今こそはじめよう! 実践!サーバレスアーキテクチャ/serverless-sendai

by 堀家隆宏

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ࠓͦ͜͸͡ΊΑ͏ʂ ࣮ફʂαʔόϨεΞʔΩςΫνϟ @Amimoto_Ami amimoto-ami.com

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ࣗݾ঺հ • ໊લɿງՈོ޺ • ॴଐɿAMIMOTO TEAM • Githubɿhttps://github.com/horike37 • Qiitaɿhttp://qiita.com/horike37 • ಘҙͳ͜ͱɿAWS, JavaScript, WordPress

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࠷ۙ։ൃͨ͠ αʔόϨεͳ OSSϓϩμΫτ

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https://github.com/horike37/simple-api-gateway Simple API Gateway • API GatewayͷઃఆΛ؆୯ʹ͢Δͱ͍ ͏ίϯηϓτ • ର࿩ίϚϯυʹΑΔઃఆͷखҾ • ϚοϐϯάςϯϓϨʔτ΍CORSͷઃ ఆΛҙࣝ͠ͳͯ͘ྑ͍

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https://github.com/horike37/serverless-command-line-event-args • Serverless FrameworkͷϓϥάΠϯ • Serverless FrameworkʹΑΔ։ൃͷޮ ཰Խ͕Մೳʹ • Lambdaʹ౉͢Ҿ਺ΛίϚϯυϥΠϯ Ͱ౉͢͜ͱ͕͖ͰΔ Serverless CommandLine Event Args

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ຊ୊

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αʔόϨε ΞʔΩςΫνϟ ͱ͸

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• Ϋϥ΢υͰఏڙ͞ΕΔαʔϏεར༻Λલఏʹߏங͢ΔαʔϏεٴͼΞϓϦέʔγϣϯ • Ծ૝ϚγϯΛ࢖ΘͣʹΞʔΩςΫνϟΛߏ੒ EC2

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Կ͕خ͍͠ͷ͔

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ຊདྷ΍Γ͔ͨͬͨίʔυΛॻ͘͜ͱʹ ूதग़དྷΔ؀ڥΛ࡞Δ

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• webαʔϏεΛ։ൃӡ༻ͯ͠ϏδωεΛ੒ޭͤ͞Δ͜ͱ • ͦͷͨΊʹΞϓϦέʔγϣϯͷίʔυΛॻ͘͜ͱ ຊདྷ΍Γ͔ͨͬͨ͜ͱ ͔͠͠ݱ࣮ʹ͸ίʔυΛॻ͚ͩ͘Ͱ͸ແ͍

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• OS΍ωοτϫʔΫͷઃఆɾ؅ཧ • αʔόͷߏஙɾϥϯλΠϜ؀ڥͷηοτΞοϓ • ϛυϧ΢ΣΞ΍ΞϓϦέʔγϣϯͷηΩϡϦςΟΞοϓσʔτ • Πϯϑϥͷϝϯςφϯε • ΞΫηε਺΍Ϣʔβ਺ͷ৳ͼʹର͢Δαʔόߏ੒ͷมߋɾΩϟύγςΟ ؅ཧ • ݸਓ৘ใͷ؅ཧ αʔό͕ଘࡏ͢Δ৔߹ʹൃੜ͢ΔλεΫ

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αʔό͕ଘࡏ͢ΔwebαʔϏεͷ্ཱͪ͛౰ॳ ίʔυͷ࣮૷ αʔόϝϯςφϯε αʔόͷߏங ΩϟύγςΟϓϥϯχϯά අ΍ͤΔ࣌ؒͷׂ߹ • ଟ͘ͷ࣌ؒΛίʔυͷ࣮૷ʹඅ΍ͤΔ

