Ubuntu VPS から CoreOS クラスタに移行した話 #w8lt

by Daisuke Fujita

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Ubuntu VPS ͔Β CoreOS Ϋϥελʹ  Ҡߦͨ͠࿩ 2015-04-22 W8LT#1 @dtan4 IUUQHMPCFWJFXTDPNEDJNESFBNTDMPVETDMPVETKQH

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#w8lt  ։࠵͓ΊͰͱ͏͍͟͝·͢  :tada:

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Daisuke Fujita @dtan4 ܭࢉ޻ֶઐ߈ ಙాݚ M2

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2014.07-2015.04 ͘͞Β VPS + Ubuntu 2015.04- DigitalOcean + CoreOS

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2014.07-2015.04 ͘͞Β VPS + Ubuntu 2015.04- DigitalOcean + CoreOS

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͘͞Β VPS + Ubuntu VPS 2G Ubuntu 14.04 ߏ੒؅ཧ: Chef ΞϓϦέʔγϣϯ: Docker ίϯςφ ֎෦ετϨʔδ: S3 DNS αʔϏε: Route53 ؂ࢹܥ: Datadog, Papertrail

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͘͞Β VPS + Ubuntu ap-northeast1 (Tokyo) VPS 2G nginx-proxy Web App Worker Web App redis postgres dd-agent

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৭ʑͭΒ͍ Chef ׂ͕Γͱ͠ΜͲ͍ʢႈ౳ੑͱ͸ʁʣ ౓ॏͳΔηΩϡϦςΟΞοϓσʔτ ssh ͯ͠ docker run ͢ΔίϯςφखಈσϓϩΠ postgres, redis ίϯςφͷσʔλӬଓԽͯ͠ͳ͍ Docker 1.1

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CoreOS ͢΂ͯͷΞϓϦέʔγϣϯΛ  Docker ίϯςφͱͯ͠ಈ͔͢ Core ೖΕସ͑ʹΑΔࣗಈΞοϓσʔτ (like Chrome) etcd + ﬂeet ʹΑΔΫϥελϦϯά CoreOS is designed for security, consistency, and reliability

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2014.07-2015.04 ͘͞Β VPS + Ubuntu 2015.04- DigitalOcean + CoreOS

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DigitalOcean + CoreOS 1GB Droplet * 1 + 512MB Droplet * 1 (to be 2) CoreOS stable ߏ੒؅ཧ: Terraform + cloud-conﬁg ΞϓϦέʔγϣϯ: Docker ίϯςφ ֎෦ετϨʔδ: S3 DNS αʔϏε: Route53 ؂ࢹܥ: Datadog, Papertrail

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DigitalOcean + CoreOS ap-northeast1 (Tokyo) sgp1 (Singapole) nginx-proxy Web App Worker redis postgres dd-agent Web App etcd web db

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DigitalOcean + CoreOS ʢཧ૝ʣ ap-northeast1 (Tokyo) sgp1 (Singapole) nginx-proxy Web App Worker redis postgres dd-agent load balancer Web App etcd lb web db

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CoreOS Droplets web (1GB)  Web ΞϓϦέʔγϣϯ, Worker db (512MB)  PostgreSQL, Redis σʔλετΞ  ϗετϚγϯʹσʔλӬଓԽ lb (512MB)  Route53 ͔ΒͷΞΫηεΛ web ʹதܧ͢Δ

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Infrastructure as Code ͢΂ͯͷΠϯϑϥΛίʔυͰ؅ཧ Git ʹΑΔόʔδϣϯ؅ཧɺPull Request ܕ։ൃ CI ΍ ChatBot ͱ࿈ܞͯ͠ਓͷखΛհ͞ͳ͍  Πϯϑϥͷߋ৽

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Cloud-Conﬁg YAML Ͱ CoreOS Λઃఆ Ϣʔβʔ؅ཧ  Ξοϓσʔτ੍ޚ  ىಈ͢ΔαʔϏεͷࢦఆ… αʔϏε؅ཧ͸ ﬂeet ʹ  Ҡߦ͢Δ͔΋

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terraform Hashicorp ϓϩμΫτ  ઈࢍ։ൃத AWS, DigitalOcean …Λ  ίʔυͰ؅ཧ͢Δ terraform apply Ͱ  ຊ൪ʹҰൃͰ൓ө

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AWS ౦ژϦʔδϣϯ͕͋Δ (ap-northeast-1) ଞͷαʔϏε (Route53, ELB, S3…) ͱͷ࿈ܞɺ  ಉҰϦʔδϣϯͰ૊ΊΔ ϥϯχϯάίετ͕ʢݸਓӡ༻ʹ͸ʣߴ͍

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DigitalOcean ϥϯχϯάίετ͕͍҆ సૹྔ 1TB ·Ͱ͸ແྉ ࠷΋ۙͯ͘γϯΨϙʔϧͳͷͰ  ౦ژͷϚγϯʹൺ΂ϨΠςϯγ͕ൃੜ͢Δ

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݄ʑͷ͓ࢧ෷ྉۚ sakura VPS 2G  1,552ԁ DigitalOcean 1g*1 + 512mb*2  20.88 USD = 2,499ԁ t2.micro*3  43.9 USD = 5,254ԁ t2.micro*1 + ELB + db.t2.micro + cache.t2.micro  76.72 USD = 9,179ԁ Πϯελϯε͸੍࣌ؒ՝ۚc"84BQOPSUIFBTUc3PVUFͱ4ͱసૹྔ͸ؚ·ͳ͍

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෭࢈෺ dtan4/c2y  Cloud-Conﬁg Λ Ruby DSL Ͱॻ͘ dtan4/terraforming  طଘͷϦιʔεΛ terraform ܗࣜʹม׵

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·ͱΊ ͘͞Β VPS ຊ౰ʹίεύ͕ྑ͍ AWS ࢖͍͍ͨ… ͢΂ͯͷΞϓϦΛίϯςφԽ͢Δ ·ͩґଘؔ܎ͱϗετΞοϓσʔτͰ  ফ໣ͯ͠Δͷʁ