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181117_wannatech.pdf
Retu Fukui
November 17, 2018
Technology
1
360
181117_wannatech.pdf
2018/11/17(土) We wanna Tech@青森でお話ししてきました
Retu Fukui
November 17, 2018
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Transcript
We wanna Tech@੨ Ҫ (@fukuiretu) Troubleshoot Nuxt on Lambda
Ҫ (@fukuiretu) • piece of cake, inc. • since
2015.3~ • Web Engineer ◦ Rails occasionally AWS ◦ Recently Frontend ◦ Nuxt.js ◦ Serverless Framework • Live in Aomori ◦ RemoteWorker
WIP noteͷϑϩϯτΤϯυΛNuxt.js৽͠·͢ https://note.mu/konpyu/n/n9b7bf4343514
VueFesJapan2018 (2018.11.3) noteΛNuxt.jsͰ࠶ߏஙͨ͠ͱ͍͏λΠτϧͰ͓͖ͯ͠·ͨ͠ https://note.mu/r82/n/ne217ba36d233
ΞϑλʔύʔςΟͰଟ͔࣭ͬͨ Nuxt.jsΛAWS LambdaͰಈ͔͢·Ͱʹ ϋϚΓͲ͜Ζͱ͔ͳ͔ͬͨͰ͔͢??
͋Γ·ͨ͠ ઌਓͷܙ(@mya_ake san)͕͋ͬͨͷͰ ଟ͘ͳ͍͚Ͳ
ࠓ͓͢Δ͜ͱ noteʹ͓͚Δ Nuxt.jsΛAWS LambdaͰಈ͔͢·Ͱʹ ൃੜͨ͠ͱͦͷରॲʹ͍ͭͯ ͓͠·͢
αʔόߏ https://note.mu/recommend https://note.mu/recommend_nuxt ͍ΘΏΔαʔόϨεΞʔΩςΫνϟ
ຊʹೖΔલʹ ओͳొਓΛͬ͘͟Γհ
ओͳొਓ • Nuxt.js • AWS API Gateway • AWS Lambda
• Serverless Framework
Nuxt.js ϢχόʔαϧͳVue.jsΞϓϦέʔγϣϯΛ ߏங͢ΔͨΊͷϑϨʔϜϫʔΫ • Server Side Rendering (SSR)ͷαϙʔτ • ϧʔςΟϯάͷࣗಈੜ
• ϝλσʔλͷੜ • ঢ়ଶཧ • webpackʹΑΔϏϧυΛαϙʔτ
AWS API Gateway • WebAPIΤϯυϙΠϯτͷ࡞ɾཧ͕Ͱ͖Δ • όοΫΤϯυʹAWS LambdaΛར༻Ͱ͖Δ • ैྔ՝ۚ
AWS Lambda • αʔόͷϓϩϏδϣχϯάͳ͠ͰίʔυΛ࣮ߦ • Function as a Service •
ରԠݴޠ: Node.js, Python, Go, Java, C# • ಛఆͷΠϕϯτΛτϦΨʔͱ࣮ͯ͠ߦՄೳ • ϦΫΤετʹԠͯ͡ΦʔτεέʔϦϯά • ैྔ՝ۚ
Serverless Framework • ߏཧσϓϩΠΛ୲͏ • ΤίγεςϜ(plugin)͕๛ • AWSͷଞɺAzure Functions, Google
Cloud FunctionʹରԠ͍ͯ͠Δ
Nuxt on Lambdaͷͬ͘͟ΓΈ AWS Lambda্ͰexpressΛಈ͔͠ɺ Nuxt.jsΛexpressͷmiddlewareͱͯ͠ ಈ͔͢͜ͱͰ࣮ݱ
ൃੜͨ͠ͱͦͷରॲ