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αʔό͕ଘࡏ͢ΔwebαʔϏε͕੒௕͢Δͱ αʔόͷ؂ࢹ αʔόϝϯςφϯε ίʔυͷ࣮૷ ΩϟύγςΟ ϓϥϯχϯά අ΍ͤΔ࣌ؒͷׂ߹ • ૿͑ߦ͘ΞΫηε΍Ϣʔβ਺ʹର͢Δ αʔόͷߏ੒มߋɾΩϟύγςΟϓϥ ϯχϯά • ϞϊϦγοΫͳγεςϜʹର͢Δϝϯ ςφϯείετ • γϏΞͳݸਓ৘ใͷ؅ཧ • αʔόͷ؂ࢹ΍ͦΕʹର͢Δ24/365ͷ ରԠͷඞཁੑ ηΩϡϦςΟΞλοΫ ΁ͷରԠ

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͍ͭͷؒʹ͔ଟ͘ͷ࣌ؒΛ෇ՃՁ஋ͷੜ·ͳ͍ ॏ࿑ಇʹඅ΍͍ͯ͠Δ

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Ͳ͏ղܾ͢Δͷ͔

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αʔό͕ଘࡏ͢ΔwebαʔϏεͷ੒௕ظ αʔόͷ؂ࢹ αʔόϝϯςφϯε ίʔυͷ࣮૷ ΩϟύγςΟ ϓϥϯχϯά අ΍ͤΔ࣌ؒͷׂ߹ • ૿͑ߦ͘ΞΫηε΍Ϣʔβ਺ʹର͢Δ αʔόͷߏ੒มߋɾΩϟύγςΟϓϥ ϯχϯά • ϞϊϦγοΫͳγεςϜʹର͢Δϝϯ ςφϯείετ • γϏΞͳݸਓ৘ใͷ؅ཧ • αʔόͷ؂ࢹ΍ͦΕʹର͢Δ24/365ͷ ରԠ໺ඞཁੑ %%PT߈ܸͷରԠ ͢΂ͯΛΫϥ΢υαʔϏε΁ Ξ΢τιʔε

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݁Ռ΋ͨΒ͞ΕΔϝϦοτ Ϗδωε΁ͷ෇ՃՁ஋Λ͚ͭΔίʔυͷ࣮૷ʹ ଟ͘ͷ࣌ؒΛඅ΍ͤΔΑ͏ʹͳΔ

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࣮ફฤ

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Ұൠతͳϒϥ΢βΞϓϦέʔγϣϯΛαʔόϨεΞʔΩςΫνϟͰ ࣮૷ͨ͠৔߹ͷߏ੒Λݟ͍͖ͯ·͠ΐ͏

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ϒϥ΢βΞϓϦέʔγϣϯͷߏ੒ਤ

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ϒϥ΢βΞϓϦέʔγϣϯͷߏ੒ਤ CognitoʹΑΔ ೝূɾೝՄ

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ϒϥ΢βΞϓϦέʔγϣϯͷߏ੒ਤ ಈతॲཧ͸API Gateway Λ௨ͯ͠LambdaͰॲཧ

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ϒϥ΢βΞϓϦέʔγϣϯͷߏ੒ਤ HTML,CSSͳͲ ੩తϦιʔε͸S3ʹઃஔ

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Cognito   User Pools ೝূɾೝՄ

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Cognito User Pools • ಠࣗͷϢʔβσΟϨΫτϦΛ࡞੒Ͱ͖ΔϑϧϚωʔδυαʔ Ϗε • ਺ԯϢʔβ·Ͱεέʔϧ • ೝূɾೝՄγεςϜΛεέʔϧͤ͞ɺηΩϡΞʹ͢Δͱ͍͏ ॏ࿑ಇΛ͢΂ͯ΍ͬͯ͘ΕΔαʔϏε

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Cognito User Pools • جຊతʹ͸1ͭͷΞϓϦέʔγϣϯʹ͖ͭ1ͭͷUser Pool Λ࡞Δ • αΠϯΞοϓͷࡍͷύεϫʔυͷϙϦγʔ΍ೋஈ֊ೝূͳ ͲηΩϡϦςΟʹؔ͢ΔઃఆΛ֤User Poolຖʹઃఆ͢Δ • αΠϯΞοϓࡁΈͷϢʔβͷҰཡ͸Ϛωδϝϯτίϯιʔ ϧ͔Β֬ೝͰ͖Δ

