣄαʔϏε΁ϦΫΤετ͠ͳ͍ͱ͍͚ͳ͍σΟετϐΞͷ஀ੜ • ʮهࣄλάʯςʔϒϧͱʮϢʔβʔλάʯςʔϒϧʹ෼͚ͯɺͦΕͧΕͷϚΠΫϩαʔϏ εʹ࣋ͨͤΔ • ݱ࣮ͷαʔϏεͰ͸๲େͳ਺ʹͳΔͷͰશ෦෼͚Δͷ͸ۤߦofۤߦ • ෼͚Δඞཁͷ͋Δσʔλͱ෼͚ͳͯ͘΋͍͍σʔλΛਫ਼ࠪ͠ͳ͕ΒਐΊ͍ͯ͘΂͖

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ᶈ Ϩίʔυอଘ࣌ͷؔ࿈ςʔϒϧߋ৽callback֎͢஍ࠈ • ͦΕͧΕͷϚΠΫϩαʔϏε͸ࣗ਎͕ΦʔφʔγοϓΛ͍࣋ͬͯΔςʔϒϧ͚ͩૢ࡞ͯ͠΄ ͍͠ • ਌Ϩίʔυ͕࡟আ͞ΕͨΒࢠϨίʔυ΋Ұॹʹ࡟আ͢Δ or ֎෦Ωʔͷͱ͜ΛNULLʹ͢Δ • Φʔφʔγοϓ֎ͷϨίʔυΛมߋ͍ͨ͠৔߹΋ଟʑ͋Δ • ී௨Ͱ͋Ε͹O/R mapper΍webϑϨʔϜϫʔΫ͕͍͍ײ͡ʹ΍ͬͯ͘ΕΔػೳΛ  ࠶࣮૷͢Δඞཁ͕͋Δ ࣌ؒͳ͚Ε͹skip

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ᶉ Ҡߦظؒͷίʔυڞ༗Ͳ͏͢Δ͔஍ࠈ • ϚΠΫϩαʔϏεԽʹ͋ͨͬͯผϦϙδτϦʹίʔυΛҠ͍ͯ͘͠ඞཁ͕͋Δ • Ͱ΋ػೳ։ൃνʔϜ͸ΰϦΰϦػೳ࡞ͬͯΔͷͰҠͦ͏ʹ΋Ҡͤͳ͍

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ᶉ Ҡߦظؒͷίʔυڞ༗Ͳ͏͢Δ͔஍ࠈ • ϚΠΫϩαʔϏεԽʹ͋ͨͬͯผϦϙδτϦʹίʔυΛҠ͍ͯ͘͠ඞཁ͕͋Δ • Ͱ΋ػೳ։ൃνʔϜ͸ΰϦΰϦػೳ࡞ͬͯΔͷͰҠͦ͏ʹ΋Ҡͤͳ͍ ͦΜͳ͋ͳͨʹɿ͕Μ͹Δ 1. ϞϊϦγοΫͳΞϓϦέʔγϣϯʹϚΠΫϩαʔϏεʹରԠ͢ΔॲཧΛߦ͏  ΫϥεΛ࡞࣮ͬͯ૷ΛҠ͍ͯ͘͠(·ͩಉ͡ϦϙδτϦ) 2. ϚΠΫϩαʔϏεʹରԠ͢ΔॲཧΛॻ͍ͨΫϥεΛڞ௨ϥΠϒϥϦԽ • ػೳ։ൃνʔϜ΋ͦͷϥΠϒϥϦʹมߋΛՃ͑ͯ΋Β͏Α͏ʹ͢Δ 3. ৽͘͠ϦϙδτϦΛ࡞Γڞ௨ϥΠϒϥϦΛ࢖ͬͯϚΠΫϩαʔϏεΛ࡞͍ͬͯ͘ 4. ϞϊϦε͔Βஈ֊తʹڞ௨ϥΠϒϥϦΛൈ͍͍͖ͯ࠷ऴతʹ͸ϥΠϒϥϦফ໓

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ᶊ ΫϥΠΞϯταΠυ͸Կͱ௨৴͢Ε͹͑͑Μ΍஍ࠈ • ϚΠΫϩαʔϏεԽͯ͠όοΫΤϯυ͸੔಴͞Εͯ៉ྷʹͳͬͨ • ΫϥΠΞϯτ͸ΞϓϦΛಈ͔ͨ͢Ίʹͨ͘͞Μͷαʔόͱ௨৴Λ͠ͳ͍ͱ  ͍͚ͳ͘ͳͬͨ • ΞϓϦΤϯδχΞɺౖΓڰ͏

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ᶊ ΫϥΠΞϯταΠυ͸Կͱ௨৴͢Ε͹͑͑Μ΍஍ࠈ ͦΜͳ͋ͳͨʹɿBackend For Frontend(BFF) • ΫϥΠΞϯτͱόοΫΤϯυͷதؒ؅ཧ৬తͳଘࡏ(proxy server) • ΫϥΠΞϯτ͔Βཉ͍͠৘ใͷϦΫΤετ͕ಧ͘ͱόοΫΤϯυ(ϚΠΫϩ αʔϏε)ʹ໰͍߹ΘͤͯΑ͠ͳʹσʔλΛऔ͖ͬͯͯ͘ΕΔ • ΫϥΠΞϯτ͸BFFͱ௨৴͢Δ͚ͩͰΑ͘ͳΔ • ΫϥΠΞϯτͱBFF͸GraphQLͰ΍ΓऔΓ͢Δ͜ͱ͕ଟ͍ؾ͕͢Δʁ GraphQLɾɾɾ୯ҰͷΤϯυϙΠϯτʹରͯ͠POSTΛߦ͍ɺbodyʹΫΤϦΛ෇༩͢Δ͜ͱʹΑΓཉ͍͠σʔλΛ  ɹɹɹɹɹɹɹऔಘͰ͖ΔΑ͏ʹ͢Δ࢓૊ΈɻJSONͱҧͬͯܕ͕͍ͭͯΔͷ͕خ͍͠ɻ