ൃੜͨ͠ 1. cold start 2. request headerͷαΠζաଟ 3. ϦΫΤετ࣌ͷϗετ͕औಘͰ͖ͳ͍
ൃੜͨ͠ 1. cold start 2. request headerͷαΠζաଟ 3. ϦΫΤετ࣌ͷϗετ͕औಘͰ͖ͳ͍
cold startͱ શ෦ڭ͑·͢ʂαʔόϨεΞϓϦͷΞϯνύλʔϯͱνϡʔχϯά https://d0.awsstatic.com/events/jp/2017/summit/devday/D4T7-2.pdf
cold startͷൃੜ݅ શ෦ڭ͑·͢ʂαʔόϨεΞϓϦͷΞϯνύλʔϯͱνϡʔχϯά https://d0.awsstatic.com/events/jp/2017/summit/devday/D4T7-2.pdf
cold startରࡦ Tune Up AWS Lambda https://www.slideshare.net/keisuke69/tune-up-aws-lambda
ॳͷఆ ศརpluginͰ͕ͯ͢ղܾ͢Δ༧ఆͩͬͨ…
ͱ͜Ζ͕… ಉVPCʹઃஔ
ͱ͜Ζ͕… VPCͰLambdaΛ༻͍ͯ͠Δ߹ɺ ཁNAT Gateway
ͱ͜Ζ͕… 1ϲ݄(30)Ͱ¥5,000
ࣗલͰ༻ҙ͢Δ͜ͱʹ
ࣗલͰ༻ҙᶃ 5ஔ͖ʹwarmup༻ͷendpointΛୟ͘Lambdaؔ
ࣗલͰ༻ҙᶄ deploy༻script(Shell)Ͱdeployޙʹ warmup༻ͷendpointΛcurlͰୟ͘Α͏ʹͨ͠
ࣗલͰ༻ҙᶅ • Nuxt.jsͷmiddlewareͱͯ͠ಈ࡞ • status: 200, ContentType: text/plain ͰOKΛฦ͚ͩ͢ •
ݩʑELBͷϔϧενΣοΫ༻్Ͱར༻͍ͯͨ͠ • warmup༻ͷendpointͱͯ͠ར༻ • (खલຯḩͰ͍͢·ͤΜ)
serverless-warmup-plugin ͱಉͷͷΛࣗ࡞͠ cold startରࡦ͕Ͱ͖ͨ (݄¥5,000͔͚ͣʹࡁΜͩ)
ൃੜͨ͠ 1. cold start 2. request headerͷαΠζաଟ 3. ϦΫΤετ࣌ͷϗετ͕औಘͰ͖ͳ͍
αʔόߏ https://note.mu/recommend https://note.mu/recommend_nuxt αʔόؒ௨৴
Nuxt.js ~ Rails·Ͱͷ௨৴ͷྲྀΕ Lambda(Nuxt.js)͔ΒHTTP Request(axios)Λ͛Δ EC2(Rails)ʹͯNginxͰHTTP RequestΛड͚Δ Nginx͔ΒRailsϦόʔεϓϩΩγ͢Δ
NginxͰ 400 Request Header Or Cookie Too Large ൃੜ
ͳ͔ͥ •X-Apigateway-Event •X-Apigateway-Context 10KB • API Gateway͕Lambdaݺͼग़࣌͠ʹHeaderʹ༩͢Δ • ϦΫΤετύϥϝʔλCookieͷใ͕٧·ͬͯΔ
Ͳ͏͢ΕΑ͍͔ A. Nginxͷlarge_client_header_buffersΛ૿͢ B. Nuxt.js(Lambda) ~ Rails(EC2)ͰෆཁͳͷͰ HTTP RequestΛ͛Δલʹheader͔Βআ͢Δ BΛબ
Nuxt.js(Lambda) ~ Rails(EC2) ͷHTTP௨৴͕Ͱ͖ͨ
ൃੜͨ͠ 1. cold start 2. request headerͷαΠζաଟ 3. ϦΫΤετ࣌ͷϗετ͕औಘͰ͖ͳ͍
Ϟνϕʔγϣϯ Nuxt.jsͷSSR࣌ʹ(Lambda্͔Β) Request HeaderͷHostΛ ϦΫΤετ࣌ͷϗετͱͯ͠ॲཧ͍ͯ͠Δ ϩδοΫ͕͋Δ