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Amazon Cognito Identity SDK for JavaScript https://github.com/aws/amazon-cognito-identity-js • User PoolͱwebαΠτͱͷ࿈ܞΛߦ͏ϥΠϒϥϦ • αΠϯΠϯɺαΠϯΞοϓɺύεϫʔυϦϚΠϯμʔ ͳͲɺϢʔβ؅ཧΛߦ͏্Ͱඞཁͳϝιου͕શ ͯ༻ҙ͞Ε͍ͯΔ • JavaScriptͰϝιουΛهड़͢Δ͚ͩͰྑ͍ɻෳ ࡶͳϏδωεϩδοΫΛ࣮૷͢Δඞཁ͸ͳ͍

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Customer Authorizer API   Gateway Cognito User Pools • API GatewayʹೝূೝՄͷ࢓૊ΈΛUser PoolsΛ࢖࣮ͬͯݱͰ͖Δ • ϩάΠϯࡁΈͰ͋Ε͹APIͷॲཧΛಈ࡞͞ ͤͯɺະϩάΠϯঢ়ଶͰ͋Ε͹ɺAPIͷॲ ཧΛ࣮ࢪͤ͞ͳ͍ͱ͍ͬͨ͜ͱ͕Մೳ

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ຊ೔ϕʔλ͕औΕͯਖ਼ࣜϦϦʔε

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DynamoDB ಈతॲཧ Lambda API   Gateway

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API Gateway • ΞϓϦέʔγϣϯͷݰؔͱͯ͠ৼΔ෣͏ APIΛ࡞੒͢Δ͜ͱ ͕Ͱ͖ΔϚωʔδυαʔϏε • APIόοΫΤϯυγεςϜʹLambdaΛઃఆͯ͠֎෦͔Βͷೖ ྗσʔλΛॲཧͤ͞Δ • ͲͷΑ͏ͳεέʔϧͰ͋ͬͯ΋ɺ؆୯ʹ API ͷ࡞੒ɺ഑෍ɺ อकɺ؂ࢹɺอޢ͕ߦ͑Δ

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Lambda • ΞϓϦέʔγϣϯίʔυΛ࣮ߦͰ͖ΔίϯϐϡʔταʔϏε • Ϣʔβ͸ΞϓϦέʔγϣϯίʔυͷΈΛAWSʹΞοϓϩʔ υ͢Ε͹ྑ͍ɻϢʔβ͕੹೚Λෛ͏ͷ͸ίʔυͷΈ • αʔόɺOSɺΩϟύγςΟʔͷϓϩϏδϣχϯά͓Αͼࣗ ಈεέʔϦϯάɺίʔυͷϞχλϦϯά͓Αͼϩάه࿥͸ AWS͕؅ཧٴͼ࣮ࢪ͢Δ

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DynamoDB • ϑϧϚωʔδυͳNo SQLσʔλϕʔεαʔϏε • SPOF͕ଘࡏ͠ͳ͍ɻߴՄ༻ੑ 3 x ϨϓϦέʔγϣϯ • ετϨʔδ༰ྔ੍ݶͳ͠ • ਫฏεέʔϦϯάʹΑΔෛՙ෼ࢄ

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• ͜ͷ3ͭͷαʔϏεΛ૊Έ߹ΘͤΔ͜ͱͰɺΞϓϦέʔγϣ ϯʹඞཁͳσʔλͷೖग़ྗɺॲཧɺӬଓԽ͕ՄೳʹͳΔ αʔόϨεΞʔΩςΫνϟࡾछͷਆث

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αʔόϨεΞʔΩςΫνϟͰͷ։ൃΛΑΓޮ཰తʹ

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։ൃπʔϧ΍ϑϨʔϜϫʔΫ Serverless Framework API GatewayٴͼLambdaɺͦͷଞAWSϦιʔεΛ࢖ͬͨ ΞϓϦέʔγϣϯΛߏங͢ΔͨΊͷϑϨʔϜϫʔΫ APEX LambdaϑΝϯΫγϣϯΛϏϧυɺσϓϩΠɺ؅ཧ͢ΔͨΊ ͷπʔϧ chalice Serverless FrameworkʹࣅͨϑϨʔϜϫʔΫ Lamvery LambdaͷσϓϩΠ΍Functionͦͷ΋ͷΛؚΊͨपลػೳͷ ઃఆɾ؅ཧΛࢧԉ͢Δπʔϧ Simple API Gateway API GatewayͷઃఆٴͼσϓϩΠΛ؆୯ʹ͢Δπʔϧ

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੩తϦιʔε S3 Bucket

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Simple Strage Service • Πϯλʔωοτ༻ͷετϨʔδαʔϏε • εέʔϥϒϧͰ৴པੑ͕ߴ͘ɺ͔ͭߴ଎Ͱ҆Ձͳσʔλετ ϨʔδΠϯϑϥετϥΫνϟΛར༻Ͱ͖Δ  • ϑϩϯτ༻ͷHTML͸S3όέοτʹ഑ஔ͢Δ͜ͱͰແݶͷε έʔϥϏϦςΟΛ࣮ݱ͢Δ

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ϑϩϯτͷϒϥ΢βͱAPIΛޮ཰Α͘઀ଓͯ͘͠ΕΔ΋ͷ͕ඞཁ

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ϑϩϯτͷϒϥ΢βͱAPIΛޮ཰Α͘઀ଓͯ͘͠ΕΔ΋ͷ͕ඞཁ Single Page ApplicationʹΑΔ ϒϥ΢βΞϓϦέʔγϣϯͷ։ൃ

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• ୯ҰϖʔδʹΑΔWebΞϓϦέʔγϣϯ • ϖʔδ͸ϋογϡͷมߋ΍ DOM ͷૢ࡞ʹΑͬͯ੾ ΓସΘΔ • αʔόͱͷ௨৴͸ Ajax ΍ WebSocket ͳͲͰߦ͏ Single Page Applicationͱ͸

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• APIͱϖʔδ͕׬શʹ෼཭͍ͯ͠ΔͨΊɺAPI ϑΝʔετͷߟ͑ํͰࣗવʹΞϓϦέʔγϣϯ͕૊ ΊΔ • ΫϥΠΞϯτͱAPIͦΕͧΕʹ։ൃϦιʔεΛ෼཭ ׂͯ͠Γ౰ͯΔ͜ͱ͕༰қ Single Page ApplicationͷϝϦοτ

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ϓϦίϯύΠϧʹΑΔΫϥΠΞϯταΠυϨϯμϦϯά API Gateway͔Βͷσʔλऔಘ ίϯύΠϧͯ͠HTMLͷੜ੒ ϒϥ΢βͰͷඳը

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·ͱΊ • ͜͜·Ͱʹ঺հͨ͠αʔϏε΍πʔϧΛ࢖͏͜ͱͰैདྷͷϒ ϥ΢βΞϓϦέʔγϣϯΛαʔόϨεΞʔΩςΫνϟͰ։ൃɺ ӡ༻͢Δ͜ͱ͕ՄೳʹͳΔ

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·ͱΊ http://qiita.com/horike37 ࠓ೔঺հͨ͠ΞʔΩςΫνϟͷৄࡉ͸QiitaͷํʹιʔείʔυؚΊͯॻ͍͍ͯ·͢ ڵຯ͋Δํ͸ੋඇͷ͍ͧͯΈ͍ͯͩ͘͞

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αʔόϨεΞʔΩςΫνϟͰ࠷΋େࣄͳ͜ͱ ࠷ޙʹ

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αʔόϨεΞʔΩςΫνϟͰ΍͍ͬͯ͘ؾ࣋ͪʂ

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ࣗ෼ͨͪͰ։୓͠ɺࣄྫΛ࡞͍ͬͯ͘ؾ࣋ͪʂ

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ͦΜͳ೤͍ؾ࣋ͪΛ͞Βʹ੝Γ্͛ͯ͘ΕΔΠϕϯτ͕͋Γ·͢ʂ

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Serverless Conf Tokyo͕։࠵͞Ε·͢ʂ http://tokyo.serverlessconf.io/

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@Amimoto_Ami amimoto-ami.com THANK YOU! ࠓͦ͜͸͡ΊΑ͏ʂ ࣮ફʂαʔόϨεΞʔΩςΫνϟ