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ᶋ ͦ΋ͦ΋υϝΠϯڥքมΘΔ஍ࠈ • ϚΠΫϩαʔϏε੾Γग़࢝͠·ͬͯ਺िؒޙ • ʮJobͷࢪࡦͱͯ͠هࣄʹJobΛඥ͚͍ͮͨͰ͢ʯ

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Ϣʔβʔ هࣄ Organization λά ετοΫ γεςϜ֓ཁਤɹʙ֬ఆ͍ͯ͠Δະདྷʙ Job

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Ϣʔβʔ هࣄ Organization λά ετοΫ γεςϜ֓ཁਤɹʙ֬ఆ͍ͯ͠Δະདྷʙ Job

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ᶋ ͦ΋ͦ΋υϝΠϯڥքมΘΔ஍ࠈ • ϚΠΫϩαʔϏε੾Γग़࢝͠·ͬͯ਺िؒޙ • ʮJobͷࢪࡦͱͯ͠هࣄʹJobΛඥ͚͍ͮͨͰ͢ʯ • ຊ౰͸Job୯ମͰϚΠΫϩαʔϏεͱͯ͠੾Γ෼͚Δ΂͖ͩͬͨ • ϚΠΫϩαʔϏε੾Γग़͠ͷஈ֊Ͱ͸૝ఆͰ͖ͳ͍͜ͱ

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ᶋ ͦ΋ͦ΋υϝΠϯڥքมΘΔ஍ࠈ • ϚΠΫϩαʔϏε੾Γग़࢝͠·ͬͯ਺िؒޙ • ʮJobͷࢪࡦͱͯ͠هࣄʹJobΛඥ͚͍ͮͨͰ͢ʯ • ຊ౰͸Job୯ମͰϚΠΫϩαʔϏεͱͯ͠੾Γ෼͚Δ΂͖ͩͬͨ • ϚΠΫϩαʔϏε੾Γग़͠ͷஈ֊Ͱ͸૝ఆͰ͖ͳ͍͜ͱ ͦΜͳ͋ͳͨʹɿ1ճϞϊϦεʹ͚ͬͭ͘௚ͯ͠࠶౓੾Γग़͠ Railsͷ࡞ऀ DHH͕ӡӦͯ͠ΔαʔϏε basecamp͸3ճॻ͖௚ͯ͠ΔΒ͍͠

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ᶌ ϚΠΫϩαʔϏε෼͚͗ͯ͢͠·ͬͨ஍ࠈ • ϚΠΫϩαʔϏεʹ෼͚·ͬͨ݁͘Ռɺੜ࢈ੑ͕͔ͳΓ্͕ͬͨ • ΤϯδχΞ2ਓͰ1ͭͷϚΠΫϩαʔϏεΛݟΔ·Ͱʹ • ηΩϡϦςΟύονΛ౰ͯ๨ΕΔαʔϏε͕ग़ͯ͘Δ • ਓ͕গͳ͍෼ɺαʔϏεؒͰίʔυʹ͕ࠩग़ͯ͠·͏ • ಛఆͷσβΠϯύλʔϯଟ༻͢ΔϚϯͱ͔ ref: https://speakerdeck.com/ota42y/how-should-we-face-with-microservices-wo- hamaikurosabisutodouxiang-kihe-ubekika

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ᶌ ϚΠΫϩαʔϏε෼͚͗ͯ͢͠·ͬͨ஍ࠈ ͦΜͳ͋ͳͨʹɿਓΛ૿΍͢ • ஌Γ߹͍Λwanted͠·͠ΐ͏ ͓͢͢ΊͷαʔϏε͸ͪ͜Βɿhttps://www.wantedly.com/

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·ͱΊ ϞϊϦγοΫαʔϏε͔ΒͷϚΠΫϩαʔϏεԽ͸ ࢮ͵΄Ͳߟ͑Δ͜ͱ͋Δ͔ΒؾΛ͚ͭΑ͏ͳ Ͱ΋͏·͘ར༻͢Ε͹ ʮαʔϏε͕ෳࡶ͗ͯ͢։ൃͭΒ͍ʯ͔Β ʮαʔϏεΛ։ൃ͢Δਓ਺଍Γͳͯͭ͘Β͍ʯʹ εέʔϧՄೳͳ(ۚͰղܾͰ͖Δ)໰୊΁ͱϘτϧωοΫΛҠͤΔ

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·ͱΊ ϞϊϦγοΫαʔϏε͔ΒͷϚΠΫϩαʔϏεԽ͸ ࢮ͵΄Ͳߟ͑Δ͜ͱ͋Δ͔ΒؾΛ͚ͭΑ͏ͳ ਺೥ޙͷࣗ෼ͷੜ࢈ੑΛ֬อ͢ΔͨΊʹ֤Ґ͕Μ͹͍͖ͬͯ·͠ΐ͏ Ͱ΋͏·͘ར༻͢Ε͹ ʮαʔϏε͕ෳࡶ͗ͯ͢։ൃͭΒ͍ʯ͔Β ʮαʔϏεΛ։ൃ͢Δਓ਺଍Γͳͯͭ͘Β͍ʯʹ εέʔϧՄೳͳ(ۚͰղܾͰ͖Δ)໰୊΁ͱϘτϧωοΫΛҠͤΔ