ଞʹํ๏͋ΔͷͰʁ A. ڥมʹڥ͝ͱͷϗετΛఆ͓ٛͯ͘͠ B. ڥ͝ͱͷconfigΛ༻ҙͯ͠ಈతʹಡΉ͜Ή
ଞʹํ๏͋ΔͷͰʁ A. ڥมʹڥ͝ͱͷϗετΛఆ͓ٛͯ͘͠ B. ڥ͝ͱͷconfigΛ༻ҙͯ͠ಈతʹಡΉ͜Ή noteಠࣗυϝΠϯ͕ར༻Ͱ͖ΔͷͰ ݻఆʹͳΒͳ͍ e.g. www.pieceofcake.co.jp diehardtales.com
mm.hyuki.net
API GatewayҎ֎ͷ߹ Host: note.mu Host: note.mu Host: note.mu ϦΫΤετ࣌ͷϗετ (note.mu)͕औಘͰ͖Δ
API GatewayҎ֎ͷ߹ CloudFrontͷBehaviorsͷઃఆΑΓɺ Cache Based on Selected Request Headers Λ
ALL ·ͨ Whitelist Ͱ Host
ಉ͡Α͏ʹAPI GatewayͰ ࢼͯ͠ΈΔͱ…
API Gatewayʹ proxy͞Εͳ͍
Amazon CloudFrontͰAPI Gatewayͷᙱ͍ͱ͜ΖʹखΛಧ͚Δ https://dev.classmethod.jp/cloud/cache-api-gateway-by-cloudfront ҆ఆͷΫϥϝι͞Μ
Ͳ͏ͨ͠Β ϦΫΤετ࣌ͷϗετ͕ औಘͰ͖ΔΜͩΖ͏͔
AWSެࣜϑΥʔϥϜʹٹ͍ͷҰख Lambda@Edge!!!!! https://forums.aws.amazon.com/message.jspa?messageID=682411
Lambda@Edge • CloudFront্ͰҎԼͷ͍ͣΕ͔ͷΠϕϯτΛϑο Ϋͯ͠LambdaΛ࣮ߦ͢ΔαʔϏε • Ϗϡʔϫʔ͔ΒϦΫΤετΛड৴ͨ͠ޙ • ϦΫΤετΛΦϦδϯʹసૹ͢Δલ • ΦϦδϯ͔ΒϨεϙϯεΛड৴ͨ͠ޙ
• ϏϡʔϫʔʹϨεϙϯεΛసૹ͢Δલ • 2017/7ʹҰൠఏڙ։࢝
API Gatewayͷ߹ͷྫ Host: note.mu Host: xxx.cloudfront.net X-Forwarded-Host: note.mu ϦΫΤετ࣌ͷϗετ (note.mu)͕औಘͰ͖Δ
HostΛX-Forwarded-Hostʹ٧ΊΔ Host: xxx.cloudfront.net X-Forwarded-Host: note.mu ϏϡʔϫʔϦΫΤετΛϑοΫ
API Gatewayͷ߹ͷྫ express Nuxt.js
CloudFront ~ API Gateway ~ Lambda ͷߏͰϦΫΤετ࣌ͷ Host͕औಘͰ͖ͨ
Lambda@Edge ར༻࣌ͷҙ • όʔδϣϯ͖ͭͷLambdaؔͷARNΛઃఆ͢Δඞཁ͕͋Δ • όʔδχΞ(us-east-1)Ϧʔδϣϯʹஔ͢Δඞཁ͕͋Δ • ֤ϦʔδϣϯʹϨϓϦΧ͕࡞ΒΕ࣮ͯߦ͞ΕΔ • ಈ࡞ͤͨ͞ΤοδϩέʔγϣϯʹΑͬͯϩάग़ྗ͞ΕΔϦʔδϣ
ϯ͕ܾ·Δ • ڥมར༻ෆՄ • ௨ৗͷLambdaಉ༷ʹεϩοτϦϯά͕ൃੜ͢ΔͨΊΞΫη εΛߟྀΛ͢Δඞཁ͕͋Δ
·ͱΊ
·ͱΊ • ैདྷͷΞʔΩςΫνϟͱύϥμΠϜ͕ҟͳΔͷͰ વͳ͕Βॳݟͷଟ͍͠ɺ͓ͦΒ͘͜ͷઌ … • ӡ༻͕ܰݮ͞ΕΔͷେ͖͍ • ϓϩηεཧ •
Φʔτεέʔϧ • ॳݟͷͱ͖߹͏ڧ͍ؾ͕࣋ͪ͋ΔͳΒ αʔόϨεΞʔΩςΫνϟ͍͍ͧ
Special Thanks Naoto Ishizawa (@youyo_)
͋Γ͕ͱ͏͍͟͝·ͨ͠ ΤϯδχΞืूͯ͠·͢ ٸதͷʮnoteʯͷϑϩϯτΤϯυΛ৽͢ΔΤϯδχΞΛืूʂ https://www.wantedly.com/projects/